CN209446965U - An ultra-short-distance laser projection system with Fresnel glass lens - Google Patents
An ultra-short-distance laser projection system with Fresnel glass lens Download PDFInfo
- Publication number
- CN209446965U CN209446965U CN201920253502.3U CN201920253502U CN209446965U CN 209446965 U CN209446965 U CN 209446965U CN 201920253502 U CN201920253502 U CN 201920253502U CN 209446965 U CN209446965 U CN 209446965U
- Authority
- CN
- China
- Prior art keywords
- layer
- fresnel
- convex ring
- laser projector
- projection system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
技术领域technical field
本实用新型涉及激光投影系统,具体公开了一种菲涅尔玻璃透镜的超短距离激光投影系统。The utility model relates to a laser projection system, and in particular discloses an ultra-short-distance laser projection system of a Fresnel glass lens.
背景技术Background technique
投影系统即将物体照明后成像于投影屏上的光学系统,该系统基于动作跟踪技术,适合任何投影机、液晶屏、LED大屏幕、等离子、数字视屏墙等,是常见的实现大画面、高分辨率显示的主要手段之一,广泛用于会议、监控、展示、仿真和娱乐等领域。The projection system is an optical system that illuminates objects and images them on the projection screen. This system is based on motion tracking technology and is suitable for any projector, LCD screen, LED large screen, plasma, digital video wall, etc. It is a common way to achieve large screen and high resolution. It is one of the main means of rate display, widely used in conferences, monitoring, display, simulation and entertainment and other fields.
一般的投影系统是通过投影机直接投影到白屏上进行图像显示,图像的放大倍率根据视场角调节投影距离即可进行控制。为提高放大倍率同时确保图像的清晰度,通常设置投影机距离白屏较远的距离,整体投影结构的占用空间大,且投影的光路容易受阻挡,最终会严重影响投影效果。A general projection system uses a projector to directly project images onto a white screen for image display, and the magnification of the image can be controlled by adjusting the projection distance according to the field of view. In order to increase the magnification and ensure the clarity of the image, the projector is usually set farther away from the white screen. The overall projection structure takes up a lot of space, and the projection light path is easily blocked, which will seriously affect the projection effect.
实用新型内容Utility model content
基于此,有必要针对现有技术问题,提供一种菲涅尔玻璃透镜的超短距离激光投影系统,能够有效缩短投影距离,同时投影光路不易被阻挡。Based on this, it is necessary to provide an ultra-short-distance laser projection system with a Fresnel glass lens, which can effectively shorten the projection distance, and at the same time, the projection light path is not easily blocked.
为解决现有技术问题,本实用新型公开一种菲涅尔玻璃透镜的超短距离激光投影系统,包括玻璃基板,玻璃基板下方的一侧设有激光投影机;玻璃基板靠近激光投影机的一侧设有第一反射层,第一反射层远离玻璃基板的一侧设有塑形油墨基层,塑形油墨基层远离第一反射层的一侧一体成型有若干同心设置的菲涅尔凸环,菲涅尔凸环的圆心位于塑形油墨基层底部的中心处,菲涅尔凸环靠近激光投影机的一侧设有第二反射层,菲涅尔凸环远离激光投影机的一侧设有吸光层;菲涅尔凸环远离塑形油墨基层的一侧设有扩散膜层,扩散膜层远离菲涅尔凸环的一侧设有防刮层。In order to solve the problems in the prior art, the utility model discloses an ultra-short-distance laser projection system of a Fresnel glass lens, which includes a glass substrate, a laser projector is arranged on the side below the glass substrate; a side of the glass substrate close to the laser projector A first reflective layer is provided on the side, and the side of the first reflective layer away from the glass substrate is provided with a shaping ink base layer, and a number of concentric Fresnel convex rings are integrally formed on the side of the shaping ink base layer away from the first reflective layer, The center of the Fresnel convex ring is located at the center of the bottom of the shaping ink base layer, the side of the Fresnel convex ring close to the laser projector is provided with a second reflective layer, and the side of the Fresnel convex ring away from the laser projector is provided with a reflective layer. Light-absorbing layer; the Fresnel convex ring is provided with a diffusion film layer on the side away from the shaping ink base layer, and the diffusion film layer is provided with an anti-scratch layer on the side away from the Fresnel convex ring.
