US Patent: 5,414,646
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| Digital Optical Micrometer
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Patentees:
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| David L. Sanders (exact or similar names) - Leavenworth, KS |
| Timothy J. Rolbiecki (exact or similar names) - Kansas City, MO |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 16, 1992 |
| Granted: |
May 09, 1995 |
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Joel Havens
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Description: |
| Stinson, Mag & Fizzell - patent attorneys
Abstract
A digital optical micrometer for mounting on an optical instrument and having an optical flat plano-parallel window which is connected to a micrometer drum. The drum can pivot or incline the optical plano-parallel window to cause displacement of a line of sight. The digital optical micrometer further has an LCD read-out that indicates the amount of displacement of the line of sight, a circuit that is connected to the optical plano-parallel window and provides an electrical signal having a signal property which varies in proportion to the inclination of the line of sight, and an analog-to-digital converter that is connected to the circuit and converts the electrical signal to a digital word having a binary value representative of the inclination of the line of sight. The optical micrometer further has a computer which has a clock input that provides for an automatic power down of the micrometer. The micrometer includes a linkage arrangement rotating the optical flat window which minimizes the error effect of gear backlash.
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