Light source assembly for endoscope.

摘要

A light source assembly (1) for an endoscope (4) includes a heat-sensitive circuit breaker (11) which operates to turn a power supply circuit (12b) off to de-energize an illumination lamp (10), by detecting a rapid temperature rise in the assembly which may be caused whenever a cooling fan (9) is inoperable or ventilation holes (2,3) are blocked by adjacent objects or wall.