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Double-light-path projection display lighting device

A technology of display lighting and dual light paths, which is applied in the direction of lighting devices, fixed lighting devices, and light guides of lighting devices. The effect of the dark area in the center of the light spot

Pending Publication Date: 2022-03-25
GUANGZHOU DASEN LIGHTING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the background light of this kind of spectator light generally has the following problems: if the sub-light source is arranged on the surface of the lamp head, there will be defects such as uneven color mixing of the projected light spot of the sub-light source and too obvious bright spots of the lamp bead; Plane, due to the large difference in the number and power of the main light source and sub-light source, there will be a problem that the heat dissipation structure at the bottom of the lamp panel and the electronic solution are likely to interfere with each other, and at the same time, there will be a dark area in the middle of the light spot formed by the sub-light source, resulting in the brightness of the spot Obvious non-uniform defects

Method used

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  • Double-light-path projection display lighting device
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  • Double-light-path projection display lighting device

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Embodiment Construction

[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention. rather than all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0028] In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an ...

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PUM

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Abstract

A double-light-path projection display lighting device is characterized by comprising a single main light source, a plurality of identical sub light sources and a total reflection light guide plate. The main light source emits light vertically, the sub light sources emit light laterally, and the light emitting directions of the main light source and the sub light sources are perpendicular to each other; the total reflection light guide plate is located above the main light source and is perpendicular to the main optical axis. And the plurality of sub light sources are uniformly arranged around at least one side of the total reflection light guide plate at intervals.

Description

technical field [0001] The invention relates to the field of stage and landscape lamps, in particular to a dual-light-path projection display lighting device. Background technique [0002] At present, the spectator lights used in professional interpretation lamps and professional stage art design generally use high-power COB as the main light source, and at the same time, there are small-power colored LEDs distributed around the main light source or the outer ring of the lamp head as sub-light sources. When the main light source is used, the light is required to be soft. Glare, high light efficiency, and high color reproduction can meet the requirements of the scene environment of various events and the visual experience of characters. The application of the backlight prevents the dark field environment after the main light source is turned off, so that the light emitting surface of the lamp head becomes a display lamp body that can be mixed with any color, which greatly enr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V8/00F21Y115/10
CPCF21S8/00F21V2200/20F21Y2115/10
Inventor 薛金山
Owner GUANGZHOU DASEN LIGHTING ELECTRONICS