Abstract:
A fiber optic light guide for a vehicle lighting system has a light transmissive core and a light absorptive cladding provided circumferentially about the core. The light guide has a pair of end portions with opposing canted parallel end surfaces. The end surfaces are canted at a predetermined angle greater than the critical angle associated with the light transmissive core material and the surrounding air, so that if the end surfaces are separated light will not be emitted from the fiber optic light guide, but rather reflected off an end surface and into the light absorptive cladding.
Abstract:
A fiber optic light guide for a vehicle lighting system has a light transmissive core and a cladding provided circumferentially about the core. A light absorptive viscous fluid is disposed intermediate the light transmissive core and the cladding, so that if the fiber optic light guide is severed, and the light transmissive core is exposed, the viscous fluid will flow over and cover the exposed light transmissive core.
Abstract:
The present invention is directed to novel AC thin film electroluminescent display devices employing a protective dielectric stripe along the edges of the transparent electrode (or conductor). In particular, the present invention is directed to an AC thin film electroluminescent display device comprising:a multilayer stack including a first dielectric layer; a phosphor layer; and a second dielectric layer; situated on a glass substrate which includes parallel stripes of etched transparent conductors;said multilayer stack further including a protective stripe of dielectric material placed at least along the edges of the transparent conductors.The present invention is also directed to a method for protecting an AC thin film electroluminescent display device against premature breakdown at the edges of the transparent conductors. This protection is achieved by depositing a stripe of dielectric material along the edges of the transparent conductors.
Abstract:
A disk-shaped flashlamp unit for use within an indexing means or mechanism associated with a camera. The unit includes several, e.g. ten, electrically-activated flashlamps radially disposed within the unit's plastic, light-transmitting housing. A pair of planar reflectors are utilized for each lamp to reflect the light therefrom through the housing. Light output can be further enhanced by utilization of two additional planar reflective members adjacent each lamp, the four members surrounding the side and bottom portions of the flashlamp's envelope to thereby direct light emitted from the flashlamp in a substantially singular direction through the peripheral region of the plastic housing. The invention's reflectors also assure prevention of sympathetic ignition.
Abstract:
A photoflash lamp having a glass envelope with a clear protective exterior coating comprising a photopolymer reinforced with glass fibers. In applying the coating, a long strand of glass fibers is wrapped about the lamp envelope, which is then dipped in a liquid photopolymer, or short lengths of glass fiber are dispersed throughout the liquid photopolymer, either by premixing or application after dipping. The wet-coated lamp is then cure-hardened by a short period of irradiation with a source of ultraviolet light.
Abstract:
A portable low-cost copier comprises a housing having a bottom surface at which a photosensitized sheet and an original can be disposed. Disposed within the housing is a chemical flashlamp which is ignited to make the copy.
Abstract:
A lamp assembly for an automotive vehicle includes a remote laser light source coupled with a light transmitting fiber optic light guide which illuminates a unitary thin sheet optic having a diffractive optical element portion, a manifold section, and a kicker section.
Abstract:
A vehicle lighting system, which includes a remote light source having an interlock circuit, an optical element, and a fiber optic light guide having a coextensive electrically conductive wire, the light guide electrically coupled to the light source and optical element so that if the light guide should become disconnected or severed, the interlock circuit will prevent power from being transmitted to the remote light source.
Abstract:
A lighting system for an automotive vehicle includes a remote laser light source coupled with a light transmitting fiber optic light guide bundle which illuminates a uniform thickness thin sheet optical element having a plurality of micro-optical wedges formed thereon and a plurality of diffractive optical elements disposed intermediate the fiber optic light guide bundle and the uniform thickness thin sheet optical element for receiving light and redirecting the light to predetermined regions of the plurality of micro-optical wedges.
Abstract:
A narrow passband, reflective optical filter at a wavelength L, has a container filled with a pressurized gas, the pressurized gas having a ground state transition corresponding to the wavelength L and transparent to all other wavelengths. The container has at least one optically transparent major planar surface serving as the face thereof, whereby incoming broadband light is absorbed by the gas, except at its resonance wavelength L, which is specularly reflected. The optically transparent face of the container optionally has a broadband anti-reflective coating to improve its out-of-band rejection of unwanted wavelengths of the light signal. An optical system utilizing this narrow passband, reflective optical filter has at least one optical element to focus incoming broadband optical signals on the optically transparent face of the narrow passband, reflective optical filter and an optical signal detection component positioned to detect reflected narrowband light of wavelength L specularly reflected from the filter. An optical imaging system utilizing this narrow passband, reflective optical filter has at least one narrow passband, reflective optical filter, at least one optical element to focus incoming broadband optical signals on the optically transparent face of the filter, and an imaging optical signal detection component positioned to detect and view reflected narrowband light of wavelength L specularly reflected from the filter, thereby providing an image of the source of the optical signals.