Holografski višenamjenski disk
1. Zeleni laser (532 nm)
2. Crveni laser (650 nm)
3. Hologram
4. Polikarbonatni sloj
5. Fotopolimerički sloj (podatkovni sloj)
6. Slojevi za razdvajanje
7. Ogledalca (reflektiraju zeleno svjetlo)
8. Alumijski reflektivni sloj (reflektira crveno svjetlo)
9. Prozirna podloga
P. PIT
Holografski višenamjenski disk[1] (Holodisk ili HVD) je napredna optička disk tehnologija koja je u fazi istraživanja i koja će povećati mogućnost smještaja raznovrsnih podataka, bolje i od Blu-ray i HD DVD optičkih disk sistema. Koristi se tehnika zvana kolinearna holografija.
Tehnologija
[uredi | uredi izvor]Trenutna tehnologija optičke pohrane podataka snima 1 bit po pulsu, a HVD alijansa se nada da unaprijedi efikasnost sa mogućnošću od oko 60.000 bita po pulsu. Visoka gustoća je moguća približavanjem tragova kod snimanja: 100 GB kod odvajanja od 18 mikrometara, 200 GB kod odvajanja od 13 mikrom, 500GB kod odvajanja od 8 mikrometara i prikazani maksimum smještaja 6 TB za širinu traga od 3 mikrometra na disku od 12 cm.
Sistem koristi laser zelene svjetlosti sa izlaznom snagom od 1 wata, velikom snagom za laser običnog korisnika.
Članice HVD foruma (bivša HVD Alijansa)
[uredi | uredi izvor]HVD Alijansa je koalicija korporacija sa željom da osiguraju industrijski forum za ispitivanje i tehničku raspravu svih aspekata HVD dizajna i proizvodnje.
Članovi Alijanse se nadaju da će saradnjom ubrzati razvoj i stvoriti tržište koje će prihvatiti o HVD tehnologiju. Od augusta 2009. HVD forum sačinjavaju slijedeće korporacije:
- Hoplon Infotainment
- Alps Electric Corporation, Ltd.
- CMC Magnetics Corporation
- Hitachi
- Mitsubishi
- Apple Inc.
- Dainippon Ink and Chemicals, Inc. (DIC)
- EMTEC International (subsidiary of the MPO Group)
- Fuji Photo Film Company, Ltd.
- Konica Minolta Holdings, Inc.
- LiteOn Technology Corporation
- Moser Baer, (India)
- Mitsubishi Kagaku Media Company, Ltd. (MKM)
- Nippon Kayaku Co., Ltd.
- Nippon Paint Company, Ltd.
- Optware Corporation
- Pulstec Industrial Company, Ltd.
- Shibaura Mechatronics Corporation
- Software Architects, Inc. (?)
- Suruga Seiki Company, Ltd.
- Targray Technology International, Inc.
- Teijin Chemicals, Ltd.
- Toagosei Company, Ltd.
- Tokiwa Optical Corporation
- Alps Electric Corporation, Ltd.
- CMC Magnetics Corporation
- Dainippon Ink and Chemicals, Inc. (DIC)
- EMTEC International (subsidiary of the MPO Group)
- Fuji Photo Film Company, Ltd.
- Konica Minolta Holdings, Inc.
- LiteOn Technology Corporation
- Mitsubishi Kagaku Media Company, Ltd. (MKM)
- Nippon Kayaku Co., Ltd.
- Nippon Paint Company, Ltd.
- Optware Corporation
- Pulstec Industrial Company, Ltd.
- Shibaura Mechatronics Corporation
- Software Architects, Inc. (?)
- Suruga Seiki Company, Ltd.
- Targray Technology International, Inc.
- Teijin Chemicals, Ltd.
- Toagosei Company, Ltd.
- Tokiwa Optical Corporation
Predloženi standardi
[uredi | uredi izvor]Ecma, zajedno sa komitetom TC44, će raditi na standardima za 200-Gb holografske višenamjenske disk (HVD) kertridže, 100-Gb HVD read-only diskove, 30-Gb HVD kartice i HVD-ROM-ove, po samostalnom izboru kompanija.
Također pogledajte
[uredi | uredi izvor]Reference
[uredi | uredi izvor]- ↑ Choudhary, Shilpa. https://www.wipo.int/edocs/plrdocs/en/holographic_versatile_disc.pdf (PDF). Vanjski link u parametru
|title=(pomoć)
Vanjski linkovi
[uredi | uredi izvor]- http://electronics.howstuffworks.com/hvd.htm/printable
- コリニア方式ホログラフィーの原理と応用展開 aka Collinear Holography/Principle and Applications The Original Japanese Essay which get the technical details of (HVD) explained.
- DaTARIUS signs agreement with InPhase Technologies to be their sole sales, service and support supplier of Tapestry Media hardware and media to ship starting in 2007 (300 GB WORM discs) with 600 GB discs and re-writable technology in 2008 as well as 1.6 TB media available in 2010.
- Optware, Company that owned the creation of HVD format.
- InPhase, a now bankrupt, company that developed a competing holographic storage format.
- Video explaining holographic storage Arhivirano 1. 12. 2008. na Wayback Machine – PC Magazine, October 4, 2006
- Holography system rides single beam EE Times, February 27, 2006 – interview with Hideyoshi Horimai and Yoshio Aoki of Optware Corp.
- Holographic storage standards eyed EE Times, February 28, 2006 – article about the upcoming technical committee meeting to begin standardization of HVD.
- How stuff works explains how HVD works.
- Elusive Green Laser Is Missing Ingredient Wall Street Journal February 13, 2008
- General Electric unveils 500GB optical disc storage
