公开(公告)号：WO2018222944A1

公开(公告)日：2018-12-06

申请号：PCT/US2018/035502

申请日：2018-05-31

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： CHEN, Wei Ting ,  SANJEEV, Vyshakh ,  ZHU, Alexander Yutong ,  KHORASANINEJAD, Mohammadreza ,  SHI, Zhujun ,  CAPASSO, Federico

IPC: G08B5/18 ,  B82Y10/00 ,  B82Y35/00 ,  B82Y40/00 ,  H01F10/32 ,  H01Q15/02

Abstract: An optical device comprises a metasurface including a plurality of nanostructures. The nanostructures define a phase profile and a group delay profile at a design wavelength. The phase profile and the group delay profile determine and control the functionalities and the chromatic dispersion of the metasurface.

公开(公告)号：WO2011051991A1

公开(公告)日：2011-05-05

申请号：PCT/IT2010/000428

申请日：2010-10-25

Applicant: AZZALI, Franco

Inventor： AZZALI, Franco

IPC: G08B5/02 ,  G08B5/18 ,  E05B19/22

CPC classification number: G08B5/02 ,  E05B19/04 ,  E05B19/22 ,  G07C9/00944 ,  G08B5/18

Abstract: The invention relates to the field of keys for locks and relative accessories. In particular, the invention relates to a device for signalling the opening or closing condition of a lock, comprising a body (2) arranged for being associated with a key (3), or for covering it at least partially or for being incorporated therein, wherein said body comprises: - a selector (4, 5) arranged for reaching two operating positions; - visual signalling means (6', 6") intuitively correctable to the opening or closing condition of said lock, wherein each of the two operating positions of the selector (4, 5) is arranged for cooperating unequivocally with said visual signalling means (6\ 6") to permanently indicate the current condition of the lock.

Abstract translation: 本发明涉及锁和相关附件的钥匙领域。 特别地，本发明涉及一种用于指示锁的打开或关闭状态的装置，其包括布置成与钥匙（3）相关联的主体（2）或用于至少部分地或用于将其包括在其中的主体（2） 其中所述主体包括： - 布置成达到两个操作位置的选择器（4,5）; - 视觉信号装置（6'，6“）可直观地校正到所述锁的打开或关闭状态，其中选择器（4,5）的两个操作位置中的每一个被布置成与所述视觉信号装置（6）协调 \ 6“）永久显示锁的当前状态。