Abstract: An eyestrain reducing device is disclosed. An illustrative embodiment of the eyestrain reducing device includes a lighting unit having a lighting unit housing; a plurality of light openings provided in the lighting unit housing; and a plurality of lights provided in the lighting unit housing adjacent to the plurality of light openings, respectively. At least one of the plurality of lights is an infrared light. A power source is connected to the plurality of lights. A switch is provided on the light unit housing and electrically connected between the power source and the plurality of lights.

Abstract: Oil-type cigarette lighters are converted to small flashlights by utilizing the lighter insert sub-assembly to house a LED module and a battery module. These modules are connected together by an insulated wire passing through the wick hole of the insert sub-assembly and a switch that contacts the hinge side of the lighter outer case lid.

Abstract: A portable lamp comprises a LED-based lighting module, a rotary selector switch for selecting the operating mode, and a power supply battery, the whole assembly being housed in a compact case which is coupled to a fixing plate with multidirectional orientation. The lighting module and the selector switch are arranged side by side on the front face, the fixing plate being joined to the case by a ball and socket joint arranged in a housing provided at the base of the case between the selector switch and the lighting module.

Abstract: A laser indicator is secured on a rotating shaft of a sawing machine, on which rotating shaft a saw is fitted; the laser indicator consists of a base, an upper cover, a laser module, and a threaded adjusting element passed through a screw hole of the upper cover; the laser module is pivoted to the base, and subjected to elastic force of an elastic member; the adjusting element is pressed against the laser module such that orientation of the laser module can be adjusted by means of turning the adjusting element; therefore, if the laser beam emitted from the laser module fails to head towards exactly the same direction as the blade of the saw, the user is allowed to turn the adjusting element to adjust the laser module to a correct position.

Abstract: A portable light (10) has a rigid base (12), a power supply (14) having first and second poles (16, 18) within the base and a light source (20) positioned in the base (12). The light source (20) has first and second lead-ins (22, 24). The first lead-in (22) is in contact with the first pole (16) of the power supply (14). Electrical isolation means (26) isolates the second lead-in (24) from the second pole (18) of the power supply (14); and a flexible cover (28) is fitted to the base (12). The cover (28) includes at least one portion (30) that is contactable with the second lead-in (24) whereby pressure on the at least one portion (30) defeats the electrical isolation means (26) and causes a connection between the second lead-in (24) and the second pole (18) of the power supply (14) to actuate the light source (20) while the pressure is being applied.

Abstract: A portable light is disclosed comprising at least one light emitting diode, a power source, a switch operable for closing an electronic circuit between the power source and the light emitting diode, wherein when the electronic circuit is closed the at least one diode emits light generally about a first axis, and a body adapted to receive the light emitting diode, the battery and the switch, the body comprising a loop portion towards one end thereof defining a loop aperture having an axis which is substantially parallel to the first axis.

Abstract: The LED cap light has a housing with an arcuate top surface. LED's on the housing front surface are disposed at intervals along a laterally extending arc. A power switch is on the housing bottom. A battery is inside the housing. Electronic circuitry in the housing is responsive to the power switch to select at least one central LED for illumination while the remaining LEDs are powered off, and to select the remaining LEDs for illumination while the at least one central LED is powered off, and to power off all LEDS. The at least one central LED is designed to emit a substantially monochromatic primary color. Two steel spring clips are attached to the housing and extend above the top surface of the housing. Spring clip surfaces contact the housing top surface to provide a resilient frictional force for attachment to a hat visor.

Abstract: A foldable, rechargeable light emitting diode (LED) pocket light is disclosed. The light includes a first compartment, a second compartment and a hinge element. The first compartment has a housing, a plurality of LED lights, a rotatable hinge, and a hook for hanging the light. The second compartment includes a housing, a member for receiving the rotatable hinge and a power source. The light also includes an activating member and circuitry for activating the LED lights.

Abstract: The present invention relates to materials comprising hydrophilic polymers and immobilized proteorhodopsin and the use of such materials as an optical information carrier. The material comprises one or more hydrophilic polymers that are capable to form a homogeneous phase with proteorhodopsin prior to solidification to a solid form. The hydrophilic polymer, for example, is silica sol-gel, gelatin, polyvinylalcohol, agarose, agar, methyl cellulose, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, or a mixture thereof. The solid material having immobilized proteorhodopsin is deposited on a substrate selected from the group consisting of glass, paper, metal, fabric material, plastic material, and used as an optical data storage material or a fraud-proof carrier. The present invention further provides a security ink comprising proteorhodopsin and one or more hydrophilic polymers.

