US 5,861,995 A · Ergonomic head-mounted image display apparatus

Abstract

The present invention provides a head-mount image display apparatus which is maximumly reduced in size so as to arrange eyepiece optical systems in limited spaces such that the eyepiece optical systems do not touch the user's nose. The head-mount image display apparatus comprises LCD for displaying images for left and right eyes, eyepiece optical systems for guiding the images for left and right eyes displayed on the LCD to left and right eyeballs, body of the display apparatus for supporting the LCDs and the eyepiece optical systems for the left and right eyes such that the LCD and the eyepiece optical system for the right eyepiece is arranged at a predetermined distance from the LCD and the eyepiece optical system for the left eye, wherein corners of the eyepiece optical systems, at least which face a user's nose, are each provided with a chamfered portion planed off so as not to touch the user's nose.

Claims12

Dependent claims

A prism optical system arranged between an image surface and a pupil point, comprising:

a prism including at least three faces having an optical effect of a light beam passing therethrough and/or reflecting thereupon, a first face being arranged on a pupil side and allowing the light beam to pass therethrough, a third face being arranged on an image surface side and allowing the light beam to pass therethrough, and a second face being arranged between the first and third faces and allowing the light beam to be reflected within the prism;
and
a pair of side faces attached to both sides of one of the first, second and third faces, said side faces having a non-optical effect,
wherein an ear portion is provided on, and outwardly projects from, each of the pair of side faces.

1 more element

Dependencies are inferred from the claim text.

Ergonomic head-mounted image display apparatus

Life of this patent

Ergonomic head-mounted image display apparatus

Life of this patent

Abstract

Claims12