CN116183170A - Optical detection system - Google Patents
Optical detection system Download PDFInfo
- Publication number
- CN116183170A CN116183170A CN202210387961.7A CN202210387961A CN116183170A CN 116183170 A CN116183170 A CN 116183170A CN 202210387961 A CN202210387961 A CN 202210387961A CN 116183170 A CN116183170 A CN 116183170A
- Authority
- CN
- China
- Prior art keywords
- lens
- optical
- module
- optical device
- detection 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0292—Testing optical properties of objectives by measuring the optical modulation transfer function
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Lens Barrels (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Glass Compositions (AREA)
- Optical Communication System (AREA)
Abstract
本发明公开了一种光学检测系统,该光学检测系统的第一载台及第二载台用以载负第一光学装置及第二光学装置。位移机构连接于第一载台及第二载台,用以使第一载台及第二载台产生位移。第一工作模块用以对第一光学装置进行一第一检测功能。第二工作模块用以对第二光学装置进行一第二检测功能,且第二检测功能及第一检测功能的检测项目相异。而且,位移机构使第一载台及第二载台产生位移后的一工作状态下,第一载台的位置对应于第一工作模块的位置,且第二载台的位置对应于第二工作模块的位置。本发明能够同时在不同测试工作模块,作不同测试,以及对镜头的镜片或镜群的MTF偏心进行调整及/或测试。
The invention discloses an optical detection system. The first stage and the second stage of the optical detection system are used to carry the first optical device and the second optical device. The displacement mechanism is connected to the first platform and the second platform, and is used to make the first platform and the second platform generate displacement. The first working module is used for performing a first detection function on the first optical device. The second working module is used for performing a second detection function on the second optical device, and the detection items of the second detection function and the first detection function are different. Moreover, in a working state after the displacement mechanism displaces the first stage and the second stage, the position of the first stage corresponds to the position of the first working module, and the position of the second stage corresponds to the position of the second working module. The location of the module. The present invention can carry out different tests in different test working modules at the same time, and adjust and/or test the MTF eccentricity of the lenses or mirror groups of the lens.
Description
技术领域technical field
本发明关于一种光学检测系统,尤其关于一种能够对镜头进行多种功能光学检测及调整的光学检测系统。The present invention relates to an optical detection system, in particular to an optical detection system capable of carrying out optical detection and adjustment of multiple functions on a lens.
背景技术Background technique
现在,镜头已大量地被应用于各种移动装置,例如手机、移动装置或数字相机等。在制造过程中会因工艺差异而改变镜头品质,因此,镜头在出厂前皆需经过检测,以确定制造完成的镜头符合原设计的规范。镜头检测装置举例而言,至少包含以下种类,有限距离的逆投影光学镜头检测、无穷远距离逆投影光学镜头检测、无穷远距离正投影光学镜头检测、及有限距离的正投影光学镜头检测。Now, lenses have been widely used in various mobile devices, such as mobile phones, mobile devices, or digital cameras. During the manufacturing process, the quality of the lens will be changed due to process differences. Therefore, the lens must be tested before leaving the factory to ensure that the finished lens meets the original design specifications. For example, the lens inspection device at least includes the following types: finite distance back projection optical lens inspection, infinite distance back projection optical lens inspection, infinite distance front projection optical lens inspection, and finite distance front projection optical lens inspection.
现有的镜头检测装置,主要是以料盘载入多个待测镜头,并利用XY平移台移动料盘各穴或各待测镜头,再对该多个待测镜头作MTF等相关测试。然而,依据已知技术,仅能进行光学调制传递函数(modulation transfer function,MTF)测试,部分光学特性并无法在此架构完成且此架构主要以镜头成品测试为主。然而,有鉴于目前对镜头的品质要求越来越高,需要对镜头进行MTF检测之外的各种检测,因此传统的制式组装方式已无法满足生产良率。The existing lens inspection device mainly loads a plurality of lenses to be tested on a tray, and uses an XY translation stage to move each cavity of the tray or each lens to be tested, and then performs MTF and other related tests on the plurality of lenses to be tested. However, according to the known technology, only the optical modulation transfer function (MTF) test can be performed, and some optical characteristics cannot be completed in this framework, and this framework is mainly based on lens product testing. However, in view of the increasingly high quality requirements for lenses, various inspections other than MTF inspections are required for the lenses, so the traditional standard assembly method can no longer meet the production yield.
