Controlling the transmission of light from light sources

Details Controlling the transmission of light from light sources Controlling the transmission of light from light sources

1997-02-12

1999-11-30

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With gas or vapor

Envelope with particular structure

313112, 313493, 313573, 313634, 313635, 362 61, 362318, 359265, H01J 1716, H01J 6135, B60Q 100, B60Q 164

Patent

active

059948400

ABSTRACT:
The envelope (6) of a light source is at least partly coated with electrochromic material (20), sandwiched between two conductive layers (21,22). A voltage applied to the electrochromic material by way of the conductive layers varies the intensity and/or color of the light from the source.

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