Opthalmic apparatus having lowered consumption of electric power
US5563667A · kind A · utility
7Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic apparatus for measuring an eye of an examinee, includes a device for detecting whether the eye is located within a predetermined area with respect to the apparatus, an interval time producing device for producing a prescribed interval time, a power supply device for supplying power intermittently to the detecting device in accordance with signals for the interval time producing device, and power supply signal generating device for generating a signal to supply a power required by the ophthalmic apparatus when the detecting device judges that the eye exists within the predetermined area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.