Title:
【発明の名称】光学検視装置
Document Type and Number:
Japanese Patent JP2859621
Kind Code:
B2
Abstract:
An apparatus for viewing a region within a body cavity or the like. The apparatus includes an elongate light pipe having a distal end and a proximal end, which light pipe illuminates the region to be viewed adjacent the distal end of the pipe. An objective lens system is carried at that distal end which in a preferred embodiment forms a focused real image of the illuminated region. This image is transmitted to the viewer through a series of relay lenses and, at the proximal end of the apparatus, through a viewing lens system. The light pipe and the lenses are composed of a polymeric material such as styrene, polycarbonate, acrylic, or the like, and are preferably aspheric lenses.
Inventors:
FUANTON SUTEIIBUN DEII
KOSUTA PIITAA EFU
HOOMUZU UIRIAMU EE
MORU FUREDERITSUKU ETSUCHI
KOSUTA PIITAA EFU
HOOMUZU UIRIAMU EE
MORU FUREDERITSUKU ETSUCHI
Application Number:
JP50398488A
Publication Date:
February 17, 1999
Filing Date:
April 25, 1988
Export Citation:
Assignee:
ENDO SERAPYUTEIKUSU
International Classes:
A61B1/00; A61B1/002; G02B23/26; (IPC1-7): G02B23/26; A61B1/00
Domestic Patent References:
| JPS57124323A |
Other References:
【文献】米国特許3297022(US,A)
【文献】米国特許2482971(US,A)
【文献】米国特許4159546(US,A)
【文献】米国特許2482971(US,A)
【文献】米国特許4159546(US,A)
Attorney, Agent or Firm:
Shusaku Yamamoto