Light source device and failure detection method for endoscope

Abstract

The invention discloses a light source device and a failure detection method for an endoscope. The device comprises at least two light sources, driving control units with the number thereof identical to that of the light sources, a light path synthesis unit, a lamp detecting unit and a system control unit. The method comprises the following steps: an optical signal from the light sources is received and converted into data indicating light intensity; and then the data is judged, if the data indicating light intensity is lower than a preset failure threshold value, alarming information is sentout. By applying the embodiment provided by the invention and adopting at least two groups of light source, spare light source is omitted; the cost is reduced because the structure is simple; moreover, the failure detection is performed, the simple structure is realized, the device and the method can be accepted by doctors and patients better, and the market prospect is excellent.

Description

technical field [0001] The invention relates to the technical field of light sources of endoscopes used in medical treatment, in particular to a light source device and a fault detection method for endoscopes. Background technique [0002] With the development of endoscopes (including ordinary endoscopes and electronic endoscopes) and the improvement of people's requirements for diagnosis, it is hoped that the endoscope light source device that provides illumination can have uniform and adjustable brightness, lower power consumption, and low cost. . Traditional endoscope light source devices all use a high-power halogen lamp or xenon lamp as the main light source, and a high-brightness light-emitting diode (LED) lamp as the backup light source. The main light source works at full power when it is turned on, and the luminous flux is adjusted by adjusting different apertures on the optical path, and then the brightness of the light is adjusted. [0003] At present, there is ...

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Problems solved by technology

[0004] Existing light source devices have one or another deficiency. For example, for the traditional method, because the main light source is fixed, the brightness is adjusted by adjusting the light path, which inevitably makes the equipment complicated and consumes a lot of power; the multi-channel LED Although the program control scheme is easy to operate, the rotation design of the light guide part is very complicated, so the cost is high, and the spectrum of the LED light is narrow, which cannot reach the range of visible light, which affects the richness of the captured image

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