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Ken Olsen, chairman and founder of Digital Equipment Corporation ; 1977
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| Number | Title | Issue Date |
| 4264208 | Method and apparatus for measuring the surface of an object An optical system focuses a laser beam emanating from a laser onto a surface of an object, such as a circumferential surface of the object to be measured. The light beam is reflected from the object, so as to form a generally focused light spot; the inten... | 04/28/1981 |
| 4209252 | Optical probe assembly for detecting the position of an object surface and method An optical probe assembly for detecting the position of an object surface, especially the position of a three-dimensional, curved surface such as a surface in a contact lens or the cornea of the eye, is disclosed herein. This assembly and its method of op... | 06/24/1980 |
| 4115005 | Method for optically measuring a roughness profile of surface A method for measuring a roughness profile of a surface optically is provided. The method essentially comprises projecting through a converging optical system a pair of light rays on a surface to be measured, the light rays being focused slightly before a... | 09/19/1978 |
| 4088408 | Device for measuring the contour of a surface The invention is a device for measuring the contour of a surface. Light from a source is imaged by a lens onto the surface which concentrates the energy from the source into a spot. A scanning means is used to scan the spot across the surface. As the surf... | 05/09/1978 |
| 4017188 | Surface profile measuring device and method An arrangement for measuring the profile of surfaces having a characteristic one-directional lay with sufficient resolution to determine the surface roughness thereof is disclosed, comprising a device for illuminating a small spot on the surface, with an ... | 04/12/1977 |
