CA2401461A1 - Led light source with field-of-view-controlling optics - Google Patents

Led light source with field-of-view-controlling optics Download PDF

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Publication number
CA2401461A1
CA2401461A1 CA002401461A CA2401461A CA2401461A1 CA 2401461 A1 CA2401461 A1 CA 2401461A1 CA 002401461 A CA002401461 A CA 002401461A CA 2401461 A CA2401461 A CA 2401461A CA 2401461 A1 CA2401461 A1 CA 2401461A1
Authority
CA
Canada
Prior art keywords
view
field
miniature
intensity
light 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
CA002401461A
Other languages
French (fr)
Other versions
CA2401461C (en
Inventor
William A. Parkyn
David G. Pelka
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
Publication of CA2401461A1 publication Critical patent/CA2401461A1/en
Application granted granted Critical
Publication of CA2401461C publication Critical patent/CA2401461C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
    • H01L2224/732—Location after the connecting process
    • H01L2224/73251—Location after the connecting process on different surfaces
    • H01L2224/73265—Layer and wire connectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

Pixels for a large video display which employs solid-state emitters, such as colored light emitting diodes, as light source are formed by outfitting each colored solid state emitter within the pixel with an individually tailored miniature intensity-enhancing optical system. Each of these miniature optical systems comprises a set of four wide field-of-view Lambertian reflectors (34), a pair of narrow field-of-view Lambertian reflectors (36), and a beam-shaping lens (38). The miniature intensity-enhancing optical system can be specifically designed to restrict emission in the vertical field-of-view, while providing a Lambertian intensity dependence throughout an unrestricted horizontal view. For example, the field-of-view in the vertical direction may be limited to about ~ 30° while the field-of-view is about ~ 90° in the horizontal direction.
CA002401461A 2000-03-06 2001-03-06 Led light source with field-of-view-controlling optics Expired - Fee Related CA2401461C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US18745800P 2000-03-06 2000-03-06
US60/187,458 2000-03-06
PCT/US2001/007248 WO2001067427A2 (en) 2000-03-06 2001-03-06 Led light source with field-of-view-controlling optics

Publications (2)

Publication Number Publication Date
CA2401461A1 true CA2401461A1 (en) 2001-09-13
CA2401461C CA2401461C (en) 2008-06-03

Family

ID=22689081

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002401461A Expired - Fee Related CA2401461C (en) 2000-03-06 2001-03-06 Led light source with field-of-view-controlling optics

Country Status (8)

Country Link
US (1) US6603243B2 (en)
EP (1) EP1264298B1 (en)
JP (1) JP2003526121A (en)
AT (1) ATE350739T1 (en)
AU (1) AU2001243474A1 (en)
CA (1) CA2401461C (en)
DE (1) DE60125732T2 (en)
WO (1) WO2001067427A2 (en)

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Also Published As

Publication number Publication date
CA2401461C (en) 2008-06-03
EP1264298B1 (en) 2007-01-03
US20020017844A1 (en) 2002-02-14
US6603243B2 (en) 2003-08-05
EP1264298A2 (en) 2002-12-11
WO2001067427A2 (en) 2001-09-13
WO2001067427A3 (en) 2002-09-26
ATE350739T1 (en) 2007-01-15
JP2003526121A (en) 2003-09-02
DE60125732T2 (en) 2007-10-25
DE60125732D1 (en) 2007-02-15
AU2001243474A1 (en) 2001-09-17

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