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GB1458434A - Retrodirective reflector - Google Patents

Retrodirective reflector

Info

Publication number
GB1458434A
GB1458434A GB1380874A GB1380874A GB1458434A GB 1458434 A GB1458434 A GB 1458434A GB 1380874 A GB1380874 A GB 1380874A GB 1380874 A GB1380874 A GB 1380874A GB 1458434 A GB1458434 A GB 1458434A
Authority
GB
United Kingdom
Prior art keywords
reflector
intersections
degrees
elements
faces
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.)
Expired
Application number
GB1380874A
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.)
Amerace Corp
Original Assignee
Amerace Corp
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 Amerace Corp filed Critical Amerace Corp
Publication of GB1458434A publication Critical patent/GB1458434A/en
Expired 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
    • 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

Landscapes

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

Abstract

1458434 Reflex reflectors AMERACE CORP 28 March 1974 [22 May 1973] 13808/74 Heading G2J A reflex reflector comprises a body of transparent material having a flat front face and a plurality of reflector elements 40 on the rear face, each element 40 having three faces 41, 42, 43 which intersect at 44, 45, 46 to form dihedral angles, those at intersections 44, 46 being substantially 90 degrees while that at intersection 45 is greater than 90 degrees. The intersections 45 of the elements lie in parallel planes and the dihedral angles at these intersections may be 90 degrees 30. The faces 42, 43, 44 of each element may have cylindrical curvature. The reflector may also include conventional cube-corner reflector elements.
GB1380874A 1973-05-22 1974-03-28 Retrodirective reflector Expired GB1458434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00362653A US3833285A (en) 1973-05-22 1973-05-22 Retrodirective reflector visible over wide range of observation angles

Publications (1)

Publication Number Publication Date
GB1458434A true GB1458434A (en) 1976-12-15

Family

ID=23426988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1380874A Expired GB1458434A (en) 1973-05-22 1974-03-28 Retrodirective reflector

Country Status (6)

