CN210444418U - Optical lens detector - Google Patents

Optical lens detector Download PDF

Info

Publication number
CN210444418U
CN210444418U CN201921577741.0U CN201921577741U CN210444418U CN 210444418 U CN210444418 U CN 210444418U CN 201921577741 U CN201921577741 U CN 201921577741U CN 210444418 U CN210444418 U CN 210444418U
Authority
CN
China
Prior art keywords
lens
adjusting
optical lens
mounting sleeve
ccd camera
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.)
Active
Application number
CN201921577741.0U
Other languages
Chinese (zh)
Inventor
程宏
刘佳
童晓红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU ZHIDA ELECTRO-OPTICAL CO LTD
Original Assignee
HANGZHOU ZHIDA ELECTRO-OPTICAL CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU ZHIDA ELECTRO-OPTICAL CO LTD filed Critical HANGZHOU ZHIDA ELECTRO-OPTICAL CO LTD
Priority to CN201921577741.0U priority Critical patent/CN210444418U/en
Application granted granted Critical
Publication of CN210444418U publication Critical patent/CN210444418U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model belongs to the technical field of optical lens detection, and discloses an optical lens detector, which comprises a base, a bracket, an image acquisition assembly, a lens mounting structure, a multi-dimensional adjusting platform and an image processing device, wherein the bracket is vertically arranged on the base; the image acquisition assembly comprises a CCD camera and an objective lens connected to the bottom of the CCD camera, and the CCD camera is electrically connected with the image processing device; the lens mounting structure comprises a mounting sleeve arranged on the multidimensional adjusting platform and a backlight source component arranged in the mounting sleeve, and the measured lens is placed at the top end of the mounting sleeve; the top circumference of installation sleeve is provided with a plurality of adjusting part, and adjusting part is configured to the horizontal position of adjusting the lens of being surveyed relative backlight subassembly. The optical lens detector can improve the accuracy of testing.

