Abstract: Separate leads and a common lead are provided on the upper and lower surfaces of a substrate. A plurality of LED elements are disposed in an array on the common lead on the upper surface of the substrate. The common lead provided on the upper surface of the substrate is connected to the common lead provided on the lower surface of the substrate through through-hole plating. Heat generated from the plurality of LED elements is transferred through the common lead provided on the upper surface of the substrate and the through-hole plating to the common lead provided on the lower surface of the substrate and is release therefrom into the air. By virtue of this construction, an light emitting device can be realized in which heat radiating properties are homogenized, heat radiation efficiency is improved, and a compact structure is obtained and, thus, the color balance is improved and unfavorable phenomena such as lowering in the output of light emitting elements and shortening of the service life are avoided.

Abstract: An LED flashlight assembly includes a body, a battery seat mounted in the body and provided with a plurality of LEDs, and a lamp seat mounted on the body and formed with a plurality of through holes for passage of the LEDs of the battery seat. The lamp seat is formed with an arcuate catch edge encompassing the periphery of the through holes. Thus, the arcuate catch edge encompasses the periphery of the through holes, so as to refract the beams of refracted and dispersed light emitted from the LEDs, so that the beams of refracted and dispersed light emitted from the LEDs are concentrated, collected and integrated into the beams of flat and smooth light, thereby enhancing the brightness of the LED flashlight assembly.

Abstract: The present invention provides a novel waterproof head assembly specifically designed for LED sources. The rounded end surfaces of the LED are exposed to the outside environment through apertures formed in a solid end wall of the head assembly. To prevent water from entering into the interior of the flashlight through the apertures, the present invention discloses filling the interior cavity of the head with a sealant which substantially entirely fills all of the gaps between the outside surfaces of the LED's, the inside surfaces of the apertures, and the inside surfaces of the open end of the head assembly.

Abstract: A light device having a battery and lamp housing and a hinged top door. Batteries and a lamp holder are located within the housing and are accessible by opening the hinged top door. As the hinged top door is opened, a cam surface that holds the batteries in tight contact with the lamp holder moves away from the batteries, thereby releasing the tension holding the batteries in place within the housing. The batteries can therefore be easily loaded and unloaded. Likewise, as the hinged top door is closed, the tension holding the batteries in place is reapplied to the batteries to create a circuit for powering a lamp engaged with the lamp holder. Furthermore, the lamp engaged with the lamp holder is also accessed through the hinged top door.

Abstract: Flashlights having selectively controllable brightness levels, preferred embodiments of which comprise in combination: a battery; a switch having an OFF position not connected to the battery, a first ON position connected to the battery, and a second ON position connected to the battery; an electrical component (such as a resistor or an inductor) in circuit with the battery when the switch is in its first ON position and not in circuit with the battery when the switch is in its second ON position; a light emitter assembly; and a controller in circuit with the battery, the switch and the light emitter assembly, for detecting whether or not the electrical component is in circuit with the battery when the switch is in either one of its first ON position and its second ON position, and for controlling electrical power to the light emitter assembly for producing a first light output when the electrical component is detected and for producing a second light output when the electrical component is not detected.

Abstract: A novel lighting assembly that incorporates a high brightness light emitting diode (LED) in a compact assembly for further integration into a lighting device is provided. The lighting head assembly of the present invention provides several novel aspects that are all closely integrated to provide a unique assembly for incorporating a high brightness LED into a lighting device. In particular, the head assembly utilizes a receiver sleeve that includes a tail portion which surrounds the output end of the LED thereby isolating the LED and capturing both the conductive and radiant waste heat emitted by the LED to further dissipate the captured heat out of the assembly.

Abstract: A flashlight as disclosed to comprise a barrel, a tail cap, a head assembly, and a miniature lamp bulb holder and for providing interruptible electrical coupling to dry cell batteries retained within the barrel. One-way valves may be positioned at seal locations in association with passageways to allow venting of overpressure within the interior volume of the flashlight.

Abstract: A light device a base received in a housing and having a conductor disposed on the upper portion and having a seat supported above the base with one or more spring blades and movable downwardly beyond the conductor. A casing includes a circuit board, a light member attached to the circuit board, a panel, and one or more batteries coupled to the circuit board for energizing the light member. The panel includes two conductors coupled to the circuit board and forceable to engage with the conductor of the base when the casing is forced or depressed toward the base.

