FR2387464A1 - Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface - Google Patents

Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface

Info

Publication number
FR2387464A1
FR2387464A1 FR7711431A FR7711431A FR2387464A1 FR 2387464 A1 FR2387464 A1 FR 2387464A1 FR 7711431 A FR7711431 A FR 7711431A FR 7711431 A FR7711431 A FR 7711431A FR 2387464 A1 FR2387464 A1 FR 2387464A1
Authority
FR
France
Prior art keywords
trihedral
matrix
lenses
prisms
catadioptric
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.)
Granted
Application number
FR7711431A
Other languages
French (fr)
Other versions
FR2387464B1 (en
Inventor
Pierre Cibie
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.)
Cibie Projecteurs SA
Original Assignee
Cibie Projecteurs SA
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 Cibie Projecteurs SA filed Critical Cibie Projecteurs SA
Priority to FR7711431A priority Critical patent/FR2387464A1/en
Publication of FR2387464A1 publication Critical patent/FR2387464A1/en
Application granted granted Critical
Publication of FR2387464B1 publication Critical patent/FR2387464B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/002—Arrays of reflective systems
    • 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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The panel reflector has a faceted surface reflecting an incoming light beam through a fixed angle and may be used in image projection generally and including advertising panels and road signs. The panel is based on the use of a matrix of individual lenses, cats - eyes and prisms forming auto - collimators over its surface as trihedral rectangles. Each individual optical assembly presents a hexagonal form about its axis of symmetry. The optical components are mounted on apnel sections supported by a common frame, each such section being about sixty centimeters square, the overall panel thickness being between five and ten centimeters.
FR7711431A 1977-04-15 1977-04-15 Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface Granted FR2387464A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7711431A FR2387464A1 (en) 1977-04-15 1977-04-15 Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7711431A FR2387464A1 (en) 1977-04-15 1977-04-15 Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface

Publications (2)

Publication Number Publication Date
FR2387464A1 true FR2387464A1 (en) 1978-11-10
FR2387464B1 FR2387464B1 (en) 1983-07-22

Family

ID=9189472

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7711431A Granted FR2387464A1 (en) 1977-04-15 1977-04-15 Angled beam reflector panel - has matrix of lenses and prisms and catadioptric trihedral rectangles forming auto-collimator over its surface

Country Status (1)

Country Link
FR (1) FR2387464A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180214A (en) * 1962-08-28 1965-04-27 Aerojet General Co Projection screen
US3551024A (en) * 1969-02-17 1970-12-29 Benjamin H Priest Jr Flashing retrodirective reflector
US3893748A (en) * 1973-11-30 1975-07-08 Eastman Kodak Co Low scintillation, multi-component projection screen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180214A (en) * 1962-08-28 1965-04-27 Aerojet General Co Projection screen
US3551024A (en) * 1969-02-17 1970-12-29 Benjamin H Priest Jr Flashing retrodirective reflector
US3893748A (en) * 1973-11-30 1975-07-08 Eastman Kodak Co Low scintillation, multi-component projection screen

Also Published As

Publication number Publication date
FR2387464B1 (en) 1983-07-22

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Legal Events

Date Code Title Description
ST Notification of lapse