发明名称 |
Scanning beam position detecting apparatus for use in electronic printer |
摘要 |
There is disclosed a scanning beam position indicating arrangement which is employed in an electronic printer for accurately clocking a writing beam of the printer as a function of writing beam position. One embodiment of a scanning beam position indicator arrangement utilizes a Fresnel mirror device. Another embodiment utilizes a holographic encoding element. Still another embodiment utilizes a ellipsoidal mirror device. Another embodiment utilizes a holographic lens.
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申请公布号 |
US4952946(A) |
申请公布日期 |
1990.08.28 |
申请号 |
US19880259963 |
申请日期 |
1988.10.19 |
申请人 |
POLAROID CORPORATION |
发明人 |
CLARK, PETER P.;MALONEY, WILLIAM T.;NORRIS, PHILIP R.;VETTERLING, WILLIAM T. |
分类号 |
H04N1/028;H04N1/053;H04N1/10;H04N1/113 |
主分类号 |
H04N1/028 |
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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