Abstract: A flashlight comprises a barrel, a lamp shield assembly, and a lamp seat assembly. The lamp seat assembly includes a lamp seat, a movable seat, and a lamp mounted on the movable seat. The position of the movable seat in the lamp seat can be adjusted to locate the filament of the lamp in the focus of the reflective member of the lamp shield assembly so that the light beams emitted from the lamp can travel a long distance.

Abstract: Flashlight activated by external pressure on one end of its casing to energize the lamp. The flashlight includes a casing for holding a battery and the contact portion a lamp, a front cap positioned on the front of the casing to secure the lamp protruding through an aperture, and a rear cap made of resilient material. A resilient spacer is positioned within the casing, intermediate the lamp and the battery to retain these two components out of contact in the nonilluminated state. External depression of the resilient rear cap urges the battery forward and the resilient spacer compressed to allow contact between the battery and base of the lamp. Contact wire electrically connects the lamp and battery to complete a circuit. Release of the rear cap allows the resilient spacer to expand, breaking contact between the battery and lamp, to turn off the flashlight.

Abstract: A light device a base received in a housing and having a conductor disposed on the upper portion and having a seat supported above the base with one or more spring blades and movable downwardly beyond the conductor. A casing includes a circuit board, a light member attached to the circuit board, a panel, and one or more batteries coupled to the circuit board for energizing the light member. The panel includes two conductors coupled to the circuit board and forceable to engage with the conductor of the base when the casing is forced or depressed toward the base.

Abstract: A light device includes a light member coupled to a circuit board, a stationary conductor engaged in a bucket and coupled to the circuit board, a movable conductor disposed close to the bucket and received in a follower which is coupled to the circuit board and which may rotate the movable conductor to contact with the stationary conductor or to be supported on the peripheral wall of the bucket and to be disengaged from the stationary conductor. The conductors may each include two ends heads for engaging with each other or for separating the conductors from each other.

Abstract: A nail-driving tool includes a body and an illumination device detachably mounted to the body. The body includes a plurality of engaging members formed thereon, and the illumination device includes a casing having an engaging groove for releasably engaging with one of the engaging members of the body.

Abstract: The present invention discloses an inline switch mechanism that operates in a reverse direction, making electrical contact as the flashlight head is unscrewed. The switch has an outer housing, an inner contact tube, a plunger, a contact spring, an insulator disk and a secondary spring. All of the components are electrically conductive with the exception of the insulator disk and outer housing. In the off position, the plunger floats, centered in the contact tube, with a contact end in electrical communication with the battery. A contact spring is disposed around and in electrical communication with the plunger. The insulator disk is on the back of the plunger supporting it and isolating it from the contact tube and is disposed between the plunger and the secondary spring.

Abstract: A portable illumination device for illuminating a target zone includes an outer frame having illumination means disposed at least partially therein, and attachment means for removably attaching the illumination device through desired objects, with the attachment means being formed integral with the outer frame. In a particular embodiment, the portable illumination device includes multiple light emitting diodes which are specifically positioned and directed to illuminate distinct target zones. The portable illumination device may be removably attached to a variety of regularly and irregularly shaped objects.

Abstract: A flashlight has a pair of light emitting elements mounted on a pivotable switch actuator to place the light emitting elements in any one of an OFF position, a spot illumination position, and a flood illumination position.

Abstract: A nail-driving tool comprises a body and an illumination device detachably mounted to the body. The body comprises a plurality of engaging members formed thereon, and the illumination device comprises a casing having an engaging groove for releasably engaging with one of the engaging members of the body.

Abstract: A ratchet wrench and lighting circuit arrangement is constructed to include a ratchet member and a connector mounted in one end of a wrench body for grasping and turning nuts and bolts, a battery holder threaded onto the ratchet member to hold a battery set, and a lamp holder assembly installed in the connector and moved with the connector in the ratchet member between a first position where the circuit of the battery set and the lamp holder assembly is closed, causing the lamp bulb of the lamp holder assembly to emit light, and a second position where the circuit of the battery set and the lamp holder assembly is opened to turn off the lamp bulb of the lamp holder assembly.

Abstract: The portable lighting device of the present invention includes a casing defining a battery compartment. The battery compartment may be lined with a shock absorbing material and may be configured to receive a plurality of batteries arranged in at least two rows that are offset with respect to one another. The casing may define two support surfaces with one inclined with respect to the other. A battery cartridge may be used in the lighting device that has a pivoting handle to aid in removal of the cartridge from the battery compartment. A reflector isolator may also be employed to reduce mechanical shock transferred to the lamp. A lantern so constructed can withstand drops of up to 15 feet or more.

