Abstract: An improved flashlight is disclosed which includes an a power supply a light source and a lens projection system, wherein the lens projection system including a collecting lens, a negative lens, and a collimating lens such that the illuminance of an area illuminated by a beam projected by the improved flash light is homogeneous throughout the whole of the illuminated area.

Abstract: An illuminative device, offers an optical device that is regulated by one hand and a LED circuit board that is sealed in waterproof and quick cooling structure. The illuminator, comprises a main body included a tube container for at least a battery and a narrow tube in the front end, a switch device set in rear end of the main body, which includes a battery cover, a screw thread portion for screwing to the main body, a switch board that sets a trigger on one end and a spring pole on the other end for a connection to the battery, and a elastic switch button that sets on the switch board, an emitting device included a LED circuit board and a tube base as a radiator, and a optical device included a sleeve with an inside circular stop flange at the rear end and an inside screw thread at the front end, a lens that holds at the front end of the sleeve, and a fastening ring with an outside screw thread for fixing the lens into the sleeve.

Abstract: A portable lighting device has at least one LED light source (2). Associated with this light source are a voltage supply (3) which can be switched on and off and a light distribution device (4) for varying a luminous intensity distribution of the light source (2). In order to improve the light distribution device in the case of such a portable lighting device in a simple way in design terms and without a considerable amount of space being required, it has a lens system (5) which can be varied in its distance in relation to the light source (2).

Abstract: The present invention is a spotlight with adjustable focus that has a focus fixing mechanism to prevent inadvertent changes to the focus of the light, while still allowing user-friendly intentional adjustment of the focus. The mounting neck of the reflector assembly rotates on threads on the lamp assembly so that the focus of the light may be adjusted. The focus is fixed in position by a plurality of ridges and valleys on the lamp assembly that mate with corresponding ridges and valleys in the neck of the reflector assembly. The neck of the reflector assembly is sufficiently flexible or expandable so that the focus of the lamp may be intentionally changed by applying sufficient rotational force, without requiring the user to physically interact with any sort of detent or locking mechanism. The neck is sufficiently rigid so that the reflector assembly will not rotate as a result of incidental vibrations or movement.

Abstract: A lighting device which is adapted to be converted between a flashlight mode and an area light mode includes a housing to receive a power supply, a light source associated with the housing and a tubular lens surrounding the light source, a reflector mounted to said device so as to slide relative to the tubular lens, the reflector including an aperture through which the light source can pass, the aperture having a shutter associated therewith whereby the shutter closes the aperture when the reflector is in a position which allows the device to be used in the area light mode.

Abstract: A portable lighting device, such as a flashlight, having a rotatable band disposed around the exterior of the flashlight is disclosed. Rotational movement of the band is converted to lateral movement of the light emitting element within the flashlight. The structural integrity of the flashlight is not compromised when the rotatable band is rotated around the flashlight to adjust the width of the projected pattern of light.

Abstract: A light-emitting diode (LED) lighting apparatus includes a main body, a light-emitting diode and a convex lens. The distance between the LED and the convex lens is less than two times of the focal length of the convex lens. When distance between the LED and the convex lens is changed, beam angle is fast changed so that the brightness for long distance is increased and illumination scope for short distance is increased without using a reflective cone.

Abstract: A light-emitting product (for example, a flashlight) includes a first housing includes a light source for emitting light and a lens system that is adjustable in position relative to the light source. The second housing can be attached to the first housing and includes a power source for the light source. When the first housing and the second housing are attached, the first housing and the second housing can be moved relative to each other to adjust the position of the lens system relative to the position of the light source to focus the light from the light source.

Abstract: A portable lighting device comprising a body with a battery storage, a lamp cap fixed on the body, a circuit board deposited inside the lamp cap, a first LED lamp and a relevant reflection base fixed on the circuit board, an optical diffuser rotatablely connected on the lamp cap as a dispersion lens of the first LED lamp, and a switch fixed on the body to control the on/off of the lighting device. The device has a simple structure and a small size so as to be portable and easily carried; the optical diffuser is rotatable, swiveling to the front of the first LED lamp for close quarters lighting and to the front of the second LED lamp for long-distance lighting. The device includes a clip on the body to attach the device on another object.

