Optical apparatus, rendering and erasing apparatus, and irradiation method

    公开(公告)号:US10919329B2

    公开(公告)日:2021-02-16

    申请号:US16619598

    申请日:2018-04-17

    申请人: Sony Corporation

    IPC分类号: B41J2/455 B41M7/00

    摘要: An optical apparatus according to an embodiment of the present disclosure is an apparatus that performs one or both of writing and erasing of information with respect to a reversible recording medium. This optical apparatus includes a plurality of laser devices varying in emission wavelength in a near infrared region (700 nm to 2500 nm), an optical system that multiplexes laser beams outputted from the plurality of laser devices, and a scanner unit that scans a multiplexed light beam obtained by multiplexing by the optical system, on the reversible recording medium.

    REVERSIBLE RECORDING MEDIUM AND EXTERIOR MEMBER

    公开(公告)号:US20190275819A1

    公开(公告)日:2019-09-12

    申请号:US16348915

    申请日:2017-10-17

    申请人: Sony Corporation

    IPC分类号: B41M5/30 B41M5/46 B41M5/36

    摘要: A reversible recording medium of an embodiment of the present disclosure includes a support base and a recording layer. The recording layer is provided on the support base and reversibly changes between a recorded state and a deleted state. A chroma difference ΔC* between the support base and the recording layer satisfies the relational expression (1) where an absorption spectrum in a visible region of the recording layer in the deleted state and an absorption spectrum in a visible region of the support base are each denoted by L*a*b*.

    Reversible recording medium, reversible recording medium coating, and exterior member

    公开(公告)号:US11590787B2

    公开(公告)日:2023-02-28

    申请号:US16349822

    申请日:2017-10-17

    申请人: Sony Corporation

    摘要: A reversible recording medium of an embodiment of the disclosure includes a support base, and a recording layer provided on the support base and reversibly changing between a recorded state and a deleted state. The recording layer includes a photothermal conversion material including one or more of a compound having a phthalocyanine skeleton, a compound having a squarylium skeleton, a compound having a cyanine skeleton including, in a molecule, one or both of a counter ion of SbF6, PF6, BF4, ClO4, CF3SO3 and (CF3SO3)2N and a methine chain containing a five-membered ring or a six-membered ring, and an inorganic compound; a coloring compound having an electron-donating property; and a color developing/quenching agent having an electron-accepting property and including at least one salicylic acid compound represented by the general formula (1) and including a linear hydrocarbon group having 25 to 34 carbon atoms via a linking group containing an amide moiety.