NL7603525A - Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements - Google Patents

Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements

Info

Publication number
NL7603525A
NL7603525A NL7603525A NL7603525A NL7603525A NL 7603525 A NL7603525 A NL 7603525A NL 7603525 A NL7603525 A NL 7603525A NL 7603525 A NL7603525 A NL 7603525A NL 7603525 A NL7603525 A NL 7603525A
Authority
NL
Netherlands
Prior art keywords
light source
light
driving elements
projection screen
training unit
Prior art date
Application number
NL7603525A
Other languages
Dutch (nl)
Original Assignee
Decca Ltd
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 Decca Ltd filed Critical Decca Ltd
Priority to NL7603525A priority Critical patent/NL7603525A/en
Publication of NL7603525A publication Critical patent/NL7603525A/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00—Simulators for teaching or training purposes
    • G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
    • G09B9/06—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of ships, boats, or other waterborne vehicles
    • G09B9/063—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of ships, boats, or other waterborne vehicles by using visual displays
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The screen projection is of a movable light spot for training equipment in navigation, and uses a unit, with adjustable opening and a light source which illuminates this opening. The unit contains two movable elements. Each element has a transparent slot (19, 20) for the light from the light source. The two slots (19, 20) intersect in a point (18) which represents the opening. Driving elements (25) move the two elements independent of each other and thus displace the opening. Each of the two elements contains a plate which up to a thin, straight transparent line does not transmit light. The line forms the slot. The plates are adjacent to each other.
NL7603525A 1976-04-05 1976-04-05 Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements NL7603525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7603525A NL7603525A (en) 1976-04-05 1976-04-05 Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7603525A NL7603525A (en) 1976-04-05 1976-04-05 Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements

Publications (1)

Publication Number Publication Date
NL7603525A true NL7603525A (en) 1977-10-07

Family

ID=19825944

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7603525A NL7603525A (en) 1976-04-05 1976-04-05 Navigation training unit using light spot projector - has light source, projection screen and adjustable opening controlled by independent driving elements

Country Status (1)

Country Link
NL (1) NL7603525A (en)

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