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Control circuit and control method for light-compensation intensity

A technology of a control circuit and a control method, which is applied in the electronic field, can solve the problems of too strong light, cannot be adjusted adaptively, and cannot achieve the effect of filling light, and achieves the effect of improving the effect of filling light and reducing power consumption.

Inactive Publication Date: 2016-09-28
SHANGHAI YUDE COMM TECH
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AI Technical Summary

Problems solved by technology

However, the existing mobile phone fill light can only emit light mechanically, and the intensity of the light emitted by it is certain. Even the more advanced dual-color temperature flash can only adjust the cold and warm dual lights according to the color temperature of the environment. The current is adaptively matched, and it cannot be adjusted according to the surrounding light environment
This makes users often encounter situations where the light is too strong or too weak when shooting, and cannot achieve a better fill light effect

Method used

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  • Control circuit and control method for light-compensation intensity
  • Control circuit and control method for light-compensation intensity
  • Control circuit and control method for light-compensation intensity

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solutions claimed in this application can also be realized.

[0020] The first embodiment of the present invention relates to a control circuit for supplementary light intensity. In this embodiment, when the supplementary light needs to be turned on, the illuminance value of the ambient light is obtained first to determine the intensity of the ambient light, and then the supplementary light intensity...

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Abstract

The invention relates to the electronic technical field, and discloses a control circuit for light-compensation intensity. The control circuit for the light-compensation intensity comprises a processor, a light ray sensor, an electronic switch, a light-compensation lamp and a current-limiting circuit, wherein the light ray sensor is used for sensing the light ray attribute of the ambient light and outputs the sensed light ray attribute to the processor; and the processor is used for obtaining the light-compensation intensity of the light-compensation lamp according to the light ray attribute of the ambient light sensed by the light ray sensor, and controls the current-limiting circuit to adjust the current value passing through the light-compensation lamp according to the light-compensation intensity when the electronic switch is controlled to lighten the light-compensation lamp. The invention also discloses a control method for the light-compensation intensity. Compared with the prior art, the embodiments of the invention have the following beneficial effects: when the light-compensation lamp is lightened, the current value passing through the light-compensation lamp can be adjusted according to the intensity of the ambient light, so that the light-compensation lamp can realize high-intensity light compensation in a high-light environment and low-intensity light compensation in a low-light environment; and therefore, the power consumption of the light-compensation lamp can be lowered, and the light-compensation effect can be improved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a control circuit and a control method for supplementary light intensity. Background technique [0002] As we all know, the fill light (also known as the flash) can illuminate the surrounding things in the dark environment and make up for the lack of light, thereby enhancing the shooting ability of the mobile phone in the low light environment. However, the existing mobile phone fill light can only emit light mechanically, and the intensity of the light emitted by it is certain. Even the more advanced dual-color temperature flash can only adjust the cold and warm dual lights according to the color temperature of the environment. The current is adaptively matched, and cannot be adjusted according to the surrounding light environment. This makes users often have situations where the light is too strong or too weak when shooting, failing to achieve a better fill light effect. ...

Claims

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Application Information

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IPC IPC(8): H05B37/02G03B15/05H04M1/02
CPCH04M1/026H04M1/0264G03B15/05H05B47/11Y02B20/40
Inventor 万振
Owner SHANGHAI YUDE COMM TECH
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