Abstract: An optical diffuser for a light may comprise an optical body having a substantially flat base at one end thereof and a complex lens structure at the opposing end thereof. The complex lens may have a plurality of curved optical surfaces and may produce a beam of light having a non-uniform light intensity. The optical diffuser may be attached to a light by a holder, and the holder may be movable on the light to place the optical diffuser in front of alight source.

Abstract: A connector comprises: an elongated connector body defining a longitudinal direction with an electrical connector frame at one end thereof; the elongated connector body having a longitudinal alignment feature on the elongated connector body configured for aligning the elongated connector body, a guide feature defining a unique orientation thereof, and a retaining feature configured for retaining the elongated connector body in a connector guide.

Abstract: A battery charger comprises: a housing having at least one cradle; a connector port for receiving at different times electrical plug connectors having different contact configurations; electrical receptacles in the connector port for receiving at different times electrical plug connectors associated with different electrical power supplies, plural electrical receptacles having different contact configurations; the plural electrical receptacles being closely adjacent such that an electrical connector inserted into one electrical receptacle physically prevents an electrical connector from being inserted into the other electrical receptacle; and an electrical circuit coupling electrical power received at the electrical receptacles to the at least one cradle.

Abstract: A light for mounting on an implement is provided. In particular, a light configured to be releasably attached to a firearm is provided. The light includes first and second light elements. A selector switch is operable to select which of the two light elements is energized when a primary switch is actuated.

Abstract: A portable light may comprise: a light body having an illumination, e.g., white, light source and a laser light source supported thereby, each source being selectively energizable for producing light; and a switch for selectively energizing the illumination light source and/or laser light source. The laser light source is configured to provide a plane of laser light, so as to create a line of laser light on objects illuminated by the plane of laser light. The laser light source may include a cylindrical lens to create the plane of laser light. The plane of laser light may be rotatable relative to the light body. A TIR optical element may also be disposed in front of the illumination light source for receiving the light produced thereby.

Abstract: A portable light or device may comprise: a housing for receiving a battery; a light source or other operating element in the housing; an electrical switch actuatable from outside the housing; a control circuit in the housing connecting the operating element in circuit with a battery for selectively energizing the operating element responsive to the electrical switch; a first electrical charging port on the housing coupled to the battery by the control circuit for charging the battery; and a second electrical charging port on the housing coupled to the battery by the control circuit for charging the battery. The second electrical charging port may include a USB connection for receiving battery charging current.

Abstract: A connector may comprise: an elongated connector body defining a longitudinal direction with an electrical connector frame at one end thereof; the connector body having a longitudinal alignment feature on the connector body configured for aligning the connector body, a guide feature defining a unique orientation thereof, and a retaining feature configured for retaining the connector body in the connector guide.

Abstract: A battery charger may comprise: a housing having at least one cradle; a connector port for receiving at different times electrical plug connectors having different contact configurations; electrical receptacles in the connector port for receiving at different times electrical plug connectors associated with different electrical power supplies; a first electrical receptacle having a different contact configuration than a second electrical receptacle; the electrical receptacles being closely adjacent such that an electrical connector inserted into one electrical receptacle physically prevents an electrical connector from being inserted into the other electrical receptacle; and an electrical circuit coupling electrical power received at the electrical receptacles to the at least one cradle.

Abstract: A portable light comprises: a light body extending from a light head, one or more light sources supported by the light head and energizable to produce light, and one or more switches for selectively energizing the light sources. In one embodiment, the one or more switches are at substantially diametrically opposite locations on the light body, and plural light emitting sources and/or a light emitting source and a laser light source may be provided. In another embodiment, the light body defines an envelope line extending along a side thereof and has a recess inward of the envelope line. A clip may be configured to be disposed substantially in the recess of the light body and within the envelope line of the light body.

Abstract: A light for mounting on an implement is provided. In particular, a light configured to be releasably attached to a firearm is provided. The light includes first and second light elements. A selector switch is operable to select which of the two light elements is energized when a primary switch is actuated.

Abstract: An optical diffuser for a light may comprise an optical body having a substantially flat base at one end thereof and a complex lens structure at the opposing end thereof. The complex lens may have a plurality of curved optical surfaces and may produce a beam of light having a non-uniform light intensity. The optical diffuser may be attached to a light by a holder, and the holder may be movable on the light to place the optical diffuser in front of alight source.

