FR972902A - Combination reflector for image projection devices - Google Patents

Combination reflector for image projection devices

Info

Publication number
FR972902A
FR972902A FR972902DA FR972902A FR 972902 A FR972902 A FR 972902A FR 972902D A FR972902D A FR 972902DA FR 972902 A FR972902 A FR 972902A
Authority
FR
France
Prior art keywords
image projection
projection devices
combination reflector
reflector
combination
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
Application number
Other languages
French (fr)
Inventor
Andre-Leon-Victor-Cl Debrie
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 filed Critical
Application granted granted Critical
Publication of FR972902A publication Critical patent/FR972902A/en
Expired legal-status Critical Current

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
    • G03B21/2066—Reflectors in illumination beam

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR972902D 1941-06-06 1941-06-06 Combination reflector for image projection devices Expired FR972902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972902T 1941-06-06

Publications (1)

Publication Number Publication Date
FR972902A true FR972902A (en) 1951-02-05

Family

ID=9516360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972902D Expired FR972902A (en) 1941-06-06 1941-06-06 Combination reflector for image projection devices

Country Status (1)

Country Link
FR (1) FR972902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020346A1 (en) * 1990-06-22 1992-01-02 Siemens Ag Reflector for optical line scanner in imaging appts. - has window aligned with external reflection surface and spaced exit opening to provide two perpendicular beams
US5217299A (en) * 1990-09-04 1993-06-08 Asahi Kogaku Kogyo Kabushiki Kaisha Reflection type lighting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020346A1 (en) * 1990-06-22 1992-01-02 Siemens Ag Reflector for optical line scanner in imaging appts. - has window aligned with external reflection surface and spaced exit opening to provide two perpendicular beams
US5217299A (en) * 1990-09-04 1993-06-08 Asahi Kogaku Kogyo Kabushiki Kaisha Reflection type lighting apparatus

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