Abstract: In one embodiment, a light-emitting device having a reflector, a light source die, a light scattering member, a first encapsulant, and a second encapsulant is disclosed. The light scattering member may be configured to scatter light emitted from the light source die, before the light being transmitted into the second encapsulant where a lens surface is configured to collimate the light towards a first direction. The light scattering member may be light-scattering particles distributed uniformly within the first encapsulant, a roughened surface of the first encapsulant, and a deposited light scattering layer on the first encapsulant, air bubbles, or a substantially flat layer. The light scattering member may be provided outside a reflector cup.

Abstract: In an embodiment, the invention provides a method of color control in a backlighting system comprising a plurality of light sources, a plurality of color sensors, a plurality of PWM controllers, and a video input for receiving video data. The plurality of light sources is activated during a first operative mode to produce white light. The plurality of light sources is controlled during a second operative mode to produce white light.

Abstract: In an embodiment, the invention provides a method of color control in a backlighting system comprising a plurality of light sources, a plurality of color sensors, a plurality of PWM controllers, and a video input for receiving video data. The plurality of light sources is activated during a first operative mode to produce white light. The plurality of light sources is controlled during a second operative mode to produce white light.

Abstract: A color printing system includes a color monitor and printer having different color gamuts. A color chart is printed out by the printer. A light source outputs light to the color printer and a color sensor detects the light reflected from the color chart printout. The sensor outputs sensor color values representing the light received from the color chart printout. A print-preview matrix is calculated from the monitor color chart values and the sensor color values. An image is input to and displayed by the monitor and is converted into a print-preview image using the print-preview matrix. The monitor displays the monitor image and the print-preview image before printing the image.

Abstract: A meter for measuring the turbidity of a fluid includes a light source for directing a light beam through a fluid under test towards a reflective surface and a sensor for detecting light reflected from the reflective surface and passing back through the fluid under test. The meter outputs a signal indicative of the turbidity of the fluid under test.

Abstract: A meter for measuring the turbidity of a fluid includes a light source for directing a light beam through a fluid under test towards a reflective surface and a sensor for detecting light reflected from the reflective surface and passing back through the fluid under test. The meter outputs a signal indicative of the turbidity of the fluid under test.

Abstract: In one embodiment of the invention there is disclosed a device for correcting the output of a light source such that the corrected output conforms to a known standard. The corrected light outputs are proportional to the colors contained in the light impacting the color sensor. In one embodiment, memory contains at least one color matching function pertaining to the specific color sensor and a controller works with the memory to convert the color sensor light outputs to a specific color PCS space based on the matching function. If desired, a user can select a desired PCS protocol.

Abstract: In one embodiment, apparatus for characterizing a target is provided with a plurality of light sources that are positioned to illuminate a target. The light sources emit different wavelengths of light. A color sensor is positioned to receive and sense different wavelengths of light reflected from the target. A control system is operably associated with the plurality of light sources and the color sensor to A) in a calibration mode, operate the light sources and separately regulate drive signals of light sources emitting different wavelengths of light, in response to outputs of the color sensor, and B) in an operational mode, i) operate the light sources using the regulated drive signals, and ii) characterize the target in response to data output from the color sensor. A textile characterization system is also disclosed.

Abstract: A system and method is disclosed for allowing a solid substrate, such as a printed circuit board (PCB), to act as the support structure for an electronic circuit. In one embodiment, the LEDs which form a part of a scrambler assembly are constructed on a first substrate and the electrical connections are run to the edges of the substrate and end in electrical contacts positioned thereat. The substrate is then connected to the scrambler package by a series of electrical and mechanical connections to form the LED package. The electrical contacts which are part of the LED package extend from the LED package so as to enable electrical contact with a separate controller substrate.

Abstract: A counterfeit ink detector comprises a color printer calibrated by determining authentic ink color values for several authentic inks used by the color printer. A multi-color pattern is printed using multi-colored inks of a print cartridge. A light source outputs light to the color pattern and a color sensor detects light from the light source reflected from the color pattern. A processor processes the detected light to calculate pattern color values for color components of the color pattern, and compares the pattern color values to the authentic ink color values. A counterfeit ink signal is output by the processor if the difference between the pattern color values and the authentic ink color values is greater than a threshold value indicating counterfeit ink.

Abstract: A color printing system includes a color monitor and printer having different color gamuts. A color chart is printed out by the printer. A light source outputs light to the color printer and a color sensor detects the light reflected from the color chart printout. The sensor outputs sensor color values representing the light received from the color chart printout. A print-preview matrix is calculated from the monitor color chart values and the sensor color values. An image is input to and displayed by the monitor and is converted into a print-preview image using the print-preview matrix. The monitor displays the monitor image and the print-preview image before printing the image.