Description

Optical lens detector
Technical Field
The utility model relates to an optical lens detects technical field, especially relates to an optical lens detector.
Background
An optical lens detector is a device for detecting whether an optical lens reaches optical technical indexes, and is generally used for detecting various optical lenses such as a desk scanner lens and a bar code scanner lens, wherein the optical technical indexes mainly include a back focal length, a magnification, an optical transfer function and the like. The optical lens detector is provided with a uniform light source, an input light signal is generated through a grating target, an imaging signal is formed through a lens, and optical parameters of the optical lens are obtained through processing and analysis, so that whether the optical lens reaches the standard or not is judged. The conventional optical lens detector is usually fixed on a lens, the lens is inconvenient to adjust, and the lens, a backlight source and a camera are difficult to be kept on the same optical axis after various lenses are replaced, so that the accuracy of the test is influenced.
Therefore, an optical lens inspection apparatus is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical lens detector can improve the accuracy that detects.
To achieve the purpose, the utility model adopts the following technical proposal:
an optical lens detector comprises a base, a support, an image acquisition assembly, a lens mounting structure, a multi-dimensional adjusting table and an image processing device, wherein the support is vertically arranged on the base;
the image acquisition assembly comprises a CCD camera and an objective lens connected to the bottom of the CCD camera, and the CCD camera is electrically connected with the image processing device;
the lens mounting structure comprises a mounting sleeve arranged on the multidimensional adjusting platform and a backlight source component arranged in the mounting sleeve, and the measured lens is placed at the top end of the mounting sleeve and partially extends into the mounting sleeve; the top circumference of installation sleeve is provided with a plurality of adjusting part, adjusting part is configured to adjust the horizontal position of measurand lens relative the backlight subassembly.
Preferably, the adjusting part comprises an elastic part and an adjusting part, the elastic part is installed on the inner side of the installation sleeve, the adjusting part penetrates through the side wall of the installation sleeve, the measured lens is located between the elastic part and the locking part, and the adjusting part can drive the measured lens to move relative to the elastic part.
Preferably, the elastic member is a spring.
Preferably, the adjusting member is a screw, and a threaded hole matched with the screw is formed in the side wall of the mounting sleeve.
Preferably, the backlight source assembly comprises a reticle cylinder sleeved in the mounting sleeve, and a backlight source, a reticle and a homogenizing plate which are sequentially mounted in the reticle cylinder from bottom to top.
Preferably, a linear guide rail module is vertically arranged on the support, and the image acquisition assembly is connected to the output end of the linear guide rail module.
Preferably, the driving end of the linear guide rail is provided with an adjusting hand wheel.
Preferably, the optical lens detector further comprises a display screen, and the image processing module is electrically connected with the display screen.
The utility model has the advantages that: the utility model provides an optical lens detector, which is characterized in that a tested lens is arranged on a lens mounting structure, an image acquisition component acquires the information of the tested lens and processes the information through an image processing device, so as to generate test data; the image acquisition assembly comprises a CCD camera and an objective lens connected to the bottom of the CCD camera, and the CCD camera can be lifted and lowered and can scan and detect different view field positions; the CCD camera sends imaging data to an image processing device, data processing is carried out by software, data of the detected lens are given in real time, and detection efficiency and accuracy are improved; the bottom of the lens mounting structure is provided with a multidimensional adjusting platform which is used for adjusting the horizontal position of the lens mounting structure relative to the image acquisition assembly; the top circumference of installation sleeve sets up a plurality of adjusting part, and adjusting part is used for adjusting the horizontal position of being measured the relative backlight subassembly of lens, and from this, backlight subassembly, being measured lens and CCD camera can keep on same optical axis, improve the accuracy of test.
Drawings
Fig. 1 is a schematic structural diagram of an optical lens detector provided in the present invention;
fig. 2 is a cross-sectional view of a lens mounting structure provided by the present invention;
fig. 3 is a sectional view of section a-a in fig. 2.
In the figure: 1. a base; 2. a support; 3. an image acquisition component; 31. a CCD camera; 32. an objective lens; 4. a lens mounting structure; 41. installing a sleeve; 42. a backlight unit; 421. dividing the board cylinder; 422. a backlight source; 423. a reticle; 424. a homogenizing plate; 431. an elastic member; 432. an adjustment member; 5. a multi-dimensional adjusting table; 6. a linear guide rail module; 7. and (5) measuring the lens.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides an optical lens detector, as shown in fig. 1 and 2, which includes a base 1, a bracket 2, an image capturing assembly 3, a lens mounting structure 4, a multi-dimensional adjusting table 5 and an image processing apparatus, wherein the bracket 2 is vertically arranged on the base 1, the image capturing assembly 3 is vertically connected to the bracket 2 in a lifting manner, the multi-dimensional adjusting table 5 is arranged on the base 1, and the lens mounting structure 4 is arranged on the multi-dimensional adjusting table 5 and is opposite to the image capturing assembly 3; the image acquisition assembly 3 comprises a CCD camera 31 and an objective lens 32 connected to the bottom of the CCD camera 31, and the CCD camera 31 is electrically connected with the image processing device; the lens mounting structure 4 comprises a mounting sleeve 41 arranged on the multidimensional adjusting platform 5 and a backlight source component 42 arranged in the mounting sleeve 41, and the measured lens 7 is placed at the top end of the mounting sleeve 41 and partially extends into the mounting sleeve 41; the top portion of the mounting sleeve 41 is circumferentially provided with a number of adjustment members configured to adjust the horizontal position of the lens 7 to be measured with respect to the backlight assembly 42.
As shown in fig. 2 and 3, the adjusting assembly includes an elastic member 431 and an adjusting member 432, the elastic member 431 is installed inside the installation sleeve 41, the adjusting member 432 is installed through the side wall of the installation sleeve 41, the measured lens 7 is located between the elastic member 431 and the locking member, and the adjusting member 432 can drive the measured lens 7 to move relative to the elastic member 431. The adjusting component is used for adjusting the horizontal position of the tested lens 7 relative to the backlight component 42, so that the backlight component 42, the tested lens 7 and the CCD camera 31 can be kept on the same optical axis, and the testing accuracy is improved.