Abstract: A flashlight having a mechanism for preventing electrical contact members thereof from rusting comprises a battery frame including a plurality of slanted flexible bifurcation members for receiving one or more batteries, each bifurcation member having a recess proximate the electrode. In an unused position, batteries are disengaged from each other and from a bulb and a conductor coupled to bulb. While in use, by pushing a switch to hold bifurcation members upright in a secured position so.that batteries, bulb, and conductor are electrically coupled together with electrodes and a protuberance of conductor inserted through recesses, thereby forming a circuit from bulb to conductor via batteries.

Abstract: A flashlight has a housing having a battery containing portion with a closed back end and an open front end, and a light source containing portion integral with and extending from the front open end of the battery containing portion. The battery containing portion is substantially triangular in transverse cross-section with rounded corners which form three battery containing chambers within the battery containing portion. Three spiral springs are in the battery containing portion and are seated on the closed end of the battery containing portion with each spring being in alignment with a battery chamber. Two of the springs are electrically connected together the third spring has an electrode wire extending along one side of the battery containing portion to the light source containing portion. The light source containing portion is cylindrical and has its longitudinal axis in alignment with one of the battery chambers in the battery containing portion.

Abstract: A method and an apparatus for a self-contained illumination device that couples to a toy are given. The self-contained illumination device comprises a first housing containing a battery, a middle housing coupled to a light emitting body, and a second housing having an aperture. The second housing is detachably attached to the middle housing such that the light emitting body fits through the aperture on the second housing. The second housing moves from a non-illuminating position to an illuminating position such that the light emitting body contacts the battery when the second housing is in the illuminating position. A connection device attached to the first housing detachably couples to a toy.

Abstract: An illuminable accessory item having an illuminating unit included within the structure of the accessory item so that the illuminating unit is illuminated upon exertion of pressure on a specific trigger point on the accessory item. A pressure-activated actuator that controls the illumination of the illuminating unit is activated when pressure is applied to the trigger point. The actuator comprises a circuit board that, in combination with the illuminating unit, a trigger and one or more power sources, forms a closed circuit that delivers electrical current to the illuminating unit. One or more embodiments of the invention further include an ornamental fixture that is preferably transparent or translucent and can be used as a cover for the illuminating unit. When the illuminating unit is lit, its illumination is visible through the transparent or translucent portions of the ornamental fixture.

Abstract: A flashlight has a housing having a battery containing portion with a closed back end and an open front end, and a light source containing portion integral with and extending from the front open end of the battery containing portion. The battery containing portion is substantially triangular in transverse cross-section with rounded corners which form three battery containing chambers within the battery containing portion. Three spiral springs are in the battery containing portion and are seated on the closed end of the battery containing portion with each spring being in alignment with a battery chamber. Two of the springs are electrically connected together the third spring has an electrode wire extending along one side of the battery containing portion to the light source containing portion. The light source containing portion is cylindrical and has its longitudinal axis in alignment with one of the battery chambers in the battery containing portion.

Abstract: A latching power switch for a light emitting diode (“LED”) flashlight is disclosed which includes a vessel comprising upper and lower components for receiving and containing a lithium cell battery, a means of using the anodic and cathodic leads from the LED, an aperture provided through the said vessel, and a switching mechanism comprising a rotating cam movable through the vessel aperture. The switching device comprises an on-off switch. The switch operates by rotating a biwire LED in which its leads are formed to surround a lithium coin cell power source. The LED wire leads pass through holes in an electrically nonconductive cam which has both a protuberance for operating the cam and a lobe for latching against a surface of the aperture through which it passes. The cam latches the wire leads against their proper corresponding coin cell surfaces thus activating the circuit and causing the illumination of the LED.

Abstract: An illuminated archery arrow that includes conventional components such as a tubular shaft, a pointed head attached to the forward end of the shaft, fletchings on the rearward portion of the shaft and a nock at the rear end of the shaft. The arrow structure also includes a novel and improved tail lighting assembly carried interiorly of the rearward portion of the arrow shaft. The lighting assembly comprises a light source disposed in proximity to a light transmitting nock, a battery for powering the light source, a normally open switch responsive to a magnetic field for closing the switch contacts, and other circuit elements that interconnect the battery and the light source. Depending upon the circuit configuration, the battery voltage may be applied intermittently to the light source and then turned off or applied constantly for a specified time and then turned off.

