Supercharge Your Innovation With Domain-Expert AI Agents!

Camera lens

A photographic lens and lens technology, which is applied in the field of photographic lenses, can solve the problems of miniaturization difficulty, difficulty, and long total length of the lens, and achieve the effect of shortening the total length and improving performance

Active Publication Date: 2013-03-13
LARGAN PRECISION
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as the number of lenses increases, the total length of the lens will become longer, and it will be difficult to achieve miniaturization; in addition, in order to achieve a wide field of view (wide field of view), it is necessary to make the main lens It becomes very difficult for the light and the optical axis to be close to parallel, and to have both miniaturization and high performance at the same time.

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
  • Camera lens
  • Camera lens
  • Camera lens

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0088] Please refer to the first embodiment of the present invention Figure 1A , for the aberration curve of the first embodiment, please refer to Figure 1B . The photographic lens of the first embodiment is mainly composed of five lenses, which include sequentially from the object side to the image side:

[0089] A first lens 110 with positive refractive power, its object-side surface 111 and image-side surface 112 are both convex, and its material is plastic, and the object-side surface 111 and image-side surface 112 of the first lens 110 are both aspherical;

[0090] A second lens 120 with negative refractive power, its object-side surface 121 is concave and image-side surface 122 is convex, and its material is plastic. The object-side surface 121 and image-side surface 122 of the second lens 120 are both aspherical ;

[0091] A third lens 130 with positive refractive power, its object side surface 131 is concave and image side surface 132 is convex, its material is pla...

no. 2 example

[0120] Please refer to the second embodiment of the present invention Figure 2A , for the aberration curve of the second embodiment, please refer to Figure 2B . The photographic lens of the second embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0121] A first lens 210 with positive refractive power, its object-side surface 211 and image-side surface 212 are both convex, and its material is plastic, and the object-side surface 211 and image-side surface 212 of the first lens 210 are both aspherical;

[0122] A second lens 220 with negative refractive power, its object-side surface 221 is concave and image-side surface 222 is convex, and its material is plastic. The object-side surface 221 and image-side surface 222 of the second lens 220 are both aspherical ;

[0123] A third lens 230 with positive refractive power, its object-side surface 231 is concave and image-side surface 232 is convex, and its materia...

no. 3 example

[0146] Please refer to the third embodiment of the present invention Figure 3A , for the aberration curve of the third embodiment, please refer to Figure 3B . The photographic lens of the third embodiment is mainly composed of five lenses, which sequentially include from the object side to the image side:

[0147] A first lens 310 with positive refractive power, its object-side surface 311 and image-side surface 312 are both convex, and its material is plastic, and the object-side surface 311 and image-side surface 312 of the first lens 310 are both aspherical;

[0148] A second lens 320 with negative refractive power, its object-side surface 321 is concave and image-side surface 322 is convex, and its material is plastic. The object-side surface 321 and image-side surface 322 of the second lens 320 are both aspherical ;

[0149] A third lens 330 with positive refractive power, its object side surface 331 is concave and image side surface 332 is convex, its material is pl...

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 camera lens which sequentially comprises a first lens with the positive refracting power, a second lens with the nagetive refracting power, a third lens with the positive refracting power, a fourth lens with the nagetive refracting power, a fifth lens with the positive refracting power and an aperture arranged between a photographed object and the first lens from the object side to the image side, wherein the object side surface of the first lens is a convex surface, the object side surface of the second lens is a concave surface, the image side of the second lens is a convex surface, the object side surface of third lens is a concave surface, and the image side of the third lens is a convex surface. By making use of a configuration mode of the lens group, the invention can efficiently shorten the total length of a camera lens, has the characteristics of a wide field angle and can enhance the performance of the camera lens.

Description

technical field [0001] The invention relates to a imaging lens (Imaging Lens Assembly), which is suitable for mobile phone cameras or digital cameras, etc., and in particular relates to a miniaturized imaging lens equipped with a solid-state electronic photosensitive element. Background technique [0002] In recent years, the pixel size of photosensitive elements such as Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor (CMOS) is progressing toward miniaturization and high pixel size. Therefore, the resolution requirements for photographic lenses are also increasing day by day; in addition, when the angle incident on the photosensitive element is required to be closer to parallel to the optical axis, the number of lenses of the photographic lens tends to increase. This type of patent Document examples such as Japanese Patent Laid-Open No. 2007-264180. [0003] However, as the number of lenses increases, the total length of the lens will become longer, a...

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): G02B13/00G02B13/18H04N5/225
Inventor 野田小百合
Owner LARGAN PRECISION
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