AU6389694A - Projection screen - Google Patents

Projection screen

Info

Publication number
AU6389694A
AU6389694A AU63896/94A AU6389694A AU6389694A AU 6389694 A AU6389694 A AU 6389694A AU 63896/94 A AU63896/94 A AU 63896/94A AU 6389694 A AU6389694 A AU 6389694A AU 6389694 A AU6389694 A AU 6389694A
Authority
AU
Australia
Prior art keywords
projection screen
projection
screen
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.)
Abandoned
Application number
AU63896/94A
Inventor
Stig Berglund
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.)
OPTICA NOVA ONAB AB
Original Assignee
OPTICA NOVA ONAB AB
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 OPTICA NOVA ONAB AB filed Critical OPTICA NOVA ONAB AB
Publication of AU6389694A publication Critical patent/AU6389694A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • H04N9/3108—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators by using a single electronic spatial light modulator
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
    • G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Projection Apparatus (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
AU63896/94A 1993-03-23 1994-03-22 Projection screen Abandoned AU6389694A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9300958A SE9300958L (en) 1993-03-23 1993-03-23 Offset projector
SE9300958 1993-03-23
PCT/SE1994/000253 WO1994022049A1 (en) 1993-03-23 1994-03-22 Projection screen

Publications (1)

Publication Number Publication Date
AU6389694A true AU6389694A (en) 1994-10-11

Family

ID=20389328

Family Applications (2)

Application Number Title Priority Date Filing Date
AU63896/94A Abandoned AU6389694A (en) 1993-03-23 1994-03-22 Projection screen
AU63897/94A Abandoned AU6389794A (en) 1993-03-23 1994-03-22 Illumination device for a projector

Family Applications After (1)

Application Number Title Priority Date Filing Date
AU63897/94A Abandoned AU6389794A (en) 1993-03-23 1994-03-22 Illumination device for a projector

Country Status (4)

Country Link
EP (1) EP0733229A1 (en)
AU (2) AU6389694A (en)
SE (1) SE9300958L (en)
WO (2) WO1994022048A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021996A2 (en) * 1995-01-14 1996-07-18 Optica Nova Onab Ab Colour pixel light separation in a projection device
US5701005A (en) * 1995-06-19 1997-12-23 Eastman Kodak Company Color separating diffractive optical array and image sensor
EP1614299A1 (en) 2003-04-16 2006-01-11 Upstream Engineering Oy 2d/3d data projector
FI20030583A (en) 2003-04-16 2004-10-17 Upstream Engineering Oy Beamer
KR20070073543A (en) 2006-01-05 2007-07-10 최해용 High contrast thinfilm reflection type screen
WO2007115664A1 (en) * 2006-04-06 2007-10-18 Oc Oerlikon Balzers Ag Projection illumination system, in which lenses with diffractive optical elements are used.
JP4647029B2 (en) 2006-08-10 2011-03-09 アップストリーム エンジニアリング オーワイ Irradiation method and irradiation device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2004262C3 (en) * 1970-01-30 1975-01-09 Philips Patentverwaltung Gmbh, 2000 Hamburg Projection screen for granulation-free laser beam projection
US3893748A (en) * 1973-11-30 1975-07-08 Eastman Kodak Co Low scintillation, multi-component projection screen
JPS5492234A (en) * 1977-12-28 1979-07-21 Canon Inc Reflection type screen
DD139904A1 (en) * 1978-12-08 1980-01-23 Joerg Neumann PROJECTION SCREEN CONSISTING OF FIELD LENS AND SPREADING DISC
US4268118A (en) * 1979-09-05 1981-05-19 Minnesota Mining And Manufacturing Company Sheeting useful as a projection screen
US4436393A (en) * 1983-01-03 1984-03-13 Minnesota Mining And Manufacturing Company Distortion correction for an overhead projector system
CA1279781C (en) * 1986-05-30 1991-02-05 Curtis S. Laine Projection screen
CA1327468C (en) * 1988-09-12 1994-03-08 Dennis F. Vanderwerf First surface fresnel reflector for liquid crystal display
US5296882A (en) * 1992-12-21 1994-03-22 Minnesota Mining And Manufacturing Company Overhead projector with catadioptric fresnel lens

Also Published As

Publication number Publication date
EP0733229A1 (en) 1996-09-25
AU6389794A (en) 1994-10-11
SE9300958L (en) 1994-09-24
WO1994022049A1 (en) 1994-09-29
SE9300958D0 (en) 1993-03-23
WO1994022048A1 (en) 1994-09-29

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