JPS6413117A - Optical modulating method - Google Patents

Optical modulating method

Info

Publication number
JPS6413117A
JPS6413117A JP16943587A JP16943587A JPS6413117A JP S6413117 A JPS6413117 A JP S6413117A JP 16943587 A JP16943587 A JP 16943587A JP 16943587 A JP16943587 A JP 16943587A JP S6413117 A JPS6413117 A JP S6413117A
Authority
JP
Japan
Prior art keywords
optical modulation
write
light
layer
optical
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
JP16943587A
Other languages
Japanese (ja)
Inventor
Yutaka Kurabayashi
Toshiichi Onishi
Kazuo Yoshinaga
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP16943587A priority Critical patent/JPS6413117A/en
Priority to DE3752080T priority patent/DE3752080T2/en
Priority to EP92119132A priority patent/EP0528449B1/en
Priority to US07/133,797 priority patent/US4995705A/en
Priority to EP87118684A priority patent/EP0271900B1/en
Priority to DE87118684A priority patent/DE3788634D1/en
Priority to DE3788634T priority patent/DE3788634T4/en
Publication of JPS6413117A publication Critical patent/JPS6413117A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a optical modulation element having high sensitivity and high density, and also, being excellent in storage and stability, by controlling optical thickness of an optical modulation layer, in the optical modulation element having the optical modulation layer and a reflecting layer. CONSTITUTION:A value of optical thickness of an optical modulation layer is set to an arbitrary value, and a light beam is selected to a state that a reflection is caused by a semipermeable reflecting layer 7, and a multipath reflection is caused between the semipermeable reflecting layer 7 and an electrode and reflecting layer 1. When dyestuff absorbed against wavelength of write light is added into the optical modulation layer, it is absorbed and converted to heat during the multipath reflection. In this state, when a temperature of a heating part is set to above a glass transition point (Tg), and an optical axis of a molecule of the optical modulation layer is varied by applying an electric field at the point concerned, write can be executed. Subsequently, when an erasion light is radiated, and it is set so that the erasion light causes a multipath reflection again at a write part, the write part can be heated again to above Tg by the erasion light. Therefore, when an electric field reverse to the time of write is applied at this point, the recording contents can be erased.
JP16943587A 1986-12-17 1987-07-07 Optical modulating method Pending JPS6413117A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP16943587A JPS6413117A (en) 1987-07-07 1987-07-07 Optical modulating method
DE3752080T DE3752080T2 (en) 1986-12-17 1987-12-16 Device, method and device for optical modulation
EP92119132A EP0528449B1 (en) 1986-12-17 1987-12-16 Device, method and apparatus for optical modulation
US07/133,797 US4995705A (en) 1986-12-17 1987-12-16 Device, method and apparatus for optical modulation using ferroelectric polymer liquid crystals
EP87118684A EP0271900B1 (en) 1986-12-17 1987-12-16 Device, method and apparatus for optical modulation
DE87118684A DE3788634D1 (en) 1986-12-17 1987-12-16 Method and device for optical recording.
DE3788634T DE3788634T4 (en) 1986-12-17 1987-12-16 Method and device for optical recording.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16943587A JPS6413117A (en) 1987-07-07 1987-07-07 Optical modulating method

Publications (1)

Publication Number Publication Date
JPS6413117A true JPS6413117A (en) 1989-01-18

Family

ID=15886547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16943587A Pending JPS6413117A (en) 1986-12-17 1987-07-07 Optical modulating method

Country Status (1)

Country Link
JP (1) JPS6413117A (en)

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