Method of producing holographic optical element and device therefor
US5781317A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of producing a holographic optical element which is capable of imparting complex corrections to the holographic optical element and of effecting the exposure using a short optical path permitting little disturbance to be infiltrated. A correction holographic optical element 13 for correcting the characteristics of the holographic optical element is disposed in at least one of the optical paths of an object beam 35 and a reference beam 36 that fall on a photosensitive material 11. The object beam 35 may be one obtained by reflecting the reference beam 36 by a reflection-type holographic optical element such as a reflection-type master holographic optical element 12. In the case of a holographic optical element used for the head-up display, the correction holographic optical element 13 may be given characteristics for correcting the curvature of the windshield or characteristics for correcting color aberration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.