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Sight distance detection automatic zooming optical system based on binocular imaging analysis

A technology for automatic detection and optical system, applied in the directions of optics, optical components, non-optical accessories, etc., it can solve the problems of inconvenient and inaccurate adjustment of the focal length of the lens, and achieve simple structure, improved comfort, and small occupied space. Effect

Inactive Publication Date: 2020-08-07
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the inconvenient and inaccurate technical problem of adjusting the optical focal length of the original lens, and provides a visual distance detection automatic zoom optical system based on binocular imaging analysis. Two methods are used to calculate the visual distance, so that the data can be corrected , improve the accuracy of the measurement results, adjust the change of lens focal power according to the measured visual distance data, adapt to the needs of the human eye in real time, and improve the comfort, and the whole system is placed on the frame, the structure is relatively simple, so Small space, easy to wear, does not affect daily work and life

Method used

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  • Sight distance detection automatic zooming optical system based on binocular imaging analysis
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  • Sight distance detection automatic zooming optical system based on binocular imaging analysis

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Embodiment

[0021] Embodiment: A kind of sight distance detection automatic zoom optical system based on binocular imaging analysis of this embodiment, such as figure 1 , figure 2 As shown, the frame 2 is included, and the frame 2 is provided with an Alvarez zoom system 5 , and the Alvarez zoom system 5 is installed at the lens mounting place of the frame 2 . The zoom system consists of two mirrors, and the zoom function is realized by moving the two mirrors perpendicular to the optical axis in opposite directions. Each lens consists of a plane and a freeform surface, and the freeform surface in the second lens is obtained by rotating the freeform surface in the first lens by 180°. When the two lenses are completely aligned, the overall effect is equivalent to a parallel glass plate; when the convex parts of the two lenses face each other, the overall effect is equivalent to a convex lens, converging the beam; when the concave parts of the two lenses face each other, the overall effect ...

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Abstract

The invention discloses a sight distance detection automatic zooming optical system based on binocular imaging analysis. The system comprises a glasses frame, an Alvarez zoom system is arranged on theglasses frame, a plurality of cameras are arranged on the glasses frame, and the cameras comprise a camera PIL and a camera PIR which are installed on the outer side of the glasses frame, and a camera PoL and a camera POR which are installed on the inner side of the glasses frame. The system adopts two modes to calculate the sight distance, the data can be corrected, the accuracy of the measurement result is improved, the focal power change of the lenses is adjusted according to the measured sight distance data, the requirements of human eyes are met in real time, the comfort degree is improved, the whole system is placed on the glasses frame, the structure is simple, the occupied space is small, wearing is convenient, and daily work and life are not affected.

Description

technical field [0001] The invention relates to the field of optical imaging, in particular to a visual distance detection automatic zoom optical system based on binocular imaging analysis. Background technique [0002] According to data, as the population aging phenomenon continues to intensify, the number of presbyopia patients has risen sharply. Choosing to wear vision correction glasses is the choice of many presbyopia patients. However, traditional vision correction glasses often only have single focus or bifocals. Since the optical power of the glasses cannot fully match that of the human eye, it is very inconvenient to use when switching from a far target to a near target. There is also a gradient multi-focal lens, although it solves the problem of blurred vision, due to design defects, it is easy to cause discomfort and dizziness to the wearer when using it. In view of the above situation, there are some variable focus glasses in the market at present, but manual ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/08G02C11/00
CPCG02C7/08G02C11/00
Inventor 侯昌伦任驿泽
Owner HANGZHOU DIANZI UNIV
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