发明名称 |
Projection lens and projection television system using the same |
摘要 |
A projection lens for projecting images displayed on an image display device having angle-of-view dependency has high image focusing characteristics corresponding to high definition images, wide field angle, and telecentric characteristics. In addition, a projection television system using the same can be minimized in its size.
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申请公布号 |
US5099361(A) |
申请公布日期 |
1992.03.24 |
申请号 |
US19900486101 |
申请日期 |
1990.02.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAMOTO, YOSHIHARU;NAKAJIMA, YASUO |
分类号 |
G02B13/16;G02B13/18;G02B13/22 |
主分类号 |
G02B13/16 |
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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