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

Small target surface high resolution super wide angle fisheye lens

A high-resolution, wide-angle fish technology, applied in optical components, optics, instruments, etc., can solve the problems of large field of view and close-up distance, great differences in performance indicators, and large application limitations. Spectral confocal, compact structure, clear imaging effect

Active Publication Date: 2015-10-28
FUJIAN FORECAM OPTICS CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The emergence and application of small TV surveillance cameras have a history of 20 to 30 years, and there are various specifications and models of miniature camera lenses to match them. Their performance indicators vary greatly, and their application limitations are large, and most of them are low-end. The product has low performance indicators, and most of them can only be applied to ordinary cameras that are generally only suitable for 200,000 to 300,000 pixels. large range

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
  • Small target surface high resolution super wide angle fisheye lens
  • Small target surface high resolution super wide angle fisheye lens
  • Small target surface high resolution super wide angle fisheye lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.

[0021] Such as figure 1 As shown, a small target surface high-resolution ultra-wide-angle fisheye lens, the optical system of the lens is provided with a front group A and a rear group B of lens groups in sequence along the incident direction of light from left to right, and the front group A There is a diaphragm C between the rear group B, and the front group A includes a negative crescent lens A-1 (1), a negative crescent lens A-2 (2), and a biconcave lens A arranged in sequence from left to right. -3(3) and biconvex lens A-4(4); the rear group B includes biconvex lens B-1(5), biconvex lens B-2(6) and negative crescent lens B arranged in sequence from left to right -3(7) close-fitting cemented groups and bi-convex lenses B-4(8).

[0022] In this embodiment...

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 small-target-surface high-resolution ultra-wide field fish-eye lens. According to the lens, an optical system is provided with a front group A and a back group B of lens groups along the light incidence direction from left to right in sequence, wherein a diaphragm C is arranged between the front group A and the back group B; the group A comprises a negative crescent lens A-1, a negative crescent lens A-2, a double-concave lens A-3 and a double-convex lens A-4 which are arranged in sequence from left to right; the group B comprises a double-convex lens B-1, a gluing group which is in sealed connection with a double-convex lens B-2 and a negative crescent lens B-3, and a double-convex lens B-4. The small-target-surface high-resolution ultra-wide field fish-eye lens has the performances of full view fields, water prevention, dust prevention, scraping prevention and utilization in day and night, and can be applied to security and protection monitoring of oversized view fields, particularly lobbies of hotels, clubs and the like.

Description

technical field [0001] The invention relates to a small target surface high-resolution ultra-wide-angle fisheye lens, which belongs to the field of optical imaging devices of video technology. Background technique [0002] The emergence and application of small TV surveillance cameras have a history of 20 to 30 years, and there are various specifications and models of miniature camera lenses to match them. Their performance indicators vary greatly, and their application limitations are large, and most of them are low-end. The product has low performance indicators, and most of them can only be applied to ordinary cameras that are generally only suitable for 200,000 to 300,000 pixels. The distance limit is large. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a full field of view, waterproof, dustproof, scratch-resistant and day and night dual-purpose small target surface high-resolution ultra-wide-angle fisheye lens,...

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 Patents(China)
IPC IPC(8): G02B13/06G02B13/00
Inventor 郑锦彬刘辉刘任重陈开阮
Owner FUJIAN FORECAM OPTICS CO LTD
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