发明名称 |
Scanning apparatus using holographic beam deflector |
摘要 |
An omnidirectional scanning apparatus which generates a multiple cross scanning pattern is described. The scanning apparatus comprises a flat ring-shaped hologram. The hologram disk is rotated about its axis as a small area is illuminated by a collimated light source, such as a laser, to produce a series of reconstructed beams which scan segments of a circle. Optical means is provided to intercept the reconstructed beams and reflect them to a scanning window where the segments produce a multiple cross scanning pattern. In a specific embodiment the holograms recorded are reconstructed as segments of concentric circles and the optical means comprises a stationary mirror for each direction of scan across the scanning window.
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申请公布号 |
US4026630(A) |
申请公布日期 |
1977.05.31 |
申请号 |
US19750644679 |
申请日期 |
1975.12.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
WOLLENMANN, HANS PETER |
分类号 |
G06K7/12;G02B26/10;G06K7/10;(IPC1-7):G02B27/17 |
主分类号 |
G06K7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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