公开(公告)号：US20170297283A1

公开(公告)日：2017-10-19

申请号：US15637607

申请日：2017-06-29

Applicant: e-Vision Smart Optics, Inc.

Inventor： Anthony VAN HEUGTEN

IPC: B29D11/00 ,  B29C45/14 ,  B29C39/10 ,  B29C35/08 ,  B29C33/00 ,  B29L11/00

CPC classification number: B29D11/00211 ,  B29C35/0805 ,  B29C35/0888 ,  B29C37/0003 ,  B29C39/10 ,  B29C45/14 ,  B29C59/16 ,  B29C2033/0005 ,  B29C2035/0827 ,  B29C2059/023 ,  B29C2791/009 ,  B29D11/00192 ,  B29D11/00269 ,  B29D11/00432 ,  B29L2011/00

Abstract: Molding optical components with fine (e.g., micron-scale) features from optical adhesive or polymer can be difficult because the optical components often stick to the mold. If the component sticks to the mold, then either the component or the mold may be damaged or destroyed as the component is removed from the mold. This damage can be reduced or avoided altogether by illuminating the interface between the component and the mold with ultraviolet (UV) light before releasing the component from the mold. The UV light reduces the adhesive forces that cause the component and the mold to stick together, making it easier to remove the component from mold without damaging either the mold or the component.

公开(公告)号：US20170336637A1

公开(公告)日：2017-11-23

申请号：US15589376

申请日：2017-05-08

Applicant: e-Vision Smart Optics, Inc.

Inventor： Anthony VAN HEUGTEN

IPC: G02B27/01 ,  G02B7/04 ,  G02B27/16 ,  G02B27/40

Abstract: A conventional head-mounted display (HMDs) can display a virtual image at a fixed focus (e.g., infinite focus). If the user looks at an object that appears closer than the virtual image, then accommodation by the user's eyes will cause the virtual image to appear blurry. The HMDs disclosed herein include a dynamic electro-active focusing element that changes the focus of the virtual image to account for accommodation by the user. This dynamic electro-active focusing element may include a curved layer of electro-active material, such as nematic or bi-stable (e.g., cholesteric) liquid crystal, disposed between a static concave mirror and a convex surface on a beam splitter or other optical element. Changing the refractive index of the electro-active material causes the focus of the dynamic electro-active focusing element, making it possible to shift the virtual image's focus in as the user's eyes change focus.