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

Prime lens

A fixed-focus lens and lens technology, applied in the field of fixed-focus lenses, can solve the problems of inability to achieve lightweight and cost reduction, and achieve the effects of optimal optical imaging quality, large field of view, and cost reduction.

Active Publication Date: 2011-05-04
YOUNG OPTICS
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This lens has a large number of glass elements, which cannot achieve the purpose of reducing weight and 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
  • Prime lens
  • Prime lens
  • Prime lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

[0036] figure 1 It is a schematic structural diagram of a fixed-focus lens according to an embodiment of the present invention. Please refer to figure 1 , the fixed-focus lens 100 of this embodiment is suitable to be disposed between an enlargement side and a reduction side. In this embodiment, the fixed-focus lens 100 is suitable for being configured in a projection device (not shown) as a projection lens of the projection device. In addition, the fixed-focus lens 100 is suitable for projecting...

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 prime lens. The prime lens consists of a first lens group, a second lens group and a third lens group which are arranged in turn from an amplified side to a reduced side, wherein the first lens group has a plus diopter and comprises a first lens and a second lens which are arranged in turn from the amplified side to the reduced side, and the diopters of the first lens and the second lens are minus and plus respectively; the second lens group has a plus diopter and comprises a third lens, a fourth lens, and a fifth lens which are arranged in turn from the amplified side to the reduced side, and the diopters of the third lens, the fourth lens and the fifth lens are plus, minus and plus in turn; and the third lens group has a plus diopter and comprises a sixth lens, and the diopter of the sixth lens is plus. Due to the design, the prime lens can realize higher imaging quality, larger view angles and smaller telecentric angles.

Description

【Technical field】 [0001] The present invention relates to a lens, and in particular to a fixed-focus lens. 【Background technique】 [0002] Projection lenses pose many challenges to optical designers. A good projection lens may have high-quality imaging, low distortion aberration, high resolution, high contrast and uniform screen illumination. In addition, in order to achieve the effect of projecting a large image over a short distance, the projection lens may have a large field of view (FOV) and less distortion. In order to increase the light efficiency and the illuminance uniformity of the projection screen, the maximum angle of the chief ray on the reduction side of the projection lens relative to the optical axis (that is, the telecentric angle, English translation telecentric angle) is designed to be smaller, so that the principal ray and the optical axis close to parallel. [0003] The above design requirements will interfere with each other, thus increasing the diff...

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): G02B13/00G02B13/18
Inventor 王国权赖庆隆
Owner YOUNG OPTICS
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