Title:
【発明の名称】凹凸形状検出装置
Document Type and Number:
Japanese Patent JP2956154
Kind Code:
B2
Abstract:
PURPOSE:To reduce assembly error by emitting fully reflected scattered beams to the outside of a transparent light transmission body, forming a spherical face or a non-spherical image formation mirror, where the image is formed, on one part of the transparent light transmission body and arranging an image sensor at a position where the image is formed by the image formation mirror. CONSTITUTION:A spherical mirror is formed by deposition, etc., while being spherically shaped on one end face of a transparent light transmission body 20, and an image sensor 4 is arranged at the image forming position of the spherical mirror 8. When an uneven object 10 gets contact with one face of the transparent light transmission body 20, scattered beams 11 generated from projecting parts P as the result of lighting a contact face S are propagated in the transparent light transmission body 20 while being fully reflected. The scattered beams 11 fully reflected from the projecting parts P are emitted to the outside of the transparent light transmission body 20 by the spherical mirror 8 and image-formed on the image sensor 4 and therefore, the uneven pattern image of the uneven object 10 is converted to a picture data. Thus, since the spherical mirror 8 is formed on one face of the transparent light transmission body 20, an optical system is integrally formed and assembly error is reduced.
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Inventors:
NIIZAKI TAKU
IGAKI SEIGO
IGAKI SEIGO
Application Number:
JP19373690A
Publication Date:
October 04, 1999
Filing Date:
July 20, 1990
Export Citation:
Assignee:
FUJITSU KK
International Classes:
G06K9/00; G06T1/00; A61B5/117; (IPC1-7): G06T1/00
Domestic Patent References:
| JP250782A | ||||
| JP62198988A | ||||
| JP1287786A | ||||
| JP2176984A | ||||
| JP2161931A |
Attorney, Agent or Firm:
Teiichi