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A method for auto-focusing moving head pattern computer lights

A technology of auto-focus and computer lights, which is applied in circuit layout, parts of lighting devices, semiconductor devices of light-emitting elements, etc., can solve the problems of cumbersome use and increased adjustment time, and reduce adjustment time and operation complexity. Effects that facilitate the scene switching process

Active Publication Date: 2017-11-28
GUANGZHOU YAJIANG PHOTOELECTRIC EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the particularity of the application environment of moving head pattern scanners, it is necessary to manually adjust the focus lens group every time the gobo wheel or aperture is switched, and when changing the size of the projected pattern, it is necessary to manually adjust the position of the zoom lens and adjust the focus at the same time The position of the mirror is very cumbersome to use, which greatly increases the artificial adjustment time

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  • A method for auto-focusing moving head pattern computer lights

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings of the specification.

[0016] A method of auto focusing for moving head pattern computer lights, such as figure 1 As shown, the optical system of the computer light includes a light source, an aperture, a first pattern disc, a second pattern disc, a third pattern disc, a focusing lens group, a zoom lens group and a light emitting lens in order according to the direction of the light path. The zoom range of the zoom lens group is 0~255 channels, and the focus range of the focus lens group is 0~255 channels. The zoom lens group and the focus lens group can be controlled through the DMX512 console. Adjust the positions of the zoom lens group and the focus lens group to obtain different zoom values ​​and focus values.

[0017] The automatic focusing method includes the following steps:

[0018] (1) Establish a focus value database corresponding to a projection distance of 4-20 me...

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Abstract

A method of automatic focusing for a patterned moving lamp comprises the following steps that firstly, corresponding focusing values of clear real images of all patterned discs and apertures on a zooming axis under different distance conditions are obtained through testing, and focusing values of projection distances from 4 m-20 m and the focusing values of a zooming magnitude two-dimensional space need to be tested according to actual application, so a database of a two-dimensional array is formed; secondly, a moving lamp control chip searches the database to call out a focusing value of a focusing lens corresponding to a current automatic focusing push rod in position according to the current projection patterned disc and pattern size push rod values, and the focusing lens changes position to form a clear real image projection after transmission through a transmission mechanism; thirdly, in the process of adjusting the patterns or the apertures of different sizes, the moving lamp control chip automatically switches the focusing values so that the projections can keep clear.

Description

Technical field [0001] The invention relates to the field of LED lighting, in particular to an automatic focusing method for a moving head pattern computer light. Background technique [0002] The moving head pattern computer light is composed of multi-layer pattern disk, aperture, focusing lens group, zoom lens, light output lens and other components. The focusing lens group and the zoom lens form a dynamic optical lens group, which is placed on the central axis of the optical lens group. The display pattern is projected from a distance through the optical lens group to form a clear real image. Due to the uncertainty of the application environment, moving head computer gobos need to project clear real images of different sizes at different distances. This requires adjusting the distance between the optical lens groups in the computer light and the distance between the optical lens group and the pattern disc and the aperture. Due to the particularity of the application environme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V14/06F21W131/105F21W131/406F21Y115/10
CPCF21V14/06F21V23/003F21W2131/105F21W2131/406
Inventor 陈志曼
Owner GUANGZHOU YAJIANG PHOTOELECTRIC EQUIP CO LTD