A wide angle strip camera system which, in combination, includes a wide angle lens, having a curved conjugate focal surface, a first image-receiving surface, a first curved exposure slit disposed adjacent the first image-receiving surface; the lens, first image-receiving surface and first exposure slit being so mounted that a first curved strip at a constant preselected field angle in an object field is focused on the first image-receiving surface; a second image-receiving surface; a second curved exposure slit disposed adjacent the second image-receiving surface; fold flat elements interposed between the lens and the second exposure slit; the lens, fold flat elements, second image-receiving surface, and second exposure slit being so mounted that a second curved strip at a second constant preselected field angle in the object field is focused on the second image-receiving surface. The system is fixedly supported in a vehicle, such as an aircraft, whereby the forward velocity of the vehicle provides image motion. The exposure slits are curved to correspond to field points of equal range, respectively, so that there is negligible differential image motion within the slits, the slits being of such width in the direction of vehicle motion as to result in uniform exposure; and the image-receiving surfaces are driven in the direction of vehicle movement at speeds corresponding to the altitude-velocity ratio of the vehicle with respect to the object field.
A wide-field-of-view projection display comprises a circularly symmetric lens and an array of light emitters, positioned along the focal circumference of the circularly symmetric lens so that light from each of the light emitters is substantially collimated by the lens in a different direction. A ray-diverting means, such as a slab waveguide or a reflector, ejects the collimated light out of the plane of the lens to the viewer. The planar circularly symmetric lens has no aberration, allowing adjacent views to be seamlessly joined because they can all be diffused by the same angular amount.
Method of surveying for the compilation of digital files of detailed, three-dimensional, topographic data, consisting of co-ordinates of points in the terrain and the corresponding topographic point codes, line codes and plane codes 1. From at least three successive station positions, either photographically or electronically panoramic recordings are made of the terrain surrounding each station position. Each recording contains the entire horizon, from the zenith to far under the horizon, so that a sequence of recordings are obtained. Compared to the local horizon-plane, the spatial directions are determined of points in the terrain to-be-defined using measurement means and calculation means, which allow the determination with high precision, of the distance between the center of the recording and points to-be-defined in co-ordinates and of the direction of the line between the center of the recording and the point to-be-defined in relation to a fixed orientation taken at random in that recording. Special measuring instruments are used.
A texturing system for brick fabrication comprising a plurality of slapping members mounted to at least one transmission belt for engaging individual edges of bricks within an array of bricks. The bricks are positioned beneath the slapping members while in a deformable state. An array of staggered lifting plates are positioned beneath the bricks for exposing opposite edge portions thereof to the slapping elements. The transmission belt is driven transversely to the movement of the bricks array for imparting the texturing force of the slapping elements to the underlying bricks along upstanding edge portions thereof. A series of three transmission belts are preferably used above a staggered pattern of two plate rows for treating the longitudinal sides of all bricks within an array. In this manner, an improved rough, used brick appearance may be imparted to individual brick elements while disposed in a common fabrication array.
A camera (10) comprises a track (14) and a camera unit (12) which is operable to move along the track (14). The camera unit (12) comprises a slit aperture camera for producing a panoramic image. A motor (28) on the camera unit (12) provides power to wheels (20) which are matingly engaged with the upper and lower rails (16, 18) of the track (14). The upper and lower rails (16, 18) are operable to supply electricity to the motor (28). The speed of the camera unit (12) along the track (14) and the speed of the film within the camera unit (12) may be selected by the user.
A topological panorama camera has a track or other system upon which a linescan camera can move in one, two or three dimensions while recording the image of an object. The path, speed, acceleration and direction of the linescan camera can be controlled, as can the path, speed, acceleration and direction of the object. Further, the scan rate of the camera and the orientation of the scan can be controlled. These factors allow the user to record an image of an object which change many of the properties of the object. The relative motion of the linescan camera and the object allows a student to create images which change properties of an object from one geometry to another.
