GB441319A - Improvements in or relating to light reflectors - Google Patents

Improvements in or relating to light reflectors

Info

Publication number
GB441319A
GB441319A GB36752/34A GB3675234A GB441319A GB 441319 A GB441319 A GB 441319A GB 36752/34 A GB36752/34 A GB 36752/34A GB 3675234 A GB3675234 A GB 3675234A GB 441319 A GB441319 A GB 441319A
Authority
GB
United Kingdom
Prior art keywords
trihedron
refractive
dec
consist
axis
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
GB36752/34A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB441319A publication Critical patent/GB441319A/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
    • 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)
  • Lenses (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

441,319. Reflectors. LERAY, G., 5, Rue Dulaure, Paris. Dec. 21, 1934, No. 36752. Convention date, Dec. 21,1933. [Class 97 (i)] In an autocollimating reflector of he kind comprising a trihedron with its faces mutually at rightangles, the axis SH of the trihedron is inclined to the plane of the base so that a ray I incident at a predetermined angle will after refraction at the base surface be transmitted in a direction parallel to the axis. A reflector formed of a number of units as above may be made of a member of refractive material having one surface formed with a number of trihedral projections the axes of which are parallel and inclined to the refractive member. The refractive material may consist of glass which is shaped by moulding, grinding &c., or of plastic material which is moulded to the required shape. The material may be coloured. Specification 423,464 is referred to. In the Specification as open to inspection under Sect. 91 it is stated that the reflecting element may consist of three triangular mirrors at right-angles to each other, the open face of the trihedron thus formed being closed by refractive material. This subject-matter does not appear in the Specification as accepted.
GB36752/34A 1933-12-21 1934-12-21 Improvements in or relating to light reflectors Expired GB441319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR441319X 1933-12-21

Publications (1)

Publication Number Publication Date
GB441319A true GB441319A (en) 1936-01-16

Family

ID=8900111

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36752/34A Expired GB441319A (en) 1933-12-21 1934-12-21 Improvements in or relating to light reflectors

Country Status (1)

