DK542175A - Dagslysprojektor - Google Patents

Dagslysprojektor

Info

Publication number
DK542175A
DK542175A DK542175A DK542175A DK542175A DK 542175 A DK542175 A DK 542175A DK 542175 A DK542175 A DK 542175A DK 542175 A DK542175 A DK 542175A DK 542175 A DK542175 A DK 542175A
Authority
DK
Denmark
Prior art keywords
daylight
projector
daylight projector
Prior art date
Application number
DK542175A
Other languages
Danish (da)
English (en)
Inventor
G Ritzerfeld
Original Assignee
Ritzerfeld Gerhard
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
Priority claimed from DE19752505316 external-priority patent/DE2505316A1/de
Priority claimed from DE19752515387 external-priority patent/DE2515387A1/de
Application filed by Ritzerfeld Gerhard filed Critical Ritzerfeld Gerhard
Publication of DK542175A publication Critical patent/DK542175A/da

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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • 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)
DK542175A 1975-02-03 1975-12-02 Dagslysprojektor DK542175A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19752505316 DE2505316A1 (de) 1975-02-03 1975-02-03 Tageslichtprojektor
DE19752515387 DE2515387A1 (de) 1975-04-09 1975-04-09 Tageslichtprojektor

Publications (1)

Publication Number Publication Date
DK542175A true DK542175A (da) 1976-08-04

Family

ID=25768471

Family Applications (1)

Application Number Title Priority Date Filing Date
DK542175A DK542175A (da) 1975-02-03 1975-12-02 Dagslysprojektor

Country Status (3)

Country Link
DK (1) DK542175A (show.php)
FR (1) FR2299663A1 (show.php)
GB (1) GB1483300A (show.php)

Also Published As

Publication number Publication date
FR2299663A1 (fr) 1976-08-27
FR2299663B3 (show.php) 1979-10-05
GB1483300A (en) 1977-08-17

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment