Ragazzoli in C. Jacob, Lieux de Savoir 2, p303 reference 1, 2011
tech.days 2015#mstechdays
“Instantaneous photographs and newspaper enterprise
have invaded the sacred precincts of private and domestic
life”
Warren and Brandeis, “The Right to Privacy”, Harvard Law Review 4 no 5, 1890
cited in Helene Valance “Au Filtre de la nuit: le nocturne dans l'art americain, 1890-1917” doctoral dissertation, université Paris 7 Diderot, 2012, p75.
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Microsoft Office
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Linking people via computers
Looking through an LCD
Wedge imaging
Grating backlights
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tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
Linking people via computers
Looking through an LCD
Wedge imaging
Grating backlights
tech.days 2015#mstechdays
total internal
reflection
ray changes
direction
critical angle
reached
wedge
light guide
The more ray injection
angle differs from the
critical angle, the more
times the ray must
bounce before exit.
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distance
The more ray injection angle differs from the critical angle, the more times the ray must bounce before exit.
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projected
image
video
projector
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video projector camera
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tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
Ray enters
here
Ray
exits
here
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tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
Linking people via computers
Looking through an LCD
Wedge imaging
Grating backlights
tech.days 2015#mstechdays
tech.days 2015#mstechdays
tech.days 2015#mstechdays
adriant@microsoft.com
tech.days 2015#mstechdays
Used as a scanning
backlight, we are ok
if viewer moves up/down
But not left right, because at the bottom, one corner gets no rays
…nor if the viewermoves close because we
rays are always parallel
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tech.days 2015#mstechdays
guide raygrating film
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tech.days 2015#mstechdays
tech.days 2015#mstechdays
guide
speakergrating
film
rapid
modulation of
ejected ray
How to scan ray anglealter angle of
ray into
guide
How to scan ray point of origin
move grating
point of
contact
ray position
alters
tech.days 2015#mstechdays
• People use IT to influence others, so the ideal interface is a link between people