Variable transmittance optical devices

    公开(公告)号:US10139695B2

    公开(公告)日:2018-11-27

    申请号:US14873980

    申请日:2015-10-02

    摘要: A self-powered variable transmittance optical device, such as a smart window or other device, and associated method are provided. The device comprises one or more transparent substrates, with a switching material disposed thereon or therebetween. The switching material may be a hybrid photochromic/electrochromic material capable of transitioning from a first transmittance state to a second transmittance state with application of electricity, and from second state to first state due to another stimulus, such as UV radiation. Electrodes are coupled to the switching material for applying electricity. An electrical system provides for controllable application of the electricity, and may store energy. Energy is provided by an energy-harvesting power source such as a solar cell or other photovoltaic source, or array thereof, or another device for harvesting vibrational or thermal energy. Energy harvesting, energy storage capacity and/or switching material may be configured to provide at least a predetermined level of device operability.

    Photochromic and electrochromic compounds and methods of synthesizing and using same
    9.
    发明授权
    Photochromic and electrochromic compounds and methods of synthesizing and using same 有权
    光致变色和电致变色化合物及其合成和使用方法

    公开(公告)号:US08450503B2

    公开(公告)日:2013-05-28

    申请号:US12828756

    申请日:2010-07-01

    IPC分类号: C07D333/50 C07D409/02

    摘要: This invention relates to novel photochromic and electrochromic monomers and polymers based on 1,2-dithienylcyclopentene derivatives and method of using and synthesizing same. The compounds are reversibly interconvertible between different isomeric forms under suitable photochromic or electrochromic conditions. The electrochromic conversion may be catalytic. The application also relates to ultra-high density homopolymers prepared using ring-opening methathesis polymerization (ROMP) where the central ring of the 1,2-bis(3-thienyl)-cyclopentene is incorporated directly into the polymer backbone. The monomer units may be readily functionalized to enable the synthesis of polymers with diverse structural and electronic properties. The compounds have many potential applications including high-density optical information storage systems, photoregulated molecular switches, reversible holographic systems, ophthalmic lenses, actinometry and molecular sensors, photochromic inks, paints and fibers and optoelectronic systems such as optical waveguides, Bragg reflectors and dielectric mirrors.

    摘要翻译: 本发明涉及基于1,2-二噻吩环戊烯衍生物的新型光致变色和电致变色单体和聚合物及其使用和合成方法。 在合适的光致变色或电致变色条件下,化合物在不同的异构体形式之间是可逆的相互转化的。 电致变色可能是催化的。 本申请还涉及使用开环错译聚合(ROMP)制备的超高密度均聚物,其中1,2-双(3-噻吩基) - 环戊烯的中心环直接并入聚合物主链。 单体单元可以容易地官能化以使得能够合成具有不同结构和电子性质的聚合物。 这些化合物具有许多潜在的应用,包括高密度光学信息存储系统,光调节分子开关,可逆全息系统,眼用透镜,光化学测量和分子传感器,光致变色油墨,油漆和纤维以及光电子系统,如光波导,布拉格反射器和电介质镜 。