Electrically controlled glass in a lamp
View Patent ↗An apparatus for generating light may be comprised of a light source with a lens interposed in a light path from the light source. The lens may be comprised of two or more sections wherein at least one section may be comprised of smart glass. Electrical circuitry may be configured to control a transparency state of the smart glass lens sections. Another embodiment may have two reflectors wherein one of the reflectors may be interposed between the light source and the other reflector and may be comprised of smart glass with a transparent state and a reflective state so that two different reflection patterns may be created. A method for illumination wherein at least one area's illumination is controlled by a section of smart glass is also disclosed.
1. A lighting apparatus comprising:
a light source;
a first reflector having a first reflection pattern of light from the light source;
a second reflector having a second reflection pattern interposed between the light source and the first reflector, the second reflector comprising smart glass having a reflectivity state;
electrical circuitry configured to control the reflectivity state of the smart glass;
an enclosure, substantially the same size and shape as a typical incandescent light bulb, and at least partially surrounding the light source and the electrical circuitry; and
an electrical connection for receiving power, the electrical connection comprising an Edison screw fitting base;
wherein if the reflectivity state of the smart glass of the second reflector is substantially transparent, the lighting apparatus is configured to allow the light from the light source to pass through the second reflector and be reflected in the form of the first reflection pattern with the first reflector; and
wherein if the reflectivity state of the smart glass of the second reflector is substantially reflective, the lighting apparatus is configured to substantially block light from the light source from reaching the first reflector and reflect the light from the light source in the form of the second reflection pattern with the second reflector.
2. The lighting apparatus of claim 1 wherein the light source comprises one or more LEDs.
3. A method of illumination comprising:
generating light within a lighting apparatus having substantially the same size and shape as a typical incandescent light bulb;
creating a first reflection pattern of the light by setting smart glass of a first reflector positioned inside of the lighting apparatus to a substantially reflective state; and
creating a second reflection pattern of the light by setting the smart glass of the first reflector to a substantially transparent state, wherein the light passes through the substantially transparent smart glass of the first reflector before being reflected by a second reflector positioned inside of the lighting apparatus.
4. The method of claim 3 further comprising:
receiving a command; and
controlling the state of the smart glass of the first reflector based on the command.
5. The lighting apparatus of claim 1 , the electrical circuitry comprising:
a controller coupled to the smart glass of the second reflector; and
network circuitry coupled to the controller and configured to receive data from a network; wherein
the controller is configured to receive network data from the network circuitry and control the reflectivity state of the smart glass of second reflector based on the network data.
6. The method of claim 3 , wherein the generating light comprises powering one or more LEDs.