进一步的,第一反射层和第二反射层均为镀银反射层。Further, both the first reflective layer and the second reflective layer are silver-plated reflective layers.
进一步的,防刮层为PC层或PET层。Further, the anti-scratch layer is a PC layer or a PET layer.
进一步的,塑形油墨基层和扩散膜层之间还设有光学胶层,光学胶层与菲涅尔凸环形成完整的平面层结构。Further, an optical adhesive layer is provided between the shaping ink base layer and the diffusion film layer, and the optical adhesive layer and the Fresnel convex ring form a complete planar layer structure.
进一步的,光学胶层为OCA光学胶层。Further, the optical adhesive layer is an OCA optical adhesive layer.
进一步的,第一反射层的厚度为2~4μm,塑形油墨基层的厚度为15~18μm,菲涅尔凸环的厚度为12~15μm,扩散膜层的厚度为130~160μm,防刮层的厚度为80~110μm,光学胶层的厚度为12~15μm。Further, the thickness of the first reflective layer is 2-4 μm, the thickness of the shaping ink base layer is 15-18 μm, the thickness of the Fresnel protruding ring is 12-15 μm, the thickness of the diffusion film layer is 130-160 μm, and the anti-scratch layer The thickness of the optical glue layer is 80-110 μm, and the thickness of the optical adhesive layer is 12-15 μm.
本实用新型的有益效果为:本实用新型公开一种菲涅尔玻璃透镜的超短距离激光投影系统,设置菲涅尔玻璃透镜结构,能够有效对激光投影机的投影图像进行放大,从而有效缩短投影距离,整体结构的占用空间小,能够符合多种空间的使用,使用门槛低,此外,菲涅尔玻璃透镜结构设置为半圆状的结构,激光投影机设置在圆心下方,投影光路不易被阻挡,能够确保投影图像持续不间断,同时设置吸光结构能够有效避免环境光影响投影效果。The beneficial effects of the utility model are as follows: the utility model discloses a Fresnel glass lens ultra-short-distance laser projection system, which can effectively enlarge the projected image of the laser projector by setting the Fresnel glass lens structure, thereby effectively shortening the distance. Projection distance, the overall structure occupies a small space, can meet the use of various spaces, and the threshold for use is low. In addition, the Fresnel glass lens structure is set in a semicircular structure, and the laser projector is set below the center of the circle, so the projection light path is not easy to be blocked. , which can ensure that the projected image is continuous and uninterrupted, and at the same time, setting a light-absorbing structure can effectively prevent ambient light from affecting the projection effect.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2为本实用新型整体结构的光路示意图。Fig. 2 is a schematic diagram of the optical path of the overall structure of the utility model.
图3为本实用新型中激光投影机和菲涅尔凸环之间的光路示意图。Fig. 3 is a schematic diagram of the optical path between the laser projector and the Fresnel convex ring in the present invention.
附图标记为:玻璃基板10、第一反射层11、塑形油墨基层12、菲涅尔凸环13、第二反射层131、吸光层132、扩散膜层14、防刮层15、光学胶层16、激光投影机20。Reference numerals are: glass substrate 10, first reflection layer 11, shaping ink base layer 12, Fresnel convex ring 13, second reflection layer 131, light absorption layer 132, diffusion film layer 14, anti-scratch layer 15, optical glue Layer 16, laser projector 20.
具体实施方式Detailed ways
为能进一步了解本实用新型的特征、技术手段以及所达到的具体目的、功能,下面结合附图与具体实施方式对本实用新型作进一步详细描述。In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
参考图1至图3。Refer to Figures 1 to 3.
