摘要:
A method for transmitting a signal in an optical system includes generating an optical signal along an optical axis for transmission through an optical element, positioning the optical element so that a surface discontinuity is positioned along the optical axis such that the optical signal defines a substantially radially symmetric intensity profile, and launching the optical signal into an input face of an optical fiber such that the intensity profile is substantially null proximate an optical axis associated with the optical fiber.
摘要:
A method for transmitting a signal in an optical system includes generating an optical signal along an optical axis for transmission through an optical element, positioning the optical element so that a surface discontinuity is positioned along the optical axis such that the optical signal defines a substantially radially symmetric intensity profile, and launching the optical signal into an input face of an optical fiber such that the intensity profile is substantially null proximate an optical axis associated with the optical fiber.
摘要:
A spectrometer for use with a desired wavelength range includes an array of filters. Each filter outputs at least two non-contiguous wavelength peaks within the desired wavelength range. The array of filters is spectrally diverse over the desired wavelength range, and each filter in the array of filters outputs a spectrum of a first resolution. An array of detectors has a detector for receiving an output of a corresponding filter. A processor receives signals from each detector, and outputs a reconstructed spectrum having a second resolution, the second resolution being higher than any of the first resolution of each filter. Filters and detectors may be arranged into a plurality of imaging units, each imaging unit including first and second filters and first and second photosensing regions. A processor receives signals from each imaging unit, and generates a reconstructed spatial image comprised of discrete spatial units corresponding to each imaging unit.
摘要:
A camera system may include an optics stack including two substrates, the optics stack forming an imaging system, each substrate having two surfaces that are parallel to each other and perpendicular to an optical axis of the imaging system, the optics stack including a securing region on opposing surfaces of the two substrates, the two substrates being secured together on a wafer level at their respective securing regions, at least one of the surfaces of the two substrates including a refractive surface of the imaging system, a detector substrate having an active area and a cover structure protecting at least the active area of the detector substrate, the optics stack being secured to an upper surface of the cover structure.
摘要:
A liquid crystal light valve projection system is provided with increased optical overshoot, and thereby decreased optical response time, by employing a liquid crystal mixture (52) having molecules substantially perpendicularly aligned to the face of the liquid crystal light valve electrodes (42,70) and axially twisted. The axial twist of the liquid crystal molecules is provided by laying down alignment grooves (90,92,96,98) for the liquid crystal mixture that are oriented with respect to one another, on the opposite alignment layers, by an angle of between about 45.degree. and 90.degree.. This mutually angled orientation of the opposed alignment grooves on the opposed alignment layers causes optical overshoot of the system to vary when the entire liquid crystal cell (34) is rotated relative to the output polarizer (18) about an axis perpendicular to the output face of the cell. This rotation of the cell (34) of twisted perpendicular liquid crystal relative to the output polarizer (18) allows a faster optical rise time to be achieved.
摘要:
A camera system may include an optics stack including two substrates, the optics stack forming an imaging system, each substrate having two surfaces that are parallel to each other and perpendicular to an optical axis of the imaging system, the optics stack including a securing region on opposing surfaces of the two substrates, the two substrates being secured together on a wafer level at their respective securing regions, at least one of the surfaces of the two substrates including a refractive surface of the imaging system, a detector substrate having an active area and a cover structure protecting at least the active area of the detector substrate, the optics stack being secured to an upper surface of the cover structure.
摘要:
An optical device includes a substrate. a non-planar transparent structure on a first surface of the substrate, the non-planar transparent structure being made of a first material, and a molded refractive surface on the first surface of the substrate adjacent the non-planar transparent structure, the molded refractive surface being made of a second material, different from the first material.
摘要:
An optical bidirectional link comprising: a module having a lower surface and an upper surface. The upper surface having disposed thereon a submodule having an optical transmitter and detector mounted thereon. Circuitry mounted on the upper surface. The circuitry having electronic components for effecting bidirectional communication via the optical transmitter and detector. A cover disposed over the upper surface of the module, wherein the submodule further comprises a silicon substrate having an optical fiber disposed in v-groove, a laser, reflective surfaces, and a holographic plate disposed on an upper surface of the silicon substrate.