发明内容Contents of the invention
依据本发明一实施例,提出一种能够对镜头进行多种功能光学检测及/或调整的光学检测系统。一实施例中,该光学检测系统能够同时在不同测试工作模块,作不同测试,以及对镜头的镜片或镜群的MTF偏心进行调整及/或测试。According to an embodiment of the present invention, an optical inspection system capable of optically inspecting and/or adjusting various functions of a lens is proposed. In one embodiment, the optical detection system can simultaneously perform different tests in different test working modules, and adjust and/or test the MTF eccentricity of the lenses or mirror groups of the lens.
依据本发明一实施例,提出一种光学检测系统用以检测多个待测光学装置。该光学检测系统包含一第一载台及一第二载台、一位移机构、一第一工作模块及一第二工作模块。第一载台及第二载台用以载负该多个待测光学装置的一第一光学装置及第二光学装置。位移机构连接于该第一载台及该第二载台,用以使该第一载台及该第二载台产生位移。第一工作模块用以对该第一光学装置进行一第一检测功能。第二工作模块用以对该第二光学装置进行一第二检测功能,且该第二检测功能及该第一检测功能的检测项目相异。而且,该位移机构使该第一载台及该第二载台产生位移后的一工作状态下,该第一载台的位置对应于该第一工作模块的位置,且该第二载台的位置对应于该第二工作模块的位置。According to an embodiment of the present invention, an optical inspection system is provided for inspecting a plurality of optical devices to be inspected. The optical detection system includes a first carrier and a second carrier, a displacement mechanism, a first working module and a second working module. The first stage and the second stage are used to carry a first optical device and a second optical device of the plurality of optical devices to be tested. The displacement mechanism is connected to the first stage and the second stage, and is used for causing displacement of the first stage and the second stage. The first working module is used for performing a first detection function on the first optical device. The second working module is used for performing a second detection function on the second optical device, and the detection items of the second detection function and the first detection function are different. Moreover, in a working state after the displacement mechanism displaces the first stage and the second stage, the position of the first stage corresponds to the position of the first working module, and the position of the second stage The location corresponds to the location of the second working module.
一实施例中,该第一工作模块包含一入射视角设置结构、一光源、一标靶及至少一望远影像获取模块。光源用以产生一光线。标靶具有一测试图样,且设置成使该光线通过该标靶,并形成一光型。望远影像获取模块用以接收该光型,并依据该光型形成一测试影像,而且,该至少一望远影像获取模块设置于该入射视角设置结构,并以一入射角接收该光型。In one embodiment, the first working module includes an incident viewing angle setting structure, a light source, a target and at least one telescopic image acquisition module. The light source is used to generate a light. The target has a test pattern and is arranged so that the light passes through the target and forms a light pattern. The telescopic image acquisition module is used to receive the light type and form a test image according to the light type. Moreover, the at least one telephoto image acquisition module is arranged on the incident viewing angle setting structure and receives the light type at an incident angle.
一实施例中,该位移机构包含一旋转盘,且该旋转盘用以进行旋转,使该第一载台和该第二载台产生位移而旋转至不同旋转角度,并进入该工作状态。而且,该至少一望远影像获取模块的个数为多个,且该多个望远影像获取模块分别设于该入射视角设置结构的不同位置,并且能够在不同的入射角接收该光型。并且,该第一工作模块还包含一计算机,且该计算机依据该测试影像利用一软件演算进行计算,而求得该第一光学装置或该第二光学装置的光学性质。In one embodiment, the displacement mechanism includes a rotating disk, and the rotating disk is used to rotate, so that the first stage and the second stage are displaced to rotate to different rotation angles, and enter into the working state. Moreover, the number of the at least one telephoto image acquisition module is multiple, and the plurality of telephoto image acquisition modules are respectively arranged at different positions of the incident viewing angle setting structure, and can receive the light type at different incident angles. Moreover, the first working module further includes a computer, and the computer uses a software calculation to calculate the optical properties of the first optical device or the second optical device according to the test image.
一实施例中,该入射视角设置结构包含至少一弧形轨道。该至少一望远影像获取模块设于该至少一弧形轨道,借以能够沿着该至少一弧形轨道移动,而被置于该至少一弧形轨道的不同位置,借以获取不同视角的该测试影像。In one embodiment, the incident viewing angle setting structure includes at least one arc track. The at least one telephoto image acquisition module is arranged on the at least one arc-shaped track, so as to be able to move along the at least one arc-shaped track, and be placed in different positions of the at least one arc-shaped track, so as to acquire the test images of different viewing angles .
