English: Comparison of various characteristics of a Compact Disc, and single-layer Digital Versatile Disc, High-Definition/Density Digital Versatile Disc and Blu-ray Disc. Dimensions indicated are track pitch (p), pit width (w) and minimum length (l), and laser spot size (⌀) and wavelength (λ).
For comparison with analogue media, the pitch of the spiral of a 240-groove-per-inch long-playing record and a Laserdisc are 106 μm (66 times the CD track pitch) and 4.6 μm (2.9 times), respectively.[1] The tip of a 0.7-mil stylus has a diameter of 18 μm (11 times that of the CD laser spot).
Data is from [2], [3], [4] and [5]. The Airy disk profile is based on [6] with rings darkened by a factor of 5 for clarity.
Note that the wavelength is in vacuum or air; below the surface of the disc, the index of refraction of polycarbonate (n=1.585) means that the wavelength is only 63% of the listed values.
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Comparison of Compact Disc, Digital Versatile Disc, High-Definition/Density Digital Versatile Disc and Blu-ray Disc
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Comparison of various characteristics of a Compact Disc, and single-layer Digital Versatile Disc, High-Definition/Density Digital Versatile Disc and Blu-ray Disc, by CMG Lee. Dimensions indicated are track pitch (p), pit width (w) and minimum length (l), and laser spot size (⌀) and wavelength (λ). For comparison with analogue media, the pitch of the spiral of a 240-groove-per-inch long-playing record and a Laserdisc are 106 μm (66 times the CD track pitch) and 4.6 μm (2.9 times), respectively.[1] The tip of a 0.7-mil stylus has a diameter of 18 μm (11 times that of the CD laser spot). Data is from [2], [3], [4] and [5]. The Airy disk profile is based on [6] with rings darkened by a factor of 5 for clarity.
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กุมภาพันธ์ 16, 2023
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pitch p pit width w and minimum length l and laser spot size and wavelength l For comparison with analogue media the pitch of the spiral of a 240 groove per inch long playing record and a Laserdisc are 106 mm 66 times the CD track pitch and 4 6 mm 2 9 times respectively 1 The tip of a 0 7 mil stylus has a diameter of 18 mm 11 times that of the CD laser spot Data is from 2 3 4 and 5 The Airy disk profile is based on 6 with rings darkened by a factor of 5 for clarity Note that the wavelength is in vacuum or air below the surface of the disc the index of refraction of polycarbonate n 1 585 means that the wavelength is only 63 of the listed values aehlngthima ngankhxngtw phusrangsrrkh Cmglee SVG nbsp genesisInfoField nbsp sxrsokhdkhxng SVG nitrwcsxbthuktxngaelw nbsp iflphaphkrafiksewketxrni srangkhunodyich nbsp Other tools karxnuyatichsiththi khapheca inthanaphuthuxlikhsiththikhxngphaphhruxsuxni xnuyatihichphaphhruxsuxniphayitenguxnikhtxipniiflnixyuphayitsyyaxnuyat khriexthifkhxmmxns 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CmgleeReduce letter spacing 05 59 8 tulakhm 2555512 256 18 kiolibt Cmglee Information Description en 1 Comparison of various characteristics track pitch p pit width w minimum pit length l laser spot size and laser wavelength l of a Compact Disc Digital Versatile Disc High Definition Density Digit hnathimiphaphni hnatxipni oyngmathiphaphni bluery karichiflswnklang wikixuntxipniichiflni karichbn bg wikipedia org Kompaktdisk karichbn ca wikipedia org Disc optic karichbn en wikipedia org Compact disc Optical disc Talk Diffraction grating Comparison of high definition optical disc formats Talk DVD Blu ray HD DVD Optical storage media writing and reading speed User Cmglee drawing User Cmglee svg karichbn es wikipedia org Disco optico Guerra de formatos karichbn es wikibooks org Mantenimiento y Montaje de Equipos Informaticos Tema 3 Almacenamiento optico Mantenimiento y Montaje de Equipos Informaticos Tema 3 Texto completo Mantenimiento y Montaje de Equipos Informaticos Texto completo karichbn et wikipedia org CD ROM karichbn fr wikipedia org Disque Blu ray Portail Sony Selection d images Portail Sony Selection d images 9 karichbn fr wikibooks org Fonctionnement d un ordinateur Les disques optiques Fonctionnement d un ordinateur Version imprimable 2 karichbn id wikipedia org DVD karichbn it wikipedia org DVD Blu ray Disc CD Audio HD DVD Disco ottico CD ROM karichbn ja wikipedia org HD DVD 第3世代光ディスク karichbn lv wikipedia org Kompaktdisks karichbn nl wikibooks org Computersystemen Opslagmedia karichbn oc wikipedia org Blu ray karichbn pt wikipedia org Compact disc DVD karichbn ru wikipedia org Opticheskij disk karichbn sk wikipedia org Kompaktny disk karichbn te wikipedia org బ ల ర karichbn tr wikipedia org Blu ray karichbn zh wikipedia org DVDkhxmulekiywkbphaph phaphnimikhxmulephimetim sungswnihymacakklxngdicitxlhruxsaeknenxrthisamarthekbkhxmuldngklawiwrwmkbphaphid thaphaphnithukprbprungaekikhhruxepliynaeplngcakedim khxmulbangxyangcayngkhngimepliynaeplngehmuxnphaphthithukprbprungaekikhnnchuxeruxngsnComparison of Compact Disc Digital Versatile Disc High Definition Density Digital Versatile Disc and Blu ray DiscchuxphaphComparison of various characteristics of a Compact Disc and single layer Digital Versatile Disc High Definition Density Digital Versatile Disc and Blu ray Disc by CMG Lee Dimensions indicated are track pitch p pit width w and minimum length l and laser spot size and wavelength l For comparison with analogue media the pitch of the spiral of a 240 groove per inch long playing record and a Laserdisc are 106 mm 66 times the CD track pitch and 4 6 mm 2 9 times respectively 1 The tip of a 0 7 mil stylus has a diameter of 18 mm 11 times that of the CD laser spot Data is from 2 3 4 and 5 The Airy disk profile is based on 6 with rings darkened by a factor of 5 for clarity khwamkwang100 khwamsung100 ekhathungcak https th wikipedia org wiki ifl Comparison CD DVD HDDVD BD svg, wikipedia, วิกิ 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![[6]](http://darekk.com/kalkulator/airy-disk-05.gif){kind=link}
