CN105652577B - a projector - Google Patents
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- CN105652577B CN105652577B CN201610229008.4A CN201610229008A CN105652577B CN 105652577 B CN105652577 B CN 105652577B CN 201610229008 A CN201610229008 A CN 201610229008A CN 105652577 B CN105652577 B CN 105652577B
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- 238000003825 pressing Methods 0.000 claims description 27
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- 238000012634 optical imaging Methods 0.000 abstract description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 43
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Projection Apparatus (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
Description
技术领域technical field
本发明涉及影像处理技术领域，特别涉及一种投影仪。The invention relates to the technical field of image processing, in particular to a projector.
背景技术Background technique
投影仪是一种用来放大显示图像的投影装置，目前已经广泛应用于会议室演示及家庭中通过连接DVD影碟机等设备在大屏幕上观看电影。在电影院，也已取代老电影胶片的数码影院放映机，被用作面向硬盘数字数据的银幕。A projector is a projection device used to magnify and display images. It has been widely used in conference room presentations and at home to watch movies on a large screen by connecting DVD players and other equipment. In movie theaters, digital cinema projectors, which have also replaced old film films, are used as screens for digital data on hard drives.
投影仪显示图像的原理是先将光线照射到图像显示元件上来产生影像，然后通过镜头进行投影。投影仪的图像显示元件包括利用透光产生图像的透过型和利用反射光产生图像的反射型。无论哪一种类型，都是将投影灯的光线分成红、绿、蓝3色，再产生各种颜色的图像。因为元件本身只能进行单色显示，因此就要利用3枚元件分别生成3色成分。然后再通过棱镜将这3色图像合成为1个图像，最后通过镜头投影到屏幕上。使用图像显示元件，分别产生红、绿、蓝3色图像，然后通过合成进行投影。The principle of a projector displaying an image is to first irradiate light onto an image display element to generate an image, and then project it through a lens. Image display elements of projectors include a transmissive type that generates images using transmitted light and a reflective type that generates images using reflected light. Regardless of the type, the light of the projection lamp is divided into three colors: red, green, and blue, and then images of various colors are generated. Because the component itself can only display monochrome, it is necessary to use 3 components to generate 3 color components respectively. Then the 3-color images are synthesized into 1 image through a prism, and finally projected onto the screen through a lens. Using image display components, three color images of red, green, and blue are generated respectively, and then projected through synthesis.
图像显示元件包括3类，其中采用液晶的有2类：采用光透过型液晶的透过型液晶元件和采用可反射光的反射型液晶元件。后一种元件是DMD(数字微镜元件)，每个像素使用一个微镜，通过改变反射光的方向来生成图像。There are three types of image display elements, of which there are two types using liquid crystals: transmissive liquid crystal elements that use light-transmitting liquid crystals and reflective liquid crystal elements that use reflective light. The latter component is a DMD (Digital Micromirror Device), which uses a micromirror per pixel to create an image by redirecting reflected light.
透过型液晶元件生成图像的原理与已经广泛用作普通电脑显示屏的液晶显示器相同。在日本，精工爱普生和索尼两公司已经开始提供这种元件。投影仪用的液晶元件是用高温多晶硅液晶制造的。因为它不同于普通液晶显示器，通过将小像素生成的图像放大至数百倍后进行投影，因此，极其微小的缺陷放大后都会非常明显，在制造的时候需要相当高的精度。透过型液晶元件的工作原理与液晶显示器完全相同。液晶分子在加电后方向就会改变，由液晶分子的方向来调节是否让光线通过，以此显示白色和黑色。Transmissive liquid crystal elements generate images on the same principle as liquid crystal displays that have been widely used as ordinary computer display screens. In Japan, Seiko Epson and Sony have begun to provide such components. The liquid crystal element used in the projector is made of high temperature polysilicon liquid crystal. Because it is different from ordinary liquid crystal displays, the image generated by the small pixels is magnified hundreds of times and then projected. Therefore, extremely small defects will be very obvious after magnification, and quite high precision is required in manufacturing. The working principle of the transmissive liquid crystal element is exactly the same as that of the liquid crystal display. The direction of the liquid crystal molecules will change after power is applied, and the direction of the liquid crystal molecules can be used to adjust whether to let light pass through, so as to display white and black.
目前市场上的投影仪，前端支撑端大都为固定式，不利于调节投射角度，且其投射成像受映射面平整度影响较大。Most of the projectors currently on the market have a fixed front support end, which is not conducive to adjusting the projection angle, and the projection image is greatly affected by the flatness of the mapping surface.
发明内容Contents of the invention
本部分的目的在于概述本发明的实施例的一些方面以及简要介绍一些较佳实施例。在本部分以及本申请的说明书摘要和发明名称中可能会做些简化或省略以避免使本部分、说明书摘要和发明名称的目的模糊，而这种简化或省略不能用于限制本发明的范围。The purpose of this section is to outline some aspects of embodiments of the invention and briefly describe some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and titles of this application, to avoid obscuring the purpose of this section, the abstract and titles, and such simplifications or omissions should not be used to limit the scope of the invention.
鉴于上述和/或现有投影仪中存在的问题，提出了本发明。In view of the problems mentioned above and/or existing in existing projectors, the present invention is proposed.
因此，本发明其中一个目的是提供一种投影仪。Therefore, one object of the present invention is to provide a projector.
为解决上述技术问题，根据本发明的一个方面，本发明提供了如下技术方案：一种投影仪，包括，信号输入单元，用以接收图像信息；光学成像单元，按照所输入的图像信息对从光源射出的光进行调制而形成光学像；图像输出单元，输出上述图像信息；其还包括，处理单元，包括主板模块、驱动模块和电源模块，电源模块通过外部电源为投影仪提供需要的电压电源，主板模块和驱动模块组成能够处理多媒体文件的功能部件；以及，设置在投影仪前端底部的切换装置，所述切换装置能够切换投影仪投影的高低位置，其中，所述切换装置，其包括设置在投影仪下部的空心圆柱体的切换上管、活动连接在切换上管中的切换支脚和切换传动组件，所述切换支脚设置在切换上管中能够上下伸缩，所述切换传动组件能够控制切换支脚将所述投影仪稳定在不同高度的位置。In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: a projector, including a signal input unit for receiving image information; The light emitted by the light source is modulated to form an optical image; the image output unit outputs the above-mentioned image information; it also includes a processing unit, including a motherboard module, a drive module and a power module, and the power module provides the required voltage power for the projector through an external power supply , the motherboard module and the drive module form functional parts capable of processing multimedia files; and, a switching device arranged at the bottom of the front end of the projector, the switching device can switch the high and low positions of the projector projection, wherein the switching device includes setting The switching upper tube of the hollow cylinder at the lower part of the projector, the switching leg and the switching transmission assembly movably connected in the switching upper tube, the switching leg is arranged in the switching The feet stabilize the projector at different heights.
作为本发明所述投影仪的一种优选方案，其中：所述切换传动组件包括高位齿管、切换齿管、按压齿管和高位弹簧；所述高位齿管为区分为上部空间和下部空间的空心圆柱体，其中，上部空间的内径大于下部空间的内径，如此，内径不同的上部空间和下部空间的连接处，即形成了接触部，所述接触部沿圆周设置若干个尖端向上的M形凸起高位齿，M形的高位齿四条边中不相邻的两条竖直向上，为直边，另外两条边与竖直的两边形成的夹角为60°～80°，为斜边，下部空间的内表面设置有上下通透的切换长槽，相邻的切换长槽之间间隔至少一个M形的高位齿。As a preferred solution of the projector in the present invention, wherein: the switching transmission assembly includes a high-position tooth tube, a switching tooth tube, a pressing tooth tube and a high-position spring; the high-position tooth tube is divided into an upper space and a lower space. Hollow cylinder, wherein the inner diameter of the upper space is larger than the inner diameter of the lower space, so that the connection between the upper space and the lower space with different inner diameters forms a contact portion, and the contact portion is provided with several M-shaped points with upward points along the circumference. Protruding high-position teeth, two non-adjacent sides of the M-shaped high-position teeth are vertically upward, which is a straight side, and the angle formed between the other two sides and the two vertical sides is 60°～80°, which is a hypotenuse , the inner surface of the lower space is provided with up and down transparent switching long grooves, and at least one M-shaped high-position tooth is spaced between adjacent switching long grooves.
作为本发明所述投影仪的一种优选方案，其中：所述切换齿管为空心圆柱体，切换齿管外表面设置有与切换长槽相配合的导向条，切换齿管下端沿圆周设置若干个首尾相连V形凸起状的切换齿，一个切换齿包括两个相邻相交的折面，导向条的顶面是导向斜面，且两个相邻的导向条之间至少间隔一个切换齿。As a preferred solution of the projector in the present invention, wherein: the switching tooth tube is a hollow cylinder, the outer surface of the switching tooth tube is provided with a guide strip matching the switching long groove, and the lower end of the switching tooth tube is provided with several A V-shaped protruding switching tooth connected end to end, one switching tooth includes two adjacent intersecting folding surfaces, the top surface of the guide strip is a guiding slope, and at least one switching tooth is spaced between two adjacent guiding strips.
