JPS641913A - Encoder - Google Patents

Encoder

Info

Publication number
JPS641913A
JPS641913A JP15535587A JP15535587A JPS641913A JP S641913 A JPS641913 A JP S641913A JP 15535587 A JP15535587 A JP 15535587A JP 15535587 A JP15535587 A JP 15535587A JP S641913 A JPS641913 A JP S641913A
Authority
JP
Japan
Prior art keywords
slit
section
rotary
moving
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15535587A
Other languages
Japanese (ja)
Other versions
JPH011913A (en
Inventor
Takaomi Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamagawa Seiki Co Ltd
Original Assignee
Tamagawa Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tamagawa Seiki Co Ltd filed Critical Tamagawa Seiki Co Ltd
Priority to JP15535587A priority Critical patent/JPS641913A/en
Publication of JPH011913A publication Critical patent/JPH011913A/en
Publication of JPS641913A publication Critical patent/JPS641913A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Optical Transform (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To achieve a highly accurate detection, by providing a moving slit section with an auxiliary moving slit to obtain the amount of signals other than '0' and '1'.
CONSTITUTION: A rotary disc 1 is provided integral at the upper end of a rotating shaft 2 provided rotatably on a bearing 11 as the moving plate having a rotary slit 1a as the moving slit. A circuit board 13 having a processing circuit section 12 is provided above the disc 1. A light emitting section 4 is provided on the undersurface of the circuit board 13. A light receiving section 7 is provided below the disc 1 through a stationary slit plate 6 and an output signal thereof 7 is applied to a processing circuit section 12. The rotary slit 1a has an auxiliary rotary slit 1aA formed as auxiliary moving slit with the width thereof sufficiently smaller than the width W of the slit 1a. Signals other than '1' and '0' are obtained with the passage of light through the slit 1aA.
COPYRIGHT: (C)1989,JPO&Japio
JP15535587A 1987-06-24 1987-06-24 Encoder Pending JPS641913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15535587A JPS641913A (en) 1987-06-24 1987-06-24 Encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15535587A JPS641913A (en) 1987-06-24 1987-06-24 Encoder

Publications (2)

Publication Number Publication Date
JPH011913A JPH011913A (en) 1989-01-06
JPS641913A true JPS641913A (en) 1989-01-06

Family

ID=15604093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15535587A Pending JPS641913A (en) 1987-06-24 1987-06-24 Encoder

Country Status (1)

Country Link
JP (1) JPS641913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5373279A (en) * 1992-10-29 1994-12-13 Hitachi, Ltd. Arrester for gas insulated switchgear device
US5539607A (en) * 1993-06-18 1996-07-23 Kabushiki Kaisha Toshiba Tank-shape arrester
JP2007038454A (en) * 2005-08-01 2007-02-15 Toyota Motor Corp Injection mold

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5373279A (en) * 1992-10-29 1994-12-13 Hitachi, Ltd. Arrester for gas insulated switchgear device
US5539607A (en) * 1993-06-18 1996-07-23 Kabushiki Kaisha Toshiba Tank-shape arrester
JP2007038454A (en) * 2005-08-01 2007-02-15 Toyota Motor Corp Injection mold

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