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: The present invention relates to a portable illumination device (100) for illuminating an object (200) through a medium having an absorption coefficient, the illumination device (100) comprising a lighting unit (101) including at least two differently colored light sources (Li-L3) for emitting light having a color distribution, and a control unit (105) for adjusting the color distribution. The control unit (105) is adapted to receive a distance estimate corresponding to the distance between the illumination device (100) and the object (200), and adjust the color distribution depending on the distance estimate, such that light reflected from the object is perceived to have substantially correct color reproduction. An advantage with the invention is that an object (200) illuminated through a medium will be perceived by a user using the portable illumination device (100) as having a substantially correct color reproduction.

Abstract: An adjustable lamp includes a lamp and a scattering shade which is slidable on the lamp. The scattering shade has a front end coupled with a reflective blade which is bent at a selected angle to reflect light. By sliding the scattering shade on a light penetrative shade, the position of the reflective blade can be changed to alter the reflective direction of the light.

Abstract: A versatile, low profile, lightweight, compact, body mounted lighting system includes a housing mountable to a person's body and a light module in the housing. The light module may include at least one LED producing a beam. There is a lens in front of the LED and a mechanism is configured to move the lens to adjust the distance between the lens and the LED to vary the size of the beam.

Abstract: The present invention is a spotlight with adjustable focus that has a focus fixing mechanism to prevent inadvertent changes to the focus of the light, while still allowing user-friendly intentional adjustment of the focus. The mounting neck of the reflector assembly rotates on threads on the lamp assembly so that the focus of the light may be adjusted. The focus is fixed in position by a plurality of ridges and valleys on the lamp assembly that mate with corresponding ridges and valleys in the neck of the reflector assembly. The neck of the reflector assembly is sufficiently flexible or expandable so that the focus of the lamp may be intentionally changed by applying sufficient rotational force, without requiring the user to physically interact with any sort of detent or locking mechanism. The neck is sufficiently rigid so that the reflector assembly will not rotate as a result of incidental vibrations or movement.

Abstract: A focus-adjustable LED flashlight includes: a tubular housing; an LED light-emitting unit coupled to the tubular housing; a sleeve unit coupled movably to the tubular housing; and a positive lens mounted in the sleeve unit and spaced apart from and aligned with the LED light-emitting unit along an axis of the tubular housing. The sleeve unit is movable relative to the tubular housing and the LED light-emitting unit along the axis of the tubular housing so as to adjust a distance between the positive lens and the LED light-emitting unit.

Abstract: A storage medium player includes a base, a printed circuit board mounted in the base, and an indicator device. The base includes an upper body and a lower body. One of the upper body and the lower body includes a first engaging portion and defines a hole. The indicator device includes an indicating lamp and a shield arranged between the indicating lamp and the hole. The indicating lamp is electrically connected with the printed circuit board so as to be supplied with an operating voltage by the printed circuit board. The shield is mounted in the base with one end thereof being engaged with the first engaging portion. The shield includes a main body and a protruding portion extending away from the main body. At least a part of the protruding portion is received in the hole.

Abstract: A snapped together portable lamp assembly may be formed with a deformable reflector. Cutouts in the reflector form a resiliently flexible web that enables axially flexing to initiate a spring operated electrical switch. A covering lens may transmit the initiating force to turn the lamp on or off. The structure is compact, easily operated with a single touch and inexpensive to make.

Abstract: A portable flashlight alarm clock apparatus includes a clock and flashlight assembly having an elongated housing with a body portion and a sleeve member. The housing includes a flashlight assembly and a clock assembly and the sleeve member is sized to receive the housing and is slidably associated therewith from a closed condition to an open condition in which a time display of the clock assembly is visible.

Abstract: A lighting device (10) which is adapted to be converted between a flashlight mode and an area light mode includes a housing (14) to receive a power supply (28), a light source (46) associated with the housing (14) and a tubular lens (34) surrounding the light source (46), a reflector (52) mounted to said device (10) so as to slide relative to the tubular lens (34), the reflector (52) including an aperture (68) through which the light source (46) can pass, the aperture (68) having a shutter (70) associated therewith whereby the shutter (70) closes the aperture (68) when the reflector (52) is in a position which allows the device to be used in the area light mode.

