DE236217C - - Google Patents

Info

Publication number
DE236217C
DE236217C DENDAT236217D DE236217DA DE236217C DE 236217 C DE236217 C DE 236217C DE NDAT236217 D DENDAT236217 D DE NDAT236217D DE 236217D A DE236217D A DE 236217DA DE 236217 C DE236217 C DE 236217C
Authority
DE
Germany
Prior art keywords
attached
darkroom
flashlight
view
projection lens
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.)
Active
Application number
DENDAT236217D
Other languages
German (de)
English (en)
Publication of DE236217C publication Critical patent/DE236217C/de
Active 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
    • G03B21/26—Projecting separately subsidiary matter simultaneously with main image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
DENDAT236217D Active DE236217C (enExample)

Publications (1)

Publication Number Publication Date
DE236217C true DE236217C (enExample)

Family

ID=495919

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT236217D Active DE236217C (enExample)

Country Status (1)

Country Link
DE (1) DE236217C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441866A1 (fr) * 1978-11-14 1980-06-13 Vitrac Jean Pierre Dispositif portatif de projection optique d'images sur un ecran

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441866A1 (fr) * 1978-11-14 1980-06-13 Vitrac Jean Pierre Dispositif portatif de projection optique d'images sur un ecran

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