Invention Application
- Patent Title: VIRTUAL IMAGE OBSERVATION OPTICAL SYSTEM AND LIGHT GUIDE PRISM
- Patent Title (中): 虚拟图像观察光学系统和光指导原则
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Application No.: US14642916Application Date: 2015-03-10
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Publication No.: US20150260988A1Publication Date: 2015-09-17
- Inventor: Ryohei SUGIHARA , Shinya TAKAHASHI , Yoichi IBA
- Applicant: OLYMPUS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: OLYMPUS CORPORATION
- Current Assignee: OLYMPUS CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2014-047849 20140311
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02B27/00 ; G02B5/04
Abstract:
A first light blocking portion and a second light blocking portion are formed in at least one of the side surfaces of a light guide prism. The first light blocking portion and the second light blocking portion are arranged so that a shaded area and an invisible area overlap each other at least partly and cover an inter-groove area between the first light blocking portion and the second light blocking portion, where the shaded area is an area shadowed from image light due to the first light blocking portion, and the invisible area is an area invisible during virtual image observation by the observer due to the second light blocking portion.
Public/Granted literature
- US09804390B2 Virtual image observation optical system and light guide prism Public/Granted day:2017-10-31
Information query
