发明名称 |
Imaging optical instrument |
摘要 |
An imaging optical instrument causes light emitted from a plurality of light sources arranged adjacent an object to image on recording surfaces of a photosensitive or thermosensitive material. The optical instrument includes a two-sided telecentric optical system having a first lens disposed adjacent an entrance end of a lens barrel, and a second lens disposed adjacent an exit end of the lens barrel, and an aperture stop disposed adjacent a meeting point of a rearward focus of the first lens and a forward focus of the second lens. The aperture stop has an aperture formed centrally thereof for allowing passage of beams that should contribute to image formation, and a refracting portion surrounding the aperture for refracting beams that should be intercepted and causing these beams to leave the lens barrel from the exit end thereof. <IMAGE> |
申请公布号 |
EP1637909(B1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20050026108 |
申请日期 |
2002.05.03 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
UEYAMA, KENJI |
分类号 |
G03B27/32;G02B3/00;G02B3/06;G02B5/00;G02B7/02;G02B13/22;G03B9/02 |
主分类号 |
G03B27/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|