Abstract: An optical imager includes: an image sensor for capturing images of targets and outputting image signals; a lens for focusing the target on the image sensor as a function of lens position; a memory for storing predetermined lens positions determined from predetermined target sizes; and a controller for determining current target size based on captured images and positioning the lens at a predetermined lens position by correlating current target size with predetermined target sizes.

Abstract: An optical imager includes: an image sensor for capturing images of targets and outputting image signals; a lens for focusing the target on the image sensor as a function of lens position; a memory for storing predetermined lens positions determined from predetermined target sizes; and a controller for determining current target size based on captured images and positioning the lens at a predetermined lens position by correlating current target size with predetermined target sizes.

Abstract: An optical imager includes: an image sensor for capturing images of targets and outputting image signals; a lens for focusing the target on the image sensor as a function of lens position; a memory for storing predetermined lens positions determined from predetermined target sizes; and a controller for determining current target size based on captured images and positioning the lens at a predetermined lens position by correlating current target size with predetermined target sizes.

Abstract: An optical imager includes: an image sensor for capturing images of targets and outputting image signals; a lens for focusing the target on the image sensor as a function of lens position; a memory for storing predetermined lens positions determined from predetermined target sizes; and a controller for determining current target size based on captured images and positioning the lens at a predetermined lens position by correlating current target size with predetermined target sizes.

Abstract: There is also provided a terminal for use in associating an annotation with an image. The terminal can comprise a processor, one or more computer readable storage mediums, an imaging assembly, first program instructions to obtain an annotation from a source in response to the terminal capturing an image, second program instructions to create an image header defined by a standard, and third program instructions to store the image header, the image, and the annotation in a data structure on the computer readable storage medium. The first, second, and third program instructions can be stored on the one or more computer readable storage mediums for execution by the processor. There is also provided a computer program product and a computer system for rendering a data structure comprising an annotation and an image on a display.