Endoscope cold light source output light color stabilization method and system based on color coordinates
By selecting a reference LED in the endoscope's cold light source, measuring and recording the current ratio data, and establishing a mapping relationship, the problem of color distortion caused by brightness adjustment was solved, ensuring the stability of the output light color and improving the accuracy of pathological diagnosis.
CN121888424BActive Publication Date: 2026-05-26HANGZHOU LINGMOU MEDICAL TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU LINGMOU MEDICAL TECH CO LTD
- Filing Date
- 2026-03-18
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
When adjusting the brightness of existing endoscopic cold light sources, the different brightness change rates of LEDs of different wavelengths lead to color distortion of the output light, affecting the accurate judgment of the color characteristics of lesions.
Method used
By selecting a reference LED, measuring and recording the current ratio data that keeps the color coordinates of the synthesized light constant under different reference drive currents, a current mapping relationship is established to ensure the stability of the output light color.
Benefits of technology
It achieves stable output light color of endoscope cold light source, eliminates color difference caused by brightness adjustment, and improves the accuracy of pathological diagnosis.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121888424B_ABST
Abstract
This application discloses a method for stabilizing the output light color of an endoscopic cold light source based on chromatic coordinates, relating to the field of medical optical instrument technology. The method includes: selecting a reference LED and setting a reference driving current for it; adjusting the driving currents of other LEDs and acquiring the spectrum of the output light synthesized from multiple LEDs in real time; calculating the current chromatic coordinates of the output light; recording a set of current ratio data when the current chromatic coordinates match the target chromatic coordinates; changing the value of the reference driving current to obtain multiple sets of current ratio data and establishing a mapping relationship; and ensuring that the chromatic coordinates of the output light remain consistent with the target chromatic coordinates in subsequent operations based on the mapping relationship. This application solves the technical problem of output light color distortion caused by the electro-optical characteristics of multiple LEDs in existing endoscopic cold light sources, achieving stable output light color of the endoscopic cold light source and thus ensuring diagnostic accuracy.
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