公开(公告)号：US20210325674A1

公开(公告)日：2021-10-21

申请号：US17359650

申请日：2021-06-28

申请人： Elbit Systems Ltd.

发明人： Ornit AMIR ,  Yolanda LANDESBERG ,  Aron ARLIEVSKY ,  Ofer NESHER

IPC分类号： G02B27/01 ,  G02B27/00 ,  G02B30/34

摘要： A direct view display system (DVDS) and a method to operate it are provided herein. The DVDS may include: a variable optical power element (VOPE); a transparent active image source located with the VOPE on a common optical axis going from an outside scene to an eye position of a viewer; and a time division multiplexer (TDM) configured to control the VOPE and the transparent active image source, wherein the TDM is configured in a certain time period to cause the transparent active image source to be in a transparent state and the VOPE to exhibit no optical power, and wherein the TDM is configured in another time period to cause said transparent active image source to exhibit an image and said VOPE to apply non-zero optical power, for projecting the image onto the eye position at a desirable distance therefrom.