一实施例中,该第一光学装置为一第一镜头,该第二光学装置为一第二镜头。而且,该第一工作模块还包含一夹爪、一移动平台、一点胶模块及一紫外线光源。夹爪用以夹持该第一镜头。移动平台连接于该夹爪,用以移动该夹爪。点胶模块适于对该第一镜头点胶,而将一胶体涂布于该第一镜头。紫外线光源适于产生一紫外光,用以使该胶体固化。In one embodiment, the first optical device is a first lens, and the second optical device is a second lens. Moreover, the first working module also includes a gripper, a mobile platform, a glue dispensing module and an ultraviolet light source. The clamping claw is used for clamping the first lens. The moving platform is connected to the gripper for moving the gripper. The dispensing module is suitable for dispensing glue on the first lens, and coating a glue on the first lens. The ultraviolet light source is suitable for generating an ultraviolet light for curing the colloid.
一实施例中,该光学检测系统适于执行以下步骤:利用该计算机,求得该第一光学装置的该光学性质,该光学性质包含一MTF信息;参考该MTF信息,并利用该移动平台移动该夹爪,借以调整该第一镜头的镜片或镜群,而优化该镜头的该镜片或该镜群的对心;当完成该第一镜头的该镜片或该镜群的对心动作,且确认该第一镜头的该MTF信息符合一预设规格时,利用该点胶模块对该第一镜头点胶;而且,当该点胶模块对该第一镜头点胶后,利用紫外线光源使该胶体固化。In one embodiment, the optical detection system is adapted to perform the following steps: use the computer to obtain the optical property of the first optical device, the optical property includes MTF information; refer to the MTF information, and use the mobile platform to move The gripper is used to adjust the lens or the lens group of the first lens to optimize the centering of the lens or the lens group of the lens; when the centering action of the lens or the lens group of the first lens is completed, and When confirming that the MTF information of the first lens meets a preset specification, use the dispensing module to dispense glue to the first lens; and, after the dispensing module dispenses glue to the first lens, use an ultraviolet light source to make the The colloid cures.
一实施例中,该第二工作模块还包含一视觉相机,该视觉相机用于该第二镜头的孔径。其中,该计算机再利用已预先储存的从该第一工作模块取得的该第二镜头的焦距,计算该第二镜头的光圈,而且该光圈=该焦距/该孔径。一实施例中,该视觉相机还构成为针对该第二镜头中的一镜片表面,进行对焦扫描并分析该镜片表面的脏污。一实施例中,该第二工作模块还包含一影像感应模块,该影像感应模块感应该第二镜头成像范围内的亮度分布并计算其相对照度,借以对该第二镜头周边光量进行检测。In one embodiment, the second working module further includes a vision camera, and the vision camera is used for the aperture of the second lens. Wherein, the computer calculates the aperture of the second lens by using the pre-stored focal length of the second lens obtained from the first working module, and the aperture=the focal length/the aperture. In one embodiment, the vision camera is further configured to perform focus scanning on a lens surface of the second lens and analyze the dirt on the lens surface. In one embodiment, the second working module further includes an image sensing module. The image sensing module senses the brightness distribution within the imaging range of the second lens and calculates its relative illuminance, so as to detect the peripheral light of the second lens.
一实施例中,该第二工作模块还包含一穿透率光源及一光谱仪。穿透率光源适于发出一穿透率检测用光线。光谱仪用以接收该穿透率检测用光线,并且求得该第二镜头的穿透率及穿透光谱分布,借以能够进行该第二镜头的穿透率检测。一实施例中,该第二工作模块还包含一条码扫描器,该条码扫描器扫描该第二镜头的一条码,而可以将该第一工作模块及第二工作模块的测试结果及条码,进行报告的整合输出。In one embodiment, the second working module further includes a transmittance light source and a spectrometer. The transmittance light source is suitable for emitting light for transmittance detection. The spectrometer is used to receive the light for transmittance detection, and obtain the transmittance and transmission spectrum distribution of the second lens, so as to detect the transmittance of the second lens. In one embodiment, the second working module further includes a barcode scanner, and the barcode scanner scans the barcode of the second lens, so that the test results and barcodes of the first working module and the second working module can be processed The consolidated output of the report.
