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    • 7. 发明公开
    • 열변색층을 갖는 광학 데이터 매체
    • 具有热变色层的光学数据载体
    • KR1020070050989A
    • 2007-05-16
    • KR1020077007714
    • 2005-08-30
    • 코닌클리케 필립스 엔.브이.
    • 히크맷라이팟에이.엠.
    • G11B7/257
    • B82Y10/00G11B7/2534G11B7/257G11B7/2575G11B2007/25706Y10T428/25Y10T428/256
    • The invention relates to an optical data carrier ( 1, 10 ) comprising a thermochromic layer ( 4, 11, 20 ) including a dielectric transition material ( 21 ) and metal nano-particles ( 22 ) embedded in said transition material ( 21 ) for absorbing at least a part of an irradiation ( 3 ) applied to said optical data carrier ( 1, 10 ) for reading out data from said optical data carrier ( 1,10 ) and/or for recording data on said optical data carrier ( 1, 10 ). The invention further relates to an optical master ( 30 ) for manufacturing an optical data carrier, said optical master ( 30 ) comprising such a thermochromic layer ( 20, 32 ). In order to provide an optical data carrier ( 1, 10 ) or an optical master ( 30 ) with a thermochromic material which allows a choosing of the position of the absorption band and of the temperature at which a thermochromic effect takes place and which is further sufficiently fast and stable, it is proposed that said transition material ( 21 ) has a first value of a material characteristic being a specific volume and/or a thermal expansion coefficient of said transition material ( 21 ) below a transition temperature (T g , T m ) and a second value of said material characteristic above said transition temperature (T g , T m ), said second value being higher than said first value.
    • 9. 发明授权
    • 헤미시아닌 색소 및 이를 이용한 광기록매체
    • 헤미시아닌색소및이를이용한광기록매체
    • KR100370405B1
    • 2003-01-29
    • KR1020000026474
    • 2000-05-17
    • 삼성전자주식회사
    • 제종태이규연허영재
    • G11B7/246
    • C09B23/145G11B7/2472G11B7/2533G11B7/2534G11B7/2535G11B7/256G11B7/2575G11B7/259
    • A hemicyanine dye having formula (1) and an optical recording medium using the hemicyanine dye as an optical recording medium are provided: where Z is a benzene ring, naphthalene ring or anthracene ring; X1 is S, O, Se, NR or C(CH3)2, where R is hydrogen or an alkyl group of 1 to 5 carbon atoms; R1 is hydrogen, a halogen atom, an alkyl group of 1 to 3 carbon atoms, a nitro group, an alkoxy group of 1 to 3 carbon atoms or an amine group; each of R2 and R4 is an alkyl group of 1 to 5 carbon atoms; R3 is H, OH, OCOCH3 or OSO2C6H4Cl; Y is Cl, Br, I, ClO4, BF4, BrO4, PF6, CH3SO3, CF3SO3, 4-CH3C6H4SO3, C6H5SO3, 6-SO3C10H6SO3 or HSO4; and n is an integer of 0-2. The hemicyanine dye having formula (1) above is easy to synthesize with high yield. Thus, use of the hemicyanine dye as an optical recording material in manufacturing optical recording media can reduce the manufacturing cost.
    • 提供具有式(1)的半花菁染料和使用半花菁染料作为光学记录介质的光学记录介质:< CHEM> 其中Z是苯环,萘环或蒽环; X1是S,O,Se,NR或C(CH3)2,其中R是氢或1至5个碳原子的烷基; R 1是氢,卤素原子,1至3个碳原子的烷基,硝基,1至3个碳原子的烷氧基或胺基; R2和R4各自为1至5个碳原子的烷基; R3是H,OH,OCOCH3或OSO2C6H4Cl; Y是Cl,Br,I,ClO4,BF4,BrO4,PF6,CH3SO3,CF3SO3,4-CH3C6H4SO3,C6H5SO3,6-SO3C10H6SO3或HSO4; 并且n是0-2的整数。 具有上述式(1)的半花菁染料容易合成,收率高。 因此,在制造光学记录介质中使用半花菁染料作为光学记录材料可以降低制造成本。