Light control apparatus to control the quantity of incident light with a plurality of electrochromic panels

A light control apparatus comprising:

• a light control board which has a plurality of electrochromic panels spread over its surface;
• and
• control means for controlling the quantity of incident light passing through said light control board by separately controlling the optical transmissivity of each one of said plural electrochromic panels;
• wherein each of said plurality of electrochromic panels has a first surface and a second surface, a lamination of a transparent substrate and a transparent electroconductive layer formed on each one of said first surface and said second surface respectively, and an electrochromic layer and an electrolyte layer, both being formed between said lamination formed on said first surface and said lamination formed on said second surface, and wherein the control means controls the voltage to be applied across said transparent electroconductive layer.

A light control apparatus comprising:

• a light control board which has a plurality of electrochromic panels spread over its surface;
• and
• control means for controlling the quantity of incident light passing through said light control board by separately controlling the optical transmissivity of each one of said plural electrochromic panels;
• wherein each of the plurality of electrochromic panels is belt-shaped and the light control board has said plurality of panels in one plane in order to control transmission of the incident light passing through said light control board.

A light control apparatus comprising:

• a light control board which has a plurality of electrochromic panels spread over its surface;
• and
• control means
• a) for controlling the quantity of incident light parsing through said light control board by separately controlling the optical transmissivity of each one of said plural electrochromic panels and
• b) for adjusting the optical transmissivity of one of said plural electrochromic panels to a first optical transmissivity level and the optical transmissivity of another of said plural electrochromic panels to a second optical transmissivity level at substantially the same time, said first optical transmissivity level different from said second optical transmissivity level.

A light control apparatus comprising:

• a light control board which has a plurality of electrochromic panels spread over its surface;
• and
• control means for controlling the quantity of incident light passing through said light control board by separately controlling the optical transmissivity of each one of said plural electrochromic panels;
• light condition measurement means for measuring the intensity of light illumination at a predetermined location and for outputting an illumination signal,
• wherein said control means is for separately controlling the optical transmissivity of each one of said plurality of electrochromic panels as a function of said illumination signal.

A light control apparatus comprising:

• a light control board which has a plurality of electrochromic panels spread over its surface,
• control means for controlling the optical transmissivity of each of said plurality of electrochromic panels,
• outdoor condition measurement means for measuring the intensity of outdoor illumination,
• indoor condition measurement means for measuring the intensity of indoor illumination;
• sun light path angle measurement means for measuring sun light path angle;
• and
• computing means for processing illumination data outputted from said outdoor condition measurement means, said indoor condition measurement means and said sun light path angle measurement means and for producing a first output, wherein the control means controls the quantity of incident light passing through said light control board by controlling the optical transmissivity of each of said plurality of electrochromic panels in response to said first output of said computing means.