依据本发明一实施例,提出一种光学检测系统,用以检测一光学装置,该光学装置为一镜头。光学检测系统包含一载台及一工作模块。工作模块包含一入射视角设置结构、一光源、一标靶、至少一望远影像获取模块、一计算机、一夹爪及一移动平台。载台用以载负该光学装置。工作模块用以对该光学装置进行一检测功能。光源用以产生一光线。标靶具有一测试图样,且设置成使该光线通过该标靶,并形成一光型。至少一望远影像获取模块用以接收该光型,并依据该光型形成一测试影像,而且,该至少一望远影像获取模块设置于该入射视角设置结构,并以一入射角接收该光型。该计算机依据该测试影像利用一软件演算进行计算,而求得该光学装置的包含一MTF信息的光学性质。夹爪用以夹持该镜头。移动平台连接于该夹爪,用以移动该夹爪。光学检测系统适于执行以下步骤:利用该计算机,求得该光学装置的该光学性质,该光学性质包含一MTF信息;参考该MTF信息,并利用该移动平台移动该夹爪,借以调整该镜头的镜片或镜群,而优化该镜头的该镜片或该镜群的对心。According to an embodiment of the present invention, an optical inspection system is provided for inspecting an optical device, and the optical device is a lens. The optical detection system includes a carrier and a working module. The working module includes an incident angle setting structure, a light source, a target, at least one telescopic image acquisition module, a computer, a gripper and a mobile platform. The stage is used for carrying the optical device. The working module is used for performing a detection function on the optical device. The light source is used to generate a light. The target has a test pattern and is arranged so that the light passes through the target and forms a light pattern. At least one telescopic image acquisition module is used to receive the light pattern and form a test image according to the light pattern. Moreover, the at least one telephoto image acquisition module is arranged on the incident viewing angle setting structure and receives the light pattern at an incident angle. The computer calculates by using a software calculation according to the test image, and obtains the optical properties of the optical device including MTF information. The jaws are used to hold the lens. The moving platform is connected to the gripper for moving the gripper. The optical detection system is adapted to perform the following steps: use the computer to obtain the optical property of the optical device, the optical property includes MTF information; refer to the MTF information, and use the mobile platform to move the gripper to adjust the lens The lens or mirror group of the lens, and optimize the centering of the lens or the mirror group of the lens.
一实施例中,该工作模块还包含一点胶模块及一紫外线光源。点胶模块适于对该镜头点胶,而将一胶体涂布于该镜头。紫外线光源适于产生一紫外光,用以使该胶体固化。而且,该光学检测系统还执行以下步骤:当完成该镜头的该镜片或该镜群的对心动作,且确认该镜头的该MTF信息符合一预设规格时,利用该点胶模块对该镜头点胶;而且当该点胶模块对该镜头点胶后,利用紫外线光源使该胶体固化。In one embodiment, the working module further includes a glue dispensing module and an ultraviolet light source. The dispensing module is suitable for dispensing glue on the lens, and coating a glue on the lens. The ultraviolet light source is suitable for generating an ultraviolet light for curing the colloid. Moreover, the optical detection system also performs the following steps: when the centering action of the lens or the lens group of the lens is completed, and the MTF information of the lens is confirmed to meet a preset specification, use the dispensing module to the lens dispensing glue; and when the glue dispensing module dispenses glue to the lens, the glue is cured by using an ultraviolet light source.
依据本发明一实施例的光学检测系统,位移机构连接于至少一载台,用以使该至少一载台产生位移,借以使载台对应于工作模块。借此设计,使光学检测系统能够在时间上重叠的同时对不同的镜头进行不同功能的检测或调整。在位移机构使镜头产生位移的架构下,可以同时并行多个功能的检测,借以节省检测及/或调整时间。一实施例中,光学检测系统可以在测量到镜头的MTF信息不符合预期时,同时进行镜头的镜片或镜群的对心,借以达到预定的MTF规格。According to the optical detection system according to an embodiment of the present invention, the displacement mechanism is connected to at least one stage for causing displacement of the at least one stage, so that the stage corresponds to the working module. With this design, the optical detection system can detect or adjust different functions of different lenses while overlapping in time. Under the structure that the lens is displaced by the displacement mechanism, the detection of multiple functions can be performed in parallel at the same time, so as to save detection and/or adjustment time. In one embodiment, when the measured MTF information of the lens is not as expected, the optical detection system can simultaneously perform centering of the lenses or lens groups of the lens, so as to achieve a predetermined MTF specification.
附图说明Description of drawings
图1显示本发明一实施例的光学检测系统的主要架构的立体图。FIG. 1 shows a perspective view of the main structure of an optical detection system according to an embodiment of the present invention.
图2显示本发明一实施例的光学检测系统的一部分的放大立体图。FIG. 2 shows an enlarged perspective view of a part of an optical inspection system according to an embodiment of the present invention.
