Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Light-shielding sheet and imaging lens group

A technology of shading sheet and shading area, applied in the field of imaging lens group, can solve the problems of difficult operation, unstable performance, large cost, etc., and achieve the effect of reducing reflection and diffusion, and reducing stray light phenomenon.

Pending Publication Date: 2017-01-11
VISTA OPTRONICS
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the surface of the inner wall of the light-transmitting hole of the light-shielding sheet is coated with matting paint, although this method can solve the problem of reflection on the inner wall of the light-transmitting hole, it is difficult to operate, unstable in performance, and requires a large cost

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
  • Light-shielding sheet and imaging lens group
  • Light-shielding sheet and imaging lens group
  • Light-shielding sheet and imaging lens group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] The first embodiment of the present invention provides a light-shielding sheet, such as Figure 1 to Figure 4 shown.

[0026] Such as figure 1 As shown, the body of the light-shielding sheet 10 is a circular light-transmitting flat plate with a certain thickness, having opposite and parallel first surfaces 101 and second surfaces 102 , and the material of the light-transmitting plate can be light-transmitting materials such as plastic or glass.

[0027] Such as figure 2 , image 3 As shown, the surface of the central light-transmitting area on the first surface 101 of the light-transmitting flat panel 10 is covered with a functional filter film 103. The filter film can be selected according to different requirements, and can be an infrare...

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 relates to a light-shielding sheet, comprising a round light transmissive plate, wherein the light-shielding sheet is provided with a first side and a second side which are opposed and parallel, and characterizedin that the first side of the light-shielding sheet has a light transmissive region and an opaque region near the light transmissive region. The light-shielding sheet can reduce or eliminate stray light. The invention also provides an imaging lens group comprises the light-shielding sheet.

Description

technical field [0001] The invention relates to an optical element, in particular to a light-shielding sheet and an imaging lens group with the light-shielding sheet. Background technique [0002] With the development of the electronic equipment industry, more and more application fields require the assistance of imaging equipment to complete more complex functions in order to improve the performance and service quality of application products in the field. [0003] The lens module includes a lens barrel, a group of lens groups assembled in the lens barrel and a shading sheet. The function of the shading sheet is to adjust the luminous flux in the optical system. When the external light enters the lens, the unnecessary light can be blocked from entering through the shading sheet between the lenses. The ordinary shading sheet in the mobile phone lens of the prior art is a circular sheet with a light-transmitting perforation structure, and the inner wall surface of the light-...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G03B11/04
CPCG03B11/04
Inventor 孙锋青杨帆卞锋菊
Owner VISTA OPTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com