Sensor magnifying glass apparatus
US4693554A · kind A · utility
7Cited by
13References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved sensor magnifying glass apparatus having a magnifying glass element (1) held in a holder element (4) and comprising a cylindrical portion (2) with a superposed convex curved lens portion (3) that is rotationally symmetrical with the cylinder axis (19). A plotter coil (11) is secured to the cylindrical portion (2) in the region between that portion's circumferential face and the course of a peripheral light ray (20') through the cylindrical portion (2) that enters the lens portion (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.