作为本发明所述投影仪的一种优选方案，其中：所述按压齿管为带有凸起的驱动条的圆柱体，所述驱动条上端为倒V形尖端的驱动齿，驱动条与高位齿管的切换长槽相配合。As a preferred solution of the projector in the present invention, wherein: the pressing tooth tube is a cylinder with a raised driving bar, the upper end of the driving bar is a driving tooth with an inverted V-shaped tip, and the driving bar is connected to the high position The switching slots of the toothed tubes match.
作为本发明所述投影仪的一种优选方案，其中：所述高位齿管固定在切换装置的切换上管内的投影仪底部上，按压齿管下端固定连接在切换支脚内的底端，切换齿管通过一个贯穿部件同轴活动连接在按压齿管内部底端，切换齿管下端与按压齿管上端的距离活动连接在1～2mm，且切换齿管能够绕该贯穿部件自由转动。As a preferred solution of the projector in the present invention, wherein: the high-position toothed tube is fixed on the bottom of the projector in the switching upper tube of the switching device, the lower end of the pressing toothed tube is fixedly connected to the bottom end of the switching leg, and the switching gear The tube is coaxially and movably connected to the inner bottom of the pressing tooth tube through a penetrating part, the distance between the lower end of the switching tooth tube and the upper end of the pressing tooth tube is movably connected at 1-2 mm, and the switching tooth tube can freely rotate around the penetrating part.
作为本发明所述投影仪的一种优选方案，其中：所述高位齿管和按压齿管能够在高位齿管的内孔里上下活动，高位弹簧设置在切换支脚和切换上管之间；按压一次切换装置，高位齿管会卡住切换齿管，投影仪处于低位置状态，再按压一次切换装置，高位齿管放开切换齿管，受高位弹簧的作用投影仪上升一端距离，装置处于高位置状态。As a preferred solution of the projector in the present invention, wherein: the high-position tooth tube and the pressing tooth tube can move up and down in the inner hole of the high-position tooth tube, and the high-position spring is arranged between the switching leg and the switching upper tube; Switching the device once, the high-position tooth tube will block the switching tooth tube, and the projector is in a low position state. Press the switching device again, and the high-position tooth tube will release the switching tooth tube. location status.
作为本发明所述投影仪的一种优选方案，其中：还包括，识别单元，用以采集被投射面的信息，得到自识别单元至所述被投射面的距离数据信息并反馈至处理单元；以及，处理单元，包括主板模块、驱动模块和电源模块，电源模块通过外部电源为投影仪提供需要的电压电源，主板模块和驱动模块组成能够处理多媒体文件的功能部件，对所述被投射面的信息进行处理，当被投射面为平面时，所述处理单元不处理图像信息；当被投射面为非平面时，所述处理单元处理图像信息使得经图像输出单元投射至被投射面的图像为视觉上的二维平面图像。As a preferred solution of the projector in the present invention, it further includes: an identification unit for collecting information on the projected surface, obtaining distance data information from the identification unit to the projected surface and feeding it back to the processing unit; And, the processing unit includes a mainboard module, a drive module and a power supply module, the power supply module provides the required voltage power supply for the projector through an external power supply, the mainboard module and the drive module form a functional part capable of processing multimedia files, and control the projected surface. When the projected surface is flat, the processing unit does not process the image information; when the projected surface is non-planar, the processing unit processes the image information so that the image projected to the projected surface via the image output unit is A visual two-dimensional flat image.
作为本发明所述投影仪的一种优选方案，其中：所述识别单元包括信号发射部件和信号接收部件，所述信号发射部件发射特定频率的信号，信号接收部件接收所述特定频率的信号，当识别方向遇到障碍物时，信号反射回来被所述信号接收部件接收，并反馈到所述处理单元。As a preferred solution of the projector in the present invention, wherein: the identification unit includes a signal transmitting part and a signal receiving part, the signal transmitting part transmits a signal of a specific frequency, and the signal receiving part receives the signal of a specific frequency, When the recognition direction encounters an obstacle, the signal is reflected back, received by the signal receiving component, and fed back to the processing unit.
作为本发明所述投影仪的一种优选方案，其中：所述识别单元包括信号发射部件、信号接收部件、识别信号处理集成电路板和识别信号驱动板，信号发射部件包括摄像头和红外传感器,摄像头对投影目标去进行拍照，红外传感器发射特定频率的信号，信号接收部件接收经过投影目标区反射回来的特定频率信号，摄像头的拍照数据和信号接收部件接受到的红外数据经过识别信号处理集成电路板处理成数字信号，通过识别信号驱动板传输到处理单元。As a preferred solution of the projector of the present invention, wherein: the identification unit includes a signal transmitting part, a signal receiving part, an identification signal processing integrated circuit board and an identification signal driving board, the signal emitting part includes a camera and an infrared sensor, and the camera To take pictures of the projection target, the infrared sensor emits a signal of a specific frequency, and the signal receiving part receives the signal of a specific frequency reflected back from the projection target area, and the photo data of the camera and the infrared data received by the signal receiving part pass through the identification signal processing integrated circuit board It is processed into a digital signal and transmitted to the processing unit through the identification signal driver board.
本发明的有益效果在于：根椐此种结构，投影仪具备了高低位的切换功能，因此，更有利于投射角度的调整。投影仪的使用者可以根据投影仪的设置状况很容易地变更前端摄影的角度，而，识别单元和处理单元的独特设置使得成像不再仅仅受制于平整的成像面，提高了整体的操作性。The beneficial effect of the present invention is that: based on this structure, the projector has the switching function of high and low positions, so it is more conducive to the adjustment of the projection angle. The user of the projector can easily change the angle of the front-end photography according to the setting of the projector, and the unique setting of the recognition unit and the processing unit makes the imaging no longer limited by the flat imaging surface, which improves the overall operability.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。其中：In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort. in:
图1为本发明所述投影仪整体结构示意图，图中为展示出各个结构单元故去掉部分外壳；Fig. 1 is a schematic diagram of the overall structure of the projector of the present invention, in which part of the shell is removed to show each structural unit;
图2为本发明所述投影仪中识别单元的结构示意图；Fig. 2 is a structural schematic diagram of the identification unit in the projector of the present invention;
图3为本发明所述投影仪中光学成像单元和图像输出单元的结构示意图；Fig. 3 is a structural schematic diagram of an optical imaging unit and an image output unit in the projector of the present invention;
图4为本发明所述投影仪整体结构示意图；4 is a schematic diagram of the overall structure of the projector of the present invention;
图5为本发明所述投影仪从底部视角的整体结构示意图；5 is a schematic diagram of the overall structure of the projector according to the present invention from a bottom perspective;
图6为本发明所述投影仪中高位齿管的结构示意图；Fig. 6 is a schematic structural view of the high-position tooth tube in the projector according to the present invention;
图7为本发明所述投影仪中高位齿管的内部剖断结构示意图；Fig. 7 is a schematic diagram of the internal sectional structure of the high-position tooth tube in the projector according to the present invention;
图8为本发明所述投影仪中切换齿管的结构示意图；Fig. 8 is a structural schematic diagram of the switching gear tube in the projector according to the present invention;
图9为本发明所述投影仪中按压齿管的结构示意图；Fig. 9 is a schematic structural view of the pressing tooth tube in the projector according to the present invention;
图10为本发明所述投影仪中切换装置在低位结构示意图；Fig. 10 is a schematic diagram of the low-level structure of the switching device in the projector according to the present invention;
图11为本发明所述投影仪中切换装置在高位结构示意图；Fig. 11 is a schematic diagram of the high-level structure of the switching device in the projector according to the present invention;
图12为本发明所述投影仪中切换装置内部爆炸结构示意图；Fig. 12 is a schematic diagram of the internal explosion structure of the switching device in the projector according to the present invention;
图13为本发明所述投影仪中切换装置内部结构及其剖视示意图；Fig. 13 is a schematic diagram of the internal structure and cross-sectional view of the switching device in the projector according to the present invention;
图14为本发明所述投影仪中切换装置的按压齿管和切换齿管配合的结构示意图。Fig. 14 is a structural schematic diagram of the cooperation between the pressing tooth tube and the switching tooth tube of the switching device in the projector according to the present invention.
具体实施方式detailed description
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合说明书附图对本发明的具体实施方式做详细的说明。In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是本发明还可以采用其他不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似推广，因此本发明不受下面公开的具体实施例的限制。In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
其次，此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本说明书中不同地方出现的“在一个实施例中”并非均指同一个实施例，也不是单独的或选择性的与其他实施例互相排斥的实施例。Second, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.
实施例1Example 1
如图1所示，一个实施例中的投影仪包括，信号输入单元100、光学成像单元200、图像输出单元300、处理模块500和切换装置600。As shown in FIG. 1 , a projector in an embodiment includes a signal input unit 100 , an optical imaging unit 200 , an image output unit 300 , a processing module 500 and a switching device 600 .
信号输入单元100为多功能的连接装置，用以接收外部多媒体电器如电脑、电视、手机和各种播放器输出的图像等多媒体信息，包含USB、HDMI、Micro-USB、AV接口、RF射频输入接口、VGA接口端口和S-video等；识别单元400，用以采集被投射面的信息，得到自识别单元至所述被投射面的距离数据信息并反馈至处理单元；处理单元500，对所述被投射面的信息进行处理，当被投射面为平面时，处理单元不处理图像信息；当被投射面为非平面时，处理单元处理图像信息使得经图像输出单元投射至被投射面的图像为视觉上的二维平面图像。The signal input unit 100 is a multi-functional connection device for receiving multimedia information such as images output by external multimedia appliances such as computers, TVs, mobile phones and various players, including USB, HDMI, Micro-USB, AV interface, RF radio frequency input Interface, VGA interface port and S-video etc.; Identification unit 400, in order to collect the information of projected surface, obtain the distance data information from identification unit to described projected surface and feed back to processing unit; Processing unit 500, to all When the projected surface is flat, the processing unit does not process the image information; when the projected surface is non-planar, the processing unit processes the image information so that the image projected to the projected surface via the image output unit is a visual two-dimensional planar image.
