Abstract:
A thermally conductive lamp reflector is provided that dissipates heat from a light source within the reflector. The reflector assembly includes a shell having a metallized layer on its surface. The shell is made from a composition including about 30% to about 80% by volume of a base polymer matrix and about 20% to about 70% by volume of a thermally conductive filler material. The reflector has a thermal conductivity of greater than 3 W/m° K and preferably greater than 22 W/m° K. The reflectors can be used in automotive headlamps, flashlights, and other lighting fixtures. A method of forming the lamp reflector is also provided.
Abstract:
An apparatus (10) having a switchable display/mirror (11) and a display driver (12). In one mode of operation the switchable display/mirror provides a visual display to a viewer (using, for example, an emissive array). In another mode of operation the switchable display/mirror provides a mirror-like reflection. In a preferred embodiment, the switchable display/mirror includes a transparent organic light emitting diode array (31) that operates in conjunction with a reflective electrode (32) and a switchable circular polarizer (23). In one embodiment the switchable circular polarizer (23) can be comprised of a switchable linear polarizer (34) and a quarter waveplate (36).
Abstract:
The invention relates to a method of spatial visualization of a scene or an object, in which several views of the scene or object are decomposed into bits of partial information, which are made optically visible by image rendering elements, and in which neighbored image rendering elements emit light of different wavelengths or wavelength ranges, and in which propagation directions for the light are given by means of wavelength filters in such a way that an observer will see predominantly bits of partial information of a first selection of views with one eye and predominantly bits of partial information of a second selection with the other eye. The invention is intended to improve the quality of spatial visualization. In such a method, at least one image rendering element is simultaneously allocated bits of partial information from at least two different views, the allocation being made in such a way that the wavelength of the partial information is always equal to the wavelength, or lies in the wavelength range, of the light emitted by the allocated image rendering element.
Abstract:
An optical system is disclosed which has a small size as a whole and capable of suppressing loss in the light amount in a separating member even when a relatively large-sized scanning device and a reflective diffusing member are used. The optical system comprises a scanning optical system including a scanning device which scans a light flux from a light source at a scanning point and a display optical system which leads an image formed by the scanned light flux to an exit pupil of the optical system. An optical path of the scanning optical system and an optical path of the display optical system have a mutually overlapping part, and the optical paths are separated by a separating member. The scanning optical system forms a conjugate point conjugate with the scanning point at substantially a position of the separating member.
Abstract:
A self-luminous image display apparatus of the present invention includes an output section for displaying an image, a reflection section provided on a rear side of the output section with a reflective surface thereof facing the output section, and a light-emitting section provided on a rear side of the output section. The output section includes a linear polarization device provided so as to cover a display surface for transmitting only predetermined linearly-polarized light of ambient light, and a retardation film provided closer to the light-emitting section than the linear polarization device for turning the linearly-polarized light transmitted through the linear polarization device into circularly-polarized light. The linear polarization device has a degree of polarization greater than 70.0%.
Abstract:
Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.
Abstract:
A scanning microscope having an acoustooptical component that splits out illuminating light for illumination of a sample from the output light of at least one light source, and conveys detected light proceeding from the sample to a detector, comprises, in the beam path of the output light from which the illuminating light is split out, at least one monitoring detector which is the measuring element of a control circuit. The scanning microscope is characterized in that fluctuations over time in the illuminating light power level are largely eliminated.
Abstract:
A fast translation stage for a scanning probe microscope is provided. The stage includes at least one axis of translation driven at the natural resonant frequency of the translation stage such that distortion associated with rapid changes in scan direction is avoided. In one embodiment, the stage includes a sample plate or support that is driven, preferably by one or more piezoelectric actuator elements, so that the plate translates along the fast scan frequency at its resonant frequency.
Abstract:
An optical system and method for positioning a first object with respect to a second object, such as a refueling aircraft and an unmanned air vehicle are provided with the system, including a pattern of reflectors, an optical receiver, an optical transmitter, and a processor. The method and system permit processing two dimensional images of reflected signals and ranging of the reflector to the transmitter. An optical transceiver may also be used instead of a discrete receiver and transmitter. The reflector may include a pattern of peripheral retroreflectors and limit-angle incident retroreflectors that only reflect light incident upon the retroreflector within a predefined range of incident angles.
Abstract:
A method and for acquiring interferogram data and a Fourier transform spectrometer, including a detector that provides an output signal that exhibits non-linear distortion in a measured interferogram represented by a power series Imnulla1Inulla2I2nulla3I3null . . . , comprising the steps of representing a measured spectrum as Smnulla1 Snulla2(S*S)nulla3 (S*S*S)nullb3 (S*S*S*S)null . . . where S is the spectrum of the linear interferogram and * indicates convolution, expressing a linear interferogram I as a power series of a measured interferogram Im as in Inullb1Imnullb2Im2nullb3Im3null . . . , expressing the linear spectrum as a power series of the spectra of the interferogram powers Snullb1S1nullb2S2nullb3S3 . . . , and obtaining the coefficients bi where Snull0.