发明名称 |
Dual aperature optical scanner |
摘要 |
A dual aperture optical scanner which employs a single laser beam to produce horizontal and vertical scan patterns. The optical scanner includes a housing having first and second apertures, a laser beam source, a mirrored spinner having a plurality of facets with different elevation angles for reflecting the laser beam in a plurality of directions, and a plurality of pattern mirrors within the housing for reflecting the laser beam from the spinner through the first and second apertures to an article having a bar code label to be scanned. The optical scanner also includes an optical transceiver for passing the laser beam and for collecting reflected light from the scanned article and a photodetector for generating signals representing the intensity of the light reflected from the article.
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申请公布号 |
US5459308(A) |
申请公布日期 |
1995.10.17 |
申请号 |
US19940357341 |
申请日期 |
1994.12.15 |
申请人 |
NCR CORPORATION |
发明人 |
DETWILER, PAUL O.;MERGENTHALER, BARRY M. |
分类号 |
G02B5/09;G06K7/10;(IPC1-7):G06K7/10 |
主分类号 |
G02B5/09 |
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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