图3显示本发明一实施例的光学检测系统的一工作模块的示意图。FIG. 3 shows a schematic diagram of a working module of an optical detection system according to an embodiment of the present invention.
图4显示本发明一实施例的光学检测系统的一部分的放大立体图。FIG. 4 shows an enlarged perspective view of a part of an optical inspection system according to an embodiment of the present invention.
图5显示本发明一实施例的光学检测系统的一部分的放大立体图。FIG. 5 shows an enlarged perspective view of a part of an optical detection system according to an embodiment of the present invention.
附图标号:Figure number:
200:光学检测系统200: Optical detection system
210:载台210: carrier
220:位移机构220: displacement mechanism
221:旋转盘221: rotating disk
230:标靶模块230: Target module
231:光源231: light source
232:标靶232: Target
240:望远影像获取模块240: Telephoto image acquisition module
250:入射视角设置结构250: Incident angle setting structure
251:弧形轨道251: arc track
260:计算机260: computer
271:夹爪271: Gripper
272:XY精密移动平台272: XY precision mobile platform
275:点胶模块275: Dispensing module
276:紫外线光源276: UV light source
281:视觉相机281: Vision Camera
282:影像感应模块282: Image sensor module
283:光纤光源283: Fiber optic light source
284:光谱仪284: Spectrometer
285:条码扫描器285: barcode scanner
941:镜头941: Lens
具体实施方式Detailed ways
依据本发明一实施例,提出一种能够对镜头进行多种功能光学检测及/或调整的光学检测系统,其整合了MTF检测的工作模块及其他测试项目的工作模块,而可以适应镜头应用的多元化,对镜头进行MTF检测以外的各种的其他测试项目,或调整镜片组装。以下,将针对光学检测系统进行更详细地说明。According to an embodiment of the present invention, an optical detection system capable of performing optical detection and/or adjustment of multiple functions on the lens is proposed, which integrates the working modules of MTF detection and other test items, and can adapt to the application of the lens To diversify, perform various other test items on the lens other than the MTF test, or adjust the lens assembly. Hereinafter, the optical detection system will be described in more detail.
图1显示本发明一实施例的光学检测系统的主要架构的立体图。图2显示本发明一实施例的光学检测系统的一部分的放大立体图。如图1及图2所示,光学检测系统200适于检测一待测光学装置。一实施例中,待测光学装置可以为一镜头941,而光学检测系统200,用以检测镜头941多种参数及调整镜头941中镜片或镜群的MTF对心等。本实施例中,光学检测系统200包含至少一载台210、一位移机构220、一标靶模块230、至少一望远影像获取模块240及一入射视角设置结构250。较佳地,该至少一载台210包含多个载台210,且载台210用以载负待调整或待测试的镜头941。位移机构220连接于该多个载台210,用以使该多个载台210产生位移,使一载台210对应于一工作模块(或称为工作站)。借此设计,使光学检测系统200能够在时间上重叠地同时对不同的镜头941进行不同功能的检测或调整。该多个工作模块可以为例如进行MTF偏心调整与测试、光圈(F number)检测、穿透率检测、脏污测试、镜头条码扫描等功能的工作模块,上述多项功能在位移机构220使镜头941产生位移的架构下,可以同时并行借以节省检测或调整时间。FIG. 1 shows a perspective view of the main structure of an optical detection system according to an embodiment of the present invention. FIG. 2 shows an enlarged perspective view of a part of an optical inspection system according to an embodiment of the present invention. As shown in FIGS. 1 and 2 , the
本实施例中,位移机构220为转盘式架构,且包含有旋转盘221,旋转盘221可以进行旋转,使该多个载台210在不同旋转角度,并且分别对应不同的工作模块,而使该多个工作模块可以同时并行,借以节省检测或调整该多个镜头941的时间。In this embodiment, the
图3显示本发明一实施例的光学检测系统的一工作模块的示意图。如图3所示,光学检测系统200可以还包含一计算机260。入射视角设置结构250可以为一弧形架构。入射视角设置结构250可以包含至少一弧形轨道251,弧形轨道251形成有其贯穿上下表面的圆弧沟槽。该至少一望远影像获取模块240设于该至少一弧形轨道251,且能够沿着该至少一弧形轨道251的圆弧沟槽移动,而被置于该至少一弧形轨道251的不同位置,借以获取不同视角的测试影像Im。一实施例中,弧形轨道251的圆弧沟槽为一连续的沟槽,便于调整望远影像获取模块240在连续的圆弧沟槽的位置,以使望远影像获取模块240适应镜头941的多种检测需求的入射视角。FIG. 3 shows a schematic diagram of a working module of an optical detection system according to an embodiment of the present invention. As shown in FIG. 3 , the