Abstract: A laser indicator is secured on a rotating shaft of a sawing machine, on which rotating shaft a saw is fitted; the laser indicator consists of a base, an upper cover, a laser module, and a threaded adjusting element passed through a screw hole of the upper cover; the laser module is pivoted to the base, and subjected to elastic force of an elastic member; the adjusting element is pressed against the laser module such that orientation of the laser module can be adjusted by means of turning the adjusting element; therefore, if the laser beam emitted from the laser module fails to head towards exactly the same direction as the blade of the saw, the user is allowed to turn the adjusting element to adjust the laser module to a correct position.

Abstract: An interchangeable flashlight-cargo lamp system includes a docking station that is suitable for mounting either a cargo lamp or a rechargeable flashlight. The flashlight doubles as a cargo lamp when mounted within the docking station. Both the cargo lamp and the flashlight have common mounting elements that mate with corresponding mounting features of the docking station to permit either device to be inserted into and removed from the docking station. The interchangeable devices also include electrical contacts that mate with corresponding electrical contacts in the docking station. The flashlight further includes a battery that is recharged when the flashlight is mounted in the docking station.

Abstract: A lighting assembly that incorporates a high brightness LED in a compact assembly that is sealed and sufficiently durable for a continuous operational range of between 350 feet below sea level and 35,000 feet above sea level. Further, the flashlight of the present invention includes a novel modular interface arrangement that allows the flashlight to be interfaced with a variety of different equipment or reconfigured in order to facilitate use for different functionality such as a marker light, a runway indicator light or a weapon mounted light.

Abstract: A flashlight includes one or more light devices for being energized to generate light, one or more chargeable batteries are received in the housing and coupled to the light device for energizing the light device, an electric generating device is received in the housing, and rotatable or drivable by an actuating device. A directing device is coupled between the electric generating device and the chargeable battery for preventing an anti-phase electric current from flowing toward the chargeable battery and for preventing the chargeable battery from being damaged by the anti-phase electric current. A coupler may be coupled to the electric generating device for coupling to various electric facilities.

Abstract: A hand toll equipped with an illuminator has a conductive assembly settled within the handle to provide power to a lamp assembly which can lighten the operating end of the hand tool. A user can push a switch back and forth to operate the conductive assembly and in turn switch on/off the illuminator.

Abstract: A light card is provided having a switch bar that avoids the need to bend an LED lead for turning the LED light on. The light card can be implemented in a credit or debit card size, with a viewing lens, or used as a key ring holder.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A flashlight having a non-conductive housing, an electric power source, a light source, and two nodes disposed on external surfaces of the non-conductive housing, wherein the flashlight is adapted to allow electric current to flow from the power source through the light source when both of the two nodes are abutted by a user's hand, activating the flashlight without further manipulation required by the user. Inadvertent activation of the flashlight is minimized by including a protruding rib between the nodes or by disposing the nodes on different sides of the flashlight.

Abstract: A flashlight configured to durably provide an effective beam of light for extended periods of time. The flashlight features a high-power, directed LED configured to produce a divergent beam of light that is characterized by an optical directivity angle extending from a vertex point. The flashlight includes a lens having a first portion forming a convergent lens, where the LED is located such that its vertex point coincides with the lens' focal point. The convergent lens is sized and positioned such that substantially all of the directed light from the LED passes through the convergent lens portion to emerge in a first beam of parallel light. The LED emits additional light through a tip. A parabolic reflector has the tip at its focal point to reflects the additional light into a second beam of parallel light that is parallel to and surrounding the first beam, thus forming a single and more efficient useful beam.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: In auxiliary headlamp, for attachment to the headstrap of a personal headlamp, a lamp body is removably attachable to a strap bracket having a strap-receiving slot through which a headstrap can extend. When the lamp body is attached to the strap bracket, the lamp body is rotatable about an axis of rotation which extends in perpendicular relationship to the portion of the headstrap held in the slot, and the lamp is arranged to project a beam of light in substantially perpendicular relationship to the axis of rotation of about which the lamp body is rotatable.

Abstract: Lighted reading glasses are provided to enable clear reading of normal sized text to occur when the reading material is held at usual distances from the reader in dimly lit or dark locations. The lighted glasses have high intensity lights, such as in the form of LEDs that generate narrow light beam cones and which are oriented via light mounts as by inward canting of the light beam cones to meet and overlap so high brightness light is generated in a conical overlap area of light which is maximized in size in the range of normal reading distances. The light mounts include housings that are very compactly sized via the use of small coin cell batteries for powering the LEDs they hold. The housings are tapered from their maximum width sized to be slightly larger than the diameter of the disc-shaped cell batteries to either end thereof along their length, and have a depth sized to accommodate two of the stacked very thin, e.g., one-eighth of an inch each, coin cell batteries.

