Projecting light at angle corresponding to the field of view of a camera

1. A device, comprising:

a camera;

four laser diodes (LDs);

four prisms respectively arranged to each direct light from one of the LDs;

a processor; and

storage accessible to the processor and comprising instructions executable by the processor to:

initiate the camera; and

project light from the device to correspond to a field of view per a zoom executed by the device using input from the camera, wherein the instructions are executable to orient the prisms to project light from the four LDs at angles which together frame the field of view per the zoom and which establish four beams of light corresponding to four corners of the field of view per the zoom.

2. The device of claim 1 , comprising at least one mirror, wherein the instructions are executable by the processor to orient the at least one mirror to project light from at least one of the LDs at an angle which frames the field of view per the zoom.

3. The device of claim 2 , wherein the mirror is a microelectromechanical systems (MEMS) mirror.

4. The device of claim 1 , comprising at least one light emitting diode (LED), wherein the instructions are executable by the processor to direct light from the LED through a lens of the camera at an angle which frames the field of view per the zoom.

5. The device of claim 4 , wherein light is directed through the lens to establish a rectangular representation of the field of view per the zoom, and wherein the rectangular representation corresponds to the boundary of the field of view per the zoom.

6. The device of claim 1 , wherein perforations that are at least one of at the camera and near the camera direct light from a light source outwardly from the device at one or more angles corresponding to the field of view per the zoom.

7. A method, comprising:

initiating a camera on a device; and

projecting light from four laser diodes (LD) through four respective prisms of the device at respective angles framing a field of view associated with a focal length of the camera, the projecting performed at least in part by moving the prisms to project light at the respective angles which together frame the field of view associated with the focal length and which establish respective beams of light corresponding to respective corners of the field of view associated with the focal length.

8. The method of claim 7 , wherein the device further comprises a mirror controllable to direct light.

9. The method of claim 7 , wherein light is projected from the device at least in part through a lens of the camera.

10. A device, comprising:

a camera;

four laser diodes (LDs);

four prisms respectively arranged to each direct light from one of the LDs;

a processor; and

storage accessible to the processor and comprising instructions executable by the processor to:

project light from the device to frame a field of view of the camera according to a focal length of the camera at least in part by moving the four prisms to project light from the four LDs at respective angles to establish respective beams of light corresponding to respective corners the field of view according to the focal length.

11. The device of claim 1 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising a selector element that is selectable to configure the device to project light from the device at at least one angle corresponding to a field of view per zooming executed by the device using input from the camera.

12. The device of claim 11 , wherein the selector element is a first selector element, and wherein the UI comprises a second selector element that is selectable to configure the device to decline to project light from the device at at least one angle corresponding to a field of view per zooming executed by the device using input from the camera.

13. The device of claim 1 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising an option that is selectable to specify a particular color in which the device is to project light from the device at at least one angle corresponding to a field of view per zooming executed by the device using input from the camera.

14. The device of claim 1 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising a first option that is selectable to configure the device to project light from the device to represent corners of a field of view per zooming executed by the device using input from the camera, the UI further comprising a second option that is selectable to configure the device to project light from the device in the form of a box to outline a field of view per zooming executed by the device using input from the camera.

15. The method of claim 7 , comprising:

presenting, on a display, a user interface (UI) comprising a selector element that is selectable to configure the device to project light from the device at at least one angle framing a field of view defined by zooming performed by the device based on input from the camera.

16. The method of claim 7 , comprising:

presenting, on a display, a user interface (UI) comprising an option that is selectable to specify a particular color in which light is to be projected from the device according to a field of view of the camera.

17. The method of claim 7 , comprising:

presenting, on a display, a user interface (UI) comprising a first option that is selectable to configure the device to project light from the device to represent corners of a field of view of the camera, the UI further comprising a second option that is selectable to configure the device to project light from the device in the form of a box to outline a field of view of the camera.

18. The device of claim 10 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising a selector element that is selectable to enable the device to project light from the device according to a field of view of the camera.

19. The device of claim 10 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising an option that is selectable to specify a particular color in which the device is to project light according to a field of view of the camera.

20. The device of claim 10 , wherein the instructions are executable by the processor to:

present, on a display, a user interface (UI) comprising a first option that is selectable to configure the device to project light from the device to represent corners of a field of view of the camera, the UI further comprising a second option that is selectable to configure the device to project light from the device in the form of a box to outline a field of view of the camera.