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| Number | Title | Issue Date |
| 6177954 | Miniature inspection system A miniature inspection system for observing an object. The system comprises a camera defining an optical axis defined between the camera and the object when located at an inspection location. A ring light is located concentrically with respect to and alon... | 01/23/2001 |
| 6135350 | Surface marking system and method of viewing marking indicia A surface marking system for providing a surface with a reflective marking for inspection by a vision system. The surface marking system comprises at least one corner cube cavity formed in the surface to be marked, the at least one corner cube cavity comp... | 10/24/2000 |
| 6059421 | Hockey puck shaped continuous diffuse illumination apparatus and method The method and apparatus for providing a continuous, uniformed, diffused light environment for use in conjunction with an electronic machine vision or manual microscope inspection system, particularly for inspection of specular surfaces such as ball beari... | 05/09/2000 |
| 6003992 | Back lighting illumination system A back light illumination system for providing substantially uniform illumination to a surface of an object to be observed so that the object may be accurately perceived by a machine vision system. The back light illumination system includes a light trans... | 12/21/1999 |
| 5949584 | Wafer An imaging system for viewing indicia on an object to be observed in which the indicia comprises a plurality of either hard and/or soft marks. The light supplied by a light source is collimated by at least one lens and supplied toward an object to be obse... | 09/07/1999 |
| 5920643 | Flexible lighting element circuit and method of manufacturing the same An apparatus and method for forming a conical or domed ring light having a plurality of light sources arranged at a desired angle with respect to an optical axis. Some of the dimensions of the illumination apparatus are first determined and, then using th... | 07/06/1999 |
| 5877899 | Imaging system and method for imaging indicia on wafer An imaging system for viewing indicia on an object to be observed in which the indicia comprises a plurality of either hard and/or soft marks. The light supplied by a light source is focussed by at least one lens and supplied toward an object to be observ... | 03/02/1999 |
| 5842060 | Illumination device with curved beam splitter for illumination an object with continuous diffuse light An illumination device for illuminating an object to be observed, by a machine vision camera or the like for example, with a continuous diffuse wide angle light which is supplied along the observation axis of the machine vision camera. The illumination de... | 11/24/1998 |