Abstract: A miniature LED flashlight is composed of a flashlight assembly and an attachment loop. The attachment loop is configured to require a two-step manipulation for attachment or detachment from a key ring. The flashlight assembly and attachment loop are attached by a snap fit relationship between a projection on one and a recess on the other, and can be readily disconnected by application of a bending force.

Abstract: A portable light intended for mounting on a garment as support includes two LED light sources spaced apart towards the rear of the portable light. A clipped base below on anchor facilitates locating a garment between the anchor and the base, and a spring action urges the base toward the anchor. A hingedly movable head for the LEDs is mounted on the housing to move to and form the housing. An opening of the housing causes a switch in the housing to move between an opened and closed position such that a circuit actives or de activates the LED lights when the head opens or closes relative to the housing.

Abstract: Integrated illumination systems employing illumination devices formed onto substrates are described. According to one embodiment, the display system combines an electroluminescent lamp, a photocell, a power supply receiving energy from the photocell and discharging electrical energy to the EL lamp, and, optionally, a control switch to manage the intervals of electrical energy discharge to the EL lamp for illumination; the components of the d lay system combining to provide illumination for an object, such as a sign. According to another embodiment, a photocell, power supply and light emitting device are each formed onto a single substrate to form a totally self-contained, self-powered illuminating device. According to another embodiment, an electroluminescent lamp is provided to form an illuminated decal. The EL lamp may be configured to have a front illumination surface and a back mounting surface, with a decal backing attached to the back mounting surface.

Abstract: A light transmitting device for attachment to a stethoscope headpiece which provides for reversible engagement of the device to the headpiece so that the same can be removed such as for repairs or replacement of batteries. The transmitting device provides a source of light without interfering with the operation of the stethoscope and can be provided without retooling the stethoscope to accommodate a source of light.

Abstract: A light card is provided having a switch bar that avoids the need to bend an LED lead for turning the LED light on. The light card can be implemented in a credit or debit card size, with a viewing lens, or used as a key ring holder.

Abstract: A flashlight includes a light emitting diode, power source, momentary contact switch for activating the flashlight, and a split-ring clip for attachment to key-rings, baggage, and various articles of clothing. The momentary contact switch may be activated manually or when the flashlight is selectively inserted into a carrier that releasably retains the flashlight on an article of clothing or other support.

Abstract: A miniature flashlight consists of a housing, a light emitting diode (LED), a pair of batteries, and a flexible cover and a contact clip that acts as a switch. The LED has a head portion and two contact arms. One of the contact arms is shorter than the other and is displaced at a slight angle relative to the longer contact arm. The LED is received in a seat formed in the housing with the head portion of the diode received in an aperture in the side wall of the housing. The longer contact arm is captured in a channel formed in the bottom wall. The shorter contact arm rests on a shoulder that forms part of the LED seat. A pair of coin cell batteries are received within another seat formed in housing. The lower battery sits on top of the longer contact arm captured in the channel of the bottom wall. A resilient plastic cover is assembled with the housing to maintain the diode and the batteries within the housing.

Abstract: A small portable flashlight holds laminated platy batteries (11) on a circuit substrate (10) having a switching circuit on one surface thereof and one battery contact point (19) on the other surface thereof. Another battery contact point (22b) is provided on a contact arm (21) extending from the substrate so as to hold the batteries. The batteries, the circuit substrate and contact arm are held in lamination in a flat main body case part (9). A light emitting body (12) having a light emitting part exposed to the outside of the main body case is held on the side part of a laminated body. An operating part (13) moved to come into contact with or separate from the contact point of the switching circuit so as to perform the flashing operation of the light emitting body is provided on the upper or side part of the main body case. The portable flashlight can be reduced in size and, therefore, can be carried as if the flashlight is a key holder.