Abstract: A flashlight includes a lamp base module disposed in a conductive barrel for seating a lamp thereon. The lamp base module includes a first insulator base member having first and second terminal receiving holes. First and second conductors are mounted in the terminal receiving holes, respectively. A hollow conductive seat is disposed above the first insulator base member, and has an upright wall portion establishing electrical contact with the barrel, and a flange portion that extends radially and inwardly from a bottom end of the upright wall portion and that contact electrically the first conductor. A second insulator base member has two coupling arms extending into two base coupling holes in the first insulator base member for coupling together the first and second insulator base members. The second insulator base member has two terminal extension holes to permit extension of two lamp terminals of a lamp for enabling electrical connection between the lamp terminals and the first and second conductors.

Abstract: A light device having a battery and lamp housing and a hinged top door. Batteries and a lamp holder are located within the housing and are accessible by opening the hinged top door. As the hinged top door is opened, a cam surface that holds the batteries in tight contact with the lamp holder moves away from the batteries, thereby releasing the tension holding the batteries in place within the housing. The batteries can therefore be easily loaded and unloaded. Likewise, as the hinged top door is closed, the tension holding the batteries in place is reapplied to the batteries to create a circuit for powering a lamp engaged with the lamp holder. Furthermore, the lamp engaged with the lamp holder is also accessed through the hinged top door.

Abstract: An inertially responsive switch for use in footwear for electrically connecting a battery with a light includes an electrically conductive ball mounted in a housing for rolling movement about an upright axis along which a pair of electrical terminals are spaced apart. When the ball contacts the terminals, an electrical current from the battery passes along the terminals and the ball in order to illuminate the light.

Abstract: A flashlight includes a conductive barrel body having annular front and rear end portions spaced apart from each other in an axial direction, and a battery accommodating space extending in the axial direction between the front and rear end portions to accommodate a battery unit therein. A sleeve member is mounted co-axially on the front end portion of the barrel body. A lamp unit is disposed in the sleeve member, and includes a lamp seat and a light bulb mounted removably on the lamp seat. An electrical conductor unit is disposed in the sleeve member between the front end portion of the barrel body and the lamp unit. The conductor unit includes a conductive core member having a first end in electrical contact with the light bulb, and a second end to contact electrically a first electrode of the battery unit inside the battery accommodating space. A dielectric core holding block is formed with an axial core mounting hole, within which the core member is mounted.

Abstract: A decorative member includes a housing having a chamber for receiving a frame of a light device. A sleeve is secured on one end of the frame. A spring is secured in the sleeve, a light member is electrically coupled between the spring and the frame. A lid is secured on the sleeve and spaced from the spring for electrically contacting with the spring when the spring is vibrated, and for generating a twinkling light when the spring is intermittently contacted with the lid. The housing may be attached to various kinds of objects for generating twinkling lights for the objects.

Abstract: A hand held device providing effective illumination of a site being worked on has a metal tube serving as a handle, at one end of which a switch is threaded therein, and at the other end of which a window is secured. Located within the handle are a battery, which communicates with the switch by means of a spring, and a light bulb, which faces the window. Interchangeable implements, including tools and instruments, are individually releasably secured within an orifice in the window. The switch operates simply, facilely, and positively, with no parts which will wear out.

Abstract: The torch comprises a support device shaped as a swivelling flap made of insulating material, pivotally mounted on a spindle between an inactive position allowing access to the batteries via the orifice after the reflector sub-assembly has been removed, and an active position in which the terminals are in contact with the poles of the batteries, said spindle extending orthogonally with respect to the longitudinal axis of the end-piece.

Abstract: A cartridge assembly for a laryngoscope includes a housing which supports an axially movable miniature lamp assembly in the instrument handle and includes at least one sealing member which provides a fluid tight seal for the electrical contacts of the lamp assembly and the power supply of the laryngoscope regardless of the axial position of the lamp assembly.

