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A color wheel with filter device and its stage lighting system

A light filter device and stage lighting technology, which can be used in parts of lighting devices, lighting devices, and devices used in theaters and circuses, etc. It can solve the problems of destroying the integrity of the light beam, splitting the light beam, and limited installation positions of the color wheel. , to achieve the effect of rich colors

Active Publication Date: 2019-02-19
GUANGZHOU HAOYANG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this scheme, the number of colors that the stage light system can obtain at the same time is the number of optical filters, that is, one optical filter obtains one color, two optical filters correspond to two colors..., and the color wheel The installation position is very limited, resulting in a very limited number of beam colors, and this solution makes the optical filter have certain splicing gaps or occluders at its splicing, which will destroy the integrity of the projected beam, that is, there is beam splitting defect

Method used

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  • A color wheel with filter device and its stage lighting system
  • A color wheel with filter device and its stage lighting system
  • A color wheel with filter device and its stage lighting system

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Experimental program
Comparison scheme
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Embodiment 1

[0034] Such as Figure 2 to Figure 4 As shown, a color wheel with a filter device includes a filter device and a color wheel, and the filter device is composed of a first optical filter and a second optical filter of different wavelength bands, the first optical filter and the The second optical filter overlaps or partially overlaps in the direction of the optical axis, and the optical filters in the overlapped part overlap in spectrum.

[0035] The filters of different bands mentioned in this patent mean that the bandwidth and wavelength of the transmittance curve of the filter are inconsistent, such as Figure 4 M and C shown in.

[0036] The existence of an intersection on the spectrum in this patent refers to the existence of an intersection between the transmittance curve of the filter and the wavelength forming the included area, such as Figure 4 The intersection area M+C formed by M and C shown in .

[0037] The partial overlap in the direction of the optical axis m...

Embodiment 2

[0043] Such as Figure 5 As shown, this embodiment is improved on the basis of Embodiment 1. The filter device described in this embodiment is also composed of a first optical filter and a second optical filter of different wavelength bands. The first optical filter and the second optical filter The two optical filters are vertically intersected in the direction of the optical axis. Both the first optical filter and the second optical filter are optical glass sheets that have been optically coated on the entire area, and are filters of a single color. For example, the light of the first optical filter passes through its coating area and appears Single color M, the light of the second optical filter presents a single color C after passing through its coating area

[0044] After two optical filters of different wavelength bands are partially crossed and overlapped in the direction of the optical axis, the color distribution effect produced by them is as follows: Figure 6 As s...

Embodiment 3

[0046] Such as Figure 7As mentioned above, this embodiment is improved on the basis of Embodiment 2. This embodiment is composed of the first optical filter, the second optical filter and the third optical filter of different wave bands, and the three filters are arranged in sequence from end to end Composed of cloth, in the direction of the optical axis, the first and last parts of the three filters overlap each other.

[0047] In this embodiment, the first optical filter, the second optical filter, and the third optical filter are filters of three different colors, and the light of the first optical filter presents a single color M after passing through its coating area. The light from the second optical filter presents a single color C after passing through its coating area, and the light from the third optical filter presents a single color Y after passing through its coating area, and there is a spectral intersection between the three filters. After overlapping, in addit...

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Abstract

The invention relates to a novel light filtering device. The device is composed of at least two optical filters, wherein the optical filters coincide or partially coincide in the direction of the optical axis, and the optical filters which coincide or partially coincide intersect in the spectrum. The device is simple in structure and convenient to use. Not only can original colors of the optical filters be obtained, but also mixed colors between the optical filters can be obtained.

Description

technical field [0001] The invention relates to the technical field of stage lamps, in particular to a color wheel with a filter device and a stage lamp system thereof. Background technique [0002] In the traditional technical situation, the light filter device used in the stage light system can only be moved into a single optical filter to change the color of the stage light, so the color effect of the stage light is too monotonous. With the development of technology, in order to meet the colorful effects of stage performances, such as figure 1 As shown, the optical filters of different wavelength bands are usually spliced ​​together in the direction perpendicular to the optical axis, and then fixed on the color wheel. Under this scheme, the number of colors that the stage light system can obtain at the same time is the number of optical filters, that is, one optical filter obtains one color, two optical filters correspond to two colors..., and the color wheel The instal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V9/40F21S10/02F21W131/406F21W131/105
CPCF21S10/026F21W2131/105F21W2131/406
Inventor 蒋伟楷
Owner GUANGZHOU HAOYANG ELECTRONICS CO LTD