Presentation 2014-10-15
High Contrast Projection Display with Spatio-temporal Screen Reflectance Modulation by Photochromism
Shoichi TAKEDA, Daisuke IWAI, Kosuke SATO,
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Abstract(in English) We present the concept and the first implementation of high contrast projection display with spatio-temporal screen reflectance modulation by photochromism. We construct a projection display whose contrast does not decrease even under ambient light such as environmental light or inter-reflection. We use a photochromic compound (PhC) which changes its color chemically when irradiated with UV light. A PhC painted on a screen surface can modulate its reflectance spatially by illuminating UV light from a UV-LED array. We project an image from a visible projector onto the surface, therefore the contrast is increased. The experiment using the prototype system shows that the contrast achieves about three times higher than a projection-only system under environmental light.
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Keyword(in English) virtual reality / high contrast projection / UV / photochromism / reflectance modulation
Paper # EID2014-9
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Committee EID
Conference Date 2014/10/8(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) High Contrast Projection Display with Spatio-temporal Screen Reflectance Modulation by Photochromism
Sub Title (in English)
Keyword(1) virtual reality
Keyword(2) high contrast projection
Keyword(3) UV
Keyword(4) photochromism
Keyword(5) reflectance modulation
1st Author's Name Shoichi TAKEDA
1st Author's Affiliation Graduate School of Engineering Science, Osaka University()
2nd Author's Name Daisuke IWAI
2nd Author's Affiliation Graduate School of Engineering Science, Osaka University
3rd Author's Name Kosuke SATO
3rd Author's Affiliation Graduate School of Engineering Science, Osaka University
Date 2014-10-15
Paper # EID2014-9
Volume (vol) vol.114
Number (no) 248
Page pp.pp.-
#Pages 4
Date of Issue