本实用新型实施例公开一种菲涅尔玻璃透镜的超短距离激光投影系统,包括玻璃基板10,玻璃基板10下方的一侧设有激光投影机20,优选地,激光投影机20为超短距激光投影机,激光投影机20的发射口斜向上正对玻璃基板10的底部中心;玻璃基板10靠近激光投影机20的一侧设有第一反射层11,第一反射层11远离玻璃基板10的一侧设有塑形油墨基层12,塑形油墨基层12远离第一反射层11的一侧一体成型有若干同心设置的菲涅尔凸环13,优选地,塑形油墨基层12为UV油墨层,在第一反射层11的表面上涂覆UV油墨,在UV油墨半固化的时候通过滚轴压印出菲涅尔纹路,从而形成菲涅尔凸环13和塑形油墨基层12,菲涅尔凸环13的圆心位于塑形油墨基层12底部的中心处,即菲涅尔凸环13的圆心位于塑形油墨基层12远离第一反射层11一面的底边中心处,所有的菲涅尔凸环13均不是完整的圆环结构,最大的菲涅尔凸环13为半圆环结构,激光投影机20的光线从菲涅尔凸环13的圆心下方斜向上照射到各个第二反射层131上,从而获得能够水平观看的图像显示效果,菲涅尔凸环13靠近激光投影机20的一侧设有第二反射层131,菲涅尔凸环13远离激光投影机20的一侧设有吸光层132,即每个菲涅尔凸环13的内侧壁均设有第二反射层131,每个菲涅尔凸环13的外壁均设有吸光层132,优选地,吸光层132为能够吸收环境光的黑色吸光材料制成的层结构;菲涅尔凸环13远离塑形油墨基层12的一侧设有扩散膜层14,扩散膜层14远离菲涅尔凸环13的一侧设有防刮层15,激光投影机20位于菲涅尔凸环13远离塑形油墨基层12一侧的下方。The embodiment of the utility model discloses a Fresnel glass lens ultra-short-distance laser projection system, which includes a glass substrate 10, and a laser projector 20 is provided on the side below the glass substrate 10. Preferably, the laser projector 20 is an ultra-short From the laser projector, the launch port of the laser projector 20 is obliquely facing the bottom center of the glass substrate 10; the side of the glass substrate 10 close to the laser projector 20 is provided with a first reflective layer 11, and the first reflective layer 11 is far away from the glass substrate. One side of 10 is provided with a plastic ink base layer 12, and the side of the plastic ink base layer 12 away from the first reflective layer 11 is integrally formed with several concentrically arranged Fresnel convex rings 13, preferably, the plastic ink base layer 12 is UV The ink layer is coated with UV ink on the surface of the first reflective layer 11, and the Fresnel pattern is embossed by the roller when the UV ink is semi-cured, thereby forming the Fresnel convex ring 13 and the shaping ink base layer 12, The center of Fresnel convex ring 13 is located at the center of the bottom of the shaping ink base layer 12, that is, the center of circle of the Fresnel convex ring 13 is located at the center of the bottom edge of the molding ink base layer 12 away from the first reflective layer 11, and all the phenanthrene The convex rings 13 are not complete ring structures, and the largest Fresnel convex ring 13 is a semi-circular structure, and the light of the laser projector 20 is irradiated obliquely upwards from the center of the Fresnel convex ring 13 to each second ring. On the reflective layer 131, so as to obtain the image display effect that can be viewed horizontally, the side of the Fresnel convex ring 13 close to the laser projector 20 is provided with a second reflective layer 131, and the side of the Fresnel convex ring 13 away from the laser projector 20 The side is provided with a light-absorbing layer 132, that is, the inner wall of each Fresnel convex ring 13 is provided with a second reflective layer 131, and the outer wall of each Fresnel convex ring 13 is provided with a light-absorbing layer 132, preferably, the light-absorbing layer 132 is the layer structure that the black light-absorbing material that can absorb ambient light is made; One side is provided with an anti-scratch layer 15, and the laser projector 20 is located below the side of the Fresnel convex ring 13 away from the shaping ink base layer 12.
