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| Number | Title | Issue Date |
| 7350915 | Lens having at least one lens centration mark and methods of making and using same A lens having at least one lens centration mark formed on a major surface of the lens is disclosed. The lens centration mark may be located at the intersection of a first axis and the major surface, where the major surface is symmetrical about the first axis such th... | 04/01/2008 |
| 7159986 | Wide field collimator A collimator is compact and uses power efficient light emitting diodes as the illumination source to generate a test image in collimated space. The collimator provides a test image across a wide field of view, which is useful for calibration of optical devices that ... | 01/09/2007 |
| 7068379 | Compact optical contour digitizer An optical contour digitizer including a radiation source for emitting radiation therefrom, a first mirror for folding the radiation emitted from the radiation source towards an object being measured, a second mirror for folding a reflection of the radiation from th... | 06/27/2006 |
| 6951392 | Lens having at least one lens centration mark and methods of making and using same A lens having at least one lens centration mark formed on a major surface of the lens is disclosed. The lens centration mark may be located at the intersection of a first axis and the major surface, where the major surface is symmetrical about the first axis such th... | 10/04/2005 |
| 6530662 | System and method for enhancing the realism of a displayed image A system and method for enhancing the realism of a displayed image may include an image display subsystem and a shadow projector. When an image is displayed, a shadow is projected near the image so that the shadow appears to be cast by the image. Shadows ... | 03/11/2003 |
| 6301027 | Holographic desktop monitor A projection monitor and a method of displaying an output image on a viewing screen of the monitor utilize a number of reconfigurable holographic optical elements (HOEs), allowing the components of the monitor to be physically arranged in a compact config... | 10/09/2001 |
| 6206524 | Lensless transparency shadowgraph A low cost and yet versatile shadowgraph is described. The shadowgraph has two components, a transparency holder and a point light source with its mounting and energizing structure. The transparency holder is itself transparent and acts as a backing for a... | 03/27/2001 |
| 6040928 | Holographic desktop monitor A projection monitor and a method of displaying an output image on a viewing screen of the monitor utilize a number of reconfigurable holographic optical elements (HOEs), allowing the components of the monitor to be physically arranged in a compact config... | 03/21/2000 |
| 5993009 | Multiple magnification contour projector Several different magnification lenses are adjustably mounted in a contour projector housing for movement selectively and one by one into operative registry with an entrance lens that faces a workpiece that is to be inspected. Spaced illuminators in the h... | 11/30/1999 |
| 5402193 | Method and means for projecting images in a contour projector A workpiece is mounted in a contour projector machine so that at least one of two opposed sides thereof can be observed by the operator. The side observed by the operator is illuminated by a surface illuminator, and an image thereof is projected onto the ... | 03/28/1995 |
| 5402192 | Simplified mirror system for contour projector The contour image of a workpiece is projected by a conventional lens system onto a first mirror lying in a plane inclined at other than 90° to the optical axis of the lens system. This image is reflected directly (i.e., without the use of any relay lense... | 03/28/1995 |
| 4443076 | Projecting apparatus A projecting apparatus wherein a work on a mount is illuminated by an illuminating device and an image of the shape of the work obtained through a light transmitted therethrough or reflected therefrom is formed on a screen by means of a magnifying-project... | 04/17/1984 |
| 4223986 | Surface illuminator The light source comprises an elongate arc lamp surrounded by a paraboloidal reflector which, in one embodiment, projects an annular beam of light onto an annular reflector, or mirror, which in turn projects the light onto a workpiece. Reflected light fro... | 09/23/1980 |
| 3988059 | Projector A wide angle projector is disclosed for projecting an image having an illuminated and unilluminated region on either side of a straight boundary region which defines a datum plane established by the orientation of the projector. The image is detected at a... | 10/26/1976 |