载台210承载并固定例如为镜头941的待测光学装置。本发明不限定待测光学装置的种类,待测光学装置可以为一镜头、一相机或摄影机等光学装置。本实施例中包含多个望远影像获取模块240,该多个望远影像获取模块240设于入射视角设置结构250的不同位置,并且能够在不同的入射角接收一光线或光型。一实施例中,标靶模块230可以包含有一标靶232及一光源231。光源231用以产生一光线。标靶232设有一测试图样(未图示)。来自光源231的光线穿过标靶232,并根据测试图样形成图案化的光型I后,通过镜头941,再照射至望远影像获取模块240,而可被望远影像获取模块240获取。一实施例中,光学检测系统200为一无限-有限距或有限-有限距共轭系统,。望远影像获取模块240的望远镜头(未图示)提供一无穷远物距,望远影像获取模块240的影像感测器(未图示)取得包含标靶232的测试图样的测试影像Im,并且传输至计算机260。计算机260依据该测试影像Im利用一软件演算进行计算,而求得镜头941的光学性质。光源231的光线穿透刻有分析图样的标靶232,经由待测镜头941投影至望远影像获取模块240的望远镜头及影像感测器,其中望远镜头提供一无穷距或有限物距,影像感测器将它所获取的具有标靶图样的测试影像Im,传输至计算机260,再由软件演算得知该影像MTF等品质。The
在一实施例中,位移机构220包含一XY平移台位移机构,能够在X方向及Y方向的平面上进行位移。该多个载台210可分别承载一镜头941,该多个载台210连接于位移机构220的XY平移台位移机构,可进行同一类型的镜头941的批量检测。In one embodiment, the
图4显示本发明一实施例的光学检测系统的一部分的放大立体图。如图4所示,光学检测系统200还包含一夹爪271、一XY精密移动平台272、一点胶模块275及一紫外线光源(UV光源)276。图4显示了进行镜头941的镜片或镜群的MTF调心操作,并且利用点胶模块275对镜头941点胶,再利用紫外线光源276来固化密封胶的工作模块的部分。XY精密移动平台272连接于夹爪271并且用以移动夹爪271。FIG. 4 shows an enlarged perspective view of a part of an optical inspection system according to an embodiment of the present invention. As shown in FIG. 4 , the
在图4架构下,XY精密移动平台272及夹爪271构成为如下,当要进行镜头941的镜片或镜群的调心时,夹爪271会自动地或被控制地移至标靶232与镜头941之间,并下压夹持镜头941的镜片或镜群,利用XY精密移动平台272移动夹爪271并参考即时的MTF信息,进行镜头941的镜片或镜群的MTF对心的优化,当完成上述对心动作后若符合预定的MTF规格,则利用点胶模块275的胶针对镜头941进行点胶,再利用紫外线光源276进行UV固化等动作,以固定镜头941中镜片间的相对关系。依据前述习知技术,无法调整镜头941的镜片或镜群偏心,仅能够进行镜头成品测试,相对于此,本实施例的光学检测系统200的有利点在于,除了进行对镜头941进行MTF检测之外,还能够进行镜头941的镜片或镜群的对心动作。在此,所谓的对心或调心,是指利用夹爪夹持镜头941的镜片或镜群,借以移动镜头941的镜片或镜群,使镜头941的光学性质达到一预定标准,而所谓的MTF对心或MTF调心是指使镜头941的MTF达到一预定的MTF规格。Under the framework of FIG. 4 , the XY
一实施例中,镜片或镜群MTF调心的模块与MTF测试模块,可单独存在,且不需搭配其他测试站别。一实施例中,镜片或镜群MTF调心的模块,可以只需有MTF检测功能,不一定要具有调心功能,并且只作成品测试应用即可。一实施例中,不限于图1实施例中镜头941的前端朝下,若镜头941的前端朝上时,则可以于光学检测系统200中增加镜子元件,而使图1实施例相关测试架构作为镜像反置设计。In one embodiment, the lens or lens group MTF alignment module and the MTF test module can exist independently, and do not need to be matched with other test stations. In one embodiment, the MTF centering module of the lens or lens group may only need to have the MTF detection function, not necessarily the centering function, and it can only be used for finished product testing. In one embodiment, it is not limited to the front end of the
由于光学光路为可逆,因此本发明亦不限于图1实施例中MTF测试采逆投影(标靶在像面端、感应器在物面端),一实施例中,也为正投影架构(标靶在物面端、感应器在像面端)。除此之外,一实施例中,在光学检测系统200中,物面端也可以采用面型光源搭配标靶。一实施例中,光学检测系统200中也可以再增加或搭配增距镜,用以增加物距等。Since the optical path is reversible, the present invention is not limited to the MTF test in the embodiment shown in FIG. 1 using reverse projection (the target is at the image plane end, and the sensor is at the object plane end). In one embodiment, it is also an orthographic projection architecture (the mark The target is on the object side, and the sensor is on the image side). In addition, in an embodiment, in the
图5显示本发明一实施例的光学检测系统的一部分的放大立体图。如图5所示,一实施例中,光学检测系统200(或其另一工作模块)可以还包含一视觉相机281。利用视觉相机281取得待测镜头941的孔径,再利用MTF测试站已取得的焦距即可计算待测镜头941的光圈。FIG. 5 shows an enlarged perspective view of a part of an optical detection system according to an embodiment of the present invention. As shown in FIG. 5 , in an embodiment, the optical detection system 200 (or another working module thereof) may further include a
