Abstract: A flash control circuit is provided for a flash circuit having a flash capacitor and a flash illumination device. The flash control circuit comprises a current limiting device in series with the flash illumination device and a bypass circuit in parallel with the current limiting device. The bypass circuit has a first setting that bypasses the current limiting device and a second setting that does not bypass the current limiting device.

Abstract: A camera has a body and a taking lens mounted to the body. The taking lens defines a subject field. A viewing window is joined to the body. The viewing window is transmissive of a light image of the subject field. The viewing window bears a holographic image of a reticle. A light source faces the viewing window and illuminates the holographic image. The reticle produced can be binocularly viewable, that is, viewable by the photographer with both eyes while the photographer looks through the viewing window to compose a scene image for picture taking.

Abstract: A tamper resistant electronic flash unit comprising a pair of first and second flash circuit boards arranged parallel to one another in order to have respective inner sides that face towards each other and respective outer sides that face away from each other, an electrical component positioned on the outer side of the first flash circuit board, conductive connections connecting the electrical component to the first flash circuit board and having respective portions exposed on the inner side of the first flash circuit board, and a plurality of spacers holding the first and second flash circuit boards spaced from one another to maintain a narrow gap between the inner sides of the flash circuit boards that is narrow enough to discourage access to the portions of the conductive connections exposed on the inner side of the first flash circuit board, whereby it is difficult to reach the portions of the conductive connection in an attempt to short-circuit the electrical component.

Abstract: A camera flash unit for illumination of an associated target surface comprises a linearly symmetric flash light source providing light defined as light rays, a reflector directing the light rays from the flash light source towards the associated target surface and a refractive/TIR (Totally Internally Reflective) condenser lens element. The reflector is located adjacent to one side of the flash light source. The refractive/TIR condenser lens element has optical power in two orthogonal directions and is located adjacent to another side of the flash light source. The refractive/TIR condenser lens element has two surfaces--a back surface facing the light source and a front surface. One of the two surfaces is a hybrid refractive/TIR surface, the other of the two surfaces is a refractive surface.

Abstract: A camera flash comprises a flash light source providing light, a and a condenser lens element. The reflector is located adjacent to one side of the flash light source and has a trough with a reflective surface oriented towards the flash light source. The reflective surface partially encloses the flash light source and extends no more than 2 millimeters beyond the flash light source towards the target surface.

Abstract: An integral, autostereoscopic three-dimensional image suitable for lenticular display is generated from a plurality of image perspectives by interpolating additional images from hypothetical perspectives, as follows. Initially, actual image signals are generated from a plurality of actual images obtained from a plurality of actual image perspectives. The additional images are obtained by operating upon the actual image signals and forming interpolated image signals from hypothetical image perspectives. Finally, an integral three-dimensional image is generated from the combination of images obtained from the actual image perspectives and the hypothetical image perspectives, and is suitably displayed. According to one suitable display, the integral image may be exposed upon a photosensitive sheet that is attached to a lenticular faceplate for subsequent viewing.