CN1103457C - 自动调整焦距的投影系统及其方法 - Google Patents
自动调整焦距的投影系统及其方法 Download PDFInfo
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- CN1103457C CN1103457C CN 00135549 CN00135549A CN1103457C CN 1103457 C CN1103457 C CN 1103457C CN 00135549 CN00135549 CN 00135549 CN 00135549 A CN00135549 A CN 00135549A CN 1103457 C CN1103457 C CN 1103457C
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Application Number | Priority Date | Filing Date | Title |
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CN 00135549 CN1103457C (zh) | 2000-12-18 | 2000-12-18 | 自动调整焦距的投影系统及其方法 |
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CN 00135549 CN1103457C (zh) | 2000-12-18 | 2000-12-18 | 自动调整焦距的投影系统及其方法 |
Publications (2)
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CN1359018A CN1359018A (zh) | 2002-07-17 |
CN1103457C true CN1103457C (zh) | 2003-03-19 |
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CN 00135549 Expired - Fee Related CN1103457C (zh) | 2000-12-18 | 2000-12-18 | 自动调整焦距的投影系统及其方法 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100445801C (zh) * | 2006-01-18 | 2008-12-24 | 台达电子工业股份有限公司 | 用于光学设备的光线耦合装置 |
CN101071258B (zh) * | 2006-05-10 | 2010-12-15 | 明基电通股份有限公司 | 利用非可见光辨识图案的投影装置 |
CN104570568B (zh) * | 2014-12-19 | 2017-02-22 | 神画科技(深圳)有限公司 | 投影仪自动调焦方法 |
CN104570569B (zh) * | 2015-01-27 | 2017-01-11 | 神画科技(深圳)有限公司 | 基于传感器的投影仪自动调焦方法 |
CN111064939A (zh) * | 2018-10-16 | 2020-04-24 | 中强光电股份有限公司 | 投影系统及梯形校正方法 |
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- 2000-12-18 CN CN 00135549 patent/CN1103457C/zh not_active Expired - Fee Related
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CN1359018A (zh) | 2002-07-17 |
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Owner name: BENQ MOTOR CO., LTD. Free format text: FORMER NAME OR ADDRESS: BENQ ELECTRONS STOCK CO., LTD. |
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Patentee after: Benq Corp. Patentee before: Benq Corp. |
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Owner name: QISDA CORPORATION Free format text: FORMER NAME: BENQ CORP. |
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Address after: 000000 Taoyuan County, Taiwan, China Patentee after: Qisda Corporation Address before: 000000 Taoyuan County, Taiwan, China Patentee before: Benq Corp. |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030319 Termination date: 20111218 |