JPS5689711A - Photoscanner - Google Patents

Photoscanner

Info

Publication number
JPS5689711A
JPS5689711A JP16654379A JP16654379A JPS5689711A JP S5689711 A JPS5689711 A JP S5689711A JP 16654379 A JP16654379 A JP 16654379A JP 16654379 A JP16654379 A JP 16654379A JP S5689711 A JPS5689711 A JP S5689711A
Authority
JP
Japan
Prior art keywords
light
scanning
disc
locus
diffracted
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
JP16654379A
Other languages
Japanese (ja)
Inventor
Seikichi Matsumoto
Hiroyuki Ikeda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16654379A priority Critical patent/JPS5689711A/en
Publication of JPS5689711A publication Critical patent/JPS5689711A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain linear and other desired scanning locus, by inserting a prism or a paraboloidal mirror into the scanning diffracted light obtained by irradiating the coherent light to the rotary disc having the diffraction grating having space frequency inclination.
CONSTITUTION: Disc 1 which has the holographic diffraction grating having many segments due to coherent plane wave reference light and spherical object wave light can be rotated with rotary shaft 18 as the center by motor 17. When the parallel beam (reference light) from the coherent light source is irradiated to disc 1, diffracted beam 21 scans object surface 21 in an arc form. If prism 30 is inserted into diffracted light 21 and center beam 32B gives a minimum declination, locus of the scanning beam becomes a straight line. If diffracted light 21 is reflected by paraboloidal mirror 33 and is focused onto object surface 27, the scanning locus becomes a reverse arc. As a result, linear and other desired scanning locus is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP16654379A 1979-12-21 1979-12-21 Photoscanner Pending JPS5689711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16654379A JPS5689711A (en) 1979-12-21 1979-12-21 Photoscanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16654379A JPS5689711A (en) 1979-12-21 1979-12-21 Photoscanner

Publications (1)

Publication Number Publication Date
JPS5689711A true JPS5689711A (en) 1981-07-21

Family

ID=15833218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16654379A Pending JPS5689711A (en) 1979-12-21 1979-12-21 Photoscanner

Country Status (1)

Country Link
JP (1) JPS5689711A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587122A (en) * 1981-07-06 1983-01-14 Minolta Camera Co Ltd Optical beam scanning device
JPH01500226A (en) * 1986-04-04 1989-01-26 イーストマン・コダック・カンパニー scanning device
JPH0415754U (en) * 1990-05-25 1992-02-07

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120846A (en) * 1976-04-02 1977-10-11 Ibm Optical scanner
JPS5331147A (en) * 1976-09-03 1978-03-24 Canon Inc Scanning optical system
JPS5417038A (en) * 1977-07-06 1979-02-08 Nec Corp Optical scanning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52120846A (en) * 1976-04-02 1977-10-11 Ibm Optical scanner
JPS5331147A (en) * 1976-09-03 1978-03-24 Canon Inc Scanning optical system
JPS5417038A (en) * 1977-07-06 1979-02-08 Nec Corp Optical scanning system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587122A (en) * 1981-07-06 1983-01-14 Minolta Camera Co Ltd Optical beam scanning device
JPH01500226A (en) * 1986-04-04 1989-01-26 イーストマン・コダック・カンパニー scanning device
JPH0415754U (en) * 1990-05-25 1992-02-07

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