Method and apparatus for positioning subjects using a holographic optical element
US6299306A · kind A · utility
28Cited by
7References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method of positioning an eye of a subject at a selected point in space uses a holographic optical element containing indicia. The indicia are selectively visible to a user when the user is outside a volume surrounding the selected point and direct the user toward the volume. This system can be used with a camera to take an image of the eye from which the subject can be identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.