如图3所示，图像输出单元300为带有防尘玻璃的投射凸透镜镜头。As shown in FIG. 3 , the image output unit 300 is a projection convex lens with a dustproof glass.
光学成像单元200，包括灯光驱动电路板201、成像驱动散热块201a、成像驱动散热风扇201a、金属卤化物灯202、第一反射镜203、红色分色镜204a、绿色分色镜204b、红色反射镜205a、绿色第一反射镜205b、绿色第二反射镜205c、红色液晶面板206a、蓝色液晶面板206b、绿色液晶面板206c和棱镜207。The optical imaging unit 200 includes a light driving circuit board 201, an imaging driving cooling block 201a, an imaging driving cooling fan 201a, a metal halide lamp 202, a first reflector 203, a red dichroic mirror 204a, a green dichroic mirror 204b, a red reflector Mirror 205a, green first reflective mirror 205b, green second reflective mirror 205c, red liquid crystal panel 206a, blue liquid crystal panel 206b, green liquid crystal panel 206c and prism 207.
成像驱动散热块201a和成像驱动散热风扇201a对灯光驱动电路板201和金属卤化物灯202产生的热量进行散热处理，以保证其工作的正常运行,灯光驱动电路板201将输送来的多媒体数据转化为灯光信号通过金属卤化物灯202用光信号发送出来，光信号遇到与金属卤化物灯202呈45°设置的第一反射镜203，第一反射镜203将光信号由横向转为纵向输送，红色分色镜204a在第一反射镜203前方且与第一反射镜203垂直，所以红色分色镜204a也是与横向呈45°方向设置，光信号到达红色分色镜204a，光信号中的红色光信号穿越红色分色镜204a继续向前输送，光信号中的蓝色光信号和绿色光信号则无法穿过红色分色镜204a，且被红色分色镜204a反射由纵向向前转变为与金属卤化物灯202射向相反的横向方向输送，红色反射镜205a设在红色分色镜204a纵向前部且与其平行，红色液晶面板206a设置在红色反射镜205a横向前部竖直状，所以，红色光信号达到并被红色反射镜205a转变为横向输送，红色光信号继续输送到红色液晶面板206a上。The imaging driving cooling block 201a and the imaging driving cooling fan 201a dissipate the heat generated by the lighting driving circuit board 201 and the metal halide lamp 202 to ensure their normal operation. The lighting driving circuit board 201 converts the transmitted multimedia data The light signal is sent out with light signal through the metal halide lamp 202, and the light signal encounters the first reflector 203 which is set at 45° to the metal halide lamp 202, and the first reflector 203 converts the light signal from horizontal to vertical transmission , the red dichroic mirror 204a is in front of the first reflecting mirror 203 and is perpendicular to the first reflecting mirror 203, so the red dichroic mirror 204a is also set in a direction of 45° with the lateral direction, and the optical signal reaches the red dichroic mirror 204a, and the The red light signal passes through the red dichroic mirror 204a and continues to be transported forward, while the blue light signal and the green light signal in the light signal cannot pass through the red dichroic mirror 204a, and are reflected by the red dichroic mirror 204a from longitudinally forward to forward The metal halide lamp 202 is transported in the opposite lateral direction, the red reflector 205a is arranged at the longitudinal front of the red dichroic mirror 204a and is parallel to it, and the red liquid crystal panel 206a is arranged vertically at the transverse front of the red reflector 205a, so, The red light signal reaches and is transformed into a horizontal transmission by the red reflector 205a, and the red light signal continues to be transmitted to the red liquid crystal panel 206a.
绿色分色镜204b设置在红色分色镜204a横向前方，且与红色分色镜204a平行，绿色第一反射镜205b设置在绿色分色镜204b横向前方，且与绿色分色镜204b平行，绿色第二反射镜205c设置在绿色第一反射镜205b纵向前方，且与绿色第一反射镜205b垂直，蓝色液晶面板206b水平状设置在绿色分色镜204b纵向前方，绿色液晶面板206c竖直状设置在绿色第二反射镜205c横向前方，红色液晶面板206a、蓝色液晶面板206b和绿色液晶面板206c围成一个“U”形，棱镜207设置在“U”形中，图像输出单元300设置在“U”形开口一面。The green dichroic mirror 204b is arranged in front of the red dichroic mirror 204a and parallel to the red dichroic mirror 204a, and the green first reflector 205b is arranged in front of the green dichroic mirror 204b and parallel to the green dichroic mirror 204b. The second reflecting mirror 205c is arranged in the longitudinal front of the green first reflecting mirror 205b, and is perpendicular to the green first reflecting mirror 205b, and the blue liquid crystal panel 206b is arranged horizontally in the longitudinal front of the green dichroic mirror 204b, and the green liquid crystal panel 206c is vertically arranged Set in the lateral front of the green second reflector 205c, the red liquid crystal panel 206a, the blue liquid crystal panel 206b and the green liquid crystal panel 206c form a "U" shape, the prism 207 is set in the "U" shape, and the image output unit 300 is set in "U"-shaped opening on one side.
蓝色光信号和绿色光信号输送到绿色分色镜204b上，蓝色光信号无法穿透被反射后沿纵向向前输送到蓝色液晶面板206b上，绿色光信号穿透绿色分色镜204b，然后分别经过绿色第一反射镜205b和绿色第二反射镜205c的反射，输送至绿色液晶面板206c，红色光信号、蓝色光信号和绿色光信号通过棱镜207整合到图像输出单元300以图像的形式投射出去。The blue light signal and the green light signal are delivered to the green dichroic mirror 204b, the blue light signal cannot penetrate and be reflected and then forwardly sent to the blue liquid crystal panel 206b along the longitudinal direction, the green light signal penetrates the green dichroic mirror 204b, and then Reflected by the green first reflector 205b and the green second reflector 205c respectively, they are sent to the green liquid crystal panel 206c, and the red light signal, the blue light signal and the green light signal are integrated into the image output unit 300 through the prism 207 and projected in the form of an image go out.
信号输入单元100将外部多媒体电器如电脑、电视、手机和各种播放器输出的图像等多媒体信息传输给投影仪的处理部件。成像驱动散热块201a和成像驱动散热风扇201a对灯光驱动电路板201和金属卤化物灯202产生的热量进行散热处理，以保证其工作的正常运行,灯光驱动电路板201将处理单元500输送来的多媒体数据转化为灯光信号通过金属卤化物灯202用光信号发送出来，光信号遇到第一反射镜203，第一反射镜203将光信号由横向转为纵向输送，光信号到达红色分色镜204a，光信号中的红色光信号穿越红色分色镜204a继续向前输送，光信号中的蓝色光信号和绿色光信号则无法穿过红色分色镜204a，且被红色分色镜204a反射由纵向向前转变为与金属卤化物灯202射向相反的横向方向输送，红色光信号达到并被红色反射镜205a转变为横向输送，红色光信号继续输送到红色液晶面板206a上。The signal input unit 100 transmits multimedia information such as images output by external multimedia appliances such as computers, televisions, mobile phones and various players to the processing unit of the projector. The imaging driving cooling block 201a and the imaging driving cooling fan 201a dissipate the heat generated by the lighting driving circuit board 201 and the metal halide lamp 202 to ensure their normal operation. The multimedia data is converted into a light signal and sent out through the metal halide lamp 202 with a light signal. The light signal encounters the first reflector 203, and the first reflector 203 converts the light signal from horizontal to vertical transmission, and the light signal reaches the red dichroic mirror. 204a, the red light signal in the light signal passes through the red dichroic mirror 204a and continues to be sent forward, the blue light signal and the green light signal in the light signal cannot pass through the red dichroic mirror 204a, and are reflected by the red dichroic mirror 204a The forward direction of the vertical direction is transformed into the transverse direction opposite to that of the metal halide lamp 202. The red light signal reaches and is transformed into a transverse direction by the red reflector 205a. The red light signal continues to be transmitted to the red liquid crystal panel 206a.
蓝色光信号和绿色光信号输送到绿色分色镜204b上，蓝色光信号无法穿透被反射后沿纵向向前输送到蓝色液晶面板206b上，绿色光信号穿透绿色分色镜204b，然后分别经过绿色第一反射镜205b和绿色第二反射镜205c的反射，输送至绿色液晶面板206c，红色光信号、蓝色光信号和绿色光信号通过棱镜207整合到图像输出单元300以图像的形式投射出去，即使得投射至被投射面的图像为视觉上的二维平面图像。The blue light signal and the green light signal are delivered to the green dichroic mirror 204b, the blue light signal cannot penetrate and be reflected and then forwardly sent to the blue liquid crystal panel 206b along the longitudinal direction, the green light signal penetrates the green dichroic mirror 204b, and then Reflected by the green first reflector 205b and the green second reflector 205c respectively, they are sent to the green liquid crystal panel 206c, and the red light signal, the blue light signal and the green light signal are integrated into the image output unit 300 through the prism 207 and projected in the form of an image out, that is, the image projected to the projected surface is a visual two-dimensional plane image.
