Abstract: An optical device may include an optical body having first and second opposing sides, and passageways extending between the first and second opposing sides. The optical device includes a mirror layer carried by the optical body adjacent the second opposing side, thermally conductive fingers extending in the passageways, and a heatsink carried by the optical body adjacent the first opposing side and coupled to the thermally conductive fingers.

Abstract: A detector is for identifying chemicals in a sample. The detector may include a photodetector comprising SiC semiconductor material and configured to have an acceptor energy band of range Ea??Ea to Ea+?Ea. The SiC semiconductor material may be doped with a dopant to exceed a threshold dopant concentration level. The photodetector may be configured to receive fluorescence information from the sample.

Abstract: A detector is for identifying chemicals in a sample. The detector may include a photodetector comprising SiC semiconductor material and configured to have an acceptor energy band of range Ea??Ea to Ea+?Ea. The SiC semiconductor material may be doped with a dopant to exceed a threshold dopant concentration level. The photodetector may be configured to receive fluorescence information from the sample.

Abstract: A distributive transmissometer, comprising a series of light sources that illuminate and map out a volume of space to be sampled to a one-dimensional space, a light detector, the one-dimensional space being mapped to the light detector such that spatial dust density distribution of the volume to be sampled can be determined; and, a lens for focusing light emitted by the light sources toward the light detector.

Abstract: A distributive transmissometer, comprising a series of light sources that illuminate and map out a volume of space to be sampled to a one-dimensional space, a light detector, the one-dimensional space being mapped to the light detector such that spatial dust density distribution of the volume to be sampled can be determined; and, a lens for focusing light emitted by the light sources toward the light detector.

Abstract: An image presentation device (100) includes a set of color light sources (122, 124, 126) and a micro-display panel (150) capable of operating in both image processing and non-image processing modes. A sensor (170) is coupled to the micro-display device (150) to convert light received from the light source (122, 124, 126) into a signal value representing the output from the light source (122, 124, 126). A controller (110), responsive to the signal value, selectively and/or collectively varies the input to each of the individual light sources (122, 124, 125) to provide for consistent operating performance over the life of the product.