Abstract: A focus-adjustable LED flashlight includes: a tubular housing; an LED light-emitting unit coupled to the tubular housing; a sleeve unit coupled movably to the tubular housing; and a positive lens mounted in the sleeve unit and spaced apart from and aligned with the LED light-emitting unit along an axis of the tubular housing. The sleeve unit is movable relative to the tubular housing and the LED light-emitting unit along the axis of the tubular housing so as to adjust a distance between the positive lens and the LED light-emitting unit.

Abstract: A car flashlight structure, which can be plugged into a car charger, consisting of a cylindrical body, a cap disposed on a front end of the cylindrical body, a casing cover socket joined to the cap and an illumination assembly disposed within the cylindrical body. The illumination assembly is provided with at least one accumulator unit, at least one LED light, and configured with a contact switch. According to the aforementioned structure, the car flashlight can be plugged into a conventional car charger to replenish electric power, and is taken out directly from the charger to use, whereupon the cap is pushed forward to actuate the contact switch and provide an electric current to the LED light of the illumination assembly, thereby furnishing the user with auxiliary illumination.

Abstract: A night light appliance that when plugged into a standard wall electrical outlet provides a means to direct many beams of light to specific places in the room. Extending from the appliance body are bendable arms with bright light emitting diodes mounted at the end of each arm. The plastic body of each light emitting diode contains a lens that forms the light into a narrow beam. This night light is particularly suitable to a conventional bathroom where an electrical outlet is normally found high on the wall and near the sink. Unlike conventional night lights that illuminate the area near the outlet, these light beams can be directed to appropriate places like the doorway, sink, and toilet. It is also useful in a hallway by directing light beams down the length of the hall rather than lighting the area around the electrical plug.

Abstract: A portable lighting lamp 10 comprises an emitting module equipped with at least one light-emitting diode 11 for emitting a light beam, a fixing and connecting element 12 of said diode, and an optical focussing device 15 able to be moved in front of the diode 11 to make the visualization angle of the light beam vary. The optical focussing device 15 is advantageously constituted by one or more Fresnel lenses 16 mounted on a swivelling support 17 or a rotary knob designed to occupy either an inactive position situated outside the light emission field of the diode or an active position wherein said light beam passes through the lens so as to obtain either broad lighting with a short range or narrow lighting with a long range.

Abstract: An illumination apparatus is provided that has sufficiently high efficiency irrespective of a size of a light source. The illumination apparatus projecting light forward includes an LED chip, a small-diameter reflecting mirror positioned in front of the LED chip for receiving light from the LED chip to project the light forward, and a reflecting mirror enclosing the LED chip and the small-diameter reflecting mirror for directing and reflecting forward the light from the LED chip.

Abstract: A portable lighting lamp comprises an emitting module equipped with at least one light-emitting diode for emitting a light beam, a fixing and connecting element of said diode, and an optical focusing device able to be moved in front of the diode to make the visualization angle of the light beam vary. The optical focusing device is advantageously constituted by one or more Fresnel lenses mounted on a swiveling support or a rotary knob designed to occupy either an inactive position situated outside the light emission field of the diode or an active position wherein said light beam passes through the lens so as to obtain either broad lighting with a short range or narrow lighting with a long range.

Abstract: A portable, hand-held, electrically powered, high intensity directed light beam generating device for use as a replacement for a pyrotechnic flare for search and rescue, especially in a marine environment. The light intensity is generated by a xenon strobe flash tube in a covered, mirror reflective housing that allows for a directional beam of light of less than 6 steradians. The limited radiation light direction provides a safe optical solution for the user to prevent eye damage while increasing the beam intensity and range. The light and illumination section surrounding the strobe flash tube includes thermally conductive paths for the heat generated by the flash tube to be transmitted to the outside of the housing.

Abstract: A lighting device that enables use of one or more light-emitting diodes (LEDs) in combination with a reflector is described. The subject lighting device includes at least one LED on a supporting portion, such that the LED is located in front of and aimed toward a reflector. Light emitted from the LED is reflected by the reflector and travels past the LED to provide light. The light-emitting diode(s) may be substantially centrally located with respect to a central axis of a reflector. Focusability of the lighting device is achieved by adjusting the relative distance between the LED and reflector, or by other means.

