Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8482652 | Imaging devices with components for reflecting optical data and associated methods of use and manufacture | Douglas Kreysar, Ronald F. Rykowski | 2013-07-09 |
| 7907154 | Method and apparatus for on-site calibration of visual displays | Ronald F. Rykowski | 2011-03-15 |
| 7697060 | Rotary shutter assemblies for imaging photometers and methods for using such shutter assemblies | Douglas Kreysar, Matthew Lekson, Ronald F. Rykowski | 2010-04-13 |
| 6137928 | Optical fiber light distribution system and method of manufacture and illumination | — | 2000-10-24 |
| 6095668 | Incandescent visual display system having a shaped reflector | Ronald F. Rykowski | 2000-08-01 |
| 5934795 | Lens design for outdoor sign | Ronald F. Rykowski | 1999-08-10 |
| 5832151 | Reflector and illumination system | Andrew P. Riser, David H. Liu, Nguyen To | 1998-11-03 |
| 5801889 | Technique to eliminate scattered light in diffractive optical elements | Mark Marshall Meyers | 1998-09-01 |
| 5682448 | Reflector and illumination system | Andrew P. Riser | 1997-10-28 |
| 5666564 | Zoom flash with wave-lens | — | 1997-09-09 |
| 5666577 | System for switching pointing indices in laser aimed cameras | Dale F. McIntyre | 1997-09-09 |
| 5615394 | Anamorphic lens for a photographic flash assembly | — | 1997-03-25 |
| 5555069 | Camera with electrochromic filter | David R. Dowe | 1996-09-10 |
| 5534961 | Belt drive shutter device | David R. Dowe | 1996-07-09 |
| 5210565 | Oscillating pupil autofocus method and apparatus | — | 1993-05-11 |
| 5148195 | Lens system having predetermined focusing power in different mediums, such as air and water, for providing a close up lens which may be attached to a camera either in air or underwater | — | 1992-09-15 |
| 5126772 | Pressure-compensation shutter release device for underwater camera | — | 1992-06-30 |
| 5062599 | Sheet separating mechanism and apparatus for use therein | Jon Kriegel | 1991-11-05 |