Abstract: An electronic adapter circuit for charging and/or recharging a battery of a first battery type utilizing a charging device for a battery of a second different battery type, may comprise: an electronic circuit for controlling the charging of the battery of the first battery type when the battery of the first type is charged by the battery charging device, wherein the electronic circuit has high conductivity when the battery of the first type provides electrical power to a load, and has a reduced conductivity for limiting charging of the battery of the first type when it is charged by the battery charging device. The electronic circuit may include a controllable conductivity device having high conductivity when the battery of the first type provides power to a load, and a battery charging control circuit for reducing the conductivity of the controllable conductivity device for limiting the charging of the battery.

Abstract: A portable light or device may comprise: a housing for receiving a battery; a light source or other operating element in the housing; an electrical switch actuatable from outside the housing; a control circuit in the housing connecting the operating element in circuit with a battery for selectively energizing the operating element responsive to the electrical switch; a first electrical charging port on the housing coupled to the battery by the control circuit for charging the battery; and a second electrical charging port on the housing coupled to the battery by the control circuit for charging the battery. The second electrical charging port may include a USB connection for receiving battery charging current.

Abstract: An electronic circuit and/or method that determines a type and/or size of a battery in a light and controls operation of a light source may comprise: a circuit measuring the voltage of the battery; and a processor for determining the measured battery voltage. The processor may compare the measured battery voltage and a predetermined voltage and set an operating condition of the light source based upon the difference between the measured battery voltage and the predetermined voltage. The processor may apply a predetermined load to the battery for a predetermined time and measure battery voltage during the predetermined time; and determine the difference between the measured voltage of the battery and the measured battery voltage during the predetermined time.

Abstract: A portable light or device may comprise: a light source or operative element; a switch for controlling energization of the light source or operative element; and a housing supporting the light or operative element and the switch. The housing has a compartment having a relatively larger transverse dimension in one region for receiving a battery having a corresponding larger transverse dimension and has a relatively smaller transverse dimension at least at one end thereof for receiving a battery having a corresponding smaller transverse dimension. At least one electrical contact in the compartment is movable for making electrical connection to batteries having a relatively shorter length and a relatively longer length.

Abstract: A light device is provided that includes a light source and electrical circuitry for supplying electrical power to the light source. The light device also includes a housing having first and second ends and a hollow interior defining a compartment for holding a power source. The housing comprises a woven fiber thermoset composite. The housing is made by applying woven fibers to a mandrel and impregnating the woven fibers with an epoxy and curing the epoxy impregnated woven fibers to form the thermoset composite housing. An electrical interconnect is provided within the housing having first and second resilient contacts for providing an electrical connection between the power source and the light source.

Abstract: A light device is provided that includes a light source and electrical circuitry for supplying electrical power to the light source. The light device also includes a housing having first and second ends and a hollow interior defining a compartment for holding a power source. The housing comprises a woven fiber thermoset composite. The housing is made by applying woven fibers to a mandrel and impregnating the woven fibers with an epoxy and curing the epoxy impregnated woven fibers to form the thermoset composite housing. An electrical interconnect is provided within the housing having first and second resilient contacts for providing an electrical connection between the power source and the light source.

Abstract: An adapter for replacing an original battery, light or battery powered device utilizing a battery of a first type with a replacement battery light or battery powered device utilizing a battery of a second and different type may comprise first terminals configured similarly to terminals of an original battery, light or battery powered device, second terminals for connecting to a replacement battery, light or battery powered device, and an electronic circuit for controlling charging of the battery of the replacement battery, light or battery powered device connected to the second terminals when a battery charging device for a battery of the first type is connected to the first terminals.

Abstract: A portable light or device may comprise: a light source or operative element; a switch for controlling energization of the light source or operative element; and a housing supporting the light or operative element and the switch. The housing has a compartment having a relatively larger transverse dimension in one region for receiving a battery having a corresponding larger transverse dimension and has a relatively smaller transverse dimension at least at one end thereof for receiving a battery having a corresponding smaller transverse dimension. At least one electrical contact in the compartment is movable for making electrical connection to batteries having a relatively shorter length and a relatively longer length.

Abstract: An electronic circuit and/or method that determines a type and/or size of a battery in a light and controls operation of a light source may comprise: a circuit measuring the voltage of the battery; and a processor for determining the measured battery voltage. The processor may compare the measured battery voltage and a predetermined voltage and set an operating condition of the light source based upon the difference between the measured battery voltage and the predetermined voltage. The processor may apply a predetermined load to the battery for a predetermined time and measure battery voltage during the predetermined time; and determine the difference between the measured voltage of the battery and the measured battery voltage during the predetermined time.