Light weight head mounted image display device

Details Light weight head mounted image display device Light weight head mounted image display device

2006-01-17

2006-01-17

Epps, Georgia (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S013000, C345S008000

Reexamination Certificate

active

06987620

ABSTRACT:
An image display element1and an observation optical system2which forms an exit pupil4for observation of an image displayed on the image display element are included, wherein the observation optical system2has at least one surface21that has a lens function, and the following condition (1) is satisfied:in-line-formulae description="In-line Formulae" end="lead"?0.1<P·PD·ZD<5  (1)in-line-formulae description="In-line Formulae" end="tail"?where P is a pixel pitch (in μm) of the image display element, PD is a diameter (in mm) of the exit pupil, and ZD is a distance (in mm) from the display surface of the image display element to the first surface having a lens function. Whereby, weight reduction is achieved while good image quality is maintained regarding an image display apparatus that is used for magnifying observation of an image on a display element.

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