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Method and device for accurately adjusting color temperature of photographic lamp

A photography light and color temperature technology, which is applied to lighting devices, lamp circuit layout, light source, etc., can solve the problem that the color temperature cannot be adjusted accurately, and achieve the effect of accurate color temperature adjustment

Active Publication Date: 2019-12-31
常州美图摄影器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, usually the displayed color temperature value is quite different from the measured color temperature value, and the deviation is often greater than ±300K, so it is impossible to accurately adjust the color temperature

Method used

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  • Method and device for accurately adjusting color temperature of photographic lamp
  • Method and device for accurately adjusting color temperature of photographic lamp
  • Method and device for accurately adjusting color temperature of photographic lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 It is a flow chart of the method for accurately adjusting the color temperature of the photographic light of the present invention;

[0042] like figure 1 As shown, this embodiment provides a method for precisely adjusting the color temperature of a photography light, including:

[0043] Step S1, setting the initial target power, initial target color temperature and initial light mixing ratio;

[0044] Step S2, sending the corresponding light mixing ratio to the lighting equipment;

[0045] Step S3, obtaining the actual color temperature according to the color temperature feedback data of the lighting equipment;

[0046] Step S4, judge whether the actual color temperature is within the error range, if not within the temperature difference range, perform incremental learning of the light mixing ratio coefficient, and calculate the light mixing ratio of the target color temperature, return to step S2; if within the temperature difference range, then Go to ste...

Embodiment 2

[0059] figure 2 It is a schematic diagram of the device for precisely adjusting the color temperature of the photographic light of the present invention.

[0060] like figure 2 As shown, on the basis of Embodiment 1, this embodiment provides a device for accurately adjusting the color temperature of a photographic lamp, including: a controller 2, a lamp 3, and a photometer 1; the lamp 3, the photometer 1 Both are electrically connected to the controller 2; the controller 2 is suitable for recording the data of the theoretical light mixing ratio of the target color temperature obtained by the lamp 3, and controlling the photometer 1 to obtain the actual color temperature value, that is, color temperature calibration. The automation of the dimming process can be realized by the controller 1 .

[0061] Specifically, the controller 2 sets the initial target power, the initial target color temperature, and the initial mixing ratio, and sends the theoretical mixing ratio of the ...

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Abstract

The invention relates to a method and a device for accurately adjusting color temperature of a photographic lamp. The method comprises steps of setting the initial target power, the target color temperature and the light mixing proportion, sending the corresponding light mixing proportion to the lighting equipment, acquiring the actual color temperature, if the actual color temperature is not within the temperature difference range, performing incremental learning of a light mixing ratio coefficient, and calculating the light mixing ratio of the target color temperature and sending data to thelighting equipment, if the actual color temperature is within the temperature difference range, judging whether the target color temperature is the lowest color temperature or not, if the target color temperature is higher than the lowest color temperature, reducing the target color temperature to a preset value, calculating a light mixing proportion of the target color temperature, and sending the light mixing proportion to the lighting equipment, if the target color temperature is the lowest color temperature, judging whether the target power is a lowest power threshold value or not, if thetarget power is higher than the lowest power threshold value, reducing the target power to not exceed the lowest power threshold value, setting the target color temperature as the initial target color temperature, calculating a light mixing proportion of the target color temperature, and sending the light mixing proportion to the lighting equipment, and if the target power is within the minimum power threshold range, ending calibration.

Description

technical field [0001] The invention specifically relates to a method and a device for precisely adjusting the color temperature of a photographic lamp. Background technique [0002] Photographic lights have relatively high requirements on color temperature, and usually use two kinds of high and low color temperature lamp beads, and achieve the dimming effect through the proportion of each in the power. However, the usual practice in the market is to control the two ends of the color temperature, the common ones are 3200K and 5600K, and there is usually no control in the process of adjusting the color temperature change. [0003] Since more and more products now have LCD screens, when adjusting the color temperature, there will be a clear display. However, there is a huge difference between the displayed color temperature value and the measured color temperature value, and the deviation is often greater than ±300K, so it is impossible to accurately adjust the color temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 徐李丹闻忠
Owner 常州美图摄影器材有限公司
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