JPS55108080A - Photo electric conversion unit - Google Patents

Photo electric conversion unit

Info

Publication number
JPS55108080A
JPS55108080A JP1497279A JP1497279A JPS55108080A JP S55108080 A JPS55108080 A JP S55108080A JP 1497279 A JP1497279 A JP 1497279A JP 1497279 A JP1497279 A JP 1497279A JP S55108080 A JPS55108080 A JP S55108080A
Authority
JP
Japan
Prior art keywords
read
conversion
original
photo electric
signal
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
JP1497279A
Other languages
English (en)
Other versions
JPH0130341B2 (ja
Inventor
Yasuyuki Kojima
Mitsuharu Tadauchi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1497279A priority Critical patent/JPS55108080A/ja
Publication of JPS55108080A publication Critical patent/JPS55108080A/ja
Publication of JPH0130341B2 publication Critical patent/JPH0130341B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Character Input (AREA)
  • Image Input (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP1497279A 1979-02-14 1979-02-14 Photo electric conversion unit Granted JPS55108080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1497279A JPS55108080A (en) 1979-02-14 1979-02-14 Photo electric conversion unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1497279A JPS55108080A (en) 1979-02-14 1979-02-14 Photo electric conversion unit

Publications (2)

Publication Number Publication Date
JPS55108080A true JPS55108080A (en) 1980-08-19
JPH0130341B2 JPH0130341B2 (ja) 1989-06-19

Family

ID=11875883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1497279A Granted JPS55108080A (en) 1979-02-14 1979-02-14 Photo electric conversion unit

Country Status (1)

Country Link
JP (1) JPS55108080A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932037A (ja) * 1981-09-08 1984-02-21 ゼロツクス・コ−ポレ−シヨン ハ−フト−ン閾値生成装置及び方法
JPS5934761A (ja) * 1982-08-23 1984-02-25 Matsushita Graphic Commun Syst Inc 画像読取装置
JPS59100666A (ja) * 1982-11-30 1984-06-09 Matsushita Graphic Commun Syst Inc Ｅｐｒｏｍ書込み装置
JPS59147566A (ja) * 1983-02-10 1984-08-23 Agency Of Ind Science & Technol 視覚センサ−における外光の影響除去装置
JPS60231273A (ja) * 1984-05-01 1985-11-16 Hitachi Medical Corp 画像読取装置
JPH03219779A (ja) * 1990-08-17 1991-09-27 Hitachi Ltd ファクシミリ装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04127242U (ja) * 1991-05-01 1992-11-19 日康ケミカル株式会社 保冷部材

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126132A (ja) * 1974-03-23 1975-10-03
JPS5317034A (en) * 1976-07-30 1978-02-16 Sharp Corp Image sensor output correcting system
JPS5374841A (en) * 1976-12-15 1978-07-03 Nec Corp Television signal processor
JPS5395518A (en) * 1977-02-02 1978-08-21 Nippon Telegr & Teleph Corp <Ntt> Facsimile input system
JPS551753A (en) * 1978-06-20 1980-01-08 Ricoh Co Ltd Shading correction unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50126132A (ja) * 1974-03-23 1975-10-03
JPS5317034A (en) * 1976-07-30 1978-02-16 Sharp Corp Image sensor output correcting system
JPS5374841A (en) * 1976-12-15 1978-07-03 Nec Corp Television signal processor
JPS5395518A (en) * 1977-02-02 1978-08-21 Nippon Telegr & Teleph Corp <Ntt> Facsimile input system
JPS551753A (en) * 1978-06-20 1980-01-08 Ricoh Co Ltd Shading correction unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5932037A (ja) * 1981-09-08 1984-02-21 ゼロツクス・コ−ポレ−シヨン ハ−フト−ン閾値生成装置及び方法
JPS5934761A (ja) * 1982-08-23 1984-02-25 Matsushita Graphic Commun Syst Inc 画像読取装置
JPS6236425B2 (ja) * 1982-08-23 1987-08-06 Matsushita Graphic Communic
JPS59100666A (ja) * 1982-11-30 1984-06-09 Matsushita Graphic Commun Syst Inc Ｅｐｒｏｍ書込み装置
JPH0522432B2 (ja) * 1982-11-30 1993-03-29 Matsushita Graphic Communic
JPS59147566A (ja) * 1983-02-10 1984-08-23 Agency Of Ind Science & Technol 視覚センサ−における外光の影響除去装置
JPH0534869B2 (ja) * 1983-02-10 1993-05-25 Kogyo Gijutsuin
JPS60231273A (ja) * 1984-05-01 1985-11-16 Hitachi Medical Corp 画像読取装置
JPH03219779A (ja) * 1990-08-17 1991-09-27 Hitachi Ltd ファクシミリ装置

Also Published As

Publication number Publication date
JPH0130341B2 (ja) 1989-06-19

Similar Documents

Publication Publication Date Title
US4153364A (en) Exposure and development control apparatus for electrostatic copying machine
US3851970A (en) Instrument for measuring ultra-violet light
JPS55108080A (en) Photo electric conversion unit
JPS552916A (en) Spectral photometer
JPS5530635A (en) Spectroscopic photometer with dark current compensator
JPS5548976A (en) Photoelectric conversion element
EP0108626A3 (en) Improvements in and relating to document scanners
JPS55134339A (en) Inspecting device of lens
JPS57171877A (en) Detecting device for degradation of light source in facsimile device
JPS5530632A (en) Spectroscopic photmeter of variable reception type
JPS56161777A (en) Facsimile device
JPS5520420A (en) Mtf examination unit
JPS5629111A (en) Distance measuring unit
JPS5672580A (en) Read signal processor
JPS6450669A (en) Light quantity monitor device
JPS55150073A (en) Pattern input device
JPS551753A (en) Shading correction unit
JPS5494836A (en) Pattern input unit
JPS6457142A (en) Apparatus for inspecting characteristic of optical part
SU885058A1 (ru) Анализирующее устройство дл электрогравировальных автоматов
JPS56104312A (en) Detector
JPS58197959A (ja) 量子化回路
JPS5733868A (en) Photoelectric converter
JPS5657028A (en) Reflective photometric device for focal plane shutter
JPS5777946A (en) Discriminating method for road surface condition