Liquid crystal-based direct-view anti-glare imager and anti-glare imaging method

Abstract

The invention discloses a liquid crystal-based direct-view anti-glare imager, which comprises an objective imaging system, wherein a high-temperature polycrystalline silicon (HTPS) liquid crystal plate is arranged on the light exit side of the objective imaging system; a semi-reflector a, a semi-reflector b and an eyepiece imaging system are arranged on the light exit side of the HTPS liquid crystal plate in turn; an infrared light-emitting diode is arranged outside the eyepiece imaging system; a right-angle prism is arranged on a light reflecting side of the semi-reflector a; a semi-reflector c and a charge coupled device (CCD) are arranged on the light reflecting side of the right-angle prism in turn; the CCD is electrically connected with a circuit control module; and the output end ofthe circuit control module is connected with the HTPS liquid crystal plate. The invention also discloses an anti-glare imaging method. In the method, the infrared light-emitting diode is used as a light source to lighten eyes, automatic focusing is controlled after an eye stare direction is determined by collecting, processing and feeding back the pupil image information of a photographer, and the HTPS liquid crystal plate is used to modulate all pixels one by one, so that the contrast ratio of an image is reduced and the definition of the image is improved.

Description

technical field [0001] The invention belongs to the technical field of anti-glare imaging, and in particular relates to a liquid crystal-based direct-view anti-glare imager, and also relates to an anti-glare imaging method for the imager. Background technique [0002] In daily life and military operations, glare, as a common phenomenon, has a great impact on normal life and causes harm to human vision health. Therefore, the suppression of glare has attracted the attention of many fields such as modern urban lighting, transportation, and military affairs. [0003] The definition of glare by the International Commission on Illumination is: "Glare is a visual condition. The formation of this condition is due to improper brightness distribution, or too large a range of brightness changes, or extreme contrast in space and time, so that causing discomfort or reducing the ability to see important objects, or both”. According to the formation mechanism and impact of glare, Yang Go...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a liquid crystal-based direct-view anti-glare imager, which solves the problem that the existing anti-glare method cannot partially select the imaging area, the imaging quality cannot meet the actual requirements, and the problem of endangering human vision health is solved.

Images