参见图4和图5，处理单元500包括主板模块501、驱动模块502、电源模块503、散热模块504和散热风扇505，电源模块503通过外部电源为投影仪提供需要的电压电源，散热模块504和散热风扇505为处理单元500散热，主板模块501和驱动模块502组成一个可以处理多媒体文件的功能部件。4 and 5, the processing unit 500 includes a motherboard module 501, a drive module 502, a power module 503, a cooling module 504 and a cooling fan 505, the power module 503 provides the required voltage power for the projector through an external power supply, and the cooling module 504 and The heat dissipation fan 505 dissipates heat for the processing unit 500, and the main board module 501 and the driver module 502 form a functional component capable of processing multimedia files.
如图10～14所示，切换装置600包括，设置在投影仪底部601的空心圆柱体的切换上管602、活动连接在切换上管602中的切换支脚603和切换传动组件610，切换支脚603的上端外侧设置有限位凸起603a，切换上管602的空心下端内侧设置有与限位凸起603a相配合的阻挡凸起602a，由此，限位凸起603a和阻挡凸起602a的配合，对伸缩的最高位置进行了限制。切换支脚603设置在切换上管602中，且能够上下伸缩，其伸缩范围是投影仪底部601和切换上管602的底部(即阻挡凸起602a)范围内。As shown in Figures 10-14, the switching device 600 includes a hollow cylindrical switching upper tube 602 arranged at the bottom 601 of the projector, a switching leg 603 movably connected in the switching upper tube 602 and a switching transmission assembly 610, the switching leg 603 A limiting protrusion 603a is provided on the outer side of the upper end of the top tube 602, and a blocking protrusion 602a matched with the limiting protrusion 603a is provided on the inner side of the hollow lower end of the switching upper tube 602. Thus, the cooperation of the limiting protrusion 603a and the blocking protrusion 602a, The highest position of telescoping is limited. The switching leg 603 is arranged in the switching upper tube 602 and can be stretched up and down, and its telescoping range is within the scope of the bottom of the projector 601 and the bottom of the switching upper tube 602 (ie, the blocking protrusion 602a).
切换传动组件610包括高位齿管620、切换齿管630、按压齿管640和高位弹簧650。高位齿管620为下部内径小于上部内径的空心圆柱体，高位齿管620下部内径较小突出的部分顶部沿圆周设置若干个尖端向上的“M”形凸起高位齿621，“M”形的高位齿621四条边中不相邻的两条竖直向上，另外两条边与竖直的两边形成的夹角为60°～80°，相邻的高位齿621之间设置有高位齿管620下部部分内表面向上延伸的上下通透的切换长槽624。The switching transmission assembly 610 includes a high position tooth tube 620 , a switching tooth tube 630 , a pressing tooth tube 640 and a high position spring 650 . The high-position tooth tube 620 is a hollow cylinder whose lower inner diameter is smaller than the upper inner diameter. The top of the lower inner diameter of the high-position tooth tube 620 is smaller and protruding. Several "M"-shaped raised high-position teeth 621 are arranged along the circumference. The "M"-shaped Among the four sides of the high-position teeth 621, two non-adjacent two sides are vertically upward, and the angle formed between the other two sides and the two vertical sides is 60°-80°, and high-position tooth tubes 620 are arranged between adjacent high-position teeth 621 The upper and lower transparent switching slots 624 extend upwards on the inner surface of the lower part.
具体的，如图6、7所示，高位齿管620为区分为上部空间620a和下部空间620b的空心圆柱体，其中，上部空间620a的内径大于下部空间620b的内径，如此，内径不同的上部空间620a和下部空间620b的连接处，即形成了接触部，所述接触部沿圆周设置若干个尖端向上的“M”形凸起高位齿621，“M”形的高位齿621四条边中不相邻的两条竖直向上，为直边622，另外两条边与竖直的两边形成的夹角为60°～80°，为斜边623，下部空间620b的内表面设置有上下通透的切换长槽624，相邻的切换长槽624之间间隔至少一个“M”形的高位齿621。当然，在图5和图11所示的实施方式中，仅仅示出了间隔一个“M”形的高位齿621的状态。Specifically, as shown in Figures 6 and 7, the high-position toothed tube 620 is a hollow cylinder divided into an upper space 620a and a lower space 620b, wherein the inner diameter of the upper space 620a is greater than the inner diameter of the lower space 620b, so that the upper space with different inner diameters The junction of the space 620a and the lower space 620b forms a contact portion, and the contact portion is provided with several “M”-shaped protruding high-position teeth 621 along the circumference. Among the four sides of the “M”-shaped high-position teeth 621 The adjacent two vertical upwards are straight sides 622, and the angle between the other two sides and the two vertical sides is 60°-80°, which is hypotenuse 623. The inner surface of the lower space 620b is provided with up and down transparent There is at least one "M" shaped high-position tooth 621 between adjacent switching long slots 624 . Of course, in the embodiments shown in FIG. 5 and FIG. 11 , only the state of the high-position teeth 621 separated by an "M" shape is shown.
如图8所示，切换齿管630为空心圆柱体，切换齿管630外表面设置有与切换长槽624相配合的导向条632，切换齿管630下端沿圆周设置若干个首尾相连“V”形凸起状的切换齿631，具体来说，一个切换齿631包括两个相邻相交的折面631a。导向条632的顶面是导向斜面634，该导向斜面634的特殊之处在于：一个导向斜面634包括或者可以说，构成了切换齿631“V”形凹槽中的一个折面631a，所以导向条632顶端是一个导向斜面634，且两个相邻的导向条632之间至少间隔一个切换齿631。As shown in Figure 8, the switching tooth tube 630 is a hollow cylinder, and the outer surface of the switching tooth tube 630 is provided with a guide bar 632 that matches the switching slot 624. The lower end of the switching tooth tube 630 is provided with several "V" connected end to end along the circumference. The protruding switching tooth 631, specifically, one switching tooth 631 includes two adjacent intersecting folding surfaces 631a. The top surface of the guide bar 632 is a guide bevel 634, and the special feature of this guide bevel 634 is: a guide bevel 634 includes or can be said to constitute a folding surface 631a in the "V" groove of the switching tooth 631, so the guide The top of the strips 632 is a guiding slope 634 , and at least one switching tooth 631 is spaced between two adjacent guiding strips 632 .
如图9所示，圆柱状的按压齿管640上设置有凸出其表面的驱动条641，驱动条641下端为“V”形尖端的驱动齿642，驱动条641突出于圆柱状的按压齿管640的上端边缘，且也与高位齿管620的切换长槽624相配合，如此，驱动条641下端的驱动齿642与切换齿管630下端的切换齿631相活动配合，此处所述的“相活动配合”，具体指的是：“V”形尖端的驱动齿642与若干个首尾相连“V”形凸起状的切换齿631相配合，且能够相对运动。这里所说的“相配合”，参见图12，并非驱动齿642的“V”形尖端恰好“落在”或者“对应”切换齿631的“V”形凸起的上部的缺口中，而是“对应”形成切换齿631的“V”形凸起的一个非最低点的折面631a上，如此，当导向条632“脱离”切换长槽624的限位继续向上运动时，驱动齿642会给予导向条632一个能够迫使其发生相对旋转运动的力。As shown in Figure 9, the cylindrical pressing tooth tube 640 is provided with a driving bar 641 protruding from its surface, the lower end of the driving bar 641 is a driving tooth 642 with a "V"-shaped tip, and the driving bar 641 protrudes from the cylindrical pressing tooth The edge of the upper end of the tube 640 is also matched with the switching long groove 624 of the high-position toothed tube 620, so that the driving tooth 642 at the lower end of the driving bar 641 is movably matched with the switching tooth 631 at the lower end of the switching toothed tube 630. "Movely matching" specifically refers to: the drive tooth 642 with a "V"-shaped tip cooperates with several "V"-shaped convex switching teeth 631 connected end to end, and can move relative to each other. The "cooperating" mentioned here, referring to Fig. 12, is not that the "V" shaped tip of the driving tooth 642 just "falls" or "corresponds" in the upper notch of the "V" shaped projection of the switching tooth 631, but "Corresponding" to form the "V" shape of the switching tooth 631 on a non-lowest point of the folding surface 631a, so that when the guide bar 632 "breaks away" from the limit of the switching slot 624 and continues to move upward, the driving tooth 642 will Give the guide bar 632 a force that can force it to undergo relative rotational movement.
如图12～14所示，高位齿管620固定在切换装置600的切换上管602内的投影仪底部601上，按压齿管640下端固定连接在切换支脚603内的底端，切换齿管630通过一个贯穿部件660同轴活动连接在按压齿管640内部底端，切换齿管630下端与按压齿管640上端的距离活动连接在1～2mm，且切换齿管630能绕该贯穿部件660自由转动，高位齿管620通过导向条632与切换长槽624活动配合，按压齿管640通过驱动条641与切换长槽624活动配合，切换齿管630和按压齿管640能够在高位齿管620的内部空腔中上下活动，高位弹簧650设置在切换支脚603和切换上管602之间。As shown in Figures 12-14, the high-position tooth tube 620 is fixed on the bottom 601 of the projector in the switching upper tube 602 of the switching device 600, and the lower end of the pressing tooth tube 640 is fixedly connected to the bottom end of the switching leg 603, and the switching tooth tube 630 A penetrating part 660 is coaxially and movably connected to the inner bottom of the pressing tooth tube 640, the distance between the lower end of the switching tooth tube 630 and the upper end of the pressing tooth tube 640 is movably connected at 1-2 mm, and the switching tooth tube 630 can freely go around the penetrating part 660 Rotate, the high-position toothed tube 620 movably cooperates with the switching long slot 624 through the guide bar 632, and the pressing toothed tube 640 movably cooperates with the switching long slot 624 through the driving bar 641. The inner cavity moves up and down, and the high position spring 650 is arranged between the switching leg 603 and the switching upper tube 602 .
