WO2004088199A3 - Flashlight - Google Patents

Flashlight Download PDF

Info

Publication number
WO2004088199A3
WO2004088199A3 PCT/US2004/008472 US2004008472W WO2004088199A3 WO 2004088199 A3 WO2004088199 A3 WO 2004088199A3 US 2004008472 W US2004008472 W US 2004008472W WO 2004088199 A3 WO2004088199 A3 WO 2004088199A3
Authority
WO
WIPO (PCT)
Prior art keywords
led
housing section
flashlight
front housing
lenses
Prior art date
Application number
PCT/US2004/008472
Other languages
French (fr)
Other versions
WO2004088199A2 (en
Inventor
Leonard T Chapman
Original Assignee
Chapman Leonard Studio Equip
Leonard T Chapman
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
Priority claimed from US10/397,766 external-priority patent/US7147343B2/en
Application filed by Chapman Leonard Studio Equip, Leonard T Chapman filed Critical Chapman Leonard Studio Equip
Priority to EP04758160A priority Critical patent/EP1613892A4/en
Priority to CA002519913A priority patent/CA2519913C/en
Publication of WO2004088199A2 publication Critical patent/WO2004088199A2/en
Publication of WO2004088199A3 publication Critical patent/WO2004088199A3/en

Links

Classifications

    • 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
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
    • F21V23/0421—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices the switch being part of, or disposed on the tail cap portion thereof
    • 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 has a lens (14) or lenses (526,302; 606, 604, 602) moveable relative to one or more LED (50, 306) or other light source. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lenses are supported on a front housing section (16) and the LED is supported on a back housing section (20) threaded onto the front housing section. Twisting the front housing section closes a switch (60) providing power to the LED, to turn the flashlight on. One or more circuit modules (15, 254, 314) within the flashlight provides various operating modes including an automatic shut-off timer, to preserve battery life, a dimmer controlled by turning an end cap, a blinking function, and/or a current control function to provide maximum brightness regardless of battery condition.
PCT/US2004/008472 2003-03-25 2004-03-19 Flashlight WO2004088199A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04758160A EP1613892A4 (en) 2003-03-25 2004-03-19 Flashlight
CA002519913A CA2519913C (en) 2003-03-25 2004-03-19 Flashlight

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/397,766 US7147343B2 (en) 2003-03-25 2003-03-25 Flashlight
US10/397,766 2003-03-25
US10/644,392 US20040190286A1 (en) 2003-03-25 2003-08-19 Flashlight
US10/644,392 2003-08-19

Publications (2)

Publication Number Publication Date
WO2004088199A2 WO2004088199A2 (en) 2004-10-14
WO2004088199A3 true WO2004088199A3 (en) 2005-11-17

Family

ID=33134788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/008472 WO2004088199A2 (en) 2003-03-25 2004-03-19 Flashlight

Country Status (4)

Country Link
US (2) US20040190286A1 (en)
EP (1) EP1613892A4 (en)
CA (1) CA2519913C (en)
WO (1) WO2004088199A2 (en)

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Also Published As

Publication number Publication date
EP1613892A4 (en) 2010-05-05
CA2519913A1 (en) 2004-10-14
US20040190286A1 (en) 2004-09-30
WO2004088199A2 (en) 2004-10-14
US7083299B2 (en) 2006-08-01
EP1613892A2 (en) 2006-01-11
CA2519913C (en) 2010-01-19
US20050088843A1 (en) 2005-04-28

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