摘要:
A wide field of view monocentric lens system for an infrared aerial reconnaissance camera includes front and rear lens shell elements and a core lens element, with the number of front and rear shell lens elements depending on the IR band of interest (LWIR, MWIR or SWIR). Infrared radiation entering the monocentric lens passes sequentially through the front shell lens element(s), the core lens element, and the rear shell lens element(s) and is focused onto a curved focal surface. The front shell lens element(s) and the rear shell lens element(s) are made of material having a relatively higher refractive index or a relatively higher optical dispersion, or both, in the band of interest, as compared to the core lens element.
摘要:
A wide field of view monocentric lens system for an infrared aerial reconnaissance camera includes front and rear lens shell elements and a core lens element, with the number of front and rear shell lens elements depending on the IR band of interest (LWIR, MWIR or SWIR). Infrared radiation entering the monocentric lens passes sequentially through the front shell lens element(s), the core lens element, and the rear shell lens element(s) and is focused onto a curved focal surface. The front shell lens element(s) and the rear shell lens element(s) are made of material having a relatively higher refractive index or a relatively higher optical dispersion, or both, in the band of interest, as compared to the core lens element.
摘要:
A method and system for displaying to a pilot, or other airborne personnel, high resolution video signal content on a lower resolution display, by providing a plurality of pilot selectable aspects of the high resolution video signals, which are predetermined to accentuate a particular characteristic of said high resolution video signals, where the aspects are non-linear mappings of the high resolution signals (x) to (y) on said lower resolution display, where the non-linear mapping has y determined by a constant with an exponent which includes x and a logarithmic constant.
摘要:
A computer implemented method for displaying document information includes receiving a document, identifying a plurality of different terms in the document, determining positions of the terms in the document, and creating an index of the terms on the document. The plurality of terms in the index are indexed to the plurality of positions in the document such that selection of any of the terms in the index identifies the selected term in the document
摘要:
A method for associating graphical information and text information includes providing the graphical information, the graphical information comprising at least one identifier in the graphical information for identifying at least one portion of the graphical information. The method further includes providing the text information and associating the portion with the text information through a commonality between the identifier and the text information.
摘要:
A method for associating graphical information and text information includes providing the graphical information, the graphical information comprising at least one identifier in the graphical information for identifying at least one portion of the graphical information. The method further includes providing the text information and associating the portion with the text information through a commonality between the identifier and the text information.
摘要:
Disclosed is a polishing composition for refinishing a plastic surface of a compact disk. The composition is made of (a) from about 15 to about 25 weight percent of a solvent for the plastic surface, (b) from about 12.5 to about 35 weight percent of an abrasive particulate, (c) from about 15 to about 35 weight percent of a petroleum distillate, (d) from about 2 to about 10 weight percent of a hard wax, and (e) from about 15 to about 25 weight percent water.