Abstract: A vehicle comprising an LED headlamp including a lens and an LED light source. A heating element is provided at the lens. A control module is in communication with the heating element. A temperature sensor that is configured to generate a signal indicative of an outside temperature is in communication with the control module, and a speed sensor that is configured to generate a signal indicative of a vehicle speed is in communication with the control module. Upon receipt by the control module of the signal indicative of the outside temperature that is less than a predetermined temperature and upon receipt by the control module of the signal indicative of the vehicle speed that is greater than a predetermined vehicle speed, the control module is configured to activate the heating element.

Abstract: A vehicle comprising an LED headlamp including a lens and an LED light source. A heating element is provided at the lens. A control module is in communication with the heating element. A temperature sensor that is configured to generate a signal indicative of an outside temperature is in communication with the control module, and a speed sensor that is configured to generate a signal indicative of a vehicle speed is in communication with the control module. Upon receipt by the control module of the signal indicative of the outside temperature that is less than a predetermined temperature and upon receipt by the control module of the signal indicative of the vehicle speed that is greater than a predetermined vehicle speed, the control module is configured to activate the heating element.

Abstract: Disclosed is gypsum board with good strength, as well as gypsum slurries, methods, and cover sheets. Board is formed using one or more of starch, electrolyte, and/or hydrophilic material. These strength ingredients can be applied onto a cover sheet before contacting a gypsum slurry used in forming a gypsum layer in the board, and/or can be incorporated into the gypsum slurry used for forming one or more gypsum layers in the board, e.g., the board core and/or a concentrated gypsum layer between the core and one or both cover sheets.

Abstract: An LED headlamp is disclosed, wherein the headlamp is a replacement for a seven inch headlamp. The headlamp includes a housing adapted to replace any conventional seven inch round headlamp, a first light source adapted to be coupled to a source of electrical energy, a second light source adapted to be coupled to a source of electrical energy, a first optical system disposed adjacent the first light source, wherein the first optical system is adapted to provide a low beam lighting pattern, a second optical system disposed adjacent the second light source, wherein the second optical system is adapted to provide a high beam lighting pattern, and a cover lens coupled to the housing for enclosing the first light source, the second light source, the first optical system, and the second optical system within the housing.

Abstract: An LED headlamp is disclosed, wherein the headlamp is a replacement for a seven inch headlamp. The headlamp includes a housing adapted to replace any conventional seven inch round headlamp, a first light source adapted to be coupled to a source of electrical energy, a second light source adapted to be coupled to a source of electrical energy, a first optical system disposed adjacent the first light source, wherein the first optical system is adapted to provide a low beam lighting pattern, a second optical system disposed adjacent the second light source, wherein the second optical system is adapted to provide a high beam lighting pattern, and a cover lens coupled to the housing for enclosing the first light source, the second light source, the first optical system, and the second optical system within the housing.

Abstract: A lens, suitable for automotive applications, for use with a light source is provided. The lens has a main body defining a cross sectional shape with a curved side and a straight side. The main body is formed by rotating the cross sectional shape about an axis of revolution located outside the main body. The axis of revolution is parallel to the straight side of the cross section and passes through a focal point defined by the curved side.

Abstract: An LED unit (20) having increased light output. The LED unit (20) includes a submount substrate (22) having a cavity (24). An LED chip (30) is electrically mounted within the cavity (24) and a phosphor layer (34) is deposited in the cavity (24) that converts blue light from the LED chip (30) into white light suitable for a vehicle headlight (10). The walls of the cavity (24) are metalized (40) to increase the light output intensity. In one embodiment, a clear protective layer (46) is deposited in the cavity (24) over the phosphor layer (34).

Abstract: A vehicle headlight (12) that employs a plurality of LED units (38) that emit white light. Each LED unit (38) employs chip-on-board technology where LED semiconductor chips (64) are mounted directly to a submount substrate (56) using solder or stud bumps (60). An elongated lens (28) is molded over the LED unit (38) in contact with a base substrate (48). Light emitted from the semiconductor chip (64) is reflected and directed by the lens (28) to generate a beam of light (58). Some of the light emitted from the LED semiconductor chip (64) is redirected back to the submount substrate (56) to be reflected back into the lens (28) to increase the light intensity of the LED unit (38). Several of the elongated lens (28) and associated LED units (38) are optically glued to a single prism (24) that collects all of the light beams from all of the LED units (38).

Abstract: An LED headlamp assembly (10) for a vehicle. The headlamp assembly (10) includes a plurality of LED units (14) mounted to a common carrier (16), where the LED units (14) include one or more LEDs and generate white light. The headlamp assembly (10) further includes a headlamp housing (28) that is mounted to the vehicle by a mounting frame (52). The carrier (16) is sealed to the housing (28) by a flexible bellows (34). An outer lens (26) is mounted to the housing (28) so that the LED units (14) are positioned within a sealed compartment (42). A backside of the carrier (16) outside of the sealed compartment (42) includes fins (46) or other heat sinking devices to remove heat generated by the LED units (14). The frame (52) allows convective air to flow around the heat sink (46) to remove heat from the LED units (14).

Abstract: A center high mounted stop lamp (12) including a plurality of LEDs (34) mounted on a printed circuit board (30). TIR lenses (40) are employed to focus the light from the LEDs (34) to give an even lighting appearance. The TIR lenses (40) include a prism (44) for directing the light in a desired direction. The circuit board (30) and lenses (40) are mounted in a housing (18) so that each LED (34) includes a separate lens (40) configured relative thereto to provide the desired collection and reflectance of the light. The housing (18) includes a plurality of posts (70) that extend through openings (48, 50) in the circuit board (30) and the lenses (40) to align the LEDs (34) to the lenses (40) relative to the housing (18).