Thermal gunsights

1. A gunsight for aiming a firearm, the firearm having a barrel defining a bore, the bore extending along a bore axis, the bore axis extending in a forward direction and a rearward direction, the gunsight comprising:

a microbolometer and an objective optic positioned forward of the microbolometer for focusing electromagnetic waves on the microbolometer, the objective optic comprising one or more objective lenses;

a display and an eyepiece optic positioned rearward of the display for allowing a user to view the display through the eyepiece optic, the eyepiece optic comprising one or more eyepiece lenses;

circuitry operatively coupled to the microbolometer and the display, wherein the circuitry comprises one or more processors and a non-transitory computer readable medium storing one or more instruction sets, wherein the one or more instruction sets include instructions configured to be executed by the one or more processors to cause the gunsight to:

capture image signals with the microbolometer, the image signals corresponding to a first field of view, the first field of view having a first area;

display an image, the image corresponding to a second field of view, the second field of view having a second area, the first area being greater than the second area;

analyze the image signals from the microbolometer and identify one or more heat signatures located inside the first field of view and outside of the second field of view;

display an icon superimposed on the first image, the icon being displayed at an icon position, the icon position being selected based on a location of a selected one of the one or more heat signatures located inside the first field of view and outside of the second field of view.

2. The gunsight of claim 1 wherein the one or more heat signatures comprises at least two heat signatures and wherein the selected one of the one