Abstract: A flashlight holder assembly for releasably receiving a flashlight of the type having head rotatable with respect to a barrel for operation thereof. The barrel of the flashlight defines a faceted exterior surface. The holder defines a barrel support and a base. The barrel support defines a faceted internal surface and a slot which cooperate to closely receive the barrel such that the barrel is retained in the barrel support in a non-rotatable manner. The base defines a base plate to which the barrel support is secured. In one embodiment, the holder includes a clip which extends from the base plate and is positioned below the base plate and cooperates with the base plate to receive and retain the periphery of an article therein.

Abstract: A flashlight in accordance with the present invention includes a chamber, end cap, head assembly and lamp holder assembly. The end cap includes a bowed tripod portion to facilitate standing the flashlight on a flat surface. The head assembly includes a reflector and a lens. In one embodiment of the invention, the head assembly includes an elliptical reflector. In accordance with another embodiment of the present invention, the flashlight having a elliptical reflector is matched with a negative or planar lens. In accordance with another embodiment of the present invention, the head assembly includes an hyperbolic reflector. In accordance with another embodiment of the present invention, the flashlight having a hyperbolic reflector is matched with a positive or planar lens. In accordance with another aspect of the present invention, the flashlight includes electrode connections which prevent the conduction of electrical energy from batteries which are improperly aligned within the flashlight.

Abstract: A flashlight includes a rechargeable battery and is loaded from the front. The contacts are on an intermediate portion between the barrel extended and made with contacts of a recharging device. There is a helical spring member between the switching device above the barrel and the top of the battery and a helical spring member on the base of the barrel at the bottom of the battery. An enlarged head is located above the barrel and there is the intermediate portion between the head and the barrel. The intermediate portion receives the switching device.

Abstract: A flashlight bulb is mounted to a cylindrical bulb chassis such that the base of the light bulb is spaced apart from the top surface of the bulb chassis. A layer of resilient silicone material is positioned in the clearance space between the space-dapart base of the light bulb and the front surface of the bulb chassis to provide cushioning for axial and radial movement of the light bulb. A heat resistant resilient O-ring is inserted in an enlarged rear portion of the central bore of a reflector housing such that the internal surface of the O-ring slip fits around the cylindrical body of the light bulb to cushion the light bulb for radial movements of the light bulb and so that the light bulb remains mechanically and optically aligned with the central axis. For good cushioning the durometer of the O-ring is between 60-70 and the durometer of the silicone layer is between 50-60.

Abstract: A flashlight particularly useful by safety personnel such as a firefighter and capable of operation with rechargeable battery means or non-rechargeable battery means. The flashlight includes a one-piece plastic casing having a tubular body portion defining a battery compartment and a right angled head portion in which a light bulb is mounted. The battery compartment is closed by an end cap on which electrical conductive means is mounted to form a part of the battery circuit when non-rechargeable batteries are placed in the compartment. A plurality of charging contacts are mounted on the rear wall of the body portion of the flashlight for enabling rechargeable batteries to be recharged while in the compartment. The charging contacts are recessed within the rear wall of the battery compartment so that they can not be engaged by non-rechargeable batteries within the compartment.

Abstract: An underwater light has a head assembly including a reflector, a light source located in the head assembly and movable relative to the reflector, a housing that moves relative to a slide that engages the switch such that it is twist activated. Continued twisting adjusts the position of the light source to adjust beam spread. Bearings are included in the head assembly to allow the twisting action to be effected under high pressure, while o-ring seals prevent leakage.

Abstract: A lamp assembly for a flashlight including an assembly member, a base carrying a bulb, a board containment member for containing the base within the assembly member, and a fastener for retaining the board containment member against the base. The fastener has external threading which mates with internal threading provided in the through bore of the assembly member.

Abstract: A torch light having a case containing batteries and an assembly formed by a bulb and connecting circuit arranged on a cylinder mounted with limited rotation in a circular housing of the case between a first rest position allowing access to the first compartment for fitting or removal of the batteries and a second work position commanding lighting of the torch. The cylinder has a ramp cooperating with the batteries when switching from the first rest position to the second work position takes place to allow the first contact and the second contact to come into engagement with the respective terminals of opposite polarities of said batteries. A pushbutton operating the switch is able to be in an inactive position corresponding to the closed state of the switch when the second contact is bearing against one of the terminals, and an active position urging the switch to the open state following separation of the terminal with the second contact.

Abstract: The present invention provides a collapsible lantern including a base adapted to house a power source, and a telescoping portion movable, relative to the base, between an extended position and a collapsed position. The telescoping portion includes a light source electrically connected to the power source. A switch electrically connected between the power source and the light source interrupts the electrical connection between the power source and the light source when the telescoping portion is in the collapsed position.

