Abstract: An apparatus for measuring light properties includes a housing defining a light input port; as well as a first light detector; a second light detector; and a coupling element. The first light detector is a single channel light detector or a multiple channel light detector. The second light detector is a multiple channel light detector. The coupling element is configured and arranged to selectively couple light incident from the light input port to one of the first light detector and the second light detector. As an alternative, a beam splitting element can be used instead of the coupling element. The beam splitting element receives light from the light input port and then splits the light and delivers a portion of the light to the first light detector and a portion of the light to the second light detector.

Abstract: An apparatus for measuring light properties includes a housing defining a light input port; as well as a first light detector; a second light detector; and a coupling element. The first light detector is a single channel light detector or a multiple channel light detector. The second light detector is a multiple channel light detector. The coupling element is configured and arranged to selectively couple light incident from the light input port to one of the first light detector and the second light detector. As an alternative, a beam splitting element can be used instead of the coupling element. The beam splitting element receives light from the light input port and then splits the light and delivers a portion of the light to the first light detector and a portion of the light to the second light detector.

Abstract: A device for measuring the output of an LED with a detector under different distance conditions without requiring the movement of either the LED or the detector. An exemplary embodiment of the present invention implements the testing conditions specified in CIE 127 allowing the determination of Averaged LED Intensity at the specified distances of 100 mm and 316 mm while keeping the physical distance between the LED and the detector fixed at the shorter distance of 100 mm. The exemplary embodiment comprises an optical element that can be selectively inserted into the optical path between the LED and the detector to make the separation appear to be the longer of the two distances. The optical element comprises a lens assembly and a detector aperture that creates a virtual image of the detector aperture at the longer of the two distances. The detector aperture is dimensioned so that the virtual image of the detector aperture has the area required by the standard.

Abstract: A device for measuring the output of an LED with a detector under different distance conditions without requiring the movement of either the LED or the detector. An exemplary embodiment of the present invention implements the testing conditions specified in CIE 127 allowing the determination of Averaged LED Intensity at the specified distances of 100 mm and 316 mm while keeping the physical distance between the LED and the detector fixed at the shorter distance of 100 mm. The exemplary embodiment comprises an optical element that can be selectively inserted into the optical path between the LED and the detector to make the separation appear to be the longer of the two distances. The optical element comprises a lens assembly and a detector aperture that creates a virtual image of the detector aperture at the longer of the two distances. The detector aperture is dimensioned so that the virtual image of the detector aperture has the area required by the standard.

Abstract: A method and apparatus for temporal source analysis using array detectors is provided. The invention allows synchronization of an imaging device with a temporally discontinuous illumination source, for example, a raster scan source or a strobed source. Moreover, a fast scan of signals through an array detector may be used to determine signals or data of interest, and to thence process only the data of interest to determine such temporal measurements. A signal analyzer and method are disclosed for accurately determining the timing, for example the ON time, of a timing source using an array detector. Temporal source analysis and synchronization are automatically performed using a fast scan technique for reading data from the array detector.

Abstract: A system and method for inspecting an image-producing display according to a predetermined footprint is disclosed. The system includes a platform fixed to a first multi-axis positioning unit for supporting the display. A sensing head is disposed in confronting relationship with the platform to detect light produced by the display. The sensing head is carried by a second multi-axis positioning unit. The system also includes a controller having outputs coupled to the respective first and second positioners. The controller is operative to generate control signals for manipulating the respective positioners and arranging the display and the sensing head into one or more relative orientations defining the inspection footprint.