CA2428696A1 - Illuminating lens designed by extrinsic differential geometry - Google Patents
Illuminating lens designed by extrinsic differential geometry Download PDFInfo
- 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
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.
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 (3)
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 |
CN116293525A (en) * | 2022-12-31 | 2023-06-23 | 中国人民解放军空军特色医学中心 | Method and device for realizing uniform irradiance distribution of LED |
Family Cites Families (4)
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 |
-
2000
- 2000-11-14 CA CA002428696A patent/CA2428696C/en not_active Expired - Fee Related
- 2000-11-14 JP JP2002542931A patent/JP2004526222A/en active Pending
- 2000-11-14 AU AU2001230828A patent/AU2001230828A1/en not_active Abandoned
- 2000-11-14 EP EP00991028A patent/EP1334395A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CA2428696C (en) | 2009-01-13 |
EP1334395A1 (en) | 2003-08-13 |
EP1334395A4 (en) | 2007-01-24 |
JP2004526222A (en) | 2004-08-26 |
AU2001230828A1 (en) | 2002-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20121114 |