The elastic member 431 may be a spring. The adjustment member 432 may be a screw, and the side wall of the mounting sleeve 41 is provided with a threaded hole for fitting the screw. The screw sets up with the spring relatively, places back on installation sleeve 41 with measurand lens 7, and in the installation sleeve 41 was stretched into to measurand lens 7's bottom, the spring butt in the lateral wall of the section of stretching into of measurand lens 7, the screw passes installation sleeve 41 back butt in the lateral wall of measurand lens 7 opposite side, can adjust the position of measurand lens 7 through adjusting screw's screw-in distance. Optionally, the elastic members 431 and the adjusting members 432 may be provided in two sets and arranged in a cross manner, so that the position of the measured lens 7 on the horizontal plane can be adjusted, the adjusting process is simple and convenient, and the lens can be adjusted in a suitable manner for lenses with different diameters.
The backlight unit 42 includes a partition cylinder 421 sleeved in the mounting sleeve 41, and a backlight 422, a partition 423 and a homogenizing plate 424 sequentially mounted in the partition cylinder 421 from bottom to top. A plurality of lines which are sequentially arranged in parallel at equal intervals are distributed on the reticle 423. During testing, the measured lens 7 is placed on the mounting sleeve 41, the backlight 422 is controlled to emit light, light is uniformly irradiated onto the reticle 423 through the homogenizing plate 424, and the pattern of the reticle 423 forms an image of the reticle 423 through the measured lens 7 and the CCD camera 31 and is transmitted to the image processing device.
For realizing the removal of image acquisition subassembly 3, the vertical linear guide module 6 that is provided with on support 2, image acquisition subassembly 3 is connected in the output of linear guide module 6. And the driving end of the linear guide rail is provided with an adjusting hand wheel. The lifting movement of the image acquisition assembly 3 is driven by manually rotating the adjusting hand wheel, so that the focusing and other testing processes are facilitated.
The optical lens detector also comprises a display screen, and the image processing module is electrically connected with the display screen. The display screen is used for displaying pictures collected by the image collecting assembly 3, test data generated by the image processing module and the like.
In the optical lens detector provided by the embodiment, the tested lens 7 is mounted on the lens mounting structure 4, and the image acquisition component 3 acquires information of the tested lens 7 and processes the information through the image processing device, so as to generate test data; the image acquisition assembly 3 comprises a CCD camera 31 and an objective lens 32 connected to the bottom of the CCD camera 31, and the CCD camera 31 can be lifted and lowered and can scan and detect different view field positions; the CCD camera 31 sends imaging data to an image processing device, data processing is carried out by software, data of the detected lens 7 are given in real time, and detection efficiency and accuracy are improved; the bottom of the lens mounting structure 4 is provided with a multidimensional adjusting platform 5 for adjusting the horizontal position of the lens mounting structure 4 relative to the image acquisition assembly 3; the top circumference of the mounting sleeve 41 is provided with a plurality of adjusting components, and the adjusting components are used for adjusting the horizontal position of the tested lens 7 relative to the backlight source component 42, so that the backlight source component 42, the tested lens 7 and the CCD camera 31 can be kept on the same optical axis, and the testing accuracy is improved.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. An optical lens detector is characterized by comprising a base (1), a support (2), an image acquisition assembly (3), a lens mounting structure (4), a multi-dimensional adjusting platform (5) and an image processing device, wherein the support (2) is vertically arranged on the base (1), the image acquisition assembly (3) is vertically connected to the support (2) in a lifting manner, the multi-dimensional adjusting platform (5) is arranged on the base (1), and the lens mounting structure (4) is arranged on the multi-dimensional adjusting platform (5) and is opposite to the image acquisition assembly (3);
the image acquisition assembly (3) comprises a CCD camera (31) and an objective lens (32) connected to the bottom of the CCD camera (31), and the CCD camera (31) is electrically connected with the image processing device;
the lens mounting structure (4) comprises a mounting sleeve (41) arranged on the multidimensional adjusting platform (5) and a backlight source component (42) arranged in the mounting sleeve (41), and the measured lens (7) is placed at the top end of the mounting sleeve (41) and partially extends into the mounting sleeve (41); the top circumference of the mounting sleeve (41) is provided with a plurality of adjusting components which are configured to adjust the horizontal position of the measured lens (7) relative to the backlight source component (42).
2. The optical lens detector according to claim 1, wherein the adjusting assembly includes an elastic member (431) and an adjusting member (432), the elastic member (431) is installed inside the mounting sleeve (41), the adjusting member (432) is inserted into a sidewall of the mounting sleeve (41), the measured lens (7) is located between the elastic member (431) and the adjusting member (432), and the adjusting member (432) can drive the measured lens (7) to move relative to the elastic member (431).
3. The optical lens detector of claim 2, wherein the resilient member (431) is a spring.
4. The optical lens detector according to claim 2, wherein the adjusting member (432) is a screw, and the side wall of the mounting sleeve (41) is provided with a threaded hole for engaging with the screw.
5. The optical lens detector according to claim 1, wherein the backlight source assembly (42) includes a reticle barrel (421) sleeved in the mounting sleeve (41), and a backlight source (422), a reticle (423) and a homogenizing plate (424) sequentially mounted in the reticle barrel (421) from bottom to top.
6. The optical lens detector according to claim 1, wherein a linear guide module (6) is vertically disposed on the bracket (2), and the image capturing assembly (3) is connected to an output end of the linear guide module (6).
7. The optical lens detector according to claim 6, wherein the driving end of the linear guide module (6) is provided with an adjusting handwheel.
8. The optical lens detector of claim 1, further comprising a display screen, wherein the image processing module is electrically connected to the display screen.
CN201921577741.0U 2019-09-23 2019-09-23 Optical lens detector Active CN210444418U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921577741.0U CN210444418U (en) 2019-09-23 2019-09-23 Optical lens detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921577741.0U CN210444418U (en) 2019-09-23 2019-09-23 Optical lens detector

