Title:
ホログラフィックロムシステム
Document Type and Number:
Japanese Patent JP4527441
Kind Code:
B2
Abstract:
A holographic ROM system of the present invention includes a lens unit for filtering and collimating an output radiation diffracted from a holographic disk in order to produce an output data beam. The lens unit (400) includes an objective lens for collimating the output radiation and a filtering film for filtering the output radiation. The objective lens and the filtering film are formed in a single body.
Inventors:
Park Pil Lab
Application Number:
JP2004144878A
Publication Date:
August 18, 2010
Filing Date:
May 14, 2004
Export Citation:
Assignee:
Daewoo Electronics Corporation
International Classes:
G02B5/32; G11B7/135; G06K19/06; G11B7/0065; G11B7/1374; G11B7/1376; G11B7/1381
Domestic Patent References:
| JP11219540A | ||||
| JP2000293885A | ||||
| JP268737A | ||||
| JP2208835A |
Foreign References:
| US20020015376 |
Attorney, Agent or Firm:
Yoichi Oshima