JPS5538514A - Wavelength plate - Google Patents

Wavelength plate

Info

Publication number
JPS5538514A
JPS5538514A JP11099478A JP11099478A JPS5538514A JP S5538514 A JPS5538514 A JP S5538514A JP 11099478 A JP11099478 A JP 11099478A JP 11099478 A JP11099478 A JP 11099478A JP S5538514 A JPS5538514 A JP S5538514A
Authority
JP
Japan
Prior art keywords
films
sheets
phase difference
high polymer
angle
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
JP11099478A
Other languages
Japanese (ja)
Inventor
Hiroshi Mori
Mikio Sugiki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP11099478A priority Critical patent/JPS5538514A/en
Priority to CA335,204A priority patent/CA1131058A/en
Priority to AU50681/79A priority patent/AU527174B2/en
Priority to DE19792936483 priority patent/DE2936483A1/en
Priority to FR7922595A priority patent/FR2435731A1/en
Priority to NL7906736A priority patent/NL7906736A/en
Priority to GB7931345A priority patent/GB2034917B/en
Publication of JPS5538514A publication Critical patent/JPS5538514A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Polarising Elements (AREA)
  • Laminated Bodies (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE: To enable the wavelength plates having arbitrarly desired phase differences to be readily obtained voluminously by so superposing plural sheets of high polymer films having double refractions that mutual optical axes have required angles.
CONSTITUTION: The phase difference γ of a sheet-form high polymer film is measured and two sheets of films 11 and 12 are cut out from this high polymer film. Next, the angle C that both optical axes of the films 11 and 12 assume and which is necessary for obtaining the wavelength plate of a desired phase difference through superposition of the films 11 and 12 is obtained by using the phase difference γ. Two sheets of the films 11 and 12 are so superposed as to have the required angle C and are sandwiched between two sheets of protecting plates 13 and 14, thence they are integrated by means of adhesives. If the γ of the sheets used in this way is once measured and the angle C of both films 11 and 12 is once set, then the wavelength plates 10 of the same characteristics, e.g., quarter-wave plate or half-wave plate may be voluminously produced.
COPYRIGHT: (C)1980,JPO&Japio
JP11099478A 1978-09-09 1978-09-09 Wavelength plate Pending JPS5538514A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP11099478A JPS5538514A (en) 1978-09-09 1978-09-09 Wavelength plate
CA335,204A CA1131058A (en) 1978-09-09 1979-09-07 Wave plate retarder
AU50681/79A AU527174B2 (en) 1978-09-09 1979-09-07 Wavelength plate
DE19792936483 DE2936483A1 (en) 1978-09-09 1979-09-10 METHOD FOR PRODUCING A DISK-SHAPED LIGHTWAVE DELAYER
FR7922595A FR2435731A1 (en) 1978-09-09 1979-09-10 PLATE SELF-TIMER
NL7906736A NL7906736A (en) 1978-09-09 1979-09-10 WAVE PLATE DELAY ELEMENT.
GB7931345A GB2034917B (en) 1978-09-09 1979-09-10 Wave plate retarders and methods of making such retarders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11099478A JPS5538514A (en) 1978-09-09 1978-09-09 Wavelength plate

Publications (1)

Publication Number Publication Date
JPS5538514A true JPS5538514A (en) 1980-03-18

Family

ID=14549696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11099478A Pending JPS5538514A (en) 1978-09-09 1978-09-09 Wavelength plate

Country Status (7)

Country Link
JP (1) JPS5538514A (en)
AU (1) AU527174B2 (en)
CA (1) CA1131058A (en)
DE (1) DE2936483A1 (en)
FR (1) FR2435731A1 (en)
GB (1) GB2034917B (en)
NL (1) NL7906736A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412958A1 (en) * 1984-04-06 1985-10-17 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Phase grating
US5282188A (en) * 1992-02-18 1994-01-25 Eastman Kodak Company Apparatus and method for optimizing performance in read/write head of an optical storage system with a magneto-optical storage medium
US6353477B1 (en) * 1992-09-18 2002-03-05 J. A. Woollam Co. Inc. Regression calibrated spectroscopic rotating compensator ellipsometer system with pseudo-achromatic retarder system
JP2004264620A (en) * 2003-03-03 2004-09-24 Jsr Corp Laminated wavelength board

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550719C (en) * 1930-12-13 1932-05-18 Winkel G M B H R Rotatable compensator with a plane-parallel plate made of birefringent material
GB499797A (en) * 1937-07-30 1939-01-30 Kodak Ltd Improvements in light filters
FR906683A (en) * 1943-09-22 1946-01-16 Zeiss Ikon Ag Surface bonding process for birefringent layers
US2441049A (en) * 1944-09-29 1948-05-04 Polaroid Corp Composite achromatic wave plates comprising superimposed sheets of differently birefringent, molecularly oriented, transparent, solid, organic plastic material

Also Published As

Publication number Publication date
AU5068179A (en) 1980-03-20
FR2435731A1 (en) 1980-04-04
GB2034917A (en) 1980-06-11
CA1131058A (en) 1982-09-07
FR2435731B1 (en) 1983-07-08
DE2936483A1 (en) 1980-03-20
GB2034917B (en) 1983-01-12
NL7906736A (en) 1980-03-11
AU527174B2 (en) 1983-02-17

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