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Mobile phone using camera photosensitive chip to control flashlight

A flash and camera technology, applied in the field of information, can solve the problems of over-exposure of photos, insufficient light, over-exposure of photos, etc., and achieve the effect of reducing cost, good effect, and optimizing photo effect.

Active Publication Date: 2014-03-26
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the light is different during the day or night, if the flash is driven at a fixed brightness, it may lead to insufficient brightness of the flash or overexposure of the photo, which will affect the white balance of the camera and waste the power of the mobile terminal.
[0004] It can be seen that the existing solutions for the built-in camera of the mobile terminal generally do not include ambient light detection, that is, during the shooting process, no ambient light detection is performed. In this way, the disadvantage of this solution is: resulting in overexposure of the photo or exposure light insufficient
But the disadvantages of this solution are: due to the setting of a special ALS chip, the cost is increased accordingly, and the control is relatively complicated, and there is also a risk of delay in flash control

Method used

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  • Mobile phone using camera photosensitive chip to control flashlight
  • Mobile phone using camera photosensitive chip to control flashlight
  • Mobile phone using camera photosensitive chip to control flashlight

Examples

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Embodiment Construction

[0030] Various example embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which some example embodiments are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions are exaggerated for clarity. Like numbers refer to like components throughout. Also, in the following description of the present invention, specific descriptions of well-known functions and configurations incorporated herein are omitted for clarity and conciseness.

[0031] It will be understood that although the terms first, second, third etc. may be used herein to describe various elements, these elements should not be limited by ...

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PUM

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Abstract

The invention provides a camera flashlight control method. According to the method, a camera is arranged in a mobile terminal and comprises a CMOS (Complementary Metal Oxide Semiconductor) light-sensitive processor. The method comprises the following steps: the CMOS light-sensitive processor senses and measures the brightness of the ambient light and compares the sensed and measured brightness with a pre-arranged ambient light set value, and as a result, the flashlight can be controlled according to the comparison result.

Description

technical field [0001] The present invention relates to the field of information technology, and more specifically, the present invention relates to a method for controlling a flash light of a camera in a mobile terminal. Background technique [0002] Recently, with the rapid development of information technology, mobile terminals are more and more widely used. Examples of mobile terminals include various electronic devices such as mobile phones, personal digital assistants (PDAs), portable multimedia players (PMPs), portable game consoles, and tablet computers. Usually, manufacturers often equip at least one camera in the mobile terminal to provide the convenience of shooting anytime and anywhere. figure 1 A schematic diagram of the appearance of a mobile phone equipped with a rear camera is shown, and the rear camera can generally be configured as a camera with up to several million or more pixels. [0003] A flashlight is a supplementary light device, and a mobile termi...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235G03B15/05H04M1/725G03B30/00
Inventor 居同彬
Owner LENOVO (BEIJING) CO LTD
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