SE365622B - - Google Patents

Info

Publication number
SE365622B
SE365622B SE16924/70A SE1692470A SE365622B SE 365622 B SE365622 B SE 365622B SE 16924/70 A SE16924/70 A SE 16924/70A SE 1692470 A SE1692470 A SE 1692470A SE 365622 B SE365622 B SE 365622B
Authority
SE
Sweden
Application number
SE16924/70A
Inventor
Lintic W Mc
Original Assignee
Thorn Lighting Ltd
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 Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Publication of SE365622B publication Critical patent/SE365622B/xx

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
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light
    • 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
    • G03B21/001—Slide projectors
    • 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
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Optical Elements Other Than Lenses (AREA)
SE16924/70A 1969-12-17 1970-12-14 SE365622B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB61558/69A GB1278690A (en) 1969-12-17 1969-12-17 Improvements relating to screen projectors

Publications (1)

Publication Number Publication Date
SE365622B true SE365622B (xx) 1974-03-25

Family

ID=10487170

Family Applications (1)

Application Number Title Priority Date Filing Date
SE16924/70A SE365622B (xx) 1969-12-17 1970-12-14

Country Status (7)

Country Link
US (1) US3768900A (xx)
AT (1) AT309849B (xx)
DE (1) DE2061763A1 (xx)
FR (1) FR2073913A5 (xx)
GB (1) GB1278690A (xx)
SE (1) SE365622B (xx)
ZA (1) ZA708500B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884570A (en) * 1972-01-03 1975-05-20 Personal Communications Inc Reader for reflective background microrecords
US3979160A (en) * 1975-03-03 1976-09-07 Minnesota Mining And Manufacturing Company Compact overhead projector
US4389701A (en) * 1980-10-27 1983-06-21 Optimetrix Corporation Illumination system
DE3228575A1 (de) * 1982-07-30 1984-02-02 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Baueinheit, bestehend aus ellipsoidreflektor und halogengluehlampe
JPS60184250A (ja) * 1984-03-01 1985-09-19 フュージョン・システムズ・コーポレーション セグメント化された反射器を有するランプ
US4739456A (en) * 1986-12-12 1988-04-19 Little William D High intensity pattern/follow spot projector
US4958909A (en) * 1989-11-30 1990-09-25 Yamashita Denso Corporation Method of adjusting light source position in convergence device employing spheroidal mirror
US5272408A (en) * 1991-05-09 1993-12-21 Gte Products Corporation Lamp and reflector assembly
US5179413A (en) * 1992-02-05 1993-01-12 Eastman Kodak Company System for illuminating a linear zone which reduces the effect of light retroflected from outside the zone on the illumination
JPH07306395A (ja) * 1994-05-10 1995-11-21 Nikon Corp 投射装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US17038A (en) * 1857-04-14 Expansive bit
US1248456A (en) * 1916-09-06 1917-12-04 Paul L Clark Projection-machine illumination.
US1502453A (en) * 1921-05-11 1924-07-22 William H Wood Headlight
US3381575A (en) * 1965-12-03 1968-05-07 Sylvania Electric Prod Electric projection lamp

Also Published As

Publication number Publication date
GB1278690A (en) 1972-06-21
US3768900A (en) 1973-10-30
ZA708500B (en) 1971-09-29
FR2073913A5 (xx) 1971-10-01
AT309849B (de) 1973-09-10
DE2061763A1 (de) 1971-06-24

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