用户从防刮层15的一侧向玻璃基板10的一侧观看,激光投影机20从下方斜向上发射出的光线照射到第二反射层131后反射到人眼,用户观看整个投影板面能够获得完整清晰的投影图像,投影图像清晰不变形,投影系统所占空间小,能够有效避免人员走动而阻挡投影光路的问题,此外,吸光层132能够有效吸收环境光,避免环境光在菲涅尔凸环13与投影的激光冲突而影响成像效果,扩散膜层14能够有效提高投影面板最终的成像效果,可有效确保图像不存在圆环、断层等缺陷,防刮层15能够有效保护投影面板的结构。The user watches from the side of the anti-scratch layer 15 to the side of the glass substrate 10, and the light emitted from the laser projector 20 obliquely upwards irradiates the second reflective layer 131 and is reflected to the human eyes. Obtain a complete and clear projection image, the projection image is clear and not deformed, the projection system occupies a small space, and can effectively avoid the problem of blocking the projection light path due to personnel walking. In addition, the light-absorbing layer 132 can effectively absorb ambient light and prevent ambient light from being in the Fresnel The convex ring 13 collides with the projected laser and affects the imaging effect. The diffusion film layer 14 can effectively improve the final imaging effect of the projection panel, and can effectively ensure that the image does not have defects such as rings and faults. The anti-scratch layer 15 can effectively protect the projection panel. structure.
本实用新型设置菲涅尔玻璃透镜结构,能够有效对激光投影机20的投影图像进行放大,从而有效缩短投影距离,整体结构的占用空间小,能够符合多种空间的使用,使用门槛低,此外,菲涅尔玻璃透镜结构设置为半圆状的结构,激光投影机设置在圆心下方,投影光路不易被阻挡,能够确保投影图像持续不间断,同时设置吸光结构能够有效避免环境光影响投影效果。The utility model is equipped with a Fresnel glass lens structure, which can effectively enlarge the projected image of the laser projector 20, thereby effectively shortening the projection distance, the overall structure occupies a small space, can meet the use of various spaces, and has a low threshold for use. , The Fresnel glass lens structure is set in a semicircular structure, and the laser projector is set under the center of the circle, so that the projection light path is not easily blocked, which can ensure continuous and uninterrupted projection images, and the light-absorbing structure can effectively prevent ambient light from affecting the projection effect.
在本实施例中,第一反射层11和第二反射层131均为镀银反射层,银镀反射层具有优良的光反射性能,能够提高图像的保真性。In this embodiment, both the first reflective layer 11 and the second reflective layer 131 are silver-plated reflective layers, and the silver-plated reflective layer has excellent light reflection performance and can improve image fidelity.
在本实施例中,防刮层15为PC层或PET层,PC是以聚碳酸酯为主要成分加工而成的塑料,具有高透明度、抗冲击、质轻和抗老化等优点,PET是指聚对苯二甲酸类塑料,具有抗疲劳、耐摩擦等优点。In this embodiment, the anti-scratch layer 15 is a PC layer or a PET layer. PC is a plastic processed from polycarbonate, which has the advantages of high transparency, impact resistance, light weight and anti-aging. PET refers to Polyterephthalic acid plastics have the advantages of anti-fatigue and friction resistance.
在本实施例中,塑形油墨基层12和扩散膜层14之间还设有光学胶层16,光学胶层16与菲涅尔凸环13形成完整的平面层结构,即光学胶层16设置在相邻的菲涅尔凸环13之间,设置光学胶层16填充塑形油墨基层12和扩散膜层14之间的空腔,能够有效提高整体结构的稳定性。In this embodiment, an optical adhesive layer 16 is also provided between the plastic ink base layer 12 and the diffusion film layer 14, and the optical adhesive layer 16 and the Fresnel convex ring 13 form a complete planar layer structure, that is, the optical adhesive layer 16 is set Between adjacent Fresnel protruding rings 13, an optical adhesive layer 16 is arranged to fill the cavity between the plastic ink base layer 12 and the diffusion film layer 14, which can effectively improve the stability of the overall structure.
基于上述实施例,光学胶层16为OCA光学胶层,OCA光学胶具有无色透明、光透过率在90%以上、结胶强度良好、和固化收缩小的特点。Based on the above-mentioned embodiment, the optical adhesive layer 16 is an OCA optical adhesive layer, and the OCA optical adhesive has the characteristics of colorless and transparent, with a light transmittance above 90%, good bonding strength, and small curing shrinkage.
