JPS5539955A - Coordinate input device - Google Patents

Coordinate input device

Info

Publication number
JPS5539955A
JPS5539955A JP11232978A JP11232978A JPS5539955A JP S5539955 A JPS5539955 A JP S5539955A JP 11232978 A JP11232978 A JP 11232978A JP 11232978 A JP11232978 A JP 11232978A JP S5539955 A JPS5539955 A JP S5539955A
Authority
JP
Japan
Prior art keywords
light
light conveying
sheets
passage
conveying
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.)
Granted
Application number
JP11232978A
Other languages
Japanese (ja)
Other versions
JPS5636451B2 (en
Inventor
Shigeru Oikawa
Yuzo Katayama
Takashi Kurokawa
Norio Takato
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP11232978A priority Critical patent/JPS5539955A/en
Priority to PCT/JP1978/000035 priority patent/WO1979000436A1/en
Priority to DE7878900316T priority patent/DE2862178D1/en
Priority to CA318,667A priority patent/CA1100211A/en
Priority to EP19780900316 priority patent/EP0006960B1/en
Publication of JPS5539955A publication Critical patent/JPS5539955A/en
Publication of JPS5636451B2 publication Critical patent/JPS5636451B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To detect a minimum wave receiving time by a simple construction by providing a first and a second light conveying sheets containing a micro scattered members of light in a plurality of linear light conveying passages arranged in parallel and connecting a photodetector array to the respective light conveying passage.
CONSTITUTION: The first and the second light coveying sheets 1, 2 containing the minimum scattered light members in a plurality of linear light conveying passages arranged in parallel are formed. The light conveying passage 3 in the first light conveying sheet 1 is intersected with the light conveying passage 3 in the second light conveying sheet 2 at right angles with each other to laminate both the light conveying sheets 1, 2. At the light conveying passage ends of both the light conveying sheets 1, 2, the tapered light conveying sheet 6 in which the tapered light conveying passage for shortening the space of the light conveying passage 3 is contacted tightly. At this light passage space shortened end 7, the photodetecting element surface 9 of the photodetectors 8A to 8D are fixed, confronting thereto. There is provided a light pen 10 for projecting beam light into the light conveying passages 3, 5 in both the sheets 1, 2, and the projected coordinates positions are added to the signal generator SG to generate the coordinates signal.
COPYRIGHT: (C)1980,JPO&Japio
JP11232978A 1977-12-26 1978-09-14 Coordinate input device Granted JPS5539955A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11232978A JPS5539955A (en) 1978-09-14 1978-09-14 Coordinate input device
PCT/JP1978/000035 WO1979000436A1 (en) 1977-12-26 1978-12-01 Optical coordinate input device
DE7878900316T DE2862178D1 (en) 1977-12-26 1978-12-01 Coordinate input apparatus
CA318,667A CA1100211A (en) 1977-12-26 1978-12-27 Coordinate input apparatus
EP19780900316 EP0006960B1 (en) 1977-12-26 1979-07-16 Coordinate input apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11232978A JPS5539955A (en) 1978-09-14 1978-09-14 Coordinate input device

Publications (2)

Publication Number Publication Date
JPS5539955A true JPS5539955A (en) 1980-03-21
JPS5636451B2 JPS5636451B2 (en) 1981-08-24

Family

ID=14583945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11232978A Granted JPS5539955A (en) 1977-12-26 1978-09-14 Coordinate input device

Country Status (1)

Country Link
JP (1) JPS5539955A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05334000A (en) * 1992-05-29 1993-12-17 Sharp Corp Input integrated type display device
JP2017508217A (en) * 2014-03-11 2017-03-23 クアルコム，インコーポレイテッド System and method for optical-based active stylus input recognition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137630A (en) * 1974-04-20 1975-10-31
JPS52129327A (en) * 1976-04-23 1977-10-29 Nec Corp Input tablet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50137630A (en) * 1974-04-20 1975-10-31
JPS52129327A (en) * 1976-04-23 1977-10-29 Nec Corp Input tablet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05334000A (en) * 1992-05-29 1993-12-17 Sharp Corp Input integrated type display device
JP2017508217A (en) * 2014-03-11 2017-03-23 クアルコム，インコーポレイテッド System and method for optical-based active stylus input recognition

Also Published As

Publication number Publication date
JPS5636451B2 (en) 1981-08-24

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