【発明の名称】光学式エンコ-ダ用配光装置

Title:

【発明の名称】光学式エンコ-ダ用配光装置

Document Type and Number:

Japanese Patent JPS5856920

Kind Code:

B2

Abstract:

The invention provides a light distribution system for optical encoders including a light guide plate (28) and a light input coupler [Figs. 1-5 (87); Fig. 6 (90); Fig. 7 (89)] for distributing input incident radiations into the light guide plate as a flat distributed beam of beam segments (114) intercepted by a pattern of discrete light output couplers [Figs. 3, 4 (50-54)] reflecting narrow output beams [Figs. 5, 8 (30)] for providing a uniform pattern of encoding illuminations.

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Inventors:

TOMU HENINGUZEN
FUORESUTO YUUJIN KOIRU
ROJAA DEIRU MOOTESU

Application Number:

JP13438181A

Publication Date:

December 17, 1983

Filing Date:

August 28, 1981

Export Citation:

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Assignee:

WESTINGHOUSE ELECTRIC CO

International Classes:

G01D5/36; G01D5/249; G01D5/26; H03M1/00; (IPC1-7): G08C9/06; G01D5/26

Attorney, Agent or Firm:

Soga Doteru

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