基于上述实施例,第一反射层11的厚度为2~4μm,塑形油墨基层12的厚度为15~18μm,菲涅尔凸环13的厚度为12~15μm,扩散膜层14的厚度为130~160μm,防刮层15的厚度为80~110μm,光学胶层16的厚度为12~15μm,设置投影系统的各个层结构具有合理的厚度,能够有效降低整体结构的厚度,同时能够确保良好的图像显示性能。Based on the foregoing embodiment, the thickness of the first reflective layer 11 is 2-4 μm, the thickness of the shaping ink base layer 12 is 15-18 μm, the thickness of the Fresnel convex ring 13 is 12-15 μm, and the thickness of the diffusion film layer 14 is 130 μm. ~160 μm, the thickness of the anti-scratch layer 15 is 80-110 μm, and the thickness of the optical adhesive layer 16 is 12-15 μm. The thickness of each layer structure of the projection system is reasonable, which can effectively reduce the thickness of the overall structure and ensure good Image shows performance.
以上所述实施例仅表达了本实用新型的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本实用新型构思的前提下,还可以做出若干变形和改进,这些都属于本实用新型的保护范围。因此,本实用新型专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920253502.3U CN209446965U (en) | 2019-02-27 | 2019-02-27 | An ultra-short-distance laser projection system with Fresnel glass lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201920253502.3U CN209446965U (en) | 2019-02-27 | 2019-02-27 | An ultra-short-distance laser projection system with Fresnel glass lens |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209446965U true CN209446965U (en) | 2019-09-27 |
Family
ID=68033590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201920253502.3U Expired - Fee Related CN209446965U (en) | 2019-02-27 | 2019-02-27 | An ultra-short-distance laser projection system with Fresnel glass lens |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209446965U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112255878A (en) * | 2020-11-10 | 2021-01-22 | 成都菲斯特科技有限公司 | Catadioptric lateral projection screen and projection system |
WO2024082686A1 (en) * | 2022-10-17 | 2024-04-25 | 青岛海信激光显示股份有限公司 | Projection screen and manufacturing method therefor, and projection system |
-
2019
- 2019-02-27 CN CN201920253502.3U patent/CN209446965U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112255878A (en) * | 2020-11-10 | 2021-01-22 | 成都菲斯特科技有限公司 | Catadioptric lateral projection screen and projection system |
WO2024082686A1 (en) * | 2022-10-17 | 2024-04-25 | 青岛海信激光显示股份有限公司 | Projection screen and manufacturing method therefor, and projection system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109725484B (en) | Off-axis short-focus orthographic projection optical screen and projection display system | |
CN110412825B (en) | Projection screen and projection system | |
CN106338878A (en) | Short-focus positive-projection display screen | |
JP2013152288A (en) | Reflection screen and image display system | |
JP2012252112A (en) | Reflection screen and method for manufacturing the same | |
JP2015060193A (en) | Reflection type screen, and video display system | |
CN209446965U (en) | An ultra-short-distance laser projection system with Fresnel glass lens | |
CN106648254A (en) | Anti-dazzling touch screen and preparation method thereof | |
JP2014199375A (en) | Reflective screen and image display system | |
CN208999756U (en) | The anti-light curtain of short focus front projection | |
JP2013152305A (en) | Method for manufacturing reflection screen, reflection screen, and image display system | |
JP2014071210A (en) | Reflective screen and video image display system | |
JP2015068943A (en) | Reflection screen, manufacturing method of the same, and video display system | |
JP2012252049A (en) | Reflection screen | |
CN109426061A (en) | A kind of short focus orthographic projection shows screen and preparation method thereof | |
US20180036992A1 (en) | Screen protector and manufacture method thereof | |
JP5998769B2 (en) | Reflective screen, video display system | |
CN216772184U (en) | Multifunctional projection screen | |
JP2016151649A (en) | Reflection screen and video display system | |
KR20070110173A (en) | Projection screen | |
JP2006208610A (en) | Light-transmissive substrate and transmission type optical member | |
JP2013156373A (en) | Reflection screen manufacturing method | |
CN206544356U (en) | black and white shading film | |
CN111427167B (en) | 3D optical structure, preparation method thereof and electronic equipment | |
CN220526167U (en) | A multi-angle projection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 |