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flash device

A technology of flashlight device and light source, which is applied in the direction of lighting device, electric lamp circuit layout, optics, etc., can solve the problem that the overexposure cannot be effectively improved, and achieve the effect of improving the overexposure problem

Inactive Publication Date: 2016-08-03
ALTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although controlling the energy output of the flash in this way can solve the problem of overexposure caused by the distance factor of the object being photographed, it still cannot effectively improve the overexposure situation for objects with high reflectivity

Method used

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Examples

Experimental program
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Embodiment Construction

[0049] image 3 A schematic diagram of a flashlight device according to an embodiment of the present invention is shown. Please refer to image 3 The flash device 300 includes a light diffusing element 301 , a light diffusing element driving unit 302 , a light source 311 and a light source driving unit 312 . Wherein the light diffusing element driving unit 302 is coupled to the light diffusing element 301, receives a set of voltage information S303, the voltage information S303 indicates the driving voltage S304 required by the light diffusing element 301, and the light diffusing element driving unit 302 generates the driving voltage S304, and applied to the light diffusing element 301 according to a certain control sequence. The light source driving unit 312 is coupled to the light source 311 and receives a trigger signal S313 to adjust the time for the light source 311 to generate a flash or to adjust the intensity of the flash.

[0050] Wherein, the light diffusion eleme...

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PUM

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Abstract

The invention provides a flashlight device, which includes a light source, a light diffusion element and a light diffusion element driving unit. The light-diffusing element driving unit provides the driving voltage required to drive the light-diffusing element according to a voltage information, wherein the voltage information is determined according to an original image without light source supplementary light and a pre-flash image with light source supplementary light.

Description

technical field [0001] The present invention relates to a flash device, and more particularly to a flash device capable of improving the overexposure problem. Background technique [0002] Generally speaking, whether it is a digital camera or a film camera, a built-in flash is usually provided to facilitate users to supplement light in different environments such as low light or backlight. Since the flash light is usually much stronger than the ambient light source, when the flash light hits the object directly, if the flash light is too close to the object or the material of the object is easy to reflect, the captured image will be overexposed. [0003] figure 1 Shown as a flow chart of the flashing steps of an existing flashlight. Please refer to figure 1 , when the subject is supplemented with a flashlight, an original image that is not supplemented with a flashlight is acquired (step S102). Then acquire a pre-flash image with a flash (step S104 ). Then, calculate th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B15/05H05B37/02
Inventor 廖明俊
Owner ALTEK CORP
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