Optical element changing optical density in response to...

Details Optical element changing optical density in response to... Optical element changing optical density in response to...

2007-02-20

2007-02-20

Perkey, W. B. (Department: 2851)

Photography

Disposable or recyclable camera

C396S506000, C359S265000

Reexamination Certificate

active

11072511

ABSTRACT:
An optical element comprises: an electromotive force-generating element that generates an electromotive force in response to electromagnetic wave; and an optical density-changing element that changes its optical density according to the electromotive force, the optical density-changing element comprising: at least one of metal sulfide and metal nitride; and a material that causes a change of the optical density and adsorbs to said at least one of metal sulfide and metal nitride.

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Cummins, David et al, “Ultrafast Electrochromic Windows Based on Redox-Chromophore Modified Nanostructured Semiconducting and Conducting Films” Journal of Physical Chemistry B, vol. 104, 2000, pp. 11449-11459.

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