Stereomirror™ Technology - Planar SD2620W User Manual

StereoMirror™ Technology
A StereoMirror monitor consists of two AMLCD (Active Matrix Liquid Crystal
™
Display) units, oriented at a 110º angle and mounted on a specially designed
stand. A passive beamsplitter mirror bisects the angle formed between the
two monitors, and there is a fine mechanical adjustment for the mirror angle
between the two displays. One side of the glass mirror has a reflective
coating, and the other side has an anti-reflective coating to minimize
secondary reflections. The mirror has been treated with a hard top coating to
accommodate cleaning.
In general, the
objective of a
stereoscopic
display is to
efficiently
present a left
eye image
solely to the
left eye while
the right eye
image is
directed to the
right eye. This
allows the
Operating principle of the StereoMirror monitor
human visual
system to
merge the two images and results in the perception of depth, or stereopsis.
In the StereoMirror design this stereo separation is achieved using the
™
principle of conservation of polarization.
Liquid crystal displays operate based on the ability of liquid crystal material to
modulate plane-polarized light. The two AMLCDs in the SD2620W model
have been manufactured so that the polarized light emitted from the top
monitor is 90° rotated from that of the bottom monitor. The image from the
lower monitor is seen through the mirror, as shown in the illustration above.
When stereo pair images from the two monitors are viewed through crossed-
polarizing glasses (glasses with polarizing films mounted on the eyepieces
with their planes of polarization at a right angle to one another), the user only
sees the left eye image with the eyepiece having the 90°-oriented polarizer
and the right eye image with the eyepiece having the 0° polarizer. Light with
a perpendicular polarization is not transmitted. The result is a single, fused
stereoscopic image.
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