Unlock instant, AI-driven research and patent intelligence for your innovation.

Eccentricity testing device and method

A test device and eccentricity technology, applied in the direction of testing optical performance, etc., can solve the problems of limited accuracy, high cost, and unsuitable application in mass production, and achieve the effect of high accuracy and low cost

Active Publication Date: 2019-06-28
NINGBO SUNNY AUTOMOTIVE OPTECH
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This equipment needs to invest a lot of cost and is not suitable for mass production
Moreover, the accuracy calculated by the device using the principle of smooth light path is limited
In addition, the device can only measure the center eccentricity vertically, and cannot measure the eccentricity of other angles

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Eccentricity testing device and method
  • Eccentricity testing device and method
  • Eccentricity testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: Measurement of center target eccentricity value

[0042] Image 6 Schematically shows the eccentricity test device according to Embodiment 1 of the present application.

[0043] like Image 6 As shown, the eccentricity testing device may include a light source 6, a target module 5 with a central target, a rotation module 4, a camera module including the camera 1, and a calculation module (not shown). The optical system 3 to be tested (for example, a lens) is placed on the rotating module 4 and clamped. The central target of the target module 5 is located on the system axis of the optical system 3 , and the extension of the line connecting the central target of the target module 5 and the optical system 3 to be tested passes through the camera 1 . That is to say, the camera 1 is positioned directly above the center target of the optical system 3 to be tested and the target module 5, and the extension line of the connection between the center target of ...

Embodiment 2

[0045] Embodiment 2: Measurement of side target eccentricity value

[0046] figure 2 Schematically shows the eccentricity test device according to Embodiment 2 of the present application.

[0047] like figure 2 As shown, the eccentricity testing device may include a light source 6, a target module 5 having a center target a and side targets b, a rotation module 4, a camera module 10 including cameras 1 and 2, and a computing module (not shown). The optical system 3 to be tested (for example, a lens) is placed on the rotating module 4 and clamped.

[0048] The central target a of the target module 5 is located on the system axis of the optical system 3 , and the extension of the line connecting the central target a of the target module 5 and the optical system 3 to be tested passes through the camera 1 . That is to say, the camera 1 is located directly above the central target a of the optical system to be tested 3 and the target module 5, and the extension line of the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an eccentricity testing device, and the device is used for measuring an eccentricity value of an optical system, and is characterized in that the device comprises a light source; a target module which is located above the light source and comprises at least one target; a rotating module which is located on the target module and is arranged at an interval with the target module, wherein the rotating module is configured to keep the optical system and drive the optical system to rotate; a camera module which is configured to receive transmitted light which is emitted by the light source and penetrates through the target module and the optical system, wherein the transmitted light forms a target image of a target on the camera module; and a calculation module which isconfigured to calculate an eccentricity value, associated with the target, of the optical system based on the motion track of a target image, wherein the rotation module drives the optical system to rotate for at least one circle, and the calculation module determines the motion track of the target image formed by the target on the camera module and calculates the eccentric value based on the motion track of the target image. The invention further discloses a method for measuring the eccentricity value by using the eccentricity testing device.

Description

technical field [0001] The present application generally relates to the technical field of optical system detection, and more specifically, the present application relates to an eccentricity testing device and method. Background technique [0002] An optical system has an axis of symmetry, usually called the system axis. The centers of each spherical surface are on the system axis, which is called a concentric optical system. The purpose of optical design is to calculate the aberration of the concentric optical system to meet the image quality requirements. However, due to the processing errors of optical parts and mechanical parts, after assembly, the spherical centers of the optical system are not on the system axis, resulting in center deviation. [0003] The center deviation of the optical system will change the aberration correction state of the original design, causing the aberration to change and the aberration to deteriorate. For high-quality lenses, the poor imag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01M11/02
Inventor 朱金献范立权孙晨炜罗挺徐佳栋
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com