SE464941B - Avmaskningsanordning - Google Patents

Avmaskningsanordning

Info

Publication number
SE464941B
SE464941B SE8901699A SE8901699A SE464941B SE 464941 B SE464941 B SE 464941B SE 8901699 A SE8901699 A SE 8901699A SE 8901699 A SE8901699 A SE 8901699A SE 464941 B SE464941 B SE 464941B
Authority
SE
Sweden
Prior art keywords
window
rulers
ruler
opposite
edge
Prior art date
Application number
SE8901699A
Other languages
English (en)
Swedish (sv)
Other versions
SE8901699D0 (sv
SE8901699L (sv
Inventor
S Stjernswaerd
Original Assignee
Interdidact Audivisuella Ab
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 Interdidact Audivisuella Ab filed Critical Interdidact Audivisuella Ab
Priority to SE8901699A priority Critical patent/SE464941B/sv
Publication of SE8901699D0 publication Critical patent/SE8901699D0/xx
Priority to DE1990850167 priority patent/DE397634T1/de
Priority to EP19900850167 priority patent/EP0397634A3/de
Publication of SE8901699L publication Critical patent/SE8901699L/
Publication of SE464941B publication Critical patent/SE464941B/sv

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
SE8901699A 1989-05-11 1989-05-11 Avmaskningsanordning SE464941B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8901699A SE464941B (sv) 1989-05-11 1989-05-11 Avmaskningsanordning
DE1990850167 DE397634T1 (de) 1989-05-11 1990-05-07 Maskiervorrichtung.
EP19900850167 EP0397634A3 (de) 1989-05-11 1990-05-07 Maskiervorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8901699A SE464941B (sv) 1989-05-11 1989-05-11 Avmaskningsanordning

Publications (3)

Publication Number Publication Date
SE8901699D0 SE8901699D0 (sv) 1989-05-11
SE8901699L SE8901699L (sv) 1990-11-12
SE464941B true SE464941B (sv) 1991-07-01

Family

ID=20375929

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8901699A SE464941B (sv) 1989-05-11 1989-05-11 Avmaskningsanordning

Country Status (3)

Country Link
EP (1) EP0397634A3 (de)
DE (1) DE397634T1 (de)
SE (1) SE464941B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254931A (en) * 1991-04-02 1992-10-21 Howard David Jones A masking frame for use with screens used for cinematic projection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE558414C (de) * 1931-04-30 1932-09-07 Traut G M B H H Mattscheiben- und Bildtraeger fuer photographische Vergroesserungs- und Reproduktionsapparate
US3176578A (en) * 1959-11-20 1965-04-06 Bolsey Emil Optical projection device
DE3233257A1 (de) * 1982-09-08 1984-03-08 Demolux Gmbh & Co Kg, 6070 Langen Overhead-projektor
DE3702877C1 (en) * 1987-01-31 1988-06-30 Pelikan Ag Backing for slide films for overhead projectors

Also Published As

Publication number Publication date
DE397634T1 (de) 1991-04-11
SE8901699D0 (sv) 1989-05-11
EP0397634A2 (de) 1990-11-14
SE8901699L (sv) 1990-11-12
EP0397634A3 (de) 1991-11-06

Similar Documents

Publication Publication Date Title
JPS5359440A (en) Photo deflector
SE456038B (sv) Anordning for indikering av vinkellege
SE464941B (sv) Avmaskningsanordning
US2882791A (en) Binocular telescope in combination with a camera
US3901607A (en) High aperture reflection photodetector apparatus
GB932917A (en) Photo-electric measuring and transposing device
US3709591A (en) Variable photographic mask for maintaining multiple constant proportions of a visible area
US3907280A (en) Flexible sheet handling device
US3864713A (en) Focal plane shutter blade support device
US1645367A (en) Optical projection system
SE438930B (sv) Kassett for en uppteckningsberare i form av ett band och en u-formad adapter som losbart kan anbringas pa kassettholjet for att oka kassettens totala storlek
US1275863A (en) Dissolving apparatus.
DE2048414B2 (de) Vorrichtung zur fotoelektrischen abtastung
US3603800A (en) Telemeter having image flux separator with opaque area at an acute angle with the optical axis
DE579337C (de) Vorrichtung zum gleichzeitigen Aufzeichnen der Stroemungsrichtung, der Stroemungs-geschwindigkeit und gegebenenfalls der Temperatur von Fluessigkeitsstroemungen
US3183776A (en) Mirror cover for reflecting telescopes
US3625608A (en) Photographic reproduction apparatus with automatic focusing
US2456052A (en) Curtain for focal plane shutters
US2741945A (en) Copying camera assembly
JPS6220826Y2 (de)
US4797699A (en) Focal plane shutter
JPS58178343A (ja) 複写機における集束性光伝送体の防塵装置
US2714492A (en) Reeling device
EP0078070B1 (de) Belichtungseinrichtung
US4426146A (en) Focal-plane leaf shutter

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8901699-2

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8901699-2

Format of ref document f/p: F