如图10、12、13、14所示，按压投影仪，高位齿管620下降，当切换齿管630的切换齿631高于高位齿管620的高位齿621时，切换齿管630的导向条632整体都从切换长槽624中滑出，按压齿管640的驱动齿642的尖端挤压切换齿管630的切换齿631的一个导向斜面634，同时挤压外侧导向条632顶端的导向斜面634，切换齿管630受到导向斜面634方向的挤压力旋转一定角度，导向条632和切换长槽624在竖直方向上不在是同一位置，松开投影仪，受高位弹簧650的恢复弹力，投影仪带着高位齿管620上升，导向条632顶端顶向高位齿621的一个斜边623，最终导向条632顶端会顶到高位齿621“M”形状的中间凹槽内，高位齿管620不在上升，此时整个设备处于低位置状态。As shown in Figures 10, 12, 13, and 14, press the projector, and the high-position tooth tube 620 will descend. 632 as a whole slides out from the switching long groove 624, and the tip of the driving tooth 642 of the pressing tooth tube 640 squeezes a guide slope 634 of the switching tooth 631 of the switching tooth tube 630, and simultaneously squeezes the guide slope 634 at the top of the outer guide bar 632 , the switching gear tube 630 is rotated at a certain angle by the extrusion force in the direction of the guide slope 634, the guide bar 632 and the switching long slot 624 are not in the same position in the vertical direction, the projector is released, and the projection is affected by the restoring elastic force of the high spring 650. The instrument rises with the high-position tooth tube 620, and the top of the guide bar 632 pushes against a hypotenuse 623 of the high-position tooth 621. Finally, the top of the guide bar 632 will push against the middle groove of the "M" shape of the high-position tooth 621, and the high-position tooth tube 620 is not in place. Rising, at this time the entire device is in a low position state.
如图11～14所示，再次按压投影仪，高位齿管620下降，当切换齿管630的切换齿631高于于高位齿管620的高位齿621时，切换齿管630的导向条632整体从高位齿621中“脱出”，按压齿管640的驱动齿642的尖端挤压切换齿管630的切换齿631的一个导向斜面634，切换齿管630受到导向斜面634方向的挤压力旋转一定角度，松开投影仪，受高位弹簧650的恢复弹力，高位齿管620上升，导向条632顶端顶向高位齿621的另一个斜边623，最终导向条632底端会滑进与该斜边623相连的切换长槽624中，高位齿管620继续上升到切换上管602的上部，此时整个设备处于高位置状态。As shown in Figures 11-14, press the projector again, and the high-position tooth tube 620 will descend. When the switching tooth 631 of the switching tooth tube 630 is higher than the high-position tooth 621 of the high-position tooth tube 620, the guide bar 632 of the switching tooth tube 630 will "Get out" from the high-position tooth 621, press the tip of the driving tooth 642 of the tooth tube 640 to squeeze a guiding slope 634 of the switching tooth 631 of the switching tooth tube 630, and the switching tooth tube 630 is rotated by the pressing force in the direction of the guiding slope 634. When the projector is released, the high-position tooth tube 620 rises due to the recovery force of the high-position spring 650, and the top of the guide strip 632 pushes against the other hypotenuse 623 of the high-position tooth 621, and finally the bottom end of the guide strip 632 will slide into the hypotenuse In the switching slot 624 connected with 623, the high-position gear tube 620 continues to rise to the top of the switching upper tube 602, and now the whole device is in a high position state.
实施例2Example 2
如图1所示，一个实施例中的投影仪包括，信号输入单元100、光学成像单元200、图像输出单元300、识别单元400、处理单元500和切换装置600。As shown in FIG. 1 , a projector in an embodiment includes a signal input unit 100 , an optical imaging unit 200 , an image output unit 300 , an identification unit 400 , a processing unit 500 and a switching device 600 .
信号输入单元100为多功能的连接装置，用以接收外部多媒体电器如电脑、电视、手机和各种播放器输出的图像等多媒体信息，包含USB、HDMI、Micro-USB、AV接口、RF射频输入接口、VGA接口端口和S-video等；识别单元400，用以采集被投射面的信息，得到自识别单元至所述被投射面的距离数据信息并反馈至处理单元；处理单元500，对所述被投射面的信息进行处理，当被投射面为平面时，处理单元不处理图像信息；当被投射面为非平面时，处理单元处理图像信息使得经图像输出单元投射至被投射面的图像为视觉上的二维平面图像。The signal input unit 100 is a multi-functional connection device for receiving multimedia information such as images output by external multimedia appliances such as computers, TVs, mobile phones and various players, including USB, HDMI, Micro-USB, AV interface, RF radio frequency input Interface, VGA interface port and S-video etc.; Identification unit 400, in order to collect the information of projected surface, obtain the distance data information from identification unit to described projected surface and feed back to processing unit; Processing unit 500, to all When the projected surface is flat, the processing unit does not process the image information; when the projected surface is non-planar, the processing unit processes the image information so that the image projected to the projected surface via the image output unit is a visual two-dimensional planar image.
如图2所示，识别单元400包括信号发射部件401、信号接收部件402、识别信号处理集成电路板403和识别信号驱动板404，信号发射部件401包括摄像头401a和红外传感器401b,摄像头401a对投影目标去进行拍照，红外传感器401b发射特定频率的信号，信号接收部件402接收经过投影目标区反射回来的特定频率信号，摄像头401a的拍照数据和信号接收部件402接受到的红外数据经过识别信号处理集成电路板403处理成数字信号，通过识别信号驱动板404传输到处理单元500。As shown in Figure 2, the identification unit 400 includes a signal emitting part 401, a signal receiving part 402, an identification signal processing integrated circuit board 403 and an identification signal driving board 404, the signal emitting part 401 includes a camera 401a and an infrared sensor 401b, and the camera 401a is to the projection When the target goes to take pictures, the infrared sensor 401b emits a signal of a specific frequency, and the signal receiving part 402 receives the signal of a specific frequency reflected back through the projected target area, and the photographing data of the camera 401a and the infrared data received by the signal receiving part 402 are integrated through identification signal processing The digital signal is processed by the circuit board 403 and transmitted to the processing unit 500 through the identification signal driving board 404 .
如图3所示，图像输出单元300为带有防尘玻璃的投射凸透镜镜头。As shown in FIG. 3 , the image output unit 300 is a projection convex lens with a dustproof glass.
光学成像单元200，包括灯光驱动电路板201、成像驱动散热块201a、成像驱动散热风扇201a、金属卤化物灯202、第一反射镜203、红色分色镜204a、绿色分色镜204b、红色反射镜205a、绿色第一反射镜205b、绿色第二反射镜205c、红色液晶面板206a、蓝色液晶面板206b、绿色液晶面板206c和棱镜207。The optical imaging unit 200 includes a light driving circuit board 201, an imaging driving cooling block 201a, an imaging driving cooling fan 201a, a metal halide lamp 202, a first reflector 203, a red dichroic mirror 204a, a green dichroic mirror 204b, a red reflector Mirror 205a, green first reflective mirror 205b, green second reflective mirror 205c, red liquid crystal panel 206a, blue liquid crystal panel 206b, green liquid crystal panel 206c and prism 207.
成像驱动散热块201a和成像驱动散热风扇201a对灯光驱动电路板201和金属卤化物灯202产生的热量进行散热处理，以保证其工作的正常运行,灯光驱动电路板201将处理单元500输送来的多媒体数据转化为灯光信号通过金属卤化物灯202用光信号发送出来，光信号遇到与金属卤化物灯202呈45°设置的第一反射镜203，第一反射镜203将光信号由横向转为纵向输送，红色分色镜204a在第一反射镜203前方且与第一反射镜203垂直，所以红色分色镜204a也是与横向呈45°方向设置，光信号到达红色分色镜204a，光信号中的红色光信号穿越红色分色镜204a继续向前输送，光信号中的蓝色光信号和绿色光信号则无法穿过红色分色镜204a，且被红色分色镜204a反射由纵向向前转变为与金属卤化物灯202射向相反的横向方向输送，红色反射镜205a设在红色分色镜204a纵向前部且与其平行，红色液晶面板206a设置在红色反射镜205a横向前部竖直状，所以，红色光信号达到并被红色反射镜205a转变为横向输送，红色光信号继续输送到红色液晶面板206a上。The imaging driving cooling block 201a and the imaging driving cooling fan 201a dissipate the heat generated by the lighting driving circuit board 201 and the metal halide lamp 202 to ensure their normal operation. The multimedia data is converted into a light signal and sent out as a light signal through the metal halide lamp 202. The light signal encounters the first reflector 203 which is set at an angle of 45° to the metal halide lamp 202, and the first reflector 203 converts the light signal from horizontal to horizontal. For vertical transport, the red dichroic mirror 204a is in front of the first reflector 203 and is perpendicular to the first reflector 203, so the red dichroic mirror 204a is also set in a 45° direction with the horizontal direction, and the light signal reaches the red dichroic mirror 204a, and the light The red light signal in the signal passes through the red dichroic mirror 204a and continues to be forwarded, while the blue light signal and green light signal in the light signal cannot pass through the red dichroic mirror 204a, and are reflected by the red dichroic mirror 204a to move forward longitudinally. Transformed into a horizontal direction opposite to that of the metal halide lamp 202, the red reflector 205a is arranged at the longitudinal front of the red dichroic mirror 204a and is parallel to it, and the red liquid crystal panel 206a is arranged at the transverse front of the red reflector 205a in a vertical shape. , so, the red light signal reaches and is transformed into horizontal transmission by the red reflector 205a, and the red light signal continues to be transmitted to the red liquid crystal panel 206a.
