WO1994028445A3 - Variables farbfilter - Google Patents

Variables farbfilter Download PDF

Info

Publication number
WO1994028445A3
WO1994028445A3 PCT/DE1994/000592 DE9400592W WO9428445A3 WO 1994028445 A3 WO1994028445 A3 WO 1994028445A3 DE 9400592 W DE9400592 W DE 9400592W WO 9428445 A3 WO9428445 A3 WO 9428445A3
Authority
WO
WIPO (PCT)
Prior art keywords
colour filter
variable colour
components
variable
polarisation
Prior art date
Application number
PCT/DE1994/000592
Other languages
English (en)
French (fr)
Other versions
WO1994028445A2 (de
Inventor
Andreas Biedermann
Original Assignee
Andreas Biedermann
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 Andreas Biedermann filed Critical Andreas Biedermann
Publication of WO1994028445A2 publication Critical patent/WO1994028445A2/de
Publication of WO1994028445A3 publication Critical patent/WO1994028445A3/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/288—Filters employing polarising elements, e.g. Lyot or Solc filters

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)

Abstract

Die Erfindung betrifft ein variables Farbfilter, mit dem auf einfache Art eine große Farbpalette erzeugt werden kann. Die Funktion des Farbfilters entsteht durch das Zusammenwirken einer Mehrzahl von polarisierenden Bauelementen, von denen mindestens ein Bauelement eine ausgeprägte Wellenlängenabhängigkeit der Transmission für eine Polarisationsrichtung aufweist.
PCT/DE1994/000592 1993-05-22 1994-05-24 Variables farbfilter WO1994028445A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4317140.0 1993-05-22
DE19934317140 DE4317140A1 (de) 1993-05-22 1993-05-22 Variables Farbfilter

Publications (2)

Publication Number Publication Date
WO1994028445A2 WO1994028445A2 (de) 1994-12-08
WO1994028445A3 true WO1994028445A3 (de) 1995-01-26

Family

ID=6488719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1994/000592 WO1994028445A2 (de) 1993-05-22 1994-05-24 Variables farbfilter

Country Status (2)

Country Link
DE (1) DE4317140A1 (de)
WO (1) WO1994028445A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0903132A1 (de) * 1997-09-22 1999-03-24 Andreas Maurer Farbbrille

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1392512A (en) * 1971-08-31 1975-04-30 Siemens Ag Tunable laser systems
US3936147A (en) * 1972-11-22 1976-02-03 Minolta Camera Kabushiki Kaisha Variable characteristic light filter
GB2048506A (en) * 1978-04-25 1980-12-10 Marconi Co Ltd Liquid crystal optical filter system
JPS56137317A (en) * 1980-03-28 1981-10-27 Fujitsu Ltd Interference polarizer of multireflection light
EP0052000A2 (de) * 1980-11-10 1982-05-19 Polaroid Corporation Variable Farbfilter
JPS5997105A (ja) * 1982-11-27 1984-06-04 Sony Corp 干渉型偏光子

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2298059A (en) * 1941-11-08 1942-10-06 Polaroid Corp Color correction filter employing light-polarizing material
DE1082064B (de) * 1955-06-10 1960-05-19 Zeiss Ikon Ag Lichtfilter veraenderbarer Farbe
US3431044A (en) * 1965-01-04 1969-03-04 William T Clark Diminutive mechanical method of changing color and color saturation
GB1126392A (en) * 1967-05-19 1968-09-05 Standard Telephones Cables Ltd Optical polariser
JPS5410501B2 (de) * 1974-11-14 1979-05-07
US4778263A (en) * 1987-05-29 1988-10-18 The United States Of America As Respresented By The Department Of Energy Variable laser attenuator
JPH0320711A (ja) * 1989-06-16 1991-01-29 Sharp Corp ホログラムディスク

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1392512A (en) * 1971-08-31 1975-04-30 Siemens Ag Tunable laser systems
US3936147A (en) * 1972-11-22 1976-02-03 Minolta Camera Kabushiki Kaisha Variable characteristic light filter
GB2048506A (en) * 1978-04-25 1980-12-10 Marconi Co Ltd Liquid crystal optical filter system
JPS56137317A (en) * 1980-03-28 1981-10-27 Fujitsu Ltd Interference polarizer of multireflection light
EP0052000A2 (de) * 1980-11-10 1982-05-19 Polaroid Corporation Variable Farbfilter
JPS5997105A (ja) * 1982-11-27 1984-06-04 Sony Corp 干渉型偏光子

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 13 (P - 99) 26 January 1982 (1982-01-26) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 214 (P - 304) 29 September 1984 (1984-09-29) *

Also Published As

Publication number Publication date
WO1994028445A2 (de) 1994-12-08
DE4317140A1 (de) 1994-11-24

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