Reticle and method of making the same
US4380876A · kind A · utility
23Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1980 |
| Grant date | Apr 26, 1983 |
| Priority date | — |
| Expiry date | Nov 7, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The reticle is composed of two adjacent parts, each of which comprises a circular periphery with one cross hair extending across the circular periphery. The cross hair on one part is disposed at a 90.degree. angle with respect to the cross hair on the other part to form the reticle aiming point. Each part is made by a chemical machining method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.