CA2428696A1 - Illuminating lens designed by extrinsic differential geometry - Google Patents

Illuminating lens designed by extrinsic differential geometry Download PDF

Info

Publication number
CA2428696A1
CA2428696A1 CA002428696A CA2428696A CA2428696A1 CA 2428696 A1 CA2428696 A1 CA 2428696A1 CA 002428696 A CA002428696 A CA 002428696A CA 2428696 A CA2428696 A CA 2428696A CA 2428696 A1 CA2428696 A1 CA 2428696A1
Authority
CA
Canada
Prior art keywords
lines
illuminating lens
lens designed
differential geometry
source
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
CA002428696A
Other languages
French (fr)
Other versions
CA2428696C (en
Inventor
William A. Parkyn Jr.
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.)
Teledyne Lighting and Display Products Inc
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
Priority claimed from PCT/US2000/042166 external-priority patent/WO2002041065A1/en
Publication of CA2428696A1 publication Critical patent/CA2428696A1/en
Application granted granted Critical
Publication of CA2428696C publication Critical patent/CA2428696C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A grid (100, 200) defining illumination cells (110, 120, 230) having areas to pass light from a source for use in generation of lines, wherein the grid is defined by first lines extending about one axis defined by the source, and second lines emanating from the axis to intersect first lines, each cell having four edges defined by successive of first lines and successive of second lines, the cells having one of the following: (i) equal areas (ii) areas that increase in direction away from the source.
CA002428696A 2000-11-14 2000-11-14 Illuminating lens designed by extrinsic differential geometry Expired - Fee Related CA2428696C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/042166 WO2002041065A1 (en) 1999-05-20 2000-11-14 Illuminating lens designed by extrinsic differential geometry

Publications (2)

Publication Number Publication Date
CA2428696A1 true CA2428696A1 (en) 2002-05-23
CA2428696C CA2428696C (en) 2009-01-13

Family

ID=21742204

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002428696A Expired - Fee Related CA2428696C (en) 2000-11-14 2000-11-14 Illuminating lens designed by extrinsic differential geometry

Country Status (4)

Country Link
EP (1) EP1334395A4 (en)
JP (1) JP2004526222A (en)
AU (1) AU2001230828A1 (en)
CA (1) CA2428696C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7618163B2 (en) * 2007-04-02 2009-11-17 Ruud Lighting, Inc. Light-directing LED apparatus
CN105351886B (en) * 2015-12-09 2023-12-22 欧普照明股份有限公司 Diffusion lens and lighting device with same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222516A (en) * 1963-06-24 1965-12-07 Lancaster Glass Corp Lenticulated lens for traffic light
US5676453A (en) * 1992-04-16 1997-10-14 Tir Technologies, Inc. Collimating TIR lens devices employing fluorescent light sources
JP3341325B2 (en) * 1992-06-19 2002-11-05 株式会社デンソー Lighting equipment for vehicles
JP3337560B2 (en) * 1994-07-21 2002-10-21 株式会社デンソー Lighting equipment for vehicles

Also Published As

Publication number Publication date
CA2428696C (en) 2009-01-13
EP1334395A4 (en) 2007-01-24
AU2001230828A1 (en) 2002-05-27
JP2004526222A (en) 2004-08-26
EP1334395A1 (en) 2003-08-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20121114