LED projection lamp with adjustable light center distance

Abstract

The invention discloses an LED projection lamp with adjustable light center distance. The LED projection lamp with the adjustable light center distance comprises a projection lamp body, a bottom plateand a fixing ring; the projection lamp main body comprises a lens adjusting cylinder, lens frames, locking screws, a middle block, heat pipes, first fins, second fins, a heat dissipation frame and aprotective shell; the middle block is of a cylindrical structure made of a copper material; a plurality of groups of lamp beads distributed in a rectangular array are fixed to one group of end surfaces of the middle block in an adhered mode, and a group of threads are separately arranged on each of the two ends of an outer circle part of the middle block; five groups of heat pipes are arranged inthe surface, facing away from a lamp post, of the middle block in an inserting mode, and the five groups of the heat pipes are parallel to one another; the first fins are fixedly arranged at the two ends of the five groups of the heat pipes in a sleeving mode, and the second fins are fixedly arranged on the heat pipes which are located between the first fins on the two sides in a sleeving mode; and the bottom plate is of a horizontally placed circular plate-shaped structure, and an upright lower column perpendicular to the bottom plate is welded above the bottom plate. The LED projection lampwith the adjustable light center distance can adjust the light center distance of the projection lamp according to requirements, and is suitable for general popularization and use.

Description

technical field [0001] The invention belongs to the technical field of LED lamps, and in particular relates to an LED projection lamp with adjustable light center distance. Background technique [0002] LED is a solid-state semiconductor device that can convert electrical energy into visible light, and it can directly convert electricity into light. The heart of LED is the wafer of a semiconductor, and one end of wafer is attached on a bracket, and one end is negative pole, and the other end connects the positive pole of power supply, and whole wafer is encapsulated by epoxy resin. [0003] Existing LED floodlights mostly use single-group lenses or non-adjustable reflective lenses to condense light. The problem is that when the distance of the illuminated object changes, the size of the emitted light spot cannot be adjusted within a suitable range. The result is that the spot of the object that needs to be illuminated by concentrated light is too large to affect the observa...

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Problems solved by technology

[0003] Existing LED floodlights mostly use single-group lenses or non-adjustable reflective lenses to condense light. The problem is that when the distance of the illuminated object changes, the size of the emitted light spot cannot be adjusted within a suitable range. The result is that the spot of the object that needs to be illuminated by concentrated light is too large to affect the observation of details, and the spot that needs to be illuminated in a larger area is too small to meet the lighting requirements

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