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Imaging lens for vision aid

An imaging lens and vision aid technology, applied in the field of auxiliary reading, can solve the problems of high processing cost and complex assembly process, and achieve the effect of low processing difficulty, simple assembly process, and smooth movement

Active Publication Date: 2018-03-27
THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the imaging lens of the vision aid is used as the input module of the optical signal, which has a great impact on the final imaging quality. If only the traditional camera lens is used instead, not only the processing cost is high, but also the assembly process is complicated

Method used

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  • Imaging lens for vision aid
  • Imaging lens for vision aid
  • Imaging lens for vision aid

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] In the vision aid imaging lens in the present invention, wherein the zoom lens barrel and the upper part of the lens barrel refer to the side facing the subject, and the zoom lens barrel and the upper opening of the lens barrel refer to the opening facing the subject; the zoom lens barrel and the lens barrel The bottom refers to the side away from the subject, and the bottom opening of the zoom lens barrel and lens barrel refers to the opening on the side away from the subject.

[0028] Zoom principle: it is realized by adjusting the relative positions of the first zoom lens group and the second zoom lens group.

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 and 2 As shown, the vision aid imaging lens of the present invention comprises a zoom lens barrel 1, a lens barrel 2, a zoom ring 3, a compression ring 4, a first zoom lens group 5, a second zoom lens group 6, an annular mount...

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PUM

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Abstract

The invention discloses an imaging lens for a vision aid, which comprises a zoom lens barrel, a lens barrel, a zoom ring, a compression ring, a first zoom lens group and a second zoom lens group; The ring sleeve is arranged outside the lens barrel, the first zoom lens group is arranged in the zoom lens barrel, and the second zoom lens group is arranged at the bottom opening of the lens barrel; There is a guide groove, and the inner wall of the zoom ring is provided with a trapezoidal thread; one end of the pin rod passes through the guide groove and extends into the thread groove of the trapezoidal thread. The invention has the advantages of simple adjustment mode, stable movement, low processing difficulty, simple assembly process and high precision.

Description

technical field [0001] The invention relates to the field of reading aids, in particular to an imaging lens for a vision aid. Background technique [0002] Vision aids are auxiliary tools that help visually impaired people (including visually impaired people and the elderly) to read. At present, the technology adopted by the vision aid is based on a special image processor, which collects the image data captured by the digital lens module, applies digital image processing technology to process the image data, and then displays the processed image on the LCD screen in real time for users to read . [0003] Among them, the imaging lens of the vision aid is used as the input module of the optical signal, which has a great impact on the final imaging quality. If only the traditional camera lens is used instead, not only the processing cost is high, but also the assembly process is complicated. Contents of the invention [0004] The technical problem to be solved by the prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/02G02B7/04
CPCG02B7/04G02B27/021
Inventor 苏增识
Owner THE EYE HOSPITAL OF WENZHOU MEDICAL UNIV