Country Link
GB (1) GB441319A (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215039A (en) * 1961-03-03 1965-11-02 Karl W Flocks Reflex light reflecting sheet
US3975083A (en) * 1974-07-24 1976-08-17 Reflexite Corporation Wide angle retroreflector assembly and method of making same
US5557836A (en) * 1993-10-20 1996-09-24 Minnesota Mining And Manufacturing Company Method of manufacturing a cube corner article
US5564870A (en) * 1993-10-20 1996-10-15 Minnesota Mining And Manufacturing Company Method of manufacturing an asymmetric cube corner article
US5585164A (en) * 1993-10-20 1996-12-17 Minnesota Mining And Manufacturing Company Dual groove set retroreflective cube corner article and method of manufacture
US5600484A (en) * 1993-10-20 1997-02-04 Minnesota Mining And Manufacturing Company Machining techniques for retroreflective cube corner article and method of manufacture
US5696627A (en) * 1993-10-20 1997-12-09 Minnesota Mining And Manufacturing Company Directly machined raised structure retroreflective cube corner article and method of manufacture
US5734501A (en) * 1996-11-01 1998-03-31 Minnesota Mining And Manufacturing Company Highly canted retroreflective cube corner article
US5759468A (en) * 1993-10-20 1998-06-02 Minnesota Mining And Manufacturing Company Raised zone retroreflective cube corner article and method of manufacture
US5764413A (en) * 1995-06-09 1998-06-09 Minnesota Mining And Manufacturing Company Tiled retroreflective sheeting
US5889615A (en) * 1997-06-27 1999-03-30 Minnesota Mining And Manufacturing Company Dual axis retroreflective articles
US5898523A (en) * 1997-07-02 1999-04-27 Minnesota Mining & Manufacturing Company Tiled retroreflective sheeting composed of highly canted cube corner elements
US5936770A (en) * 1996-01-19 1999-08-10 3M Innovative Properties Company Dual orientation retroreflective sheeting
US6021559A (en) * 1996-11-01 2000-02-08 3M Innovative Properties Company Methods of making a cube corner article master mold
US6045230A (en) * 1998-02-05 2000-04-04 3M Innovative Properties Company Modulating retroreflective article
US6055108A (en) * 1999-02-11 2000-04-25 Minnesota Mining And Manufacturing Company Imaging articles and methods using dual-axis retroreflective elements
US6282026B1 (en) 1998-02-05 2001-08-28 3M Innovative Properties Company Retroreflectors having two optical surfaces and varying retroreflectivity
US6318866B1 (en) 2000-03-15 2001-11-20 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retro-reflective sheeting
US6390629B1 (en) 1998-04-22 2002-05-21 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retroreflection sheet
US6685323B1 (en) 1997-11-17 2004-02-03 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retroreflective sheeting
US6802616B2 (en) 1999-12-13 2004-10-12 Nippon Carbide Kogyo Kabushiki Kaisha Triangular pyramid type cube-corner retroreflective element
US6817724B2 (en) 2000-01-31 2004-11-16 Nippon Carbide Kogyo Kabushiki Kaisha Triangular pyramidal cube corner retroreflection element
US6883921B2 (en) 2001-08-09 2005-04-26 Nippon Carbide Kogyo Kabushiki Kaisha Retroreflection device
US6911486B2 (en) 2000-04-11 2005-06-28 Nippon Carbide Kogyo Kabushiki Kaisha Fluorescent retroreflective sheet
US7384161B2 (en) 1999-04-07 2008-06-10 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US8394485B2 (en) 2000-02-25 2013-03-12 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215039A (en) * 1961-03-03 1965-11-02 Karl W Flocks Reflex light reflecting sheet
US3975083A (en) * 1974-07-24 1976-08-17 Reflexite Corporation Wide angle retroreflector assembly and method of making same
US6136416A (en) * 1993-10-20 2000-10-24 3M Innovative Properties Company Raised zone retroreflective cube corner article
US5831767A (en) * 1993-10-20 1998-11-03 Minnesota Mining And Manufacturing Company Asymmetric cube corner article
US5585164A (en) * 1993-10-20 1996-12-17 Minnesota Mining And Manufacturing Company Dual groove set retroreflective cube corner article and method of manufacture
US5600484A (en) * 1993-10-20 1997-02-04 Minnesota Mining And Manufacturing Company Machining techniques for retroreflective cube corner article and method of manufacture
US5696627A (en) * 1993-10-20 1997-12-09 Minnesota Mining And Manufacturing Company Directly machined raised structure retroreflective cube corner article and method of manufacture
US5721640A (en) * 1993-10-20 1998-02-24 Minnesota Mining And Manufacturing Company Multiple structure cube corner article and method of manufacture
US6413615B2 (en) 1993-10-20 2002-07-02 3M Innovative Properties Company Cube corner geometric structures in a substrate formed by both replicating and machining processes
US5759468A (en) * 1993-10-20 1998-06-02 Minnesota Mining And Manufacturing Company Raised zone retroreflective cube corner article and method of manufacture
US5557836A (en) * 1993-10-20 1996-09-24 Minnesota Mining And Manufacturing Company Method of manufacturing a cube corner article
US5959774A (en) * 1993-10-20 1999-09-28 3M Innovative Properties Company Raised structure retroreflective article
US5946134A (en) * 1993-10-20 1999-08-31 Minnesota Mining & Manufacturing Company Raised structure retroreflective article
US5564870A (en) * 1993-10-20 1996-10-15 Minnesota Mining And Manufacturing Company Method of manufacturing an asymmetric cube corner article
US6277470B1 (en) 1993-10-20 2001-08-21 3M Innovative Properties Company Method of forming cube corner geometric structures in a substrate using both replicating and machining processes
US6080340A (en) * 1993-10-20 2000-06-27 3M Innovative Properties Company Machining techniques for retroreflective cube corner article and method of manufacture
US5914813A (en) * 1993-10-20 1999-06-22 3M Innovative Properties Company Multiple structure cube corner article
US5914812A (en) * 1993-10-20 1999-06-22 Minnesota Mining And Manufacturing Company Directly machined raised structure retroreflective cube corner article and method of manufacture
US5926314A (en) * 1995-06-09 1999-07-20 Minnesota Mining And Manufacturing Company Retroreflective cube corner article having scalene base triangles
US5822121A (en) * 1995-06-09 1998-10-13 Minnesota Mining And Manufacturing Company Retroreflective cube corner article having scalene base triangles
US5812315A (en) * 1995-06-09 1998-09-22 Minnesota Mining And Manufacturing Company Cube corner articles exhibiting improved entrance angularity in one or more planes
US5764413A (en) * 1995-06-09 1998-06-09 Minnesota Mining And Manufacturing Company Tiled retroreflective sheeting
US5936770A (en) * 1996-01-19 1999-08-10 3M Innovative Properties Company Dual orientation retroreflective sheeting
US6021559A (en) * 1996-11-01 2000-02-08 3M Innovative Properties Company Methods of making a cube corner article master mold
US5734501A (en) * 1996-11-01 1998-03-31 Minnesota Mining And Manufacturing Company Highly canted retroreflective cube corner article
US5889615A (en) * 1997-06-27 1999-03-30 Minnesota Mining And Manufacturing Company Dual axis retroreflective articles
US5898523A (en) * 1997-07-02 1999-04-27 Minnesota Mining & Manufacturing Company Tiled retroreflective sheeting composed of highly canted cube corner elements
US6685323B1 (en) 1997-11-17 2004-02-03 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retroreflective sheeting
US6045230A (en) * 1998-02-05 2000-04-04 3M Innovative Properties Company Modulating retroreflective article
US6282026B1 (en) 1998-02-05 2001-08-28 3M Innovative Properties Company Retroreflectors having two optical surfaces and varying retroreflectivity
US6390629B1 (en) 1998-04-22 2002-05-21 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retroreflection sheet
US6055108A (en) * 1999-02-11 2000-04-25 Minnesota Mining And Manufacturing Company Imaging articles and methods using dual-axis retroreflective elements
US7384161B2 (en) 1999-04-07 2008-06-10 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US8485672B2 (en) 1999-04-07 2013-07-16 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US7712904B2 (en) 1999-04-07 2010-05-11 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US6802616B2 (en) 1999-12-13 2004-10-12 Nippon Carbide Kogyo Kabushiki Kaisha Triangular pyramid type cube-corner retroreflective element
US6817724B2 (en) 2000-01-31 2004-11-16 Nippon Carbide Kogyo Kabushiki Kaisha Triangular pyramidal cube corner retroreflection element
US8394485B2 (en) 2000-02-25 2013-03-12 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
US8728610B2 (en) 2000-02-25 2014-05-20 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
US8852722B2 (en) 2000-02-25 2014-10-07 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
US6942350B2 (en) 2000-03-15 2005-09-13 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retro-reflective sheeting
US6318866B1 (en) 2000-03-15 2001-11-20 Nippon Carbide Kogyo Kabushiki Kaisha Triangular-pyramidal cube-corner retro-reflective sheeting
US6911486B2 (en) 2000-04-11 2005-06-28 Nippon Carbide Kogyo Kabushiki Kaisha Fluorescent retroreflective sheet
US6883921B2 (en) 2001-08-09 2005-04-26 Nippon Carbide Kogyo Kabushiki Kaisha Retroreflection device

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