绿色分色镜204b设置在红色分色镜204a横向前方，且与红色分色镜204a平行，绿色第一反射镜205b设置在绿色分色镜204b横向前方，且与绿色分色镜204b平行，绿色第二反射镜205c设置在绿色第一反射镜205b纵向前方，且与绿色第一反射镜205b垂直，蓝色液晶面板206b水平状设置在绿色分色镜204b纵向前方，绿色液晶面板206c竖直状设置在绿色第二反射镜205c横向前方，红色液晶面板206a、蓝色液晶面板206b和绿色液晶面板206c围成一个“U”形，棱镜207设置在“U”形中，图像输出单元300设置在“U”形开口一面。The green dichroic mirror 204b is arranged in front of the red dichroic mirror 204a and parallel to the red dichroic mirror 204a, and the green first reflector 205b is arranged in front of the green dichroic mirror 204b and parallel to the green dichroic mirror 204b. The second reflecting mirror 205c is arranged in the longitudinal front of the green first reflecting mirror 205b, and is perpendicular to the green first reflecting mirror 205b, and the blue liquid crystal panel 206b is arranged horizontally in the longitudinal front of the green dichroic mirror 204b, and the green liquid crystal panel 206c is vertically arranged Set in the lateral front of the green second reflector 205c, the red liquid crystal panel 206a, the blue liquid crystal panel 206b and the green liquid crystal panel 206c form a "U" shape, the prism 207 is set in the "U" shape, and the image output unit 300 is set in "U"-shaped opening on one side.
蓝色光信号和绿色光信号输送到绿色分色镜204b上，蓝色光信号无法穿透被反射后沿纵向向前输送到蓝色液晶面板206b上，绿色光信号穿透绿色分色镜204b，然后分别经过绿色第一反射镜205b和绿色第二反射镜205c的反射，输送至绿色液晶面板206c，红色光信号、蓝色光信号和绿色光信号通过棱镜207整合到图像输出单元300以图像的形式投射出去。The blue light signal and the green light signal are delivered to the green dichroic mirror 204b, the blue light signal cannot penetrate and be reflected and then forwardly sent to the blue liquid crystal panel 206b along the longitudinal direction, the green light signal penetrates the green dichroic mirror 204b, and then Reflected by the green first reflector 205b and the green second reflector 205c respectively, they are sent to the green liquid crystal panel 206c, and the red light signal, the blue light signal and the green light signal are integrated into the image output unit 300 through the prism 207 and projected in the form of an image go out.
如图4和5所示，处理单元500包括主板模块501、驱动模块502、电源模块503、散热模块504和散热风扇505，电源模块503通过外部电源为投影仪提供需要的电压电源，散热模块504和散热风扇505为处理单元500散热，主板模块501和驱动模块502组成一个可以处理多媒体文件的功能部件。As shown in Figures 4 and 5, the processing unit 500 includes a motherboard module 501, a drive module 502, a power module 503, a cooling module 504 and a cooling fan 505, the power module 503 provides the required voltage power for the projector through an external power supply, and the cooling module 504 The heat dissipation fan 505 is used to dissipate heat for the processing unit 500, and the main board module 501 and the driver module 502 form a functional component capable of processing multimedia files.
信号输入单元100将外部多媒体电器如电脑、电视、手机和各种播放器输出的图像等多媒体信息传输给处理单元500。The signal input unit 100 transmits multimedia information such as images output by external multimedia appliances such as computers, televisions, mobile phones and various players to the processing unit 500 .
识别单元400的摄像头401a对投影目标去进行拍照，红外传感器401b发射特定频率的信号，信号接收部件402接收经过投影目标区反射回来的特定频率信号，摄像头401a的拍照数据和信号接收部件402接受到的红外数据经过识别信号处理集成电路板403处理成数字信号，通过识别信号驱动板404传输到处理单元500，处理单元500将信息进行网格化矩阵划分区域，以D2像素为一个矩阵单元，区分为N个像素矩阵单元，由于投影仪总的像素值固定的，根据“近大远小”的视觉原理，在N个像素矩阵单元中，每个测距的距离数值，距离越远的像素矩阵面积越小，距离越近的像素矩阵面积越大，最近距离与最远距离的平均值不做像素改变，像素矩阵单元的修正值就等于实际距离除以[(最大距离+最小距离)再除以2]，再乘以D，就是最终的处理矩阵像素值，经处理单元500处理后的图像数据输送给光学成像单元200。The camera 401a of the identification unit 400 takes pictures of the projection target, the infrared sensor 401b emits a signal of a specific frequency, and the signal receiving part 402 receives the specific frequency signal reflected back through the projection target area, and the photographing data of the camera 401a and the signal receiving part 402 receive The infrared data is processed into a digital signal through the identification signal processing integrated circuit board 403, and is transmitted to the processing unit 500 through the identification signal driving board 404, and the processing unit 500 divides the information into gridded matrix areas, with D2 pixels as a matrix unit, It is divided into N pixel matrix units. Since the total pixel value of the projector is fixed, according to the visual principle of "near large, far small", in the N pixel matrix units, the distance value of each distance measurement, the farther the pixel The smaller the matrix area, the closer the pixel matrix area is, the larger the pixel matrix area is, the average value of the shortest distance and the farthest distance does not change the pixel, and the correction value of the pixel matrix unit is equal to the actual distance divided by [(maximum distance + minimum distance) and then Divided by 2], and then multiplied by D, is the final processing matrix pixel value, and the image data processed by the processing unit 500 is sent to the optical imaging unit 200 .
成像驱动散热块201a和成像驱动散热风扇201a对灯光驱动电路板201和金属卤化物灯202产生的热量进行散热处理，以保证其工作的正常运行,灯光驱动电路板201将处理单元500输送来的多媒体数据转化为灯光信号通过金属卤化物灯202用光信号发送出来，光信号遇到第一反射镜203，第一反射镜203将光信号由横向转为纵向输送，光信号到达红色分色镜204a，光信号中的红色光信号穿越红色分色镜204a继续向前输送，光信号中的蓝色光信号和绿色光信号则无法穿过红色分色镜204a，且被红色分色镜204a反射由纵向向前转变为与金属卤化物灯202射向相反的横向方向输送，红色光信号达到并被红色反射镜205a转变为横向输送，红色光信号继续输送到红色液晶面板206a上。The imaging driving cooling block 201a and the imaging driving cooling fan 201a dissipate the heat generated by the lighting driving circuit board 201 and the metal halide lamp 202 to ensure their normal operation. The multimedia data is converted into a light signal and sent out through the metal halide lamp 202 with a light signal. The light signal encounters the first reflector 203, and the first reflector 203 converts the light signal from horizontal to vertical transmission, and the light signal reaches the red dichroic mirror. 204a, the red light signal in the light signal passes through the red dichroic mirror 204a and continues to be sent forward, the blue light signal and the green light signal in the light signal cannot pass through the red dichroic mirror 204a, and are reflected by the red dichroic mirror 204a The forward direction of the vertical direction is transformed into the transverse direction opposite to that of the metal halide lamp 202. The red light signal reaches and is transformed into a transverse direction by the red reflector 205a. The red light signal continues to be transmitted to the red liquid crystal panel 206a.
蓝色光信号和绿色光信号输送到绿色分色镜204b上，蓝色光信号无法穿透被反射后沿纵向向前输送到蓝色液晶面板206b上，绿色光信号穿透绿色分色镜204b，然后分别经过绿色第一反射镜205b和绿色第二反射镜205c的反射，输送至绿色液晶面板206c，红色光信号、蓝色光信号和绿色光信号通过棱镜207整合到图像输出单元300以图像的形式投射出去，即使得投射至被投射面的图像为视觉上的二维平面图像。The blue light signal and the green light signal are delivered to the green dichroic mirror 204b, the blue light signal cannot penetrate and be reflected and then forwardly sent to the blue liquid crystal panel 206b along the longitudinal direction, the green light signal penetrates the green dichroic mirror 204b, and then Reflected by the green first reflector 205b and the green second reflector 205c respectively, they are sent to the green liquid crystal panel 206c, and the red light signal, the blue light signal and the green light signal are integrated into the image output unit 300 through the prism 207 and projected in the form of an image out, that is, the image projected to the projected surface is a visual two-dimensional plane image.
