发明名称 |
Optisches Gerät mit einem Zoom-Linsensystem |
摘要 |
<p>The optical apparatus has a pair of relatively movable lens groups which are disposed on the common axis and a light intercepting member secured to and between the two lens groups. The light intercepting member is a thin, relatively long rectangular strip which is helically wound to form a plurality of coils. In an expanded state, the coils are overlapped to prevent incident light from passing into a space between the lens groups. At the same time, the strip is elastically resilient as to maintain the spacing between the two lens groups.</p> |
申请公布号 |
DE4335270(C2) |
申请公布日期 |
1996.02.01 |
申请号 |
DE19934335270 |
申请日期 |
1993.10.15 |
申请人 |
SAMSUNG AEROSPACE INDUSTRIES, LTD., CHANGWON, KYEONGSANGNAM, KR |
发明人 |
JEONG, JONG-KYO, KYEONGSANGNAM, KR |
分类号 |
G02B7/02;G02B7/04;G02B7/10;G03B5/00;(IPC1-7):G02B7/20 |
主分类号 |
G02B7/02 |
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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