Micro aspherical lens and fabricating method therefor and optical device
AssigneeOmron Tateisi Electronics Co.
InventorsShigeru Aoyama, Tsukasa Yamashita, Shiro Ogata
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AssigneeOmron Tateisi Electronics Co.
InventorsShigeru Aoyama, Tsukasa Yamashita, Shiro Ogata
Estimating the term…
An imaging device is formed by a transparent substrate having opposite surfaces on which are formed a plurality of micro aspherical lenses. The axes of the lenses on one surface coincide with the axes of respective lenses on the other surface. A two-dimensional micro lens array constructed by arranging converging lenses having a diameter of approximately several to several hundred micrometers is arranged ahead of a light source, thereby forming a multi-beam spot caused by diffraction in a distant position. A three-dimensional shape can be recognized with high precision by shape recognition means utilizing this multi-beam spot.
An imaging device comprising:
An imaging device comprising:
An imaging device comprising:
A multi-beam projector comprising a light source and a micro lens array having a plurality of micro aspherical lenses arranged two-dimensionally in a zig-zag pattern, said micro lens array receiving light from said light source and causing a plurality of light spots caused by diffraction to be formed in a position displaced therefrom.
A multi-beam projector comprising a light source and a micro lens array having a plurality of diffraction type micro aspherical lenses arranged in a two-dimensional manner, said micro lens array receiving light from said light source and causing a plurality of light spots caused by diffraction to be formed in a position displaced therefrom.
Dependencies are inferred from the claim text.