发明名称 |
Head mount type image display unit |
摘要 |
The invention provides an optical system which is well corrected in terms of both curvature of field and coma at a field angle of about 120 DEG and a pupil diameter of about 15 mm and may be applied to both image pickup and ocular systems. Dioptric elements 11 are located the pupil plane side E and/or image plane side I of a concentric element 12 including two semitransparent surfaces 121 and 122, said two semitransparent surfaces 121 and 122 being concave on the pupil plane side E and located such that they transmit light at least once and reflect light at least once.
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申请公布号 |
US5801885(A) |
申请公布日期 |
1998.09.01 |
申请号 |
US19950547871 |
申请日期 |
1995.10.25 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
TOGINO, TAKAYOSHI |
分类号 |
G02B17/08;G02B5/30;G02B27/00;G02B27/01;G02B27/02;(IPC1-7):G02B27/14 |
主分类号 |
G02B17/08 |
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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