FIELD: physics.
SUBSTANCE: invention relates to mobile light-protective devices for human vision and for light-sensitive vision sensors. Filter comprises at least one light-protective modulator, at least one M-channel light arrival angle meter along the x coordinate, made in the form of successively arranged shadow y-selector and the first photodetector module, N-channel light arrival angle meter along the y coordinate, made in the form of successively arranged shadow x-selector and the second photodetector module. Filter also comprises processor unit, inputs of which are connected to outputs of angle meters, and outputs — with individually addressable M×N modulation elements of the light-protective modulator, which correspond to M×N optical axes of view, mnth of which passes through mnth segment of light-protective modulator and mnth local area of external scene (m=1, 2, …, M; n=1, 2, …, N), and light-protective modulator output is optically interfaced with protected light-sensitive sensor input, wherein the transfer function of the processor unit for the mnth modulation element of the light-protective modulator corresponds to a logical function AND from the output of the mth channel angle meter along the y coordinate and from the output of the nth channel of the N-channel angle meter along the x coordinate.
EFFECT: increased accuracy of device operation and increased dynamic range of interfering light suppression.
7 cl, 15 dwg
