Fixed focus digital lens

A digital and lens technology, applied in the field of newly designed digital lens devices, can solve the problems of affecting image quality, weakening of brightness and overall brightness, and attenuation of light around the lens.

Inactive Publication Date: 2005-09-21
PREMIER IMAGE TECH
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] When the light passes through the lens and forms an image on the imaging surface, the luminance around the lens is significantly weakened compared with the overall luminance. This is caused by

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
  • Fixed focus digital lens
  • Fixed focus digital lens
  • Fixed focus digital lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] see figure 2 As shown, it is a fixed-focus digital lens, which includes a short-focus optical lens composed of a positive optical power first lens 10, a negative optical power second lens 20, and a positive optical power third lens 30, and reduces light attenuation around the lens, so Avoid the occurrence of dark bands on the imaging surface. At the same time, the use of different materials for each lens can balance the temperature changes of each lens, so that the image quality of the lens will be reduced due to temperature changes.

[0050] Among them, the three-piece fixed-focus digital lens is made by plastic injection molding, so it has the advantages of small size, easy molding and simple production, so as to reduce costs. The first lens 10 with positive optical power is made of acrylic (Acrylic) material, the negative optical power second lens 20 is made of polycarbonate (Polycarb) material, and the positive optical power third lens 30 is made of amorphous polyo...

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

This invention discloses one stationary focus digit lens head, which comprises positive optics first lens, negative optical second lens and positive optical third lens, wherein, the first lens is made of crylic acid; the second lens is made of polycarb; the third lens is made of non-crystal polyolefin transparent plastic and the invention uses each materials to balance the temperature changes.

Description

technical field [0001] The invention relates to a fixed-focus digital lens, in particular to a fixed-focus digital lens which uses a newly designed digital lens device to improve the brightness around the lens and reduce the sensitivity of temperature changes. Background technique [0002] In view of the fact that digital cameras have been widely used in daily life in recent years, especially recently, they have been further used on small image capture devices, such as combined with mobile phones and digital assistants (PDAs), to create humanized and portable Therefore, the engineers are devoting themselves to designing lenses with small size, good quality and low price, so as to meet the needs of the future market. [0003] see figure 1 , is a known digital camera lens device, which has two lenses, from the object side to the image plane, it is an optical lens composed of a positive optical power first lens 10a and a positive optical power second lens 20a, the first lens i...

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): G02B9/14
Inventor 郭仲渊
Owner PREMIER IMAGE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap