Multi-purpose flat plate lamp

Abstract

The invention discloses a multi-purpose flat plate lamp. The multi-purpose flat plate lamp comprises a lamp bead installment layer, a diffusion plate, a printed light-guiding plate and a reflective sheet, wherein the lamp bead installment layer, the diffusion plate, the printed light-guiding plate and the reflective sheet are sequentially arranged in an overlapped mode. The reflective sheet is attached to the bottom of the printed light-guiding plate, and optical membrane capable of ensuring that permeated delaying light becomes soft is overlapped between the diffusion plate and the printed light-guiding plate. Compared with the prior art, because the optical membrane is additionally arranged on the multi-purpose flat plate lamp on the basis of the structure of an ordinary flat plate lamp, luminance brightness of a light source is dropped, but the effective light distance is increased to ensure that light effect is guaranteed within the distance, and meanwhile color rendering indexes are increased. Furthermore, because a heat dissipation body is arranged on an aluminum frame of the multi-purpose flat plate lamp, service life of a power source is prolonged and light weakening of a light-emitting diode (LED) light bead is delayed.

Description

technical field [0001] The invention relates to the technical field of lighting fixtures, in particular to a multi-purpose flat panel lamp. Background technique [0002] In the technical field of lighting lamps and lanterns, most of the conventional flat panel lamp technologies are side-emitting, which is characterized by constant current power supply that cannot be dimmed or dimmed but has no memory function, and the brightness index of the light source cannot meet the required index required by the museum. If the brightness is too high, it will cause damage to the cultural relics in the museum, such as calligraphy, paintings, books, etc. At the same time, the display index of conventional flat panel lights is also relatively low, so they can only be used as general lighting fixtures, and cannot be used as lamps that require special light sources. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to prov...

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Problems solved by technology

[0002] In the technical field of lighting lamps and lanterns, most of the conventional flat panel lamp technologies are side-emitting, which is characterized by constant current power supply that cannot be dimmed or dimmed but has no memory function, and the brightness index of the light source cannot meet the required index required by the museum. If the brightness is too high, it will cause damage to the cultural relics in the museum, such as calligraphy and painting, books, etc. At the same time, the display index of conventional flat panel lights is also relatively low, so they can only be used as general lighting fixtures, and cannot be used as lamps that require special light sources.

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