Apparatus for recording and reproducing hologram
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 8, 2015
Grant Date -
Mar 6, 2014
app pub date -
Mar 15, 2013
filing date -
Oct 5, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hologram recording and reproducing apparatus including: a coherent light source; a beam splitter which splits a beam emitted from the coherent light source into a signal beam and a reference beam; a signal beam forming unit which modulates the signal beam split and directs the modulated signal beam onto a hologram recording medium; and a reference beam forming unit which directs the reference beam to be irradiated onto a location on the hologram recording medium which overlaps with a location on the hologram recording medium on which the signal beam is incident, wherein the signal beam forming unit includes: a first light guide member which transmits the signal beam split by the beam splitter; a spatial light modulator (SLM) which modulates the signal beam transmitted through the first light guide member; and a holographic Fourier transformation optical device which focuses the modulated signal beam onto the hologram recording medium.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- G03H Class
- 161 Applications Filed
- 143 Patents Issued To-Date
- 88.82 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G03H Class
- 12.71 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 8, 2027 |
