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Stage projection lamp having dual-color wheel system

A projection lamp and two-color wheel technology, applied in the field of stage lighting, can solve the problems that it is difficult to meet the needs of stage lighting effects, and the light output is difficult to achieve, so as to achieve the effect of enhancing light efficiency

Pending Publication Date: 2018-09-04
GUANGZHOU HAOYANG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the light output is difficult to reach more than 5000LM, and it is difficult to meet the needs of stage lighting effects in special occasions.

Method used

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  • Stage projection lamp having dual-color wheel system
  • Stage projection lamp having dual-color wheel system
  • Stage projection lamp having dual-color wheel system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the stage projection lamp with a two-color wheel system includes a light source 1 and a converging component 2, a light splitting component 3, a trimming component 4, a catadioptric component 5, a prism system 6, a digital micromirror element 7 and a projection The lens 8, the converging component 2 is used to converge the light emitted by the light source into parallel light, the light splitting component is used to periodically filter the RBG three primary colors, the trimming component 4 is used to make the light uniform, and the reflective The refraction assembly 5 is used for the catadioptric refraction of light, and the prism system 6 injects light into the digital micromirror element 7, and the digital micromirror element 7 is used to provide an image source, reflects the light into effective light and invalid light, and moves toward Different directions are reflected into the prism system 6, and after total reflection by the prism syst...

Embodiment 2

[0028] The difference between Embodiment 2 and Embodiment 1 is that the light source 1 is a white LED.

[0029]When the program instruction requires the normal mode, the light emitted by the white LED light source 1 is converged into parallel light by the converging component 2, the first color wheel 31 rotates at a high speed driven by its motor, and the second color wheel 32 is in the white channel and is still or After being removed, different monochromatic lights are sequentially separated, uniformized by the trimming component 4, continuously refracted and reflected by the catadioptric component 5, and then projected into the digital micromirror element 7 by the action of the prism system 6, and the digital micromirror element 7. Reflect light into effective light and ineffective light. The effective light loaded with image information is reflected by the prism system 6 and projected onto the projection lens 8. The projection lens 8 enlarges the image and projects it onto ...

Embodiment 3

[0033] The difference between Embodiment 3 and Embodiment 1 and Embodiment 2 is that the second color wheel can also be a combination of several non-white filters. At this time, in order to realize the normal projection mode, the second color wheel must be moved In addition to the optical path.

[0034] When the program command requires the normal mode, the light emitted by the light source 1 is converged into parallel light by the converging component 2, the first color wheel 31 rotates at a high speed under the drive of its motor, the second color wheel 32 is removed, and the lights are separated sequentially. Different monochromatic light, after being homogenized by the trimming component 4, is continuously refracted and reflected by the catadioptric component 5, and projected into the digital micromirror element 7 after being acted by the prism system 6, and the digital micromirror element 7 reflects the light into effective light And invalid light, effective light loaded ...

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PUM

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Abstract

The invention discloses a stage projection lamp having a dual-color wheel system. The stage projection lamp is composed of a convergence assembly, a light splitting assembly, a trimming assembly, a reflection and refraction assembly, a prism system, a digital micromirror component and a projection lens that are arranged successively along a light source propagation direction. The convergence component is used for converging light emitted by the light source into parallel light; the light splitting assembly is used for filtering RBG three-primary-color light periodically; the trimming assemblyis used for realizing light homogenization; the reflection and refraction assembly is used for light reflection and refraction; the digital micromirror component is used for reflecting light to a prism system and projecting light in the projection lens, and carrying out imaging under the effect of the projection lens; and the projection lens is sued for enlarging the image and projecting the processed image on a target object. The light splitting assembly is a dual-color wheel system and consists of a first color wheel and a second color wheel that work independently, so that the switching ofthe projection modes is realized. The light output quantity in a special mode can reach 55% to 60% of original effective light to enable the luminous efficacy to be 2 to 2.5 times of the ordinary-projection-mode projector, so that the luminous efficacy is enhanced significantly.

Description

technical field [0001] The invention relates to the technical field of stage lighting, and more particularly, to a stage image projection lamp with a two-color wheel system. Background technique [0002] DLP projector, that is, Digital Light Processing (Digital Light Processing) projector, is a kind of projection technology based on DMD chip as imaging device, which irradiates the imaging device with high-power light source, and realizes projected image with reflected light. That is to say, this technology first processes the image signal through digital processing, and then projects the light out. DMD chip, Digital Micromirror Device (Digital Micromirror Device), is a CMOS silicon substrate composed of a microlens array. Each microlens represents a pixel, and the electrical signal drives the microlens to rotate to control the gray value of each pixel. The microlens is driven by the electrical signal to form an image, and then reflects the light source and then projects a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10G03B21/20
CPCG02B27/1026G03B21/20
Inventor 蒋伟楷其他发明人请求不公开姓名
Owner GUANGZHOU HAOYANG ELECTRONICS CO LTD
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