Computer-controlled device for detecting optical transmission and/or remittance properties of a measuring object, method for operating such a device and method for initializing measuring functions of such a device
US5987396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1995 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Aug 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/5907
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computer-controlled device for detecting optical transmission and/or remittance properties of a measuring object has a measuring unit for illuminating the measuring object and for receiving the light transmitted by the measuring object and/or reflected from the measuring object. Furthermore, it has an input unit for selecting the type of measurement and the like, as well as a display unit for displaying the values measured. Moreover, it comprises a first non-volatile memory in which the measuring functions of the device are stored, as well as a control unit for controlling all procedures in the device. In a second non-volatile memory are stored release codes assigned to the individual measuring functions and, with the help of which, the control unit accesses the measuring functions in the first non-volatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.