WO2001061238A1 - Torche electrique bidirectionnelle - Google Patents

Torche electrique bidirectionnelle Download PDF

Info

Publication number
WO2001061238A1
WO2001061238A1 PCT/KR2001/000211 KR0100211W WO0161238A1 WO 2001061238 A1 WO2001061238 A1 WO 2001061238A1 KR 0100211 W KR0100211 W KR 0100211W WO 0161238 A1 WO0161238 A1 WO 0161238A1
Authority
WO
WIPO (PCT)
Prior art keywords
flashlight
light
user
directional
reflectors
Prior art date
Application number
PCT/KR2001/000211
Other languages
English (en)
Inventor
Soo-Ho Kim
Original Assignee
Kim Soo Ho
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 Kim Soo Ho filed Critical Kim Soo Ho
Priority to AU36131/01A priority Critical patent/AU3613101A/en
Publication of WO2001061238A1 publication Critical patent/WO2001061238A1/fr

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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0075—Reflectors for light sources for portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00

Definitions

  • the present invention relates to a flashlight, and more particularly, to a bi-directional flashlight, which has means disposed on a front surface of the flashlight for showing remote objects and means disposed on a rear surface of the flashlight for lighting up a user's surroundings, i.e., surroundings of the flashlight.
  • a flashlight is used for discriminating things or for lighting up the way to make people's passing easy at night or in a dark place.
  • Conventional flashlights can light up only a front area of a user through a parabolic reflector.
  • these days there are frequent occasions when people pass a night in a mountain, a field, a riverside or others since mountain-climbing, fishing, camping and others have been widely popularized, and thus, it has been required to light up the user's surroundings, i.e., surroundings of the flashlight, rather than to light up only the front area.
  • the flashlight has means mounted at a front surface thereof for irradiating the user's front part by emitting light far and wide using a parabolic reflector 3, and means mounted at a rear surface thereof for lighting up the user's surroundings, the rear means having a miniature bulb, a reflector 10 and a cover 11a covering and protecting the miniature bulb and the reflector 10.
  • the cover 11a is made of transparent or semitransparent material.
  • FIG. 1A is a usage example of the flashlight used for discriminating remote objects or for passing the user's way
  • FIG. IB is a usage example of the flashlight used for lighting up the user's surroundings by standing vertically the flashlight on the ground to have the same effect as a lamp.
  • ⁇ is a range of the light irradiating the surroundings of the flashlight, that is, an effective range of the light that is actually required when the flashlight is used outdoors
  • ⁇ is a range of the light consumed by being dispersed in the air. In the latter case, there is little difference in an amount of the luminous intensity consumed in the interior of a room due to a reflection of a ceil of the room, but 50% or more of the amount of the light generated from the miniature bulb 9 is consumed outdoors.
  • the luminous intensity of ⁇ becomes weak by a loss of the light in the range of ⁇ , and the user feels ' fatigue in the eyes and cannot see exactly the surrounding objects due to a strong light of the bulb in the range of ⁇ . . . . .
  • FIGS. 2A to 2C of Korean Patent Publication No. 99-0038800 show a flashlight, which has a parabolic reflector 3 moving back and forth, a cylindrical cover lib made of transparent or semitransparent material, through which the light is passed, and a reflector 10, the cover lib and the reflector 10 being mounted at the rear part of the parabolic reflector 3.
  • FIG. 2A is a usage example of the flashlight in a state that the parabolic reflector is moved backward in such a manner that a miniature bulb is located in a front part of the parabolic reflector to discriminate remote objects or for passing the user's way.
  • FIG. 1 is a usage example of the flashlight in a state that the parabolic reflector is moved backward in such a manner that a miniature bulb is located in a front part of the parabolic reflector to discriminate remote objects or for passing the user's way.
  • 2B is a usage example of the flashlight in a state that the parabolic reflector is moved forward in such a manner that the miniature bulb is located in a rear part of the parabolic reflector to light up the user's surroundings by standing vertically the flashlight on the ground.
  • the advancing direction of the light generated from the bulb is divided into two parts, i.e., ⁇ and ⁇ .
  • ⁇ is a range of the light irradiating the surroundings of the flashlight, that is, an effective range of the light that is actually required when the flashlight is used outdoors
  • ⁇ is a range of the light emitted and consumed in the air through a hole, which is formed in the parabolic reflector to pass the miniature bulb, when the parabolic reflector is moved forward, i.e., the miniature bulb is located in the rear part of the parabolic reflector.
  • An amount of the consumed light of ⁇ varies according to a distance between the miniature bulb and the hole of the parabolic reflector, but the amount of the consumed light of ⁇ is about 20% ⁇ 40% of a total amount of the light.
  • the present invention provides a flashlight, which allows a user to discriminate objects in the front of the user and to pass the user's way in safety.
  • the present invention provides a flashlight including a parabolic reflector disposed on a front part thereof to reflect light and irradiate ahead of the user, first and second reflectors 10 and 12, a cover 11 made of transparent or semitransparent material for fixing the first and second reflectors 10 and 12, a miniature bulb 9 located between the reflectors and the cover, and a switch 8a for lighting the miniature bulb 9.
  • the first and second reflectors 10 and 12, the cover 11 and the miniature bulb 9 are located in a rear part of the flashlight.
  • FIG. 5B when a switch 8b is turned on after the flashlight is stood on the ground vertically, the light of the miniature bulb is reflected by two reflectors 10 and 11 as shown in FIG. 5C and advances only to the range ⁇ . At this time, the range of ⁇ of the light consumed in the air shown in FIGS.
