Abstract: A laser printer and an illumination system for the laser printer records onto light sensitive medial. The laser printer and illumination system includes laser diode arrays, array illumination optics and cross-array illumination optics. The cross-array illumination optics combine light beams from the laser diode arrays so as to illuminate a spatial light modulator and confine incident light within a cross-array width of the modulator.

Abstract: A multi-beam laser printer for printing on light-sensitive thermal media where a monolithic array of independently modulated diode lasers is used to reduce the size of the printer. A closely spaced array of printing spots is produced from the separate diode lasers using two lenslet arrays having power in the array direction. To correct for non-straightness of the laser array, an optical arrangement is used to conjugate the far field of the lasers in a direction perpendicular to the array direction of the printing plane so that the laser array produces a straight line of printing spots on the light-sensitive medium.

Abstract: An optical system comprising two plastic elements is suitable for use in very low cost, wideangle cameras having curved image surfaces. This system has low distortion across a curved field angle of 65 degrees or more.

Abstract: An optical system comprising two elements suitable for use in photographic devices having cylindrical image surfaces. This system has low distortion and is particularly well suited for use in cameras which create large aspect ratio images, with the larger dimension of the image area being curved in conforming with the cylindrical image plane.