光圈=焦距/孔径Aperture = focal length / aperture
一实施例中,视觉相机281能够进行脏污检测,而视觉相机281所处的位置,可以作为进行脏污检测的工作模块的位置。视觉相机281能够进行可连续变化物距对焦,并且视觉相机281与光圈测试可共用,针对待测镜头941中每一镜片表面,进行对焦扫描并分析每一镜片表面的脏污。In one embodiment, the
如图5所示,一实施例中,光学检测系统200(或其另一工作模块)可以还包含一影像感应模块282,影像感应模块282包含一影像感应器及一均匀光源。影像感应模块282的均匀光源用以发出光线,而影像感应模块282的影像感应器感应该待测镜头941成像范围内的亮度分布并计算其相对照度。此时,影像感应模块282能够对镜头941周边光量进行检测,而影像感应模块282所处位置为镜头周边光量检测的工作模块的位置。As shown in FIG. 5 , in an embodiment, the optical detection system 200 (or another working module thereof) may further include an
如图5所示,一实施例中,光学检测系统200(或其另一工作模块)可以还包含一光纤光源283及一光谱仪284。光学检测系统200利用光纤光源283及光谱仪284取得待测镜头941的穿透率及穿透光谱分布。光纤光源283及光谱仪284能够进行镜头穿透率检测,故光纤光源283及光谱仪284所处位置为镜头穿透率检测的工作模块的位置。As shown in FIG. 5 , in an embodiment, the optical detection system 200 (or another working module thereof) may further include a fiber optic
如图5所示,一实施例中,光学检测系统200(或其另一工作模块)可以还包含条码扫描器285。光学检测系统200利用条码扫描器285扫描该待测镜头941的条码,而可以将所有工作模块的测试结果与条码,进行报告的整合输出,以供查存追踪。条码扫描器285用以进行镜头条码扫描,故条码扫描器285所处位置为镜头条码扫描的工作模块的位置。As shown in FIG. 5 , in an embodiment, the optical detection system 200 (or another working module thereof) may further include a
依据本发明一实施例,将入射视角设置结构250设于载台210的下侧面(第一侧),而视觉相机281、标靶模块230、影像感应模块282、条码扫描器285分别设于载台210的上侧面(相对于该第一侧的载台210的第二侧)。一实施例中,光纤光源283及光谱仪284分别设于载台210的两相对侧,较佳地,光谱仪284设于载台210的下侧面(第一侧),而光纤光源283设于载台210的上侧面(第二侧)。依据前述多个相对位置的设置,能够使各工作模块更平顺地操作。入射视角设置结构250的多个弧形轨道251的配置,包围出一个半球体,该半球体朝下突出,亦即上侧的剖面的圆面积大于下侧的剖面的圆面积。依据此设计,能够让其他工作模块的元件,设置在该半球体的顶面上,如此设计使镜头941更容易载置不需要倒置,也不需要特别地因应镜头941的倒置而设置其他夹持机构,在进行检测时较为方便。According to an embodiment of the present invention, the incident viewing
本发明不限于前述功能的测试,除了MTF检测、光圈检测、脏污检测、周边光量检测、穿透率检测、条码扫描等之外,光学检测系统200亦可以增设能够进行目前现有或未来发展的其他功能的工作模块。The present invention is not limited to the test of the aforementioned functions. In addition to MTF detection, aperture detection, dirt detection, peripheral light detection, penetration rate detection, barcode scanning, etc., the
如上述,依据本发明一实施例的光学检测系统200,位移机构220连接于该多个载台210,用以使该多个载台210产生位移,借以使一载台210对应于一工作模块(或称为工作站)。借此设计,使光学检测系统200能够在时间上重叠地同时对不同的镜头941进行不同功能的检测或调整。该多个工作模块举例而言可以为例如进行MTF偏心调整与测试、光圈(Fnumber)检测、穿透率检测、脏污测试、镜头条码扫描等功能的工作模块,上述多项功能在位移机构220使镜头941产生位移的架构下,可以同时并行借以节省检测或调整时间。一实施例中,光学检测系统200可以在测量到镜头941的MTF信息不符合预期时,同时进行镜头941的镜片或镜群的对心,借以达到预定的MTF规格。As mentioned above, in the
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW110144485 | 2021-11-29 | ||
TW110144485 | 2021-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116183170A true CN116183170A (en) | 2023-05-30 |
Family
ID=86446760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210387961.7A Pending CN116183170A (en) | 2021-11-29 | 2022-04-14 | Optical detection system |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN116183170A (en) |
TW (1) | TWI816353B (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105445885B (en) * | 2015-10-30 | 2019-06-18 | 宁波舜宇光电信息有限公司 | Adjustable optical lens and camera module and manufacturing method thereof |
TWI583932B (en) * | 2015-12-09 | 2017-05-21 | 財團法人國家實驗研究院 | Device for measuring optical quality of lenses |