Abstract: An efficient system and method for zooming the light from a flashlight is disclosed. Multiple refractive lenses are translated in unison to allow zooming of the light while reducing the size and weight of the required lenses. In another aspect, a meniscus lens is used to reduce the amount of light lost from a light-emitting diode (LED). One method includes providing a light source in a housing and translating a lens arrangement substantially along a light path of a light beam generated by the light source. The lens arrangement includes at least two refractive lenses separated by a gap, a size of the gap being maintained during translation of the lens arrangement.

Abstract: A flashlight has a lens moveable relative to an LED. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lens is supported on a front housing section and the LED is supported on a back housing section threaded onto the front housing section. Twisting the front housing section closes a switch providing power to the LED, to turn the flashlight on. Twisting the front housing section also adjusts the focus of the beam. A timer circuit within the flashlight turns the flashlight off after a selected time interval, to preserve battery life.

Abstract: The add-on illumination device provides a means of consistent, bright illumination to the viewing area of a collapsible (or folding) magnifier. This invention is easily inserted into the magnifier's lens storage compartment. Its lamps are situated under the edge of the magnifier's lens and are aimed at the magnifier's viewing area. The add-on illumination device dramatically improves the visibility of anything being viewed under the magnifier.

Abstract: A flashlight that utilizes an array of one or more light-emitting diodes (LEDs) as a light source, and a light pipe as a light homogenizer to generate a light beam capable of forming a uniformized light distribution at a given distance from the flashlight is disclosed. The LEDs may be all the same color, or some or all may be different colors. A switch, coupled to switching electronics coupled to the LED array, is used to change the state of the LED array to create a variety of different types of light beams, each of which provides relatively uniform and bright illumination at a given distance from the flashlight, wherein the given distance is selectable by adjusting an adjustable imaging lens.

Abstract: A flashlight that can be adjusted to provide different size light patterns at a predefined distance from the light is disclosed. The light patterns are always in-focus thereby providing well defined and uniformly illuminated areas of light. The focusing mechanism utilizes stationary lenses and a movable lens to adjust the diameter of the light pattern without allowing the pattern to become out of focus.

Abstract: A flashlight adapter is provided having a cap and a light diffusing lens. The cap is selectively attachable to and removable from a flashlight. The light diffusing lens is affixed to the cap and is located adjacent the flashlight's light source. The light from the light source is emitted through the light diffusing lens to clarify an illuminated object.

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: An apparatus for improving the performance of flashlights includes a substantially cylindrical housing (10) having a first end (12) and a second end (14). A battery cap (18) is operatively connected to the first end of the housing and functions to secure a series of batteries in place. A series (30) of light emitting diodes (LED) (32-48) are mounted within the flashlight housing at the end opposite the battery cap. The series of LEDs form an LED array which operates as the light source for the flashlight. A substantially cone-shaped optical assembly (50) extends outward from the second end of the housing and operates to focus and disperse the LED beam emitted by the LED array. The flashlight further includes an adjustable switch (56) disposed on the exterior of the housing. The switch is coupled to a variable resistor (58) which permits control over the light level and/or battery life.

Abstract: A compact work light that generates a light beam having high brightness and high illumination uniformity is disclosed. The work light includes a housing that houses a light source, a light homogenizer and an imaging lens in an operational relationship. The housing is attached to an adjustable mount, which can be attached to a fixed region such as wall, or to a movable support member such as a lamp base. The light source generates light that is uniformized by the light homogenizer. The homogenized light is then imaged by the imaging lens as a highly uniform, bright beam spot having a sharp boundary. The beam spot is formed at a selectable distance from the work light by varying the imaging lens and/or the adjustable mount. The work light is useful for a variety of industrial, professional and personal applications, including but not limited to a reading light, a dentist light, a head lamp, a head light and an optical projector.

Abstract: An adapter for providing a concentrated beam of light over an extended distance for a flashlight. The flashlight includes a penlight with an LED light source. The adapter includes a light collecting and magnifying barrel having a reflective inner surface and a magnifying lens and is secured with the end of the penlight encasing the LED. Light rays emitted from the LED are concentrated and reflected through the lens in the form of a condensed beam of light.

Abstract: A portable, battery-operated flashlight having improved pivoting, switching and focusing features is disclosed. In one aspect of the invention, the flashlight takes the form of an attachment to a head gear for hands free use. In another aspect of the invention, the flashlight takes the form of a head lamp held in place on an user's head by an elastic band. The pivot connection between the body and the base, as well as the serrations on an exterior surface of the body, allows a user to adjust any angular direction of the light as desired. In another aspect of the invention, the flashlight takes the form of a long-handled flashlight having improved switching and focusing capabilities, such that axial movement of the switching assembly turns the flashlight “on” or “off”, as well as causing a position of the lamp to vary in order to focus or defocus the light.

