Combining multiple spectral bands to generate an image

1 . A method for generating an image, comprising:

receiving light associated with a plurality of spectral bands;

repeating the following for each spectral band associated with the light:

receiving an electrical signal at an electro-optical element;

changing an optical property of the electro-optical element in response to the electrical signal to filter for a spectral band; and

transmitting the spectral band to a sensor;

sensing the spectral bands at the sensor;

combining the spectral bands to generate a composite signal; and

generating an image from the composite signal.

2 . The method of claim 1 , wherein the electro-optical element comprises:

a first layer sensitive to a first spectral band of the spectral bands; and

a second layer sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first layer and to activate the second layer.

3 . The method of claim 1 , wherein the electro-optical element comprises:

a first section sensitive to a first spectral band of the spectral bands; and

a second section sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first section and to activate the second section.

4 . The method of claim 1 , wherein combining the spectral bands to generate the composite signal comprises:

accessing a function of the spectral bands; and

multiplexing the spectral bands in accordance with the function to combine the spectral bands.

5 . The method of claim 1 , wherein the sensor is synchronized with the electro-optical element, the sensor being operable to sense a spectral band when the spectral band arrives at the sensor from the electro-optical element.

6 . The method of claim 1 , wherein generating the image from the composite signal comprises:

receiving the composite signal, the composite signal associated with a plurality of display spectral bands;

repeating the following for each display spectral band associated with the composite signal:

sending a display electrical signal to a display electro-optical element;

changing an optical property of the display electro-optical element in response to the display electrical signal to filter for a display spectral band; and

transmitting the display spectral band to a display; and

displaying the display spectral bands at the display to generate the image.

7 . A system for generating an image, comprising:

a electro-optical element operable to:

receive light associated with a plurality of spectral bands;

repeat the following for each spectral band associated with the light:

receive an electrical signal;

change an optical property of the electro-optical element in response to the electrical signal to filter for a spectral band; and

transmit the spectral band to a sensor;

a sensor coupled to the electro-optical element and operable to sense the spectral bands;

an image processing module coupled to the sensor and operable to combine the spectral bands to generate a composite signal; and

a display module coupled to the image processing module and operable to generate an image from the composite signal.

8 . The system of claim 7 , wherein the electro-optical element comprises:

a first layer sensitive to a first spectral band of the spectral bands; and

a second layer sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first layer and to activate the second layer.

9 . The system of claim 7 , wherein the electro-optical element comprises:

a first section sensitive to a first spectral band of the spectral bands; and

a second section sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first section and to activate the second section.

10 . The system of claim 7 , wherein the image processing module combines the spectral bands to generate the composite signal by:

accessing a function of the spectral bands; and

multiplexing the spectral bands in accordance with the function to combine the spectral bands.

11 . The system of claim 7 , wherein the sensor is synchronized with the electro-optical element, the sensor being operable to sense a spectral band when the spectral band arrives at the sensor from the electro-optical element.

12 . The system of claim 7 , wherein the display module is operable to generate the image from the composite signal by:

receiving the composite signal, the composite signal associated with a plurality of display spectral bands;

repeating the following for each display spectral band associated with the composite signal:

sending a display electrical signal to a display electro-optical element;

changing an optical property of the display electro-optical element in response to the display electrical signal to filter for a display spectral band; and

transmitting the display spectral band to a display; and

displaying the display spectral bands at the display to generate the image.

13 . A logic for generating an image, the logic embodied in a medium and operable to:

receive light associated with a plurality of spectral bands;

repeat the following for each spectral band associated with the light:

receive an electrical signal at an electro-optical element;

change an optical property of the electro-optical element in response to the electrical signal to filter for a spectral band; and

transmit the spectral band to a sensor;

sense the spectral bands at the sensor;

combine the spectral bands to generate a composite signal; and

generate an image from the composite signal.

14 . The logic of claim 13 , wherein the electro-optical element comprises:

a first layer sensitive to a first spectral band of the spectral bands; and

a second layer sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first layer and to activate the second layer.

15 . The logic of claim 13 , wherein the electro-optical element comprises:

a first section sensitive to a first spectral band of the spectral bands; and

a second section sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first section and to activate the second section.

16 . The logic of claim 13 , operable to combine the spectral bands to generate the composite signal by:

accessing a function of the spectral bands; and

multiplexing the spectral bands in accordance with the function to combine the spectral bands.

17 . The logic of claim 13 , wherein the sensor is synchronized with the electro-optical element, the sensor being operable to sense a spectral band when the spectral band arrives at the sensor from the electro-optical element.

18 . The logic of claim 13 , operable to generate the image from the composite signal by:

receiving the composite signal, the composite signal associated with a plurality of display spectral bands;

repeating the following for each display spectral band associated with the composite signal:

sending a display electrical signal to a display electro-optical element;

changing an optical property of the display electro-optical element in response to the display electrical signal to filter for a display spectral band; and

transmitting the display spectral band to a display; and

displaying the display spectral bands at the display to generate the image.

19 . A system for generating an image, comprising:

means for receiving light associated with a plurality of spectral bands;

means for repeating the following for each spectral band associated with the light:

receiving an electrical signal at an electro-optical element;

changing an optical property of the electro-optical element in response to the electrical signal to filter for a spectral band; and

transmitting the spectral band to a sensor;

means for sensing the spectral bands at the sensor;

means for combining the spectral bands to generate a composite signal; and

means for generating an image from the composite signal.

20 . A method for generating an image, comprising:

receiving light associated with a plurality of spectral bands;

repeating the following for each spectral band associated with the light:

receiving an electrical signal at an electro-optical element, the electro-optical element comprising a first layer sensitive to a first spectral band of the spectral bands, and comprising a second layer sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first layer and to activate the second layer, the electro-optical element further comprising a first section sensitive to a first spectral band of the spectral bands, and comprising a second section sensitive to a second spectral band of the spectral bands, the electrical signal operable to activate the first section and to activate the second section;

changing an optical property of the electro-optical element in response to the electrical signal to filter for a spectral band; and

transmitting the spectral band to a sensor;

sensing the spectral bands at the sensor, the sensor synchronized with the electro-optical element, the sensor being operable to sense a spectral band when the spectral band arrives at the sensor from the electro-optical element;

combining the spectral bands to generate a composite signal by accessing a function of the spectral bands, and by multiplexing the spectral bands in accordance with the function to combine the spectral bands; and

generating an image from the composite signal by:

receiving the composite signal, the composite signal associated with a plurality of display spectral bands;

repeating the following for each display spectral band associated with the composite signal: sending a display electrical signal to a display electro- optical element, changing an optical property of the display electro-optical element in response to the display electrical signal to filter for a display spectral band, and transmitting the display spectral band to a display; and

displaying the display spectral bands at the display to generate the image.