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Patent Searching and Data


Title:
EYEPIECE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/190031
Kind Code:
A1
Abstract:
Disclosed is an eyepiece that is provided with three or more lenses that are sequentially disposed from the eye point side toward the image side. A cemented lens comprises at least two lenses of the three or more lenses, one lens of the three or more lenses is an aspherical lens, and the following conditional formulae are satisfied: (1) ω'/(tan-1(h/L))≥2.2, and (2) ω'≥0.698, where ω' represents a half value (rad) of the maximum viewing angle, h represents the maximum image height, and L represents the distance from an eye point to an image.

Inventors:
SUZUKI MAMORU (JP)
ARAI TAKEO (JP)
MATSUYAMA TAKATOSHI (JP)
Application Number:
PCT/JP2018/008236
Publication Date:
October 18, 2018
Filing Date:
March 05, 2018
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
G02B25/00; G02B13/18; G02B27/02
Domestic Patent References:
WO2018008249A12018-01-11
Foreign References:
JP2005134867A2005-05-26
JPH06300977A1994-10-28
JPH10186245A1998-07-14
JP2013057816A2013-03-28
JP2005244919A2005-09-08
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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