Indicia recording device
US4093370A · kind A · utility
5Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1977 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Jun 13, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B27/521
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A compound optical system apparatus, having a main optical path with a reflector, a shutter, an objective lens, and an image-receiving surface; and an alternately activated folded auxiliary optical path, with quasi-collimative reflective elements, one closely peripherally disposed to the main optical path, for passing a relatively small auxiliary image through the objective lens and displaying it upon the image-receiving surface on the side of the main image that is opposite to the side where the one reflective element is positioned with respect to the objective lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.