FIELD: medicine technique. SUBSTANCE: device has optical emitter 1, and photodetector 3 spaced for a base of distance metering. Optical axes of those are intersected. Cylindrical lense 2 is installed in front of photodetector 3. Axis of cylindrical surface of lense 2 is perpendicular to the plane of distance metering. Interfaces of areas of photodetector 3 are symmetric about its optical axis and are perpendicular to the plane of distance metering. Unit of signal transformation 4 is provided with normalizing- difference circuit outputs of which are connected to inputs of areas of the photodetector. EFFECT: high efficiency. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PERMUTATION LOCK | 0 |
|
SU1100404A1 |
| CODE MECHANICAL LOCK | 2000 |
|
RU2172381C1 |
| DOOR RIM LOCK | 0 |
|
SU1693222A1 |
| RIM CODED LOCK | 2004 |
|
RU2268979C1 |
| CODE LATCH | 2002 |
|
RU2219321C1 |
| CODE PADLOCK | 2002 |
|
RU2219322C1 |
| COMBINATION LOCK FOR DOORS | 1992 |
|
RU2026946C1 |
| CODED LOCK | 1993 |
|
RU2074941C1 |
| LOCK | 2012 |
|
RU2511516C1 |
| METHOD TO LOCK AND UNLOCK LOCK AND LOCK FOR ITS REALISATION (VERSIONS) | 2012 |
|
RU2493344C1 |
