FIELD: optics.
SUBSTANCE: light projector comprises a structure of multilayer optical elements forming a set, comprising a group of at least one optical element, which provides a plurality of light patterns, and an array of microlenses. Array of microlens receives a plurality of different light patterns and focuses each light pattern of plurality of different light patterns at different corresponding focal distances. Light patterns are spatially repeating segments of patterns, which have different pitches for each light pattern. Relationship between pitch of array of microlenses and pitch of corresponding light pattern determines corresponding focal distance.
EFFECT: device provides higher functionality, simplified design.
16 cl, 17 dwg
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