  • the luminous intensity of ⁇ of the surroundings of the flashlight is increased to 40% ⁇ 50%) of the first conventional flash light (see FIG. 1) and improved to 20% ⁇ 40%> of the second conventional flashlight (see FIG. 2), and the area of shadow of the flashlight is considerably narrowed.
  • the flashlight may be used for emergency by way of provision for a breakdown of electric current.
  • a change of direction i.e., from a side irradiation to a front irradiation or from the front irradiation to the side irradiation, is needed during using the flashlight, in the conventional flashlight of FIG. 2, the user must use both hands, but in the present invention, the user can rapidly and exactly change the direction of the light by a simple manipulation of the switch with only one hand.
  • the flashlight can be used effectively in mountain climbing, fishing or others, and can be easily stood on the level ground or the inclined ground because of the wide area of the flashlight, which is in contact with the ground.
  • FIG. 1 is a view of an operational example of a conventional bi-directional flashlight
  • FIG. 1 A is a view of an advancing direction of light used for discriminating objects in front of the conventional bi-directional flashlight or for passing a user's way;
  • FIG. IB is a view of the advancing direction of the light used for lighting up the user's surroundings by standing vertically the conventional bi-directional flashlight on the • ground;
  • FIG. 1C is a view of an amount of the light passed according to directions in the conventional bi-directional flashlight
  • FIG. 2 is a view of another conventional bi-directional flashlight
  • FIG. 2 A is a view of an advancing direction of light used for discriminating objects in front of the conventional bi-directional flashlight or for passing a user's way;
  • FIG. 2B is a view of the advancing direction of the light used for lighting up the user's surroundings by standing vertically the conventional bi-directional flashlight of FIG. 2A on the ground;
  • FIG. 2C is a view of an amount of the light passed according to directions in the conventional bi-directional flashlight of FIG. 2 A;
  • FIG. 3 is an exploded perspective view of the present invention
  • FIG. 4 is a sectional view of the present invention.
  • FIG. 5 is a view of an operational, example of a bi-directional flashlight according to the present invention.
  • FIG. 5A is a view of an advancing direction of light used for discriminating objects in front of the bi-directional flashlight of the present invention or for passing a user's way;
  • FIG. 5B is a view of the advancing direction of the light used for lighting up the user's surroundings by standing vertically the bi-directional flashlight of FIG. 5A on the ground;
  • FIG. 5C is a view of an amount of the light passed according to directions in the bidirectional flashlight of FIG. 5 A.
  • FIGS. 3 and 4 are -views of a bi-directional flashlight according to the present invention.
  • a protective glass 2 and a parabolic reflector 3 are fixed on a front surface of a body 7 by screwing using a cover 1.
  • a first miniature bulb 4 is fixed between the parabolic reflector 3 and a cell or a storage cell 14 disposed in the center of the body 7 with a first socket 5.
  • a second miniature bulb 9 is fixed on a rear surface of the body 7 with a second socket 6, and first and second reflectors 10 and 12 are screwed and fixed to the body 7 by a transparent or semitransparent cover 11.
  • a reflector protecting cap 13 is fixed to an end of the transparent or semitransparent cover 11 to protect the second reflector 12. At this time, on the rear surface of the flashlight, the miniature bulb 9 must be located and fixed between the first reflector 10 and the second reflector 12. The first and second reflectors 10 and 12 serve to reflect the light generated from the miniature bulb 9 to the surroundings of the flashlight as shown in FIG. 5B.
  • the first reflector 10, preferably, is in the form of a conic funnel, but may be in one of various shapes, such as a semicircle, a plane or others
  • the second reflector 12 preferably, is in the form of a cone, of which a central angle is large, but may be in one of various shapes, such as a semicircle, a plane, a concave mirror or others.
  • switches 8a and 8b are mounted in proper positions.
  • the switch 8a When the switch 8a is turned on, the first miniature bulb 4 disposed on a front surface of the flashlight is lighted and the light from the first miniature bulb 4 is reflected to the parabolic reflector 3 and emitted as shown in FIG. 5 A, so that a user can discriminate objects in front of the user.
  • the switch 8b When the switch 8b is turned on, the second miniature bulb 9 disposed on the rear surface is lighted and the light from the second miniature bulb 9 is reflected to the reflectors 10 and 12.
  • the light from the reflectors 10 and 12 is emitted as shown in FIG. 5B and lights up the surroundings and the surrounding ground of the flashlight when the flashlight is stood and used on the ground.
  • FIG. 5B The light from the reflectors 10 and 12 is emitted as shown in FIG. 5B and lights up the surroundings and the surrounding ground of the flashlight when the flashlight is stood and used on the ground.
  • the luminous intensity of ⁇ in a part where 100% of the light generated from, the miniature bulb lights up the surroundings and the surrounding ground of the flashlight is increased.
  • the switches 8 a and 8b may be bi-directional change switches or independent switches, and the description of an electric circuit will be omitted since it is a common technique.
  • the bi-directional flashlight according to the present invention is improved in practical use and effective because rapidly and exactly reflecting the light in front and rear directions according to the user's intention. Furthermore, the bi-directional flashlight according to the present invention is economical as being used for multi-purpose and can secure a wide field of vision as having a stronger luminous intensity of the surroundings of the flashlight.
  • the flashlight of a lantern type is described as a preferred embodiment, but it will be appreciated that the present invention is not to be restricted by the specific embodiment and may be changed in various forms and is iiTespective of the size and form. It is to be appreciated that, if the changed form is caused by a selective coupling of the first and second reflectors 10 and 12, it will belong to the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