Publications (1)

Publication Number Publication Date
CN210444418U true CN210444418U (en) 2020-05-01

Family

ID=70410965

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921577741.0U Active CN210444418U (en) 2019-09-23 2019-09-23 Optical lens detector

Country Status (1)

Country Link
CN (1) CN210444418U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111693256A (en) * 2020-06-23 2020-09-22 刘颖 Optical lens detection device based on mechanical transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111693256A (en) * 2020-06-23 2020-09-22 刘颖 Optical lens detection device based on mechanical transmission

Similar Documents

Publication Publication Date Title
CN105675266B (en) Infinite conjugate optical path measures the device and method of the modulation transfer function of optical lens
US7609372B1 (en) System and method for measuring length of camera lens
CN101178369B (en) Industry ray detection negative film digitalizer
CN210444418U (en) Optical lens detector
CN103728121A (en) Multifunctional optical lens parameter detection instrument and method
CN1505751A (en) A multi-fiber optic 2D-array device for sensing and localizing environment perturbation using speckle image processing
CN103322917B (en) A kind of substrate thickness, specification, square degree high-speed intelligent detector
CN101476977A (en) Detection apparatus and detection method for camera optical performance
CN211830951U (en) Image acquisition device
CN203849003U (en) Multifunctional instrument for detecting parameters of optical lens
CN102062676A (en) Medical rigid endoscope detection equipment
CN214747771U (en) Automatic detection equipment for parts
CN206369625U (en) A kind of optical lens is as matter on-line detector
CN210181293U (en) Microscope device capable of automatically focusing
CN101566464B (en) Surgical instrument detector
CN209496409U (en) A kind of screw number detection device
CN210533303U (en) Optical lens piece eccentric instrument
CN209416658U (en) A kind of light filling lamp plate light intensity uniformity measuring device
CN110823908A (en) Cylinder inner wall check out test set
CN210154517U (en) Steel machined part detection equipment
CN211528222U (en) High-precision visual detection device suitable for household appliance production line
CN215447789U (en) Wafer profile measuring instrument
CN216083263U (en) Smoke telescope reticle ringer's mansion picture detector
CN212111170U (en) Device for detecting surface defects of cambered surface area
CN211652596U (en) Cylinder inner wall check out test set

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant