Automatic dimming device and application method thereof

Abstract

The invention provides an automatic dimming device and an application method thereof. The dimming device comprises a dimming optical module, a power module and a remote control module for adjusting transmittance of the dimming optical module. The power module is connected with the dimming optical module. The dimming optical module is connected with the remote control module. The dimming optical module comprises a lens combination and a shell structure. The device provided by the invention has the advantages that remote adjustment and multilevel adjustment can be carried out and adaptive parameter setting can be carried out according to a photographing environment. The device belongs to the technical field of an optical instrument.

Description

technical field [0001] The invention belongs to the technical field of optical instruments, and in particular relates to an automatic dimming type dimming device and a using method thereof. Background technique [0002] People are often affected by backlight or ambient light in the process of taking pictures, resulting in overexposure and stray light. In order to solve this problem, polarizers and light reduction films are used as filters in front of the lens. The current light reduction film mainly adopts two polarizer structures, one of which is rotated by an angle of θ relative to the other, and the transmitted light intensity I=I can be known from Marius' law 0 cos 2 (θ). With the development of smartphones and UAV photography, because the device is out of the hand, at the remote end, it is impossible to adjust the angle θ by hand in real time, unable to cope with complex and changeable shooting environments, and unable to meet the needs of adaptive light reduction pho...

AI Technical Summary

Problems solved by technology

The liquid crystal panel proposed by the patent proposal can only be realized under specific structural conditions, such as a liquid crystal panel with a color filter cannot be used

In addition, only using liquid crystal panels has the disadvantages of low polarization and low transmittance, and the film on the surface of the panel is not protected, which is easy to reduce the polarization performance in a humid environment

Moreover, the electronic control method adopted cannot adapt to scenes such as mobile phone and drone shooting, let alone realize self-adaptive adjustment of photos

[0004] In addition, the application for invention with the publication number CN103354600A proposes a camera exposure adjustment method with dimming adjustment, which uses a camera exposure adjustment device with dimming adjustment. The judgment of the light film ultimately depends on the exposure parameters to adjust the exposure. This method does not use a light reduction film that can be adjusted in multiple levels.

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