EP2149739A1 - Lampe torche - Google Patents
Lampe torche Download PDFInfo
- Publication number
- EP2149739A1 EP2149739A1 EP09006052A EP09006052A EP2149739A1 EP 2149739 A1 EP2149739 A1 EP 2149739A1 EP 09006052 A EP09006052 A EP 09006052A EP 09006052 A EP09006052 A EP 09006052A EP 2149739 A1 EP2149739 A1 EP 2149739A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp support
- light
- adjustment member
- flashlight
- conducting component
- 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
Images
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
- F21L4/005—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
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/80—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with pins or wires
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
- F21V14/025—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources in portable lighting devices
-
- 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]
Definitions
- the present invention relates to a flashlight, more particularly one, which is structured in such a manner that waste heat produced from shining of the light source can be efficiently conducted away, and the user is allowed to adjust a position of a focal point of light emitted from the light source.
- High-power light emitting diodes have been developed, and gain popularity for household illumination and emergency illumination. Flashlights are among the common emergency illumination devices.
- Such emergency flashlights have relatively high intensity owing to the high-power light emitting diodes.
- the high-power light emitting diodes will produce a large amount of waste heat when they are shining.
- the light emitting diodes will become very hot and less efficient, and can even get damaged if the waste heat isn't effectively dissipated.
- commercially available flashlights can't be adjusted in the position of the focal point of light emitted therefrom according to the users' needs.
- a flashlight in accordance with an embodiment of the present invention includes a lamp support, an electric light-generating mechanism in the lamp support, a covering member around the lamp support, a barrel body joined on the covering member, a power supply held in the barrel body, and an adjustment member.
- the adjustment member is threadedly joined in the lamp support, and can be turned to adjust a position of a focal point of light emitted from a light source of the light-generating mechanism.
- Front and rear heat-conducting components are positioned on front and rear ends of the light-generating mechanism respectively, and they contact the lamp support and the barrel body respectively; when the light source is shining, heat produced by the electric light-generating mechanism will be conducted away from the front heat-conducting component to the lamp support as well as from the rear heat-conducting component to the barrel body. Therefore, the light source is prevented from being damaged by the heat produced from it continuing shining for an extended length of time.
- a flashlight of the present invention includes a lamp support 1, an electric light generating mechanism 2, a front heat-conducting component 3, a rear heat-conducting component 4, an adjustment member 5 for adjusting a position of a focal point of light emitted from a light source, a barrel body 6, a power supplying mechanism 7, and a covering member 8.
- the lamp support 1 has a light-reflecting cup 11, and a joining part 12;
- the light-reflecting cup 11 is substantially in the shape of a hom, and adjoins a front end of the joining part 12, and it further communicates with the joining part 12;
- the joining part 12 has a threaded portion 122 on a rear end thereof, and a locating groove 121 on the front end.
- the electric light-generating mechanism 2 is held in the joining part 12 of the lamp support 1, and includes a circuit board 21, and a light source 22 joined on the circuit board 21; the circuit board 21 has a controlling circuit thereon; the light source 22 is a light emitting diode.
- the front heat-conducting component 3 is a metallic spring, and is positioned in the joining part 12 of the lamp support 2 with one end thereof being held in the locating groove 121 of the joining part 12, and the other end contacting the circuit board 21 of the electric light-generating mechanism 2 so as to bias the circuit board 21 towards a rear end of the lamp support 1.
- the rear heat-conducting component 4 is a metallic spring, and it is propped against the focal distance adjustment member 5 at a front end, and contacts the barrel body 6 at a rear end thereof.
- the adjustment member 5 is like a ring.
- the adjustment member 5 has a threaded portion 51, and an annular groove 52 an outer circumferential side thereof.
- the adjustment member 5 is threadedly joined on the threaded portion 122 of the rear portion of the lamp support 1 at the threaded portion 51 thereof. Therefore, the front heat-conducting component 3 makes the circuit board 21 of the electric light-generating mechanism 2 constantly contact the adjustment member 5.
- the front end of the rear heat-conducting component 4 is embedded in the annular groove 52 of the adjustment member 5.
- the barrel body 6 is hollow, and has a button switch 61 fitted on a rear end; the button switch 61 is electrically connected to the power supply mechanism 7 as well as the controlling circuit on the circuit board 21 of the electric light-generating mechanism 2 to turn on or turn off the light source 22 of the electric light-generating mechanism 2.