Abstract: An illumination device that is highly durable, wireless, programmable, inexpensive emits little to no heat, is shockproof, water-resistant, energy efficient, is multidirectional, responds to a multitude of stimulus and adapts for a multitude of purposes. The programmable device provides varying amounts of light in accordance with programmed instructions.

Abstract: A xenon arc searchlight or illumination system incorporates a quick change release and assembly so that the lamp, reflector and battery assemblies are easily field replaceable without tools. The lamp, ballast, battery and charger are provided in a single rugged package which can be sealed for field use. The searchlight is combined by an appropriate mounting adaptable with other optical detector devices such as cameras, binoculars and night vision telescopes. The beam output is similarly usable with a combination of filters to allow the most varied intensity and wavelengths for a particular application, such as smoke filled environments, surveillance employing near-infrared or infrared illumination, ultraviolet, underwater illumination or illumination with any color in the visible range.

Abstract: A variable beam flashlight has a housing with an exterior control knob that is movable by thumb. A light assembly in the housing includes a casing having a cylindrical guide housing within a bore, the inner surface defining the bore having a helical grove. Within the guide housing is cylindrical bulb extension member in which the bulb is fitted to one end. The bulb extension member has a groove member that extends through a slot in the guide housing and into the helical groove, such that when the control knob is rotated by the thumb, the guide housing is rotated. The rotating guide housing slot displaces the groove member causing the groove member to follow the helical groove. As it follows the groove the bulb extension member is moved longitudinally within the guide housing, causing the bulb to be positioned at variable distances from the front lens.

Abstract: A flashlight comprises a housing having, for example, a tapered portion and a hole at a forward end thereof with a flexible/bendable extension including a solid state light source extending through the hole at the forward end thereof. A switch, preferably in a tail cap, selectively connects the solid state light source and at least one battery in the housing in circuit for causing the solid state light source to produce light. The flexible extension preferably makes electrical contact with the housing and/or preferably includes an insulating cover having an end retained in the housing.

Abstract: A forensic light source uses a pair of filter wheels to achieve a combination of the characteristics of filters on different wheels and may include a housing which supports the light, filter wheels and other parts with shock absorbing members such as rubber washers or the like to achieve a shock resistant housing. A light source and a plurality of light filters are contained within the housing. The light source is powered by an external power supply, thus making the light source light weight.

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: A flashlight having multiple focuses includes a tubular body for receiving a power supply device therein and a cap is connected to the tubular body. A bulb and reflection disk assembly is independently received in the cap and includes a plurality of bulbs connected to a reflection disk. The bulb and reflection disk assembly is electrically connected to the power supply device and a lens assembly including a plurality of convex lenses is fixedly connected to the cap and located in front of the bulbs. The convex lenses are rotated relative to the bulbs by rotating the cap so as to have different illumination features with different focuses.

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 that generates a flashlight beam to illuminate an object at a selectable distance from the flashlight by imaging a uniformly bright pattern of light onto the object. A light modifying component can be used to manipulate the pattern of light into particular shapes and images. In one embodiment, light from a light source is coupled into a light pipe. The light is homogenized as it travels along the light pipe. The light exits the light pipe with a more uniform intensity than when it entered. The light exiting the light pipe is then reimaged by an imaging lens onto an object. Yet in other embodiments, one or more lens arrays having two or more lenlets are used to homogenize the light originating from the light source.

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: A combination for use in aligning a lamp bulb with the principle axis of a reflector is provided. The combination includes a lamp bulb and a lamp base. The lamp bulb has a pair of electrodes and a filament extending between the electrodes. The lamp base is adapted to receive the electrodes of the lamp bulb. The lamp bulb is secured to the base so that the electrodes extend through the base, the lamp bulb is disposed adjacent the base, and the filament of the lamp bulb is aligned with a predetermined axis extending through the base. The base is configured to be seated in a bore provided in a base receiver mounted adjacent the reflector so as to align the predetermined axis of the base with the principal axis of the reflector. Flashlights employing the combination are also provided.

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.