Attachable image display device and ocular optical system

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United States of America Patent

PATENT NO 10001650
SERIAL NO

15385861

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An attachable image display device includes a light guiding prism that guides image light from a display element, and an eyepiece that emits the image light guided by the light guiding prism, wherein the light guiding prism includes an outer peripheral surface, and a reflection surface off which the image light is reflected to the eyepiece; and a portion of or the entirety of an intersection line of the outer peripheral surface and a plane including an optical axis of the image light before the image light is reflected off the reflection surface has a negative inclination angle to the optical axis in a direction downstream of the light path, and a tangential inclination angle of the portion of or the entirety of the intersection line becomes gradually larger from an upstream side to a downstream side of the light path.

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Patent Owner(s)

  • KOPIN CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iba, Yoichi Hachioji, JP 66 2636
Tomine, Hideki Machida, JP 3 122

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