Country Link
US (1) US3833285A (en)
CA (1) CA996529A (en)
DE (1) DE2419629A1 (en)
FR (1) FR2231020B1 (en)
GB (1) GB1458434A (en)
IT (1) IT1014202B (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU560276B2 (en) * 1983-09-12 1987-04-02 Minnesota Mining And Manufacturing Company Cube-corner retroreflective articles
US4775219A (en) 1986-11-21 1988-10-04 Minnesota Mining & Manufacturing Company Cube-corner retroreflective articles having tailored divergence profiles
US4938563A (en) * 1986-11-21 1990-07-03 Minnesota Mining And Manufacturing Company High efficiency cube corner retroflective material
US4726134A (en) * 1986-11-21 1988-02-23 Minnesota Mining And Manufacturing Company Roadway sign
US4895428A (en) * 1988-07-26 1990-01-23 Minnesota Mining And Manufacturing Company High efficiency retroreflective material
US5122902A (en) * 1989-03-31 1992-06-16 Minnesota Mining And Manufacturing Company Retroreflective articles having light-transmissive surfaces
US5138488A (en) * 1990-09-10 1992-08-11 Minnesota Mining And Manufacturing Company Retroreflective material with improved angularity
FR2674637B1 (en) * 1991-03-28 1993-07-16 Aerospatiale LARGE DISTANCE LASER TELEMETRY DEVICE.
CA2060703C (en) * 1992-02-05 1995-10-17 Italo Caroli Lens and method of making same
US5393166A (en) * 1993-05-10 1995-02-28 Target Recycling Inc. Reflective marker from recyclable material
FR2714737B1 (en) * 1993-12-31 1996-03-29 Aerospatiale Retroreflector for laser geodesy, with omnidirectional speed aberration correction.
US6015214A (en) 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes
US6253442B1 (en) * 1997-07-02 2001-07-03 3M Innovative Properties Company Retroreflective cube corner sheeting mold and method for making the same
US5981032A (en) * 1997-07-02 1999-11-09 3M Innovative Properties Company Retroreflective cube corner sheeting mold and sheeting formed therefrom
JP2001517809A (en) * 1997-09-25 2001-10-09 ミネソタ マイニング アンド マニュファクチャリング カンパニー Dual use reflective article
WO1999015920A1 (en) * 1997-09-25 1999-04-01 Minnesota Mining And Manufacturing Company Reflective article incorporating highly nonorthogonal reflecting surfaces
US6036322A (en) * 1997-12-01 2000-03-14 Reflexite Corporation Multi-orientation retroreflective structure
DE10119671A1 (en) * 2001-04-20 2002-10-24 Sen Hans-Erich Gubela Deflecting mirror structure consisting of a large number of triples
AU2002312427A1 (en) * 2001-06-11 2002-12-23 Avery Dennison Corporation Retroreflector with controlled divergence made by the method of groove undulation
DE10216579A1 (en) * 2002-04-14 2003-10-23 Sen Hans-Erich Gubela Wide-angle sensor system with triple reflector and production of the tools
US7018573B2 (en) * 2002-10-08 2006-03-28 Eastman Kodak Company Method for making a modified cube corner retro-reflective screen
US6871966B2 (en) * 2002-12-12 2005-03-29 Avery Dennison Corporation Retroreflector with controlled divergence made by the method of localized substrate stress
US7152983B2 (en) 2003-03-06 2006-12-26 3M Innovative Properties Company Lamina comprising cube corner elements and retroreflective sheeting
KR20120007553A (en) 2003-03-06 2012-01-20 쓰리엠 이노베이티브 프로퍼티즈 캄파니 Lamina and Retroreflective Sheets with Cube Corner Elements
US7370981B2 (en) 2003-12-24 2008-05-13 Avery Dennison Corporation Cube corner retroreflector with limited range
WO2006138129A1 (en) * 2005-06-16 2006-12-28 Avery Dennison Corporation Retroreflective sheet structure
DE102005063331A1 (en) * 2005-06-23 2006-12-28 Imos Gubela Gmbh Light reflecting triplet, for light barrier corner reflectors, has three mirror surfaces with light entries part covered with diffraction pattern carrying covers
BRPI0616423B8 (en) * 2005-09-26 2018-09-04 Avery Dennison Corp retro-reflective laminated material
US10989845B2 (en) * 2006-07-17 2021-04-27 Avery Dennison Corporation Method of making an array of aberrated optical elements
US7506987B2 (en) * 2007-03-02 2009-03-24 Technology Solutions & Invention Llc Two-sided corner-cube retroreflectors and methods of manufacturing the same
US8388154B2 (en) * 2007-08-24 2013-03-05 Nippon Carbide Industries Co., Inc. Cube-corner retroreflective article
US9124004B2 (en) * 2012-05-10 2015-09-01 Roy Rard Low profile conforming radar reflector
US20160011346A1 (en) 2014-07-14 2016-01-14 Sergiy Vasylyev High incidence angle retroreflective sheeting
WO2017156448A1 (en) * 2016-03-11 2017-09-14 Mirraviz, Inc. Customized reflection profiles for retro-reflective display system optimization
WO2018151959A1 (en) 2017-02-14 2018-08-23 3M Innovative Properties Company End milling methods for making microstructures, especially cube corner elements and articles comprising such microstructures
US10444615B2 (en) * 2017-08-29 2019-10-15 Avery Dennison Corporation Retroreflective sheeting for projector-based display system
DE102018112043B4 (en) 2018-05-18 2022-01-13 Hans-Erich Gubela Arrangement of a retroreflector with optical elements
US11280659B2 (en) * 2019-08-23 2022-03-22 Endress+Hauser SE+Co. KG Reflector for radar-based fill level detection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR559726A (en) * 1922-01-12 1923-09-20 Reflector refinements
US1671086A (en) * 1923-07-09 1928-05-22 Jonathan C Stimson Reflecting device
US2029375A (en) * 1931-02-26 1936-02-04 W P Montgomery Reflector
US2055298A (en) * 1932-12-31 1936-09-22 Leray Gustave Light reflector
US2216325A (en) * 1939-04-21 1940-10-01 Nat Colortype Company Prismatic reflecting structure
US2682807A (en) * 1949-12-10 1954-07-06 Gen Motors Corp Signal reflector
FR1240121A (en) * 1959-07-29 1960-09-02 E Manducher & Co Sa Wide field translucent tetrahedral reflector
FR1270464A (en) * 1960-10-19 1961-08-25 Catadioptric reflector

Also Published As

Publication number Publication date
DE2419629A1 (en) 1974-12-12
IT1014202B (en) 1977-04-20
FR2231020A1 (en) 1974-12-20
CA996529A (en) 1976-09-07
US3833285A (en) 1974-09-03
FR2231020B1 (en) 1979-09-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
427A Application made for restoration (sect. 27/1949)
427C Application for amendment of specification now open to opposition (sect. 27/1949)
427B Order made restoring the patent (sect. 27/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930328