Medical light source device and medical observation system

Patent metadata

Field	Value
Publication number	US-2018317758-A1
Application number	US-201715772971-A
Country	US
Kind code	A1
Filing date	Jan 11, 2017
Priority date	Jan 19, 2016
Publication date	Nov 8, 2018
Grant date	—

Abstract

[Object] To provide a medical light source device and a medical observation system capable of switching a light source while suppressing an increase in size and complication of a device.
[Solution] A medical light source device according to the present disclosure includes: a plurality of light sources; and a light source switching section that holds an end section of a light guide that transmits light, and is capable of disposing the end section on one of optical paths of light emitted by the plurality of light sources.

First claim

1 . A medical light source device comprising:
a plurality of light sources; and a light source switching section that holds an end section of a light guide that transmits light, and is capable of disposing the end section on one of optical paths of light emitted by the plurality of light sources.

2 . The medical light source device according to claim 1 , wherein the plurality of light sources include a main light source and an auxiliary light source.

3 . The medical light source device according to claim 2 , wherein the main light source and the auxiliary light source have substantially a same maximum luminance.

4 . The medical light source device according to claim 3 , wherein the main light source and the auxiliary light source each emit white light.

5 . The medical light source device according to claim 1 , further comprising
a collimator lens that makes light emitted by the light source into substantially parallel light, wherein the light source switching section includes a condenser lens that condenses the parallel light on the end section of the light guide.

6 . The medical light source device according to claim 2 , further comprising
a power supply section that supplies electric power to the plurality of light sources, wherein the main light source and the auxiliary light source have different power supply systems.

7 . The medical light source device according to claim 1 , further comprising
a heat sink that absorbs heat of the plurality of light sources.

8 . A medical observation system comprising:
an imaging device that captures an enlarged image of a minute area of an object and generates an imaging signal; a light guide that transmits illumination light to the imaging device; and a medical light source device including
a plurality of light sources that emit the illumination light, and
a light source switching section that holds an incident end of the light guide, and disposes the incident end on one of optical paths of the illumination light emitted by the plurality of light sources, thereby switching the light source of illumination light that enters the light guide.

Assignees

• Sony Olympus Medical Solutions Inc
• Sony Corp

Inventors

• Okada Naobumi
• Ozeki Motoki

Classifications

• H04N23/555

  for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes · CPC title

• H04N23/74

  by influencing the scene brightness using illuminating means · CPC title

• G02B21/0012

  Surgical microscopes (counterbalanced structures for surgical microscopes G02B7/001) · CPC title

• G02B21/36

  arranged for photographic purposes or projection purposes (G02B21/18 takes precedence){or digital imaging or video purposes including associated control and data processing arrangements (image data processing per se G06T)} · CPC title

• G02B23/26

  using light guides {(for illumination G02B23/2469)} · CPC title