GB441319A - Improvements in or relating to light reflectors - Google Patents
Improvements in or relating to light reflectorsInfo
- Publication number
- GB441319A GB441319A GB3675234A GB3675234A GB441319A GB 441319 A GB441319 A GB 441319A GB 3675234 A GB3675234 A GB 3675234A GB 3675234 A GB3675234 A GB 3675234A GB 441319 A GB441319 A GB 441319A
- Authority
- GB
- Grant status
- Application
- Patent type
- Prior art keywords
- material
- refractive
- specification
- formed
- trihedron
- 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
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
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.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR441319X | 1933-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB441319A true true GB441319A (en) | 1936-01-16 |
Family
ID=8900111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3675234A 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)
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)
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 |
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 |
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 |
US5557836A (en) * | 1993-10-20 | 1996-09-24 | Minnesota Mining And Manufacturing Company | Method of manufacturing a cube corner article |
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 |
US6136416A (en) * | 1993-10-20 | 2000-10-24 | 3M Innovative Properties Company | Raised zone retroreflective cube corner article |
US6080340A (en) * | 1993-10-20 | 2000-06-27 | 3M Innovative Properties Company | Machining techniques for retroreflective cube corner article and method of manufacture |
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 |
US5831767A (en) * | 1993-10-20 | 1998-11-03 | Minnesota Mining And Manufacturing Company | Asymmetric 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 |
US5914813A (en) * | 1993-10-20 | 1999-06-22 | 3M Innovative Properties Company | Multiple structure cube corner article |
US5600484A (en) * | 1993-10-20 | 1997-02-04 | Minnesota Mining And Manufacturing Company | Machining techniques for retroreflective cube corner article and method of manufacture |
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 |
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 |
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 |
US6282026B1 (en) | 1998-02-05 | 2001-08-28 | 3M Innovative Properties Company | Retroreflectors having two optical surfaces and varying retroreflectivity |
US6045230A (en) * | 1998-02-05 | 2000-04-04 | 3M Innovative Properties Company | Modulating retroreflective article |
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 |
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 |
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 |
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 |
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 |
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 |
US6318866B1 (en) | 2000-03-15 | 2001-11-20 | Nippon Carbide Kogyo Kabushiki Kaisha | Triangular-pyramidal cube-corner retro-reflective sheeting |
US6942350B2 (en) | 2000-03-15 | 2005-09-13 | 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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