CA2418851A1 - Led flashlight - Google Patents

Led flashlight Download PDF

Info

Publication number
CA2418851A1
CA2418851A1 CA002418851A CA2418851A CA2418851A1 CA 2418851 A1 CA2418851 A1 CA 2418851A1 CA 002418851 A CA002418851 A CA 002418851A CA 2418851 A CA2418851 A CA 2418851A CA 2418851 A1 CA2418851 A1 CA 2418851A1
Authority
CA
Canada
Prior art keywords
led
light
flashlight
lens
parabolic reflector
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
CA002418851A
Other languages
French (fr)
Other versions
CA2418851C (en
Inventor
Emil Chan Ka Ming
Ellis Hon Siu Cheong
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.)
Brinkmann Corp
Original Assignee
The Brinkmann Corporation
Emil Chan Ka Ming
Ellis Hon Siu Cheong
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 The Brinkmann Corporation, Emil Chan Ka Ming, Ellis Hon Siu Cheong filed Critical The Brinkmann Corporation
Publication of CA2418851A1 publication Critical patent/CA2418851A1/en
Application granted granted Critical
Publication of CA2418851C publication Critical patent/CA2418851C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • F21L4/022—Pocket lamps
    • F21L4/027—Pocket lamps the light sources being a LED
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/005—Electric lighting devices with self-contained electric batteries or cells the device being a pocket lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F21V13/045—Combinations of only two kinds of elements the elements being reflectors and refractors for portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/006—Refractors for light sources applied to portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

A flashlight (10) configured to durably provide an effective beam of light for extended periods of time. The flashlight (10) features a high-power, directed LED (60) configured to produce a divergent beam of light (64) that is characterized by an optical directivity angle (68) extending from a vertex point. The flashlight includes a lens (14) having a first portion forming a convergent lens (82), where the LED (60) is located such that its vertex point coincides with the lens' focal point. The convergent lens is sized and positioned such that substantially all of the directed light from the LED
passes through the convergent lens portion (82) to emerge in a first beam of parallel light (110). The LED (60) emits additional light (120) through a tip (66). A parabolic reflector (92) has the tip (66) at its focalpoint to reflects the additional light into a second beam of parallel light (122) that is parallel to and surrounding the first beam (110), thus forming a single and more efficient useful beam. The LED (60) and parabolic reflector (92) are formed into an illuminator assembly (16) that is contained within a housing (12,18) of the flashlight so as to hold the LED (60) in alignment with its preferred position with respect to the parabolic reflector (92).
CA002418851A 2000-08-11 2001-06-18 Led flashlight Expired - Fee Related CA2418851C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63734400A 2000-08-11 2000-08-11
US09/637,344 2000-08-11
PCT/US2001/041035 WO2002014738A1 (en) 2000-08-11 2001-06-18 Led flashlight

Publications (2)

Publication Number Publication Date
CA2418851A1 true CA2418851A1 (en) 2002-02-21
CA2418851C CA2418851C (en) 2009-06-16

Family

ID=24555527

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002418851A Expired - Fee Related CA2418851C (en) 2000-08-11 2001-06-18 Led flashlight

Country Status (10)

Country Link
US (2) US6932490B2 (en)
EP (1) EP1307685B1 (en)
JP (1) JP2004507038A (en)
CN (1) CN1459014A (en)
AT (1) ATE370367T1 (en)
CA (1) CA2418851C (en)
DE (1) DE60129987T2 (en)
HK (1) HK1052212A1 (en)
MX (1) MXPA03001295A (en)
WO (1) WO2002014738A1 (en)

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US8093620B2 (en) 2002-12-10 2012-01-10 Galli Robert D LED lighting assembly with improved heat management
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US20060077667A1 (en) * 2004-10-07 2006-04-13 Choon Nang Electrical Appliance Mfy., Ltd. Lighting device
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US20070247867A1 (en) * 2006-04-21 2007-10-25 Sunoptic Technologies Llc Portable LED Light Source for an Endoscope or Boroscope
US7950821B1 (en) 2007-10-26 2011-05-31 Georgitsis Anthony C Auxiliary lighting systems
US20110164430A1 (en) * 2010-01-07 2011-07-07 Kenneth Li Illuminator using light emitting diode light recycling with collimation
CN202253393U (en) * 2011-07-25 2012-05-30 阳西星际科技有限公司 Improved optical stack and electric torch employing same
EP2573452B1 (en) * 2011-09-26 2016-12-28 Max Lux Corp., Ltd. An improved optical package and a torch having the optical package
WO2013192420A1 (en) * 2012-06-20 2013-12-27 Honeywell International Inc. Focusing lens optical modules and led industrial lamps
US20140149488A1 (en) * 2012-11-26 2014-05-29 Nice-Systems Ltd. System and method for engaging a mobile device
CN104214692B (en) * 2013-05-31 2018-08-17 海洋王（东莞）照明科技有限公司 Lamps and lanterns and lamps and lanterns zoom system, pancreatic system
US10352529B2 (en) 2014-04-05 2019-07-16 Whelen Engineering Company, Inc. Collimating optic for LED illumination assembly having transverse slots on emission surface
US9523480B2 (en) 2014-04-05 2016-12-20 Whelen Engineering Company, Inc. LED illumination assembly with collimating optic
WO2015179352A1 (en) 2014-05-19 2015-11-26 Whelen Engineering Company, Inc. Warning light with tinted lens
US10139078B2 (en) 2015-02-19 2018-11-27 Whelen Engineering Company, Inc. Compact optical assembly for LED light sources
US10208914B2 (en) 2015-09-09 2019-02-19 Whelen Engineering Company, Inc. Reflector with concentric interrupted reflecting surfaces
CN105351764A (en) * 2015-12-02 2016-02-24 上海航空电器有限公司 Illumination structure for light guide plate indicator lamp
CZ2017452A3 (en) 2017-08-04 2019-02-13 Varroc Lighting Systems, s.r.o. Optical system for motor vehicle for low visibility lighting, especially in fog, heavy rain or snowfall

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Also Published As

Publication number Publication date
US20060028810A1 (en) 2006-02-09
WO2002014738A1 (en) 2002-02-21
JP2004507038A (en) 2004-03-04
CN1459014A (en) 2003-11-26
ATE370367T1 (en) 2007-09-15
US20040160765A1 (en) 2004-08-19
HK1052212A1 (en) 2003-09-05
DE60129987T2 (en) 2008-05-15
DE60129987D1 (en) 2007-09-27
US7152993B2 (en) 2006-12-26
MXPA03001295A (en) 2003-06-24
CA2418851C (en) 2009-06-16
US6932490B2 (en) 2005-08-23
EP1307685B1 (en) 2007-08-15
EP1307685A1 (en) 2003-05-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160620