We report on a conceptual design and feasibility demonstration for a scanned beam endoscope, with advantages over present CCD imaging technology in image resolution and quality, light source power, and package diameter. Theoretical calculations were made by optical modeling and finite element analysis of the performance projected for a design meeting size constraints. To verify the design target of 5 mm for the endoscope diameter, we conducted a design study of the deformation and resolution characteristics of a scan mirror small enough to fit within a 2.5 mm capsule within the endoscope. The results show that performance similar to the test system can be achieved. A functional prototype was then built and tested to validate the theory used. The test system consisted of a photonics module with red (635 nm), green (532 nm) and blue (473 nm) lasers, combined by dichroic mirrors and launched to a single mode fiber. The light emerging from the fiber is formed into a beam and reflected from a commercially available bi-axial MEMS scanner with a 1.56 mm square mirror, and a scan angle of 6 degrees zero to peak mechanical, at a frequency of 19.7 kHz. Scanned beam power from 1 to 3 mw impinges the test object at a range from 10 to 100 mm, and the scattered light is collected by several 3 mm diameter multimode fibers and conducted one-meter to detectors. The detected light was digitized and then reconstructed to form an image of the test object, with 800 by 600 output pixels. Several such images will be presented.

Retinal Scanning Display (RSD) technology is a comparatively new technology. What RSD technology is and how it differs from other display technologies is discussed below. This paper also discusses how to measure contrast of a RSD in a manner that allows comparison of contrast to other types of displays. At first sight, it seems to be a straightforward task involving a simple measurement. However the choice of contrast test procedure and equipment setup determines this number. A contrast ratio test is suggested as a method that allows for fair comparisons between different types of displays.

Gamma correction in high‐image‐quality displays improves the appearance of imagery and is based on an assumed mathematical relationship between luminance and brightness. As the market for new HD technology expands, it is a good time to examine the correct brightness–luminance relatioship for high‐definition displays. The DICOM standard represents a possible way of doing this.

Gamma correction is required for a display to have linear gray scale. The standard gamma correction should be replaced by the DICOM gray scale function for a correction that extends over a larger dynamic range The DICOM correction is consistent with a Modified Steven's law.

Multi-touch technology, first deployed in the Apple iPhone device, began a revolution on how to interface with mobile devices and, with the release of Windows 7, it has caused an explosion in interest by display manufacturers. Uni-Pixel Displays will present the industry with state of the art in fingerprint-resistant technology.