BR8807123A - Lanterna de projecao catadioptrica - Google Patents

Lanterna de projecao catadioptrica

Info

Publication number
BR8807123A
BR8807123A BR888807123A BR8807123A BR8807123A BR 8807123 A BR8807123 A BR 8807123A BR 888807123 A BR888807123 A BR 888807123A BR 8807123 A BR8807123 A BR 8807123A BR 8807123 A BR8807123 A BR 8807123A
Authority
BR
Brazil
Prior art keywords
catadioptric projection
projection lantern
lantern
catadioptric
projection
Prior art date
Application number
BR888807123A
Other languages
English (en)
Inventor
Kenneth H Fischbeck
Paul A Hoisington
Original Assignee
Spectra 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 Spectra Inc filed Critical Spectra Inc
Publication of BR8807123A publication Critical patent/BR8807123A/pt

Links

Classifications

    • 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
    • G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
    • 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)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
BR888807123A 1987-07-10 1988-07-01 Lanterna de projecao catadioptrica BR8807123A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/072,116 US4775232A (en) 1987-07-10 1987-07-10 Catadioptric projection lantern
PCT/US1988/002237 WO1989000715A1 (en) 1987-07-10 1988-07-01 Catadioptric projection lantern

Publications (1)

Publication Number Publication Date
BR8807123A true BR8807123A (pt) 1989-10-17

Family

ID=22105684

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888807123A BR8807123A (pt) 1987-07-10 1988-07-01 Lanterna de projecao catadioptrica

Country Status (7)

Country Link
US (1) US4775232A (pt)
EP (1) EP0326596A4 (pt)
JP (1) JPH01502542A (pt)
KR (1) KR890702073A (pt)
BR (1) BR8807123A (pt)
CA (1) CA1310212C (pt)
WO (1) WO1989000715A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5296882A (en) * 1992-12-21 1994-03-22 Minnesota Mining And Manufacturing Company Overhead projector with catadioptric fresnel lens
US20070091452A1 (en) * 2005-10-25 2007-04-26 Scott Lerner Projection system and method
JP5729584B2 (ja) * 2010-04-15 2015-06-03 スタンレー電気株式会社 車両用反射器及びリフレックスピン
US8974045B2 (en) 2011-04-13 2015-03-10 Fujifilm Dimatix, Inc. Phase-change ink jetting

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743834A (en) * 1925-07-29 1930-01-14 Jonathan C Stimson Reflecting device
US3293982A (en) * 1964-09-28 1966-12-27 Minnesota Mining & Mfg Overhead projector with an unsymmetrical reflective supporting stage
US3401593A (en) * 1965-10-11 1968-09-17 Altman Gerald Projection system for reflected images utilizing polarized light
JPS4827695B1 (pt) * 1968-03-21 1973-08-24
US3525566A (en) * 1968-07-24 1970-08-25 Gerald Altman Projection devices and graphic materials therefor
US3935359A (en) * 1972-06-23 1976-01-27 Rowland Development Corporation Retroreflective sheeting and method and apparatus for producing same
US4118761A (en) * 1977-02-28 1978-10-03 Bausch & Lomb Incorporated Light condensing illuminator
US4618518A (en) * 1984-08-10 1986-10-21 Amerace Corporation Retroreflective sheeting and methods for making same

Also Published As

Publication number Publication date
EP0326596A1 (en) 1989-08-09
JPH01502542A (ja) 1989-08-31
US4775232A (en) 1988-10-04
CA1310212C (en) 1992-11-17
WO1989000715A1 (en) 1989-01-26
KR890702073A (ko) 1989-12-22
EP0326596A4 (en) 1989-11-07

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Legal Events

Date Code Title Description
FD3 Appl. lapsed due to non-payment of renewal fee