La présente invention concerne une torche électrique bidirectionnelle, qui émet la lumière vers l'avant et vers l'arrière, de sorte que l'utilisateur puisse sélectivement et facilement l'utiliser selon son intention. Par conséquent, lorsque l'utilisateur marche ou regarde des objets éloignés, un dispositif monté sur la surface avant de la torche électrique, dont la lumière est réfléchie via un réflecteur parabolique, est utilisé pour éclairer devant l'utilisateur et pour éclairer son environnement immédiat; un dispositif monté sur la surface arrière de la torche électrique, qui comporte deux réflecteurs destinés à réfléchir la lumière sur les parties latérales de la torche électrique et le sol environnant étant également utilisé. La torche électrique bidirectionnelle comprend un corps, une cellule ou une cellule de stockage montée à l'intérieur du corps, une première ampoule et un réflecteur parabolique montés sur la partie avant du corps, une cellule ou une cellule de stockage introduite dans la partie centrale, un couvercle transparent ou semi-transparent monté sur la surface arrière du corps, des premier et second réflecteurs disposés à l'intérieur du couvercle pour réfléchir la lumière de l'ampoule, une seconde ampoule montée entre les premier et le second réflecteurs, et des boutons pour utiliser sélectivement les ampoules.
PCT/KR2001/000211 2000-02-18 2001-02-14 Torche electrique bidirectionnelle WO2001061238A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36131/01A AU3613101A (en) 2000-02-18 2001-02-14 Bi-directional flashlight

