Anomaloscope
US7628491B2 · kind B2 · utility
3Cited by
6References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An anomaloscope for measuring and monitoring color vision, whereby gross and subtle color vision changes due to a disease process may be readily monitored over time. The device has a series of bicolor or red/green light sources presented in pairs with amber/yellow light sources, for comparison with the red/green light sources. By varying the mix of red and green light, a progression is established. A test subject indicates a perceived match between a pair consisting of a red/green light and a yellow light, to indicate the tester's sensitivity to color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.