Abstract: The systems and methods described herein include, among other things, a technique for calibrating the outputs of multiple sensors, such as CCD devices, that have overlapping fields of view and mapping the pixels of those outputs to the pixels of a display screen by means of a lookup table so that a user can see a selected field of view within the larger fields of view that are seen by the sensors.

Abstract: Apparatus and methods for converting a monochrome night vision or other electro-optical device into one that provide a sensation of full color, including from red to blue with white and black. Preferred apparatus of the invention comprise an electro-optical viewing device, particularly a mono-chromatic night vision device, that comprises a plurality of light filters. A first light filter system is positioned at a light-input end of the device, and a second light filter system is positioned at a light-output end of the device, whereby the plurality of filters systems provide to a viewer a sensation of full color, including from red to blue with white and black.

Abstract: A technique for using only two different color elements in a display to give a viewer the effect of a full color range output that would otherwise require the use of three different color elements, such as red, green and blue. In a particular embodiment a display is made up of a matrix of alternating red and green light-emitting or red and green passing filtering elements; when seen as a whole, the display can create the impression of a full-color depiction of text, graphics and/or photos. The brightness of each light-emitting or filtering element in the display is varied to bear a selected relationship to the brightness the point it represents in a full-color image would have if that point were to be seen through a long wave pass filter (for the red element) or short wave pass filter (for the green element).

Abstract: Apparatus and methods for converting a monochrome night vision or other electro-optical device into one that provide a sensation of full color, including from red to blue with white and black. Preferred apparatus of the invention comprise an electro-optical viewing device, particularly a mono-chromatic night vision device, that comprises a plurality of light filters. A first light filter system is positioned at a light-input end of the device, and a second light filter system is positioned at a light-output end of the device, whereby the plurality of filters systems provide to a viewer a sensation of full color, including from red to blue with white and black.

Abstract: System and method for limiting reflections off of surfaces, such as optical lens and field goggles. A set of vanes are mounted next to the surface, with one end near the surface and the other end away from the surface. The vanes are mounted closer together at their end near the surface. This permits a wide field of view (FOV) for surfaces such as optical lenses. The vanes can be arranged in various forms, including concentric rings.

Abstract: Featured is a method and device that minimize the effects of reflections from a transparent surface while viewing an object or target area through such reflective surface and which accomplishes this without affecting the crucially important accuracy of showing where a projectile from a weapon should impact a target. A method for viewing an object from a first side of a transparent medium, the first side being a reflective surface, when the object is located on an opposite side of the transparent medium, includes the steps of providing a telescopic viewing mechanism, mounting a filter at an exit aperture of the viewing mechanism and passing light from the object through the viewing mechanism and through the filter. The filter is configured to significantly attenuate light being reflected from the first side and in a particular embodiment is a polarizing filter.

Abstract: The present invention relates to improved optical devices and reflection control techniques. In one aspect, the invention provides an optical device comprising an array of substantially tubular elements and one or more reflective surfaces, wherein at least one of the reflective surfaces positioned behind the tubular elements is tilted with respect to the optical path of the device. This orientation of the reflective surface results in incident light from a source in the field of view of the device being reflected from the tilted surface and captured by the array of elements, rather than the reflected light being projected outward from the device where it can be perceived by a viewer, particularly a viewer in the field of view.

Abstract: The present invention relates to improved light devices, such as illumination or signal devices used on vehicles for managing the light reflections from reflective surfaces of such devices. In one exemplary embodiment thereof, a light device includes an array of tubular elements partially embedded in a reflective surface, such as a surface of a lens of said device, which lens focuses, directs or disperses light from the device. The use of such an embedded array of tubular elements causes the light source to appear as a substantially opaque surface when the light device is not operative and permits an effective amount of light to be projected from the light device when the device is operative.

Abstract: A structure for use in reducing reflections as from a light reflecting surface of an optical device. The structure utilizes a plurality of substantially tubular elements mounted in front of the reflective surface. In a preferred embodiment, the aspect ratio of the tubular elements being selected to be substantially the same as that of the optical device.

Abstract: A camera for photographing architectural scale models and the like to obtain photographs having natural full-scale perspective. The camera includes a film back adapted to receive panchromatic, preferably, self-processable type film. From the film back extends a relatively long body which tapers rather sharply from the film back to a narrow pedestal-like base upon which the camera stands and which allows easy access to model features. An optical system resides in the base and includes a long focal length positive lens and pinhole adapted to the long tapered body and an afocal, simple reversed Galilean telescope which serves to establish the camera field of view. Chromatic aberrations which might otherwise cause multiple images due to the long camera optical path are eliminated by appropriate filtering.

Abstract: A speedometer/odometer system for use on a bicycle which system uses a magnet/coil arrangement and a signal processing means for providing a count of the spokes of a wheel as they pass the magnet/coil arrangement the count being determined over a selected time period to provide a digital signal speed indication or being cumulatively counted to provide a digital signal indication of distance travelled. The system can be easily calibrated by using means for producing a calibration constant which can be used to multiply the digital signals and the resultant signal supplied to a suitable digital display means for visually displaying the speed or distance for the rider.