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2000/4515U 2000-02-18
KR2020000004515U KR200190900Y1 (ko) 2000-02-18 2000-02-18 양방향 손전등

Publications (1)

Publication Number Publication Date
WO2001061238A1 true WO2001061238A1 (fr) 2001-08-23

Family

ID=19642844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/000211 WO2001061238A1 (fr) 2000-02-18 2001-02-14 Torche electrique bidirectionnelle

Country Status (2)

Country Link
KR (1) KR200190900Y1 (fr)
WO (1) WO2001061238A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113682B2 (en) 2008-10-02 2012-02-14 Life+Gear, Inc. Multipurpose waterproof lighting device with electronic glow stick
US8186846B2 (en) 2008-10-02 2012-05-29 Life+Gear, Inc. Multipurpose lighting device with electronic glow stick
JP2012512500A (ja) * 2008-10-02 2012-05-31 ライフ プラス ギア， インコーポレイテッド 両側照明モジュールを有するフラッシュライトと照明後部

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101548950B1 (ko) * 2014-01-16 2015-09-02 조각희 이중반사경을 갖는 조명기구
KR20190081807A (ko) 2017-12-29 2019-07-09 윤주원 다양한 각도 조절이 가능한 양방향 손전등

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0636101U (ja) * 1992-10-09 1994-05-13 賢 太田 懐中電灯
KR19990001664U (ko) * 1997-06-20 1999-01-15 이종희 양방향점등 손전등

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0636101U (ja) * 1992-10-09 1994-05-13 賢 太田 懐中電灯
KR19990001664U (ko) * 1997-06-20 1999-01-15 이종희 양방향점등 손전등

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113682B2 (en) 2008-10-02 2012-02-14 Life+Gear, Inc. Multipurpose waterproof lighting device with electronic glow stick
US8186846B2 (en) 2008-10-02 2012-05-29 Life+Gear, Inc. Multipurpose lighting device with electronic glow stick
JP2012512500A (ja) * 2008-10-02 2012-05-31 ライフ プラス ギア， インコーポレイテッド 両側照明モジュールを有するフラッシュライトと照明後部
US8360596B2 (en) 2008-10-02 2013-01-29 Life+Gear, Inc. Flashlight and illuminated rear section with two-sided lighting module
US8529087B2 (en) 2008-10-02 2013-09-10 Square 1 Bank Multipurpose lighting device with electronic glow stick
US8545040B2 (en) 2008-10-02 2013-10-01 Life+Gear, Inc. Flashlight and illuminated rear section with two-sided lighting module

Also Published As

Publication number Publication date
KR200190900Y1 (ko) 2000-08-01

Similar Documents

Publication Publication Date Title
US6623140B2 (en) Illumination device having multiple light sources
US10794549B2 (en) Multi-directional light assembly
US5530633A (en) Combination electric torch
US7163313B2 (en) Illumination device
US6158874A (en) Multiple beam flashlight
US6004003A (en) Portable lighting device
WO2001077575A1 (fr) Dispositif d'eclairage portable
US2972739A (en) Portable safety light
US5957566A (en) Flashlight
WO2000045086A1 (fr) Torche electrique combinee a eclairage dirige ou diffus
US20240142081A1 (en) Illumination devices
WO2001061238A1 (fr) Torche electrique bidirectionnelle
ES2362257T3 (es) Medio de iluminación.
EP1196718B1 (fr) Structure pour lanterne
US20020041139A1 (en) Portable Lamp With Adjustment Device To Obtain Different Emitted Light Cones
US3226538A (en) Illuminating means
KR20060041977A (ko) 측방 및 후방 조명기능을 갖는 휴대용 전등
US20060044802A1 (en) Aimable vehicle lamp assembly
KR101097491B1 (ko) 휴대용 조명등
CA2350787A1 (fr) Dispositif d'eclairage portable
US10228110B1 (en) Handheld illunating device with orb-shaped lens for enhancing forward and lateral visibility
GB2118290A (en) Electric torch
KR200200191Y1 (ko) 스탠딩부재가 수납되는 다용도 손전등
JP3124830U (ja) 非常灯
JP2007136148A (ja) 杖

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BG BR CA CN CU HU ID IL IN JP KP LK MN MX NO NZ PL RO SG TR UA US VN YU ZA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP