A dual-band optical molecular imaging light source device based on LED high-efficiency refrigeration

Abstract

The invention belongs to the technical field of endoscopes, and discloses a dual-band optical molecular image light source device based on LED high-efficiency refrigeration, which includes an optical base plate, a heat sink and a light beam deriving device are arranged on the optical base plate; vertically arranged on the inner wall of the heat sink There are two semiconductor refrigerators, one LED copper substrate is installed on the surface of the semiconductor refrigerator, a single LED light-emitting chip is arranged in the center of the LED copper substrate, and a collimation device is installed on the surface of the two LED copper substrates, and the optical substrate is fixed A high reflection mirror and a dichroic mirror are provided, and the high reflection mirror and the dichroic mirror are respectively arranged on the light outlets of the two collimation devices at an angle of 45°, and the high reflection mirror reflects the light emitted by the first LED light-emitting chip to the The dichroic mirror is used to combine and transmit the light reflected by the high reflection mirror and the light emitted by the second LED light-emitting chip to the light beam guiding device. The invention can realize high-power output and high-efficiency cooling dual-band light source output, and can be widely used in the field of optical molecular imaging.

Description

technical field [0001] The invention belongs to the technical field of endoscopes, and in particular relates to a high-power output, high-efficiency cooling LED-based dual-band optical molecular image light source device. Background technique [0002] With the demand and development of medical machinery technology, the detection methods for human internal organ lesions are also diversified, which are widely used in medical endoscopes (such as laparoscopes, cystoscopes, otolaryngoscopes, etc.) to observe the internal tissues of the human body. in the study of form. In the endoscope system, the endoscope light source is used as a high-brightness lighting device, which guides the auxiliary light into the dark environment inside the human body, and determines the size and position of the lesion through video and images, which deeply promotes the precise treatment of small lesions in clinical medicine and Development of diagnostic techniques. Among them, the LED (Light Emitting...

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Problems solved by technology

[0004] In the above scheme, the optical path design is complex, the fiber coupling efficiency is relatively low, and the loss is large. At the same time, the high-power power supply and the loss caused by the electro-optical conversion of the diode itself make the light source system unable to efficiently dissipate heat under long-term working conditions, and accelerate the LED chip light. decay, reduce LED life

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