DE69421189T2 - Lichtdurchlässiges und streuendes projektionsschirm mit niedriger reflexion - Google Patents

Lichtdurchlässiges und streuendes projektionsschirm mit niedriger reflexion

Info

Publication number
DE69421189T2
DE69421189T2 DE69421189T DE69421189T DE69421189T2 DE 69421189 T2 DE69421189 T2 DE 69421189T2 DE 69421189 T DE69421189 T DE 69421189T DE 69421189 T DE69421189 T DE 69421189T DE 69421189 T2 DE69421189 T2 DE 69421189T2
Authority
DE
Germany
Prior art keywords
transparent
projection screen
low reflection
distributing projection
distributing
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.)
Expired - Fee Related
Application number
DE69421189T
Other languages
English (en)
Other versions
DE69421189D1 (de
Inventor
Dennis Vance
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.)
JENMAR VISUAL SYSTEMS SUNNYVAL
Original Assignee
JENMAR VISUAL SYSTEMS SUNNYVAL
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 JENMAR VISUAL SYSTEMS SUNNYVAL filed Critical JENMAR VISUAL SYSTEMS SUNNYVAL
Publication of DE69421189D1 publication Critical patent/DE69421189D1/de
Application granted granted Critical
Publication of DE69421189T2 publication Critical patent/DE69421189T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C12/00—Powdered glass; Bead compositions
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/206—Filters comprising particles embedded in a solid matrix
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
DE69421189T 1993-09-03 1994-08-31 Lichtdurchlässiges und streuendes projektionsschirm mit niedriger reflexion Expired - Fee Related DE69421189T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/117,250 US5563738A (en) 1993-09-03 1993-09-03 Light transmitting and dispersing filter having low reflectance
PCT/US1994/010012 WO1995006888A2 (en) 1993-09-03 1994-08-31 A light transmitting and dispersing projection screen having low reflectance

Publications (2)

Publication Number Publication Date
DE69421189D1 DE69421189D1 (de) 1999-11-18
DE69421189T2 true DE69421189T2 (de) 2000-02-03

Family

ID=22371789

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69421189T Expired - Fee Related DE69421189T2 (de) 1993-09-03 1994-08-31 Lichtdurchlässiges und streuendes projektionsschirm mit niedriger reflexion

Country Status (7)

Country Link
US (2) US5563738A (de)
EP (1) EP0716754B1 (de)
JP (1) JP3232098B2 (de)
AU (1) AU7682994A (de)
DE (1) DE69421189T2 (de)
TW (1) TW230241B (de)
WO (1) WO1995006888A2 (de)

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US6867928B2 (en) * 2002-08-01 2005-03-15 Jenmar Visual Systems Method and apparatus for correcting visual aberrations in image projection systems
US6807020B2 (en) * 2002-08-01 2004-10-19 Jenmar Visual Systems Lens optimization and color correction for image projection systems
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CN108285746B (zh) * 2017-07-18 2021-07-27 上海全鹰智能科技有限公司 一种具有蓝光防护功能的透明显示膜及其制备方法和具有透明显示膜的投射系统
JP7014048B2 (ja) * 2018-05-21 2022-02-01 日本電信電話株式会社 光接続構造
CN110007552B (zh) * 2018-12-14 2021-07-20 北京宝江科技有限公司 用于投影的透明薄膜和投影系统
TWI734573B (zh) * 2020-07-30 2021-07-21 致伸科技股份有限公司 圖像顯示裝置

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Also Published As

Publication number Publication date
JP3232098B2 (ja) 2001-11-26
WO1995006888A3 (en) 1995-07-13
WO1995006888A2 (en) 1995-03-09
JPH09504882A (ja) 1997-05-13
US5781344A (en) 1998-07-14
AU7682994A (en) 1995-03-22
EP0716754B1 (de) 1999-10-13
US5563738A (en) 1996-10-08
TW230241B (en) 1994-09-11
DE69421189D1 (de) 1999-11-18
EP0716754A1 (de) 1996-06-19

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