Supercharge Your Innovation With Domain-Expert AI Agents!

A fixed-focus lens, image pickup device and inspection drone

A fixed-focus lens and unmanned aerial vehicle technology, applied in the optical field, can solve the problems of occupying space and small field of view of the fixed-focus lens, so as to achieve convenient portability, reduce the total optical length is too large, and reduce the distance is too small. Effect

Active Publication Date: 2022-04-22
JIAXING ZHONGRUN OPTICAL TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the field of view of fixed-focus lenses for industrial inspections that is common on the market is often not large. How to find objects and locate objects in the inspection process has become a problem that needs to be solved, especially in the practical application of UAV inspections. , it often requires an additional wide-angle lens module to assist in positioning and finding targets, which takes up extra space, which is undoubtedly a burden for drones

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
  • A fixed-focus lens, image pickup device and inspection drone
  • A fixed-focus lens, image pickup device and inspection drone
  • A fixed-focus lens, image pickup device and inspection drone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment one, such as figure 1 Shown, a kind of fixed-focus lens, described fixed-focus lens is made up of four lens groups;

[0035] The fixed-focus lens includes a first lens group G1 , a second lens group G2 , a third lens group G3 and a fourth lens group G4 in order from the object plane side to the image plane side.

[0036] The first lens group G1 consists of a first lens L1 with positive refractive power, a second lens L2 with positive refractive power, a third lens L3 with positive refractive power and a fourth lens L3 with negative refractive power from the object plane side to the image plane side. The lens L4 is composed of the third lens L3 and the fourth lens L4 cemented together.

[0037] The second lens group G2 is composed of a fifth lens L5 with positive refractive power and a sixth lens L6 with negative refractive power from the object plane side to the image plane side, and the fifth lens L5 and the sixth lens L6 are cemented.

[0038] The third l...

Embodiment 2

[0069] Embodiment two, such as Figure 1 to Figure 3 As shown, a fixed-focus lens is composed of four lens groups.

[0070] The fixed-focus lens includes a first lens group G1, a stop STO, a second lens group G2, a third lens group G3, a fourth lens group G4 and an auxiliary component G5 in order from the object plane side to the image plane side.

[0071] The first lens group G1 consists of a first lens L1 with positive refractive power, a second lens L2 with positive refractive power, a third lens L3 with positive refractive power and a fourth lens L3 with negative refractive power from the object plane side to the image plane side. The lens L4 is composed of the third lens L3 and the fourth lens L4 cemented together.

[0072] The second lens group G2 is composed of a fifth lens L5 with positive refractive power and a sixth lens L6 with negative refractive power from the object plane side to the image plane side, and the fifth lens L5 and the sixth lens L6 are cemented.

...

Embodiment 3

[0093] Embodiment three, such as Figure 4 to Figure 6 Shown, a kind of fixed-focus lens, described fixed-focus lens is made up of four lens groups;

[0094] The fixed-focus lens includes a first lens group G1, a stop STO, a second lens group G2, a third lens group G3, a fourth lens group G4 and an auxiliary component G5 in order from the object plane side to the image plane side.

[0095] The first lens group G1 consists of a first lens L1 with positive refractive power, a second lens L2 with positive refractive power, a third lens L3 with positive refractive power and a fourth lens L3 with negative refractive power from the object plane side to the image plane side. The lens L4 is composed of the third lens L3 and the fourth lens L4 cemented together.

[0096] The second lens group G2 is composed of a fifth lens L5 with positive refractive power and a sixth lens L6 with negative refractive power from the object plane side to the image plane side, and the fifth lens L5 and t...

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 a fixed-focus lens, an image pickup device and a patrol drone, and relates to the field of optical technology. The fixed-focus lens is composed of four lens groups; the first lens group consists of the first lens with positive power from the object plane side to the image plane side, the second lens with positive power, the third lens with positive power and negative light The third lens is cemented with the fourth lens; the second lens group is composed of the fifth lens with positive refractive power and the sixth lens with negative refractive power from the object plane side to the image plane side. The lens is cemented with the sixth lens; the third lens group is composed of the seventh lens with negative refractive power and the eighth lens with positive refractive power from the object plane side to the image plane side; the fourth lens group is from the object plane side to the image plane side It consists of a ninth lens with positive power and a tenth lens with negative power. Through the setting of the above-mentioned small number of lens groups, the miniaturization of the fixed-focus lens is realized, which facilitates the carrying of the drone, and also facilitates the installation of a wide-angle lens in the fixed-focus lens.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a fixed-focus lens, an image pickup device and an inspection drone. Background technique [0002] A fixed-focus lens refers to a lens with only one fixed focal length. Although it does not have a zoom function, a fixed-focus lens has faster focusing speed and stable image quality than a zoom lens. [0003] Fixed focus and zoom have their own advantages. For industrial inspection, when the object distance range is relatively certain, the demand for zoom is not so great. At this time, fixed focus lenses have their unique advantages. [0004] At present, the field of view of fixed-focus lenses for industrial inspections that is common on the market is often not large. How to find objects and locate objects in the inspection process has become a problem that needs to be solved, especially in the practical application of UAV inspections. , it often requires an additional wide-angle ...

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): G02B13/00
CPCG02B13/0015G02B13/006G02B13/0055
Inventor 袁浩生
Owner JIAXING ZHONGRUN OPTICAL TECH
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