Dual-band optical molecular imaging light source apparatus based on efficient Light Emitting Diode (LED) refrigeration

Abstract

The invention belongs to the technical field of endoscopes, and discloses a dual-band optical molecular imaging light source apparatus based on efficient Light Emitting Diode (LED) refrigeration. Thedual-band optical molecular imaging light source apparatus based on the efficient LED refrigeration comprises an optical bottom plate; a cooling fin and a light beam exporting device are arranged on the optical bottom plate; two semiconductor coolers are vertically arranged on an inner side wall of the cooling fin; one LED copper substrate is provided on a surface of each of the semiconductor coolers; single LED light-emitting chips are arranged at centers of the LED copper substrates; one collimating device is respectively arranged on the surface of each of the two LED copper substrates; a high-reflectivity mirror and a dichroic mirror are fixedly arranged on the optical bottom plate; the high-reflectivity mirror and the dichroic mirror are respectively arranged, with an angle of 45 degrees, at light outlets of the two collimating devices; the high-reflectivity mirror reflects light from the first light-emitting chip to the dichroic mirror; and the dichroic mirror is used for superposing the light from the high-reflectivity mirror on light from the second light-emitting chip, and transmitting the superposed lights to the light beam exporting device. The dual-band optical molecularimaging light source apparatus based on the efficient LED refrigeration is capable of realizing dual-band light source output with high power output and highly efficient refrigeration; and thus, thedual-band optical molecular imaging light source apparatus can be widely applied 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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