- Details
- Optical Storage
Due to ship to OEMs in December, Maxell's holographic storage technology is in beta tests with several broadcasters. With its first generation cartridges holding 300 GB of data, Maxell -- in conjunction with InPhase Technologies -- is developing 2nd and 3rd generation cartridges to hold 800 GB and 1.6 TB of data respectively...If you'd like to read more, Maxell's entire press release can be found here. Add a comment
...Maxell will also display its Blu-ray and HD DVD technology formats, both of which are designed to meet currently expanding digital video requirements for recording and viewing large amounts of data including high definition movies. Maxell's continual advanced developments with this technology will provide for high transfer rates and better rewritability, which will be needed for the video and storage requirements of the future.
- Details
- Optical Storage
- Details
- Optical Storage
Matsushita Electric Industrial Co., Ltd. has developed a 4-layer Blu-ray Disc (BD) medium using Te-O-Pd film for inorganic recording layers. Total capacity reaches 100 GB with each layer having 25 GB storage capacity. This is the company's first report of four-layer BD discs. By revising a Te-O-Pd composite proportion, the company reportedly achieved durability that allows data playback after 100 years.I wouldn't get too excited yet. TDK developed their 100GB disc back in 2005 and the technology still has not made it past the prototype stage. If you'd like to read more, the entire article can be found here. Add a comment
- Details
- Optical Storage
In the "Micro-Reflector recording" demonstrated by Sony, a laser light emitted from a blue violet semiconductor laser diode is split into two so that one of them irradiates the front side of a medium as a reference light while the other is emitted to the backside as a recording light. By precisely aligning focal points of the two lights with a servo technology, a minute interference fringe corresponding to a 1 bit recording mark is formed. When a laser light (reproduction light) is emitted on the front side of the medium having interference fringes, the recording light is reproduced. This light advances from the fringes to the medium front side as if the fringes reflect the reproduction light. This is why the system is called "Micro-Reflector recording".While this new recording system sounds promising, Sony still has a lot of work ahead of them. If you'd like to read more, the entire article can be found here. Add a comment
The medium comprises a 0.3 mm thick photopolymer sandwiched by 0.6 mm glass substrates. Since the depth of the interference fringes can be controlled by changing the depth of the focal points of the laser lights, multi-layer recording with 10-20 layers can be provided. The recorded interference fringes are small enough to prevent the photopolymer from expanding/contracting due to temperature change. This eliminates the need of adjusting the wavelength of the laser in accordance with the temperature. Therefore, a commercial blue violet semiconductor laser diode is expected to be used as is. Moreover, the setup can easily achieve a reduction in component cost because it requires no spatial light modulators, CMOS sensors or other parts.
- Details
- Optical Storage
Lite-On IT has landed an OEM order from Hewlett-Packard (HP) to produced its HD100 external HD DVD-ROM drive with shipments to begin soon, according to the Chinese-language Economic Daily News (EDN). Lite-On IT confirmed the report on October 18 but declined to release any further information.I can't say I'm too surprised by this. As one of the world's leading manufacturers of optical drives, Lite-On is best suited for this sort of thing. If you'd like to read more, head on over to DigiTimes. Add a comment
