Abstract: An optical display system is disclosed having a preferred application in a helmet mounted heads-up display. The display system includes an image source (42-46) for generating an image which includes a plurality o fields sequentially displayed by the image source to form the image with a two-dimensional array of pixels forming each field and the fields having a spatially modulated light intensity. An image display (50) is coupled to the image source for displaying the fields. The image display produces for each field a two-dimensional display having a fixed number of light emitting points (65) which are disposed along each dimension of the two-dimensional array with each light emitting point being spaced apart from adjacent light emitting points by a fixed distance.

Abstract: The invention is an improved apparatus for recording an image onto a light recording medium by sequentially recording a plurality of sections onto the light recording medium which constitute the image and further an apparatus for reading previously recorded information disposed on a recording medium (162). The invention utilizes a light position sensor (201) having a target area having a plurality of apertures (604) including at least one line segment coupled to light emitted from a plurality of positions within the light emitting area (120) of the light source (120) used for recording for detecting the position of the light intersecting the target area (201) of the sensor from the light emitting area of the light source and generating at least one signal dependent upon the light intersecting the target area.

Abstract: The present invention relates to a method and apparatus for reducing the effect of recording errors on images and information which are recorded in sections onto a recording medium. Recording errors can detract from the quality of a recording particularly at the boundaries of recorded sections. The present invention introduces a number of methods which reduce the effect of recording errors by distributing the errors smoothly over areas of the recording, by modifying the recording level near the section boundaries, by modifying the recording process near the section boundaries, by modifying the shape, size and orientation of the recorded sections, by varying the position of the transition point from one section to an adjacent section and by introducing an overlap region which allows the section boundary to be modified.

Abstract: An apparatus for recording an image onto a light recording medium (16) by sequentially recording a plurality of sections onto the light recording medium includes a light source (120) which emits light at a position which is movable over a light emitting area (21) of the light source controlled by a controller (13), the position of the light being subject to deviation from a desired position of the light emitting area of the light source which corresponds to a position to be recorded on the recording medium which has recording position coordinates; a translator (702) having controllable positions for moving the recording medium relative to a light source during the recording of the plurality of sections of the image; a light transmitting mechanism (14, 15) disposed between the light source and the recording medium for transmitting the light from the light source to the recording medium; a light position sensor (142) having a target area optically coupled to light emitted from a plurality of positions within th