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FR711495A - Optical projection system - Google Patents

Optical projection system

Info

Publication number
FR711495A
FR711495A FR711495DA FR711495A FR 711495 A FR711495 A FR 711495A FR 711495D A FR711495D A FR 711495DA FR 711495 A FR711495 A FR 711495A
Authority
FR
France
Prior art keywords
projection system
optical projection
optical
projection
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)
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR711495A publication Critical patent/FR711495A/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
    • G03B21/208—Homogenising, shaping of the illumination light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR711495D 1930-02-07 1931-02-05 Optical projection system Expired FR711495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE711495X 1930-02-07

Publications (1)

Publication Number Publication Date
FR711495A true FR711495A (en) 1931-09-10

Family

ID=6620639

Family Applications (1)

Application Number Title Priority Date Filing Date
FR711495D Expired FR711495A (en) 1930-02-07 1931-02-05 Optical projection system

Country Status (1)

Country Link
FR (1) FR711495A (en)

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