Hvd(Holographic Versatile Disc)
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ppt presented by my batchmate Nikesh bharti. its an ongoing project which will store more than 1000 DVDs . just have a look
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Hvd(Holographic Versatile Disc)
- 1. HOLOGRAPHIC VERSATILE DISC
- 11. 1. Green writing/reading laser (532 nm) 2. Red positioning/addressing laser (650 nm) 3. Hologram (data) 4. Polycarbon layer 5. Photopolymeric layer (data-containing layer) 6. Distance layers 7. Dichroic layer (reflecting green light) 8. Aluminium reflective layer (reflecting red light) 9. Transparent base P. PIT
- 12. Parameters DVD BLU-RAY HVD capacity 4.7 GB 25 GB 3.9 TB Laser wave length 650 nm (red) 405 nm (blue) 532 nm (green) Disc diameter 120 mm 120 mm 120 mm Hard coating no yes yes Data transfer rate (raw data) 11.08 mbps 36 mbps 1 gbps Data transfer rate (audio/video) 10.08 mbps 54 mbps 1 gbps