发明名称 |
Method for correction of temperature induced focus errors in a head-up display unit by measuring coefficients of thermal expansion |
摘要 |
A method of compensating for and correcting temperature induced focus and distortional errors within a head-up display unit is described. The head-up display is comprised of a cathode ray tube and a plurality of lenses constructed of a plastic material defining a lens train and a mounting device constructed of a metal material. The compensation for the temperature can be accomplished by measuring the difference in thermal expansion between the plastic material and the metal material and conveying the measured difference to an alignment device for an appropriate adjustment.
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申请公布号 |
US6509702(B1) |
申请公布日期 |
2003.01.21 |
申请号 |
US20010683005 |
申请日期 |
2001.11.08 |
申请人 |
FLIGHT VISIONS, INC. |
发明人 |
DEPPE JAMES |
分类号 |
G02B19/00;(IPC1-7):H01J29/58 |
主分类号 |
G02B19/00 |
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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