具体的，在这一实施方式中，投影仪常规投影像素为1024*768，根据需要解决的技术问题，即把视频映射到不规则墙面上而获取视觉角度平整的画面。因此，需要首先对像素进行网格化矩阵划分区域。这个矩阵密度根据实际需要可以调整。以102*102(即此时D取102)像素为一个矩阵单元，可以获取横向a1-a10个列，纵向可获取b1-b8个行(著名b8行为半行)。Specifically, in this embodiment, the conventional projection pixels of the projector are 1024*768, and according to the technical problem to be solved, that is, to map the video onto the irregular wall to obtain a picture with a flat visual angle. Therefore, the pixels need to be gridded and matrix-divided first. This matrix density can be adjusted according to actual needs. With 102*102 (that is, D takes 102 at this time) pixels as a matrix unit, horizontal a1-a10 columns can be obtained, and vertical b1-b8 rows can be obtained (the famous b8 row is half a row).
由于投影仪总的像素值是限定在1024*768，所以根据“近大远小”的视觉原理，在80个像素矩阵单元中，每个测距的距离数值，距离越远的像素矩阵面积越小，距离越近的像素矩阵面积越大。而最近距离与最远距离的平均值是不做像素改变的。所以，像素矩阵单元的修正值就等于实际距离除以[(最大距离+最小距离)再除以2]，再乘以102，就是最终的矩阵像素值。Since the total pixel value of the projector is limited to 1024*768, according to the visual principle of "near large, far small", in the 80 pixel matrix units, the distance value of each distance measurement, the farther the distance is, the larger the area of the pixel matrix is. The smaller the distance, the larger the area of the pixel matrix. The average value of the shortest distance and the furthest distance does not change pixels. Therefore, the correction value of the pixel matrix unit is equal to the actual distance divided by [(maximum distance + minimum distance) divided by 2], and then multiplied by 102, which is the final matrix pixel value.
识别单元400可以采用红外线扫描识别，通过红外线可以获取距离值，而为了实现最简便的获取矩阵的距离，所以可以设计一个红外矩阵，10个头的红外投射矩阵总的投射角度与投影仪的镜头的投射幅面一致。例如，投影的成像幅面是30度角，那么，红外矩阵的排列就以3度为一个单元进行横向排列，这样一次性可获取10组距离数值，然后纵向再度量8次，既获取80组距离的数值。The identification unit 400 can be identified by infrared scanning, and the distance value can be obtained through infrared rays. In order to realize the easiest way to obtain the distance of the matrix, an infrared matrix can be designed. The total projection angle of the infrared projection matrix of 10 heads is the same as that of the lens of the projector. The projection format is the same. For example, if the projected imaging format is at an angle of 30 degrees, then the arrangement of the infrared matrix is arranged horizontally with a unit of 3 degrees, so that 10 sets of distance values can be obtained at one time, and then measured 8 times vertically, and 80 sets of distances can be obtained value.
例如a1b1矩阵单元的中心点距离为d1，a2b2矩阵单元的中心点距离为d2，以此类推a80b80矩阵单元的中心点距离为d80。那么获得的80个数值就非常容易的读取到距离的最大值与最小值。那么获取平均值就是距离的最大值加最小值再除以2。中间值矩阵单元的像素不变为102*102，其他矩阵单元的像素值根据前面的公式就能获取相对应的变化。总的原则就是近大远小，距离越近的矩阵单元像素值越大，距离越远的矩阵单元像素值越小。然后通过网格平滑技术，就得到了在原有1024*768像素限定下的投影到不规则墙面获取视角所取的规则影像的目的。For example, the center point distance of a1b1 matrix unit is d1, the center point distance of a2b2 matrix unit is d2, and so on, the center point distance of a80b80 matrix unit is d80. Then the obtained 80 values are very easy to read the maximum and minimum values of the distance. Then obtaining the average value is the maximum value of the distance plus the minimum value and then divided by 2. The pixels of the intermediate value matrix unit remain unchanged to 102*102, and the pixel values of other matrix units can obtain corresponding changes according to the previous formula. The general principle is that the closer the distance, the larger the pixel value of the matrix unit, and the smaller the pixel value of the matrix unit farther away. Then, through grid smoothing technology, the purpose of projecting regular images on irregular walls to obtain perspectives under the original 1024*768 pixel limit is obtained.
如图10～14所示，切换装置600包括，设置在投影仪底部601的空心圆柱体的切换上管602、活动连接在切换上管602中的切换支脚603和切换传动组件610，切换支脚603的上端外侧设置有限位凸起603a，切换上管602的空心下端内侧设置有与限位凸起603a相配合的阻挡凸起602a，由此，限位凸起603a和阻挡凸起602a的配合，对伸缩的最高位置进行了限制。切换支脚603设置在切换上管602中，且能够上下伸缩，其伸缩范围是投影仪底部601和切换上管602的底部(即阻挡凸起602a)范围内。As shown in Figures 10-14, the switching device 600 includes a hollow cylindrical switching upper tube 602 arranged at the bottom 601 of the projector, a switching leg 603 movably connected in the switching upper tube 602 and a switching transmission assembly 610, the switching leg 603 A limiting protrusion 603a is provided on the outer side of the upper end of the top tube 602, and a blocking protrusion 602a matched with the limiting protrusion 603a is provided on the inner side of the hollow lower end of the switching upper tube 602. Thus, the cooperation of the limiting protrusion 603a and the blocking protrusion 602a, The highest position of telescoping is limited. The switching leg 603 is arranged in the switching upper tube 602 and can be stretched up and down, and its telescoping range is within the scope of the bottom of the projector 601 and the bottom of the switching upper tube 602 (ie, the blocking protrusion 602a).
切换传动组件610包括高位齿管620、切换齿管630、按压齿管640和高位弹簧650。高位齿管620为下部内径小于上部内径的空心圆柱体，高位齿管620下部内径较小突出的部分顶部沿圆周设置若干个尖端向上的“M”形凸起高位齿621，“M”形的高位齿621四条边中不相邻的两条竖直向上，另外两条边与竖直的两边形成的夹角为60°～80°，相邻的高位齿621之间设置有高位齿管620下部部分内表面向上延伸的上下通透的切换长槽624。The switching transmission assembly 610 includes a high position tooth tube 620 , a switching tooth tube 630 , a pressing tooth tube 640 and a high position spring 650 . The high-position tooth tube 620 is a hollow cylinder whose lower inner diameter is smaller than the upper inner diameter. The top of the lower inner diameter of the high-position tooth tube 620 is smaller and protruding. Several "M"-shaped raised high-position teeth 621 are arranged along the circumference. The "M"-shaped Among the four sides of the high-position teeth 621, two non-adjacent two sides are vertically upward, and the angle formed between the other two sides and the two vertical sides is 60°-80°, and high-position tooth tubes 620 are arranged between adjacent high-position teeth 621 The upper and lower transparent switching slots 624 extend upwards on the inner surface of the lower part.
具体的，如图6、7所示，高位齿管620为区分为上部空间620a和下部空间620b的空心圆柱体，其中，上部空间620a的内径大于下部空间620b的内径，如此，内径不同的上部空间620a和下部空间620b的连接处，即形成了接触部，所述接触部沿圆周设置若干个尖端向上的“M”形凸起高位齿621，“M”形的高位齿621四条边中不相邻的两条竖直向上，为直边622，另外两条边与竖直的两边形成的夹角为60°～80°，为斜边623，下部空间620b的内表面设置有上下通透的切换长槽624，相邻的切换长槽624之间间隔至少一个“M”形的高位齿621。当然，在图5和图11所示的实施方式中，仅仅示出了间隔一个“M”形的高位齿621的状态。Specifically, as shown in Figures 6 and 7, the high-position toothed tube 620 is a hollow cylinder divided into an upper space 620a and a lower space 620b, wherein the inner diameter of the upper space 620a is greater than the inner diameter of the lower space 620b, so that the upper space with different inner diameters The junction of the space 620a and the lower space 620b forms a contact portion, and the contact portion is provided with several “M”-shaped protruding high-position teeth 621 along the circumference. Among the four sides of the “M”-shaped high-position teeth 621 The adjacent two vertical upwards are straight sides 622, and the angle between the other two sides and the two vertical sides is 60°-80°, which is hypotenuse 623. The inner surface of the lower space 620b is provided with up and down transparent There is at least one "M" shaped high-position tooth 621 between adjacent switching long slots 624 . Of course, in the embodiments shown in FIG. 5 and FIG. 11 , only the state of the high-position teeth 621 separated by an "M" shape is shown.
如图8所示，切换齿管630为空心圆柱体，切换齿管630外表面设置有与切换长槽624相配合的导向条632，切换齿管630下端沿圆周设置若干个首尾相连“V”形凸起状的切换齿631，具体来说，一个切换齿631包括两个相邻相交的折面631a。导向条632的顶面是导向斜面634，该导向斜面634的特殊之处在于：一个导向斜面634包括或者可以说，构成了切换齿631“V”形凹槽中的一个折面631a，所以导向条632顶端是一个导向斜面634，且两个相邻的导向条632之间至少间隔一个切换齿631。As shown in Figure 8, the switching tooth tube 630 is a hollow cylinder, and the outer surface of the switching tooth tube 630 is provided with a guide bar 632 that matches the switching slot 624. The lower end of the switching tooth tube 630 is provided with several "V" connected end to end along the circumference. The protruding switching tooth 631, specifically, one switching tooth 631 includes two adjacent intersecting folding surfaces 631a. The top surface of the guide bar 632 is a guide bevel 634, and the special feature of this guide bevel 634 is: a guide bevel 634 includes or can be said to constitute a folding surface 631a in the "V" groove of the switching tooth 631, so the guide The top of the strips 632 is a guiding slope 634 , and at least one switching tooth 631 is spaced between two adjacent guiding strips 632 .