Abstract: A laser pointer includes a first metal barrel having a first end closed with a metal screw cap, and a second end, which is opened, the first metal barrel holding a battery set, a control circuit board, an axially extended spring member and a laser diode supported on the axially extended spring member and extended out of the second end of the first metal barrel; a second metal barrel having a first end opened and coupled to the second end of the first metal barrel by a screw joint, and a second end opened, the second metal barrel being moved axially relative to the first metal barrel upon a rotary motion; and a socket mounted in the first end of the second metal barrel and moved with the second metal barrel axially between a first position where the socket is coupled to the laser diode to compress the axially extended spring member and hold the laser diode in position, and a second position where the socket is released from the laser diode, enabling the laser diode to be oscillated with the axially extended sp

Abstract: A flashlight that includes a substantially watertight battery housing, a bulb mounted in a socket assembly, a reflector, and a lens covering a forward end of the reflector. A plurality of batteries are supported in the housing so that only if the batteries are correctly polarized will a circuit be completed to allow current from the batteries to energize the bulb. This reduces the emission of flammable gas or corrosive liquid from the batteries. A membrane seals a vent port in the battery housing and is made of a material that permits a flammable gas generated by the batteries within the housing to continuously escape from the housing through the membrane without permitting water to enter the housing through the membrane. Pellets are mounted inside the battery housing for neutralizing the effects of any flammable gas emitted within the battery housing that may have nevertheless been produced and not adequately vented.

Abstract: A method and apparatus for selectively focusing a flashlight are provided. The apparatus includes a flashlight (10) having a flashlight body (12) with a cavity (32) therein and further having an actuator-receiving opening (204) through a portion of the flashlight body. A reflector (90) for reflecting light and a lamp (24) for producing light are disposed within the cavity (32). A housing assembly (302) is disposed within the cavity and moveable therein. The housing assembly includes a housing (34). An actuator (30) extends into the actuator-receiving opening and couples to the housing. The lamp and reflector are associated with the housing assembly whereby movement of the housing assembly allows relative movement of the lamp and the reflector to allow focusing of light from the lamp when an operator causes the actuator to move.

Abstract: A miniature flashlight comprising a barrel, tailcap, head, bulb holder, bulb and an electrical circuit. The bulb holder is positioned at one end of the barrel such that the bulb extends into the head. The head includes a parabolic reflector surrounding the bulb such that the rotation of the head relative to the barrel changes the focus of the flashlight beam. A rotary switch associates the bulb holder with the barrel to control opening and closing of the electrical circuit. Rotation of the head away from the barrel closes the electrical circuit. The head is not a part of the electrical circuit and its removal exposes the bulb for substantially spherical illumination. The head assembly is removable from the barrel for use as a base into which the tailcap and barrel is inserted to stand the miniature flashlight in its "on" condition, as a lamp.

Abstract: A turn-on-and-off device for a flashlight includes an actuating disc located in front of a casing. The actuating disc has a center hole for a lamp to pass through and three posts extending laterally rearward to pass through three position holes in a front end wall of the casing. The actuating disc can be moved by a lamp housing being screwed to move forward and rearward. When the actuating disc is in a forward position, the three posts permit the foremost battery to contact with the lamp bottom to let the lamp lit up. When the actuating disc is in a rearward position, the three posts push rearward the foremost battery, which is then separated from the lamp, which is then turned off.

Abstract: A golf swing training device configured to be removably attached to the handle of a standard golf club. The training device includes a light source that generates a parallel light beam, such as a laser beam, which enables a golfer using this device to visually monitor the position of the club with accuracy throughout the golf swing. The light source is enclosed within a pair of housings that are threadably coupled, such that the light source is activated by rotating one of the housings relative to the other. The training devices is secured to the golf club handle solely with a threaded member that is screwed into an opening in the end of the handle and draws the base of the device against the end of the handle.

Abstract: An improved focusing flashlight is provided which includes a metallic cylinder having a collar at the front and adapted to receive a conducting cartridge and a seat insulator therein. The conducting cartridge has an internal thread formed in a centrally disposed hole and a flange extending around the perimeter of the hole, adapted to be received within a corresponding sleeve barrel extending from the seat insulator, around the perimeter of a centrally disposed hole. The internal threads of the conducting cartridge are adapted to threadedly engage a bulb.