Resources Contact Us Home
Molded block optical system for volume holographic storage

Image Number 4 for United States Patent #5896210.

Molded block optics system (10) writes and reads data from an optical storage medium and includes first molded optics block (12) for receiving reference beam (60) and original object beam (46) that contains a predetermined data set. First molded optics block (12) includes reflective surfaces (18, 20, 22, and 24) and spatial light modulator (50). Reflective surfaces (18, 20, and 24) include reference beam surfaces (24) and object beam surfaces (18, 20, and 22). Reference beam surfaces (24) direct reference beam (60) to optical storage medium (16) at predetermined location (54). Spatial light modulator (50) modulates object beam (46) and directs modulated object beam (46) to predetermined location (54). Reference beam (60) and object beam (46) form an interference pattern that writes data on optical storage medium (16). First molded optics block (12) also directs reference beam (60) to optical storage medium (16) for generating reconstructed object beam (64). Second molded optics block (14) receives reconstructed object beam (64), and includes reflective surfaces that direct reconstructed object beam (64) to detector array (32).

  Recently Added Patents
Management of memory array with magnetic random access memory (MRAM)
Data storage apparatus, memory control apparatus and method for controlling flash memories
Structure of pixel electrode
Satellite mounting pole
Solar cell with hyperpolarizable absorber
Server-side connection resource pooling
  Randomly Featured Patents
In-situ BWR and PWR CRUD flake analysis method and tool
Cap for air compressor
Self-extinguishing polyester molding compositions
Inductive proximity sensor
Process for applying forces to glass sheets, in particular at a high temperature
CMOS pixel and imaging device supporting automatic light control (ALC) and correlated double sampling (CDS)
Intermediates for making 4-[(2-benzothiazolyl)methylamino]-.alpha.-[(3, 4-difluorophenoxy)methyl]-1-piperidineethanol
Polyethylene terephthalate molding compositions
Bios refresh device and method using the same
Preparation method of comb copolymer, acrylic comb copolymer, and impact resistant resin composition