- the power supplying mechanism 7 is held in the barrel body 6 to supply electricity to the electric light-generating mechanism 2.
- the covering member 8 is positioned around the light-reflecting cup 11 of the lamp support 1, and joined on a front end of the barrel body 6; thus, the lamp support 1 and the electric light-generating mechanism 2 are held in the covering member 8 and the barrel body 6.
- the adjustment member 5 can be turned to change the position of the electric light-generating mechanism 2 in relation to the lamp support 1 so as to adjust the position of the focal point of light emitted from the light source 22 of the electric light-generating mechanism 2 after the barrel body 6 and the covering member 8 have been separated, and the lamp support 1 taken out; when the adjustment member 5 is turned, the electric light-generating mechanism 2 will move relative to the lamp support 1 together with the adjustment member 5.
- heat produced by the electric light-generating mechanism 2 will be conducted away from the front heat-conducting component 3 to the lamp support 1 as well as from the rear heat-conducting component 4 to the barrel body 6.
- heat produced from working of the electric light-generating mechanism 2 can be efficiently dissipated so as not to cause damage or reduce the service life of the light source 22.
- the adjustment member 5 has two gaps 53 on a rear end thereof, which faces the rear heat-conducting component 4; thus, a suitable tool can be moved to turn the adjustment member 5 after having been engaged in the gaps 53.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008200516710U CN201273461Y (zh) | 2008-08-01 | 2008-08-01 | 手电筒 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2149739A1 true EP2149739A1 (fr) | 2010-02-03 |
EP2149739B1 EP2149739B1 (fr) | 2013-03-20 |
Family
ID=40883808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09006052A Not-in-force EP2149739B1 (fr) | 2008-08-01 | 2009-05-02 | Lampe torche |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2149739B1 (fr) |
CN (1) | CN201273461Y (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019127573A1 (de) * | 2019-10-14 | 2021-04-15 | Ledlenser GmbH & Co. KG | LED-Taschenlampe |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113007621B (zh) * | 2021-02-26 | 2023-01-20 | 深圳市海洋王照明工程有限公司 | 手电筒 |
CN113217833B (zh) * | 2021-05-24 | 2023-01-06 | 深圳晶石半导体科技有限公司 | 一种带有节能散热功能的led光源 |
CN113952032B (zh) * | 2021-12-20 | 2022-09-02 | 北京诺亦腾科技有限公司 | 一种用于骨科手术的空间追踪设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0311327A2 (fr) * | 1987-10-07 | 1989-04-12 | Mag Instrument Inc. | Lampe torche avec interrupteur et réglage du faisceau par le couvercle arrière |
WO2005109533A1 (fr) * | 2004-04-28 | 2005-11-17 | Galli Robert D | Dispositif d'eclairage a del presentant une gestion de chaleur amelioree |
US20070133197A1 (en) * | 2005-12-09 | 2007-06-14 | Wen-Chin Shiau | Flashlight |
US20070236920A1 (en) * | 2006-03-31 | 2007-10-11 | Snyder Mark W | Flashlight providing thermal protection for electronic elements thereof |
-
2008
- 2008-08-01 CN CNU2008200516710U patent/CN201273461Y/zh not_active Expired - Lifetime
-
2009
- 2009-05-02 EP EP09006052A patent/EP2149739B1/fr not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0311327A2 (fr) * | 1987-10-07 | 1989-04-12 | Mag Instrument Inc. | Lampe torche avec interrupteur et réglage du faisceau par le couvercle arrière |
WO2005109533A1 (fr) * | 2004-04-28 | 2005-11-17 | Galli Robert D | Dispositif d'eclairage a del presentant une gestion de chaleur amelioree |
US20070133197A1 (en) * | 2005-12-09 | 2007-06-14 | Wen-Chin Shiau | Flashlight |
US20070236920A1 (en) * | 2006-03-31 | 2007-10-11 | Snyder Mark W | Flashlight providing thermal protection for electronic elements thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019127573A1 (de) * | 2019-10-14 | 2021-04-15 | Ledlenser GmbH & Co. KG | LED-Taschenlampe |
DE102019127573B4 (de) | 2019-10-14 | 2022-11-10 | Ledlenser GmbH & Co. KG | LED-Taschenlampe |
Also Published As
Publication number | Publication date |
---|---|
CN201273461Y (zh) | 2009-07-15 |
EP2149739B1 (fr) | 2013-03-20 |
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