Device for achieving narrow-band or broad-band spectrum combined lighting and method thereof

Abstract

The invention relates to a device for achieving narrow-band or broad-band spectrum combined lighting and a method thereof. The device comprises a broad-band light source, a near infrared light source and a narrow-band light source, wherein a first light combination device is arranged on a light path channel emitted by the narrow-band light source, and the first light combination device converges a light beam emitted by the narrow-band light source into a light path; a light switch device is arranged at a junction between the broad-band light source and a light combination channel of the first light combination device; a second light combination device, a coupling output device and an optical fiber are sequentially arranged on a light path channel emitted by the light switch device; or the coupling output device, the second light combination device and the optical fiber are sequentially arranged on the light path channel emitted by the light switch device; the light path channel of the near-infrared light source intersects with the light path channel emitted by the light switch device on the second light combination device or the coupling output device. The device provides varieties of different lighting methods and solves the problems that existing narrow-band lighting is low in efficiency and inflexible and cannot meet the requirement on flexibly switching narrow-band lighting and broad-band lighting.

Description

technical field [0001] The invention specifically relates to a device and method suitable for realizing narrow-band or broadband spectral compound illumination in the medical field, and belongs to the field of optical technology. Background technique [0002] The depth of penetration of narrow-band light waves into the organ mucosa is different. For example, the penetration depth of short-wave light is shallow, and the penetration depth of long-wave light is deep, reaching the submucosa. Because the optical properties of blood in the mucosa absorb different wavelengths of light differently, using light waves that are difficult to diffuse and can be absorbed by blood can increase the contrast and clarity of the mucosal epithelium and submucosal blood vessels. Narrow-band imaging uses narrow-band light wave illumination, which can accurately observe the epithelial morphology and better help endoscopists distinguish between normal and diseased tissues in different positions, ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a device and method for realizing narrow-band or broadband spectral composite lighting that provide multiple different lighting modes, so as to solve the inefficiency and inflexibility of the original narrow-band lighting, which cannot meet the flexible switching requirements of narrow-band and broadband lighting. problems to overcome the deficiencies of existing technologies

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