Kaleidoscope assembly
US4494820A · kind A · utility
11Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Jan 28, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved kaleidoscope assembly having a small actuating member external of the housing to rotate the image producing head disposed within the housing and having improved image producing reflecting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.