Title:
SENSOR APPARATUS FOR JUDGING GLOSS
Document Type and Number:
Japanese Patent JP3264162
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce influences by a distance change or an angular change in a sensor which sheds a light of a specific polarization component on an object and determines a glass based on a preservation degree of the polarization component of a regular reflection light.
SOLUTION: A light of a specific polarization direction of a light from a light-projecting element 4 is cast to a work 27 via a polarization filter 25. A reflection light of the light is separated and detected by a polarizing beam splitter 26. A photodetecting sensitivity for the reflection light having a polarization component in the same direction as that of the cast light is set to be relatively lower than that for the reflection light of the other polarization direction. Accordingly, influences by a distance change and an angular change can be reduced.
Inventors:
Noriko Yamanaka
Hayami Hosokawa
Kohei Tomita
Hayami Hosokawa
Kohei Tomita
Application Number:
JP34924695A
Publication Date:
March 11, 2002
Filing Date:
December 19, 1995
Export Citation:
Assignee:
Omron Corporation
International Classes:
G01B11/30; G01N21/21; G01N21/57; G01S7/481; G01S17/02; H01H35/00; H03K17/78; (IPC1-7): G01N21/57; G01N21/21
Domestic Patent References:
| JP4299237A | ||||
| JP3170810A | ||||
| JP57114956U |
Other References:
水畑伸治，ファイバ光沢センサ：アンプユニット，ＯＭＲＯＭ ＴＥＣＨＮＩＣＳ，日本，１９９６年 １月１０日，ＶＯＬ．３５／ＮＯ．４，ＰＡＧＥ．２９６−３００
Attorney, Agent or Firm:
Yoshiki Okamoto (1 person outside)