Abstract: A compact signal light is provided with LEDs arrayed across its front face, and a magnet and/or suction cup on its rear face so that a user may readily mount it on a refrigerator door or the like. The front face of the signal light may bear the name and telephone number of a delivery or emergency service so that a user may resort to the signal light when making an emergency or delivery call. The user may then turn on the signal light so that its LEDs are illuminated (with one or more of the LEDs preferably flashing), and place the signal light on a door or window where the delivery or emergency service is to be rendered, so that the location is more easily found by the delivery or emergency personnel without “hunting.” The signal light provides a particularly valuable tool for pizza delivery companies and the like because it serves as an advertising tool reminding the consumer of the company, as well as providing the company with a way to more quickly and efficiently render its delivery services.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A magnifying apparatus includes a seat, an intermediate member, a first spring-loaded hinge connecting one end of the intermediate member to the seat, a cover, a second spring-loaded hinge connecting an opposite end of the intermediate member to the seat, a catch provided at the seat for grasping the cover at a closed configuration of the apparatus and releasing the cover and the intermediate member from the closed configuration of the apparatus for movement to an open configuration by the action of the spring-loaded hinges. There is a movable light emitter at the seat having a first configuration for illuminating an object in a space defined by the seat, intermediate member and cover at the open configuration, and a second configuration for illuminating a remote object.

Abstract: The invention relates to an adjustable flashlight case for supporting a rectangular shaped flashlight and includes an open front flashlight holder for releasably receiving the flashlight and a U-shaped clip enabling attachment of the case to a support or to the user's person, such as by attachment to an article of clothing or the like. The clip is pivotally connected to the back side of the flashlight holder and has an integral flexible tongue on which is formed a plurality of detent protrusions or nubs for mutual cooperation with a plurality of recesses formed on the holder circumferentially about and concentric to the pivot axis so as to enable pivotal adjustment of the holder relative to the clip, thereby facilitating selective angular orientation of the flashlight beam when supported by the case.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A light transmitting device for attachment to a stethoscope headpiece which provides for reversible engagement of the device to the headpiece so that the same can be removed such as for repairs or replacement of batteries. The transmitting device provides a source of light without interfering with the operation of the stethoscope and can be provided without retooling the stethoscope to accommodate a source of light.

Abstract: A flashlight configured to durably provide an effective beam of light for extended periods of time. The flashlight features a high-power, directed LED configured to produce a divergent beam of light that is characterized by an optical directivity angle extending from a vertex point. The flashlight includes a lens having a first portion forming a convergent lens, where the LED is located such that its vertex point coincides with the lens' focal point. The convergent lens is sized and positioned such that substantially all of the directed light from the LED passes through the convergent lens portion to emerge in a first beam of parallel light. The LED emits additional light through a tip. A parabolic reflector has the tip at its focal point to reflects the additional light into a second beam of parallel light that is parallel to and surrounding the first beam, thus forming a single and more efficient useful beam.

Abstract: A lantern is provided that comprises a case having a plurality of walls defining a case interior. The plurality of walls includes opposing front and rear walls. A lighting port is formed through the front wall and a faceplate assembly is disposed in the case interior in substantial registration with the lighting port. The faceplate assembly is disposed so that it engages a portion of the front wall surrounding the lighting port to seal the lighting port. A solid-state illuminator assembly is disposed in the case interior in substantial registration with the faceplate assembly and in contact with the faceplate assembly. A bracing arrangement is disposed intermediate the solid-state illuminator assembly and the rear wall. The bracing arrangement is in contact with the solid-state illuminator assembly and is configured to restrict rearward movement of the solid-state illuminator assembly and the faceplate assembly.

Abstract: A flashlight includes a body with first and second opposed ends, an enclosure for at least one battery which is defined between the first and second ends, and a non-circular mouth at the first end, a head which is engageable with the mouth, and at least one clip which is engageable with the head and the body thereby to secure the head to the body. The body may include at least a first fixing formation and the head may include at least a second fixing formation, and the clip may have formations which are complementary to, and which are engageable with, the first and second fixing formations. The clip may be movable between a first position at which the clip engages fully with the fixing formation or formations on the body or head, and a second position at which the clip is fully disengaged from the fixing formation or formations.

Abstract: A compact signal light is provided with LEDs arrayed across its front face, and a magnet and/or suction cup on its rear face so that a user may readily mount it on a refrigerator door or the like. The front face of the signal light may bear the name and telephone number of a delivery or emergency service so that a user may resort to the signal light when making an emergency or delivery call. The user may then turn on the signal light so that its LEDs are illuminated (with one or more of the LEDs preferably flashing), and place the signal light on a door or window where the delivery or emergency service is to be rendered, so that the location is more easily found by the delivery or emergency personnel without “hunting.” The signal light provides a particularly valuable tool for pizza delivery companies and the like because it serves as an advertising tool reminding the consumer of the company, as well as providing the company with a way to more quickly and efficiently render its delivery services.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: A lantern is provided that comprises a case having a plurality of walls defining a case interior. The plurality of walls includes opposing front and rear walls. A lighting port is formed through the front wall and a faceplate assembly is disposed in the case interior in substantial registration with the lighting port. The faceplate assembly is disposed so that it engages a portion of the front wall surrounding the lighting port to seal the lighting port. A solid-state illuminator assembly is disposed in the case interior in substantial registration with the faceplate assembly and in contact with the faceplate assembly. A bracing arrangement is disposed intermediate the solid-state illuminator assembly and the rear wall. The bracing arrangement is in contact with the solid-state illuminator assembly and is configured to restrict rearward movement of the solid-state illuminator assembly and the faceplate assembly.

