A high-efficiency and high-power led fiber optic light source

Abstract

The invention discloses a high efficiency large power LED fiber light source comprising an aluminium alloy cavity; the aluminium alloy cavity is a structure with large left end caliber and a small right end caliber; a radiation pedestal, a lens fixing cylinder, an acrylic non spherical lens and a full transparent Teflon sleeve pipe are arranged in sequence from left to right in the aluminium alloy cavity; the right end of the full transparent Teflon sleeve pipe is connected with a plastic fiber, and partial of a plastic fiber naked core inserts into the full transparent Teflon sleeve pipe; the full transparent Teflon sleeve pipe is arranged in the right end, with the small caliber, of the aluminium alloy cavity; a large power LED lamp bead and a cone lens are arranged in the lens fixing cylinder. End faces and side faces are simultaneously coupled so as to couple a large light spot into the plastic fiber with the small diameter, thus greatly improving LED light and plastic fiber coupling efficiency; the high efficiency large power LED fiber light source is small in size, convenient in dismounting, high in luminous energy utilization rate and optical power, and can be widely applied to illumination light source, fluorescence and radiation dose detection excitation light source fields.

Description

technical field [0001] The invention relates to a high-efficiency and high-power LED fiber optic light source, in particular to a high-efficiency LED fiber optic light source that can be widely used in the fields of illumination light source, excitation light source for fluorescence and radiation dose detection, and the like. Among them, high-efficiency and high-power LEDs are high-current LEDs with a rated current exceeding 20mA. Background technique [0002] Compared with other methods, led fiber optic light source has unique advantages such as low cost and long-distance photoelectric separation, so it has been widely used in various occasions and fields. For example, under normal lighting, due to the ultraviolet light in the lighting, it is easy to accelerate the aging of books and cultural relics. At the same time, it is easy to cause the danger of fire caused by electric sparks. The use of LED fiber optic light source lighting is safe and can achieve ideal artistic ef...

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Problems solved by technology

[0003] At present, the method of coupling LED light into optical fiber mostly adopts collimating lens, self-focusing lens, elliptical reflection bowl, etc. Due to the limitation of the characteristics of LED light source itself and the numerical aperture of optical fiber, the common problems are low coupling efficiency, large energy loss, and difficulty in improving brightness. The problem

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