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Illumination light source improvement device

A lighting source, point source technology, applied in optics, medical science, instruments, etc., can solve the problem of uneven brightness of the lighting source

Inactive Publication Date: 2020-03-27
SHENZHEN SHENGDA TONGZE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose an improved device for illuminating light sources, which is applied to fundus cameras and aims to solve the problem of uneven brightness of the illuminating light sources of existing fundus cameras

Method used

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses an illumination light source improvement device which comprises an illumination light source device and a light source conversion device. The illumination light source device comprises at least one point light source, and the light source conversion device forms an optical conversion light path for converting the point light source into an area light source so as to converta large-angle scattered light beam emitted by the point light source into a relatively uniform area light source light beam, so that the problem of non-uniform brightness distribution of the illumination light source of the fundus camera is solved.

Description

technical field [0001] The invention relates to the field of illumination technology, in particular to an illumination light source improvement device. Background technique [0002] The lighting source on the fundus camera is used as a specific lighting source. The output lighting light should have concentrated energy, uniform brightness, and light divergence angle matching with the optical system. However, the lighting source of the existing fundus camera generally uses a xenon lamp or LED Lamps, xenon lamps and LED lamps belong to point light sources, and their light energy distribution is Lambertian radiation distribution, that is, the middle brightness is high, the edge brightness is low, and the illumination light distribution is uneven. The light beam emitted by the illumination source directly enters the optical system, which may easily cause local over-bright or over-dark areas on the fundus imaging image, affect the imaging quality, and make the imaging image unable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B15/02G03B15/06A61B3/00A61B3/12
CPCG03B15/02G03B15/06A61B3/12A61B3/0008
Inventor 黄叶权陈振华冬雪川张劲松
Owner SHENZHEN SHENGDA TONGZE TECH CO LTD