Abstract: The present invention provides a collapsed flashlight preform having a generally planar foldable portion to form a flashlight body, said foldable portion having a main portion to form the sides of a flashlight body and two end portions adapted to serve as end pieces of a flashlight when assembled; a lamp means attached to one of said two end portions; at least one battery secured to said preform by a holder; said holder having external formations thereon to support said main portion between said end pieces when said flashlight is assembled.

Abstract: This invention is related to a emergency flashlight comprises a flashlight body 110, and a holder 120 supporting the body 110: in which the body 120 includes a receiving section 111 storing small batteries 9 therein, a electric lighting section 112 equipped at upper side of the receiving section 111 and a lower covering section 113 equipped at lower side of the receiving section 111; the holder 120 includes a holder body section 121 fixed to a structure such as a wall, etc.

Abstract: A flashlight having a light-emitting diode light source with first and second leads extending therefrom, a power source, a power source frame enclosing at least a portion of the power source; a housing containing the light source and power source, a switch located adjacent the power source and operable to close a circuit including the light source and the power source, and wherein one or all of the following may be included 1) a keyring extension extending from a power source frame or the housing with the keyring extension having an opening whereby an article can be attached to the keyring extension and includes a keyring lock wherein upon exerting a force against the keyring lock, the keyring lock is opened to permit the article to be attached to the keyring extension; 2) the housing is comprised of translucent material; and 3) the housing includes at least one side cover which is not integral with the housing and the at least one side cover being selected from anodized aluminum, anodized metal, anodized met

Abstract: The present invention relates to materials comprising hydrophilic polymers and immobilized proteorhodopsin and the use of such materials as an optical information carrier. The material comprises one or more hydrophilic polymers that are capable to form a homogeneous phase with proteorhodopsin prior to solidification to a solid form. The hydrophilic polymer, for example, is silica sol-gel, gelatin, polyvinylalcohol, agarose, agar, methyl cellulose, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene glycol, or a mixture thereof. The solid material having immobilized proteorhodopsin is deposited on a substrate selected from the group consisting of glass, paper, metal, fabric material, plastic material, and used as an optical data storage material or a fraud-proof carrier. The present invention further provides a security ink comprising proteorhodopsin and one or more hydrophilic polymers.

Abstract: A novel construction and method for manufacturing a flashlight housing is provided. The housing includes two interior compartments wherein a lighting assembly is installed into a first compartment and a power supply is installed into a second compartment. The lighting assembly includes two contacts that extend from the first compartment into the second compartment and are in electrical communication with the power source thereby providing power for the lighting assembly. The housing is configured to include a faceplate that is permanently sealed to the housing to create a positively sealed assembly that prevents infiltration of water or other contaminants into the housing.

Abstract: This invention is about an illuminable electronic ice cube. It comprises outer casing, inner unit, LED, circuit board, battery, bottom lid, and battery cover lid. The outer casing is made into a natural ice cube shape with ripple-shaped sides. The inner unit is fitted in the outer casing, It comprises a base, a raised support, an illuminable light cylinder. The light cylinder is fixed on the raised support. There is a chamber in the inner unit. It runs through the base the raised support and the light cylinder. The LED is fitted in the light cylinder. The circuit board is under the LED inside the light chamber, the battery is under the circuit board inside the light chamber; The bottom lid is at the bottom of the outer casing, it has a push-button switch and a hole matching the battery cover lid. When the battery runs out, turn the battery cover lid to separate it from the bottom lid, and a new battery can be installed.

Abstract: The present invention includes an illumination assembly consisting of a light source such as a light emitting diode (LED) that produces a near field image and a means of imaging and focusing the near field image. The means for imaging and focusing the near field image is a convex optical lens having a radius of curvature equal to twice the overall thickness of the lens. The optical lens is installed in fixed spaced relation to the LED such that the lens is imaging the reflector cup of the LED rather than the light on the surface clear LED housing. The lighting assembly is enclosed in a flashlight housing having a means for operating the lighting circuit, a means for retaining a power source and a key ring extension with a slidable latching mechanism.