如图9所示，圆柱状的按压齿管640上设置有凸出其表面的驱动条641，驱动条641下端为“V”形尖端的驱动齿642，驱动条641突出于圆柱状的按压齿管640的上端边缘，且也与高位齿管620的切换长槽624相配合，如此，驱动条641下端的驱动齿642与切换齿管630下端的切换齿631相活动配合，此处所述的“相活动配合”，具体指的是：“V”形尖端的驱动齿642与若干个首尾相连“V”形凸起状的切换齿631相配合，且能够相对运动。这里所说的“相配合”，参见图12，并非驱动齿642的“V”形尖端恰好“落在”或者“对应”切换齿631的“V”形凸起的上部的缺口中，而是“对应”形成切换齿631的“V”形凸起的一个非最低点的折面631a上，如此，当导向条632“脱离”切换长槽624的限位继续向上运动时，驱动齿642会给予导向条632一个能够迫使其发生相对旋转运动的力。As shown in Figure 9, the cylindrical pressing tooth tube 640 is provided with a driving bar 641 protruding from its surface, the lower end of the driving bar 641 is a driving tooth 642 with a "V"-shaped tip, and the driving bar 641 protrudes from the cylindrical pressing tooth The edge of the upper end of the tube 640 is also matched with the switching long groove 624 of the high-position toothed tube 620, so that the driving tooth 642 at the lower end of the driving bar 641 is movably matched with the switching tooth 631 at the lower end of the switching toothed tube 630. "Movely matching" specifically refers to: the drive tooth 642 with a "V"-shaped tip cooperates with several "V"-shaped convex switching teeth 631 connected end to end, and can move relative to each other. The "cooperating" mentioned here, referring to Fig. 12, is not that the "V" shaped tip of the driving tooth 642 just "falls" or "corresponds" in the upper notch of the "V" shaped projection of the switching tooth 631, but "Corresponding" to form the "V" shape of the switching tooth 631 on a non-lowest point of the folding surface 631a, so that when the guide bar 632 "breaks away" from the limit of the switching slot 624 and continues to move upward, the driving tooth 642 will Give the guide bar 632 a force that can force it to undergo relative rotational movement.
如图12～14所示，高位齿管620固定在切换装置600的切换上管602内的投影仪底部601上，按压齿管640下端固定连接在切换支脚603内的底端，切换齿管630通过一个贯穿部件660同轴活动连接在按压齿管640内部底端，切换齿管630下端与按压齿管640上端的距离活动连接在1～2mm，且切换齿管630能绕该贯穿部件660自由转动，高位齿管620通过导向条632与切换长槽624活动配合，按压齿管640通过驱动条641与切换长槽624活动配合，切换齿管630和按压齿管640能够在高位齿管620的内部空腔中上下活动，高位弹簧650设置在切换支脚603和切换上管602之间。As shown in Figures 12-14, the high-position tooth tube 620 is fixed on the bottom 601 of the projector in the switching upper tube 602 of the switching device 600, and the lower end of the pressing tooth tube 640 is fixedly connected to the bottom end of the switching leg 603, and the switching tooth tube 630 A penetrating part 660 is coaxially and movably connected to the inner bottom of the pressing tooth tube 640, the distance between the lower end of the switching tooth tube 630 and the upper end of the pressing tooth tube 640 is movably connected at 1-2 mm, and the switching tooth tube 630 can freely go around the penetrating part 660 Rotate, the high-position toothed tube 620 movably cooperates with the switching long slot 624 through the guide bar 632, and the pressing toothed tube 640 movably cooperates with the switching long slot 624 through the driving bar 641. The inner cavity moves up and down, and the high position spring 650 is arranged between the switching leg 603 and the switching upper tube 602 .
如图10、12、13、14所示，按压投影仪，高位齿管620下降，当切换齿管630的切换齿631高于高位齿管620的高位齿621时，切换齿管630的导向条632整体都从切换长槽624中滑出，按压齿管640的驱动齿642的尖端挤压切换齿管630的切换齿631的一个导向斜面634，同时挤压外侧导向条632顶端的导向斜面634，切换齿管630受到导向斜面634方向的挤压力旋转一定角度，导向条632和切换长槽624在竖直方向上不在是同一位置，松开投影仪，受高位弹簧650的恢复弹力，投影仪带着高位齿管620上升，导向条632顶端顶向高位齿621的一个斜边623，最终导向条632顶端会顶到高位齿621“M”形状的中间凹槽内，高位齿管620不在上升，此时整个设备处于低位置状态。As shown in Figures 10, 12, 13, and 14, press the projector, and the high-position tooth tube 620 will descend. 632 as a whole slides out from the switching long groove 624, and the tip of the driving tooth 642 of the pressing tooth tube 640 squeezes a guide slope 634 of the switching tooth 631 of the switching tooth tube 630, and simultaneously squeezes the guide slope 634 at the top of the outer guide bar 632 , the switching gear tube 630 is rotated at a certain angle by the extrusion force in the direction of the guide slope 634, the guide bar 632 and the switching long slot 624 are not in the same position in the vertical direction, the projector is released, and the projection is affected by the restoring elastic force of the high spring 650. The instrument rises with the high-position tooth tube 620, and the top of the guide bar 632 pushes against a hypotenuse 623 of the high-position tooth 621. Finally, the top of the guide bar 632 will push against the middle groove of the "M" shape of the high-position tooth 621, and the high-position tooth tube 620 is not in place. Rising, at this time the entire device is in a low position state.
如图11～14所示，再次按压投影仪，高位齿管620下降，当切换齿管630的切换齿631高于于高位齿管620的高位齿621时，切换齿管630的导向条632整体从高位齿621中“脱出”，按压齿管640的驱动齿642的尖端挤压切换齿管630的切换齿631的一个导向斜面634，切换齿管630受到导向斜面634方向的挤压力旋转一定角度，松开投影仪，受高位弹簧650的恢复弹力，高位齿管620上升，导向条632顶端顶向高位齿621的另一个斜边623，最终导向条632底端会滑进与该斜边623相连的切换长槽624中，高位齿管620继续上升到切换上管602的上部，此时整个设备处于高位置状态。As shown in Figures 11-14, press the projector again, and the high-position tooth tube 620 will descend. When the switching tooth 631 of the switching tooth tube 630 is higher than the high-position tooth 621 of the high-position tooth tube 620, the guide bar 632 of the switching tooth tube 630 will "Get out" from the high-position tooth 621, press the tip of the driving tooth 642 of the tooth tube 640 to squeeze a guiding slope 634 of the switching tooth 631 of the switching tooth tube 630, and the switching tooth tube 630 is rotated by the pressing force in the direction of the guiding slope 634. When the projector is released, the high-position tooth tube 620 rises due to the recovery force of the high-position spring 650, and the top of the guide strip 632 pushes against the other hypotenuse 623 of the high-position tooth 621, and finally the bottom end of the guide strip 632 will slide into the hypotenuse In the switching slot 624 connected with 623, the high-position gear tube 620 continues to rise to the top of the switching upper tube 602, and now the whole device is in a high position state.
由此可见，本发明提供的投影仪，其使用者可以根据投影仪的设置状况很容易地变更前端摄影的角度，而，识别单元和处理单元的独特设置使得成像不再仅仅受制于平整的成像面，提高了整体的操作性。It can be seen that the user of the projector provided by the present invention can easily change the angle of the front-end photography according to the setting conditions of the projector, and the unique setting of the identification unit and the processing unit makes the imaging no longer only limited by the flat imaging surface, improving the overall operability.
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention shall be covered by the claims of the present invention.
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| CN111669558B (en) * | 2020-07-09 | 2021-11-09 | 深圳市灿晶电子科技有限公司 | Novel projection terminal and using method thereof |
| CN117553709B (en) * | 2023-12-28 | 2024-04-19 | 深圳新智联软件有限公司 | A method and device for calculating the yaw angle and pitch angle of a projector |
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| CN1702366A (en) * | 2004-05-28 | 2005-11-30 | 株式会社利富高 | Leg device |
| JP2008131099A (en) * | 2006-11-16 | 2008-06-05 | Ricoh Co Ltd | Image projection apparatus and image projection method |
| CN102243425A (en) * | 2010-05-13 | 2011-11-16 | 三洋电机株式会社 | Projection display device |
| CN104717486A (en) * | 2015-03-26 | 2015-06-17 | 金陵科技学院 | DLP Link 3D projector based on DMD chip |
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| JP2001272513A (en) * | 2000-03-24 | 2001-10-05 | Seiko Epson Corp | Optical component and projector using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1702366A (en) * | 2004-05-28 | 2005-11-30 | 株式会社利富高 | Leg device |
| JP2008131099A (en) * | 2006-11-16 | 2008-06-05 | Ricoh Co Ltd | Image projection apparatus and image projection method |
| CN102243425A (en) * | 2010-05-13 | 2011-11-16 | 三洋电机株式会社 | Projection display device |
| CN104717486A (en) * | 2015-03-26 | 2015-06-17 | 金陵科技学院 | DLP Link 3D projector based on DMD chip |
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