CN207799328U (en) * | 2018-02-06 | 2018-08-31 | 深圳市通用核心光电有限公司 | A kind of equipment by parallel light tube and MTF algorithm detection optical system resolving powers |
TWM569425U (en) * | 2018-06-14 | 2018-11-01 | 九驊科技股份有限公司 | Optical testing device |
CN113206936B (en) * | 2021-04-14 | 2023-03-10 | 江西欧迈斯微电子有限公司 | AA method of camera module, camera module and electronic equipment |
CN113238390A (en) * | 2021-06-15 | 2021-08-10 | 深圳双十科技有限公司 | Eight-station automatic focusing machine for optical lens |
-
2022
- 2022-04-06 TW TW111113008A patent/TWI816353B/en active
- 2022-04-14 CN CN202210387961.7A patent/CN116183170A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
TWI816353B (en) | 2023-09-21 |
TW202321666A (en) | 2023-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5672240B2 (en) | System and method for inspecting a wafer | |
TWI702390B (en) | Apparatus, method and computer program product for defect detection in work pieces | |
US7113273B2 (en) | Machine and method for inspecting ferrule of optical connector | |
JP2019049556A (en) | System and method for inspecting wafers | |
KR102740720B1 (en) | Apparatus, method and computer program product for inspection of at least side faces of semiconductor devices | |
US10142621B2 (en) | Mass production MTF testing machine | |
US20140160267A1 (en) | Image Pickup Apparatus | |
CN211061152U (en) | Lens detection equipment integrating field of view, modulation transfer function and centering measurement | |
CN106290390B (en) | Defect detecting device and method | |
CN107064173A (en) | The detection means and detection method of large-scale planar optical elements beauty defects | |
CN108931185B (en) | Detection device and detection method of optical-mechanical module | |
CN111426287A (en) | Parallel color confocal flatness measuring system | |
CN111916366B (en) | Wafer inspection apparatus | |
TWI816353B (en) | Optical testing system | |
TW201944061A (en) | Apparatus and method for repairing printed circuit boards including a laser processing module, an observation module and a central processing unit | |
KR20080088946A (en) | Three-dimensional shape inspection device and three-dimensional shape inspection method using the same | |
TWI470299B (en) | Method and apparatus for auto-focusing | |
KR101164208B1 (en) | Board inspection apparatus | |
CN109799076A (en) | A kind of self-centering method and device of optical element | |
CA3164272A1 (en) | Device, method, and use of the device for adjusting, assembling and/or testing an electrooptical system | |
CN221666867U (en) | Camera module, object detection workbench and object detection workbench line | |
JP2828145B2 (en) | Optical section microscope apparatus and method for aligning optical means thereof | |
Chen et al. | An image based optical lens eccentric error inspection system | |
KR20080089314A (en) | Three-dimensional shape inspection device and three-dimensional shape inspection method using the same | |
CN113176076A (en) | Optical detection system and optical detection method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |