Monday, December 05, 2016
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Apple Sent Letter NHTSA Asking About Autonomous Vehicle Guidelines
Apple Blames Battery For Random iPhone 6s Shutdowns
Microsoft Stores Reveal Xbox Discounts And Offers
Researcher Bypasses The iOS Activation Lock
Facebook To Offer $20 million To Improve Silicon Valley Communities
Xiaomi Launches Voice -controller Mi Wi-Fi Speaker
Xiaomi "Denies" Mi MIX Nano Existence
Nokia D1C Specs Leak
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > Optical Storage > Ricoh's...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, July 11, 2006
Ricoh's Optical Device Read Both HD DVD and Blu-Ray Discs


Ricoh has reportedly developed an optical component that reads and writes all disk formats?Blu-ray Disc and HD-DVD, as well as DVD and CD?with one pickup and one objective lens.

Ricoh will show the optical device at the International Optoelectronics Exhibition '06 outside Tokyo on July 12-14. The company intends to offer the device to OEMs by year's end.

The component is a 3.5-mm diameter, 1-mm thick round diffraction plate with minute concentric groves on both sides which function as a diffraction grating.

In various optical disk formats, the data layer is positioned at different distances from the surface of the disk, a factor that contributes to the difficulty of supporting multiple formats in a single drive. The data layer of the Blu-ray Disc resides 0.1 mm from the disk's surface, while the HD-DVD data layer is 0.6-mm deep from the disk's surface, the same as DVD disks. CDs have a data layer depth of 1.1 mm from the disk surface. For this reason, Ricoh, placed the diffraction plate between lasers and an objective lens. The diffraction grating is designed to adjust a light beam to an optimum incident ray relative to the objective lens so that light focuses on the proper position for each disk format.

Multiformat players and recorders can identify which format disk is loaded. Based on the disc information, Ricoh's optical diffraction component adjusts the laser beam with its diffraction grating for each format and passes it to the objective lens. The lens then forms a beam spot at the appropriate depth for each disk format.

Although the diffraction device works for both reading and writing modes, Ricoh will initially offer the device for disk players only. Because some laser beam energy is lost at the grating, using the diffraction device for recording will require a blue laser with higher power than those used in conventional recorders.


Previous
Next
OCZ Technology Announces New Tempest CPU Cooler        All News        Nikon Releases Capture NX Image Editor
Multiple Screenshots Break First "Blue" Video Releases     Optical Storage News      DaTARIUS Drives Testing in Holographic Storage products

Source Link Get RSS feed Easy Print E-Mail this Message

Related News
PowerDVD Software Player Certified for Ultra HD Blu-ray Disc Playback
Demand For 4K TVs And Streaming Media Players Is Growing
Home Entertainment Spending Up Driven by Digital HD Sales and 4K Ultra HD Technology
RICOH THETA SC Model Added To Company's 360-degree THETA Camera Lineup
Sony Showcases 4K Ultra HD Blu-ray player, 4K Projector And New Audio-video Receivers At CEDIA
Panasonic DMP-UB900 Ultra HD Blu-ray Player Launches In Sepember For $699
Samsung 4K Blu-ray Player Gets UHD Alliance Certification
UHDA Launches ULTRA HD PREMIUM Logo and Certification Licensing for Ultra HD Blu-ray Disc Players
New RICOH WG-M2 Action Camera Supports 4K Video, Features 204-degree Lens
Ricoh Unveils The PENTAX K-1 35mm full-frame digital SLR Camera
Ricoh Releases Limited-edition GR II A Compact Camera
Warner Bros. To Release First Ultra HD Blu-ray Titles

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2016 - All rights reserved -
Privacy policy - Contact Us .