Light source apparatus for endoscope, endoscope using the same and heat dissipation method
AssigneeOlympus Corporation
InventorsYuri Kigoshi, Yoshinori Tanaka
Life of this patent
Estimating the term…
Abstract
A light source apparatus for endoscope includes a light source, a collective lens, a light shielding member which shields at least a part of the light emitted from the light source, and allows light which is not shielded, to be transmitted as transmitted light, an optical fiber on which, the transmitted light transmitted through the light shielding member is incident, a holding member which includes a heat insulating member, and holds at least one of the light source, the collective lens, and the light shielding member by fixing at a respective position thereof, and a heat exhausting member which exhausts heat generated in the light shielding member to an outside of the holding member.
Claims19
A light source apparatus for endoscope comprising:
- a light source configured to emit light;
- a collective lens which focuses the light emitted from the light source;
- a light shielding member which shields at least a part of the light emitted from the light source, and allows light, which is not shielded, to be transmitted as transmitted light;
- an optical fiber on which, the transmitted light transmitted through the light shielding member is incident;
- a holding member which includes a heat insulating member, and holds at least one of the light source, the collective lens, and the light shielding member, by fixing at a respective position thereof;
- and
- a heat exhausting member which exhausts heat generated in the light shielding member to an outside of the holding member, wherein
- a thermal resistance value in a thermal path of the light shielding member is smaller than a thermal resistance value of the heat insulating member,
- a thermal resistance value in a thermal path of a connecting portion of the light shielding member and the heat exhausting member is smaller than the thermal resistance value of the heat insulating member, and
- a thermal resistance value in a thermal path of the heat exhausting member is smaller than the thermal resistance value of the heat insulating member.
A heat dissipation method which is a method of dissipating heat generated in a light shielding member which has shielded a part of light focused toward an incident end of an optical fiber by a collective lens, from the light emitted from alight source, the heat dissipation method comprising steps of:
- transferring heat to a heat exhausting member by a light shielding member;
- and
- exhausting heat to an outside of a holding member which holds at least one of the light source, the collective lens, and the light shielding member by fixing at a respective position thereof, by the heat exhausting member.
Dependencies are inferred from the claim text.