Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ryoichi Imanaka"'
Publikováno v:
Applied optics. 26(9)
An ultrahigh accuracy 3-D profilometer using a laser heterodyne interferometer has been developed. The profiles of aspheric lenses and their molds have been measured. It can measure not only the rectangular coordinates but also the polar coordinates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23acbb0efcdc0231b78b401ce94b6f7b
https://pubmed.ncbi.nlm.nih.gov/20454383
https://pubmed.ncbi.nlm.nih.gov/20454383
Publikováno v:
SPIE Proceedings.
Advanced phase-change optical disk technology has become matured products level. Reflectivity change recording function and the overwrite function of this technology has good affinity of the contents media as CD-ROM and interactive performance on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46daa363805e471f82ff9f367b7fbff1
https://doi.org/10.1117/12.248697
https://doi.org/10.1117/12.248697
Publikováno v:
SPIE Proceedings.
Phase-change optical disks where the cooling rate has been reduced by design show about double the sensitivity of conventional disks and are capable of more than 500,000 overwrites. The disk layer materials are the same as for conventional phase-chan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::422a16b14ccd647419b8895bf6fbc093
https://doi.org/10.1117/12.218723
https://doi.org/10.1117/12.218723
Publikováno v:
Japanese Journal of Applied Physics. 35:490
The use of CD-ROM has become widespread. PC users have generally been satisfied with the performance CD-ROM's, however, there is also a demand for larger-capacity removable rewritable media for “Multimedia” applications. The “PD” system offer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0aaeac2ebdd1229c1fb456b55059db67
https://doi.org/10.1143/jjap.35.490
https://doi.org/10.1143/jjap.35.490
Autor:
Takashi Ishida, Motoshi Ito, Yukinori Okazaki, Yuji Takagi, Isao Satoh, Ryoichi Imanaka, Shunji Ohara, Makoto Ichinose
Publikováno v:
Japanese Journal of Applied Physics. 32:5320
High-density recording characteristics of phase-change optical disks were studied using 2-7 pulse-position-modulation (ppm) in-groove recording. Carrier-to-noise-ratio (CNR) was over 50 dB at a mark length of 0.60 µm and the crosstalk at the track p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16c39a1041771d93f7734b102e548b78
https://doi.org/10.1143/jjap.32.5320
https://doi.org/10.1143/jjap.32.5320
Publikováno v:
The Journal of the Institute of Television Engineers of Japan. 37:482-490
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba90fd39cf3832dd152d4502e8bb5313
https://doi.org/10.3169/itej1978.37.482
https://doi.org/10.3169/itej1978.37.482
Autor:
Ryoichi Imanaka, Keiichi Yoshizumi, Masatsugu Tanji, T. Yoshimatsu, Yoshihiro Okino, Tetsuo Saimi, K. Kamio
Publikováno v:
IEEE Transactions on Consumer Electronics. :135-140
It has now been several years since the first laser video disc system made its debut on the market and the years since then have seen the development of many new applications utilizing various features of the system. The most outstanding features of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd0895f99ca6114ef2f1a34f41a67ccd
https://doi.org/10.1109/tce.1983.356296
https://doi.org/10.1109/tce.1983.356296
Publikováno v:
SPIE Proceedings.
The video and the audio disc systems have been realized and the progress of optical disc memory systems allows the new products such as the video file system and the document file system. The optical disc memory system has a number of advantages comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1614ee1676005836801fc1f65712aec
https://doi.org/10.1117/12.936101
https://doi.org/10.1117/12.936101
Publikováno v:
Topical Meeting on Optical Data Storage.
To apply the optical disk to data memory systems, faster random access is an essential requirement. We have developed a fast access actuator, the structure of which is fundamentally different from that of the conventional actuator. The optical head c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de21b2e4b74aaec04665dfeaed40e5ae
https://doi.org/10.1364/ods.1985.thaa5
https://doi.org/10.1364/ods.1985.thaa5
Reproducing‐only and recordable‐reproduceable optical discs and common optical disc player therefore
Publikováno v:
The Journal of the Acoustical Society of America. 85:1399-1399
The combination of recordable-reproduceable optical discs and reproducing-only optical discs and an optical disc player which is capable of reproducing recorded signals both from the recordable-reproduceable optical disc possessing pregrooves and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b1f32ad6bde5297e9a7fdcf17de7c3e
https://doi.org/10.1121/1.397340
https://doi.org/10.1121/1.397340