Sensing system and method

1 . A sensing system comprising:

first coded aperture configured to receive incident light and transmit a coded image;

a light replication component configured to detect the coded image and emit a replicated coded image;

a second coded aperture configured to receive the replicated coded image and transmit a decoded image;

a sensor configured to detect the decoded image,

wherein the light replication component comprises:

an incident light receiving surface and an opposed light emitting surface;

a substantially transparent planar substrate;

one or more bipolar junction transistors provided on the substantially transparent planar substrate, each transistor comprising a collector region adjacent to the light receiving surface, an emitter region adjacent to the light emitting surface, and a base region between the collector region and the emitter region; and

circuitry for biasing the bipolar transistors in use,

wherein each transistor is configured and biased in use so that the collector and base regions of the transistor operate as a photodiode while the base and emitter regions operate as a light emitting diode.

2 . The sensing system of claim 1 , wherein an optical coding pattern of the second coded aperture is an inverse pattern of an optical coding pattern of the first coded aperture.

3 . The sensing system of claim 1 , wherein the first coded aperture, the second coded aperture, or both comprises a random optical coding pattern.

4 . The sensing system of claim 1 , wherein the first coded aperture, the second coded aperture, or both comprises a Uniformly Redundant Array or a Modified Uniformly Redundant Array.

5 . The sensing system of claim 1 , wherein the first coded aperture and the second coded aperture comprise substantially identical patterns.

6 . The sensing system of claim 1 , wherein the first coded aperture, the second coded aperture, or both comprises a controllable display.

7 . The sensing system of claim 1 , wherein the second coded aperture is mounted on the sensor.

8 . The sensing system of claim 1 , wherein the light replication component comprises an incident light receiving surface and an opposed light emitting surface.

9 . The sensing system of claim 1 , wherein the light replication component comprises an organic photodiode, an organic phototransistor, or an organic light emitting diode.

10 . An electronic device comprising the sensing system of claim 1 .

11 . A method of sensing light comprising:

receiving incident light via a first coded aperture and transmitting a coded image;

detecting the coded image;

emitting a replicated coded image in connection with a light replication component,

wherein the light replication component comprises:

an incident light receiving surface and an opposed light emitting surface;

a substantially transparent planar substrate;

one or more bipolar junction transistors provided on the substantially transparent planar substrate, each transistor comprising a collector region adjacent to the light receiving surface, an emitter region adjacent to the light emitting surface, and a base region between the collector region and the emitter region; and

circuitry for biasing the bipolar transistors in use,

wherein each transistor is configured and biased in use so that the collector and base regions of the transistor operate as a photodiode while the base and emitter regions operate as a light emitting diode;

receiving the replicated coded image via a second coded aperture and transmitting a decoded image; and

detecting the decoded image.

12 . A non-transitory computer readable medium storing computer readable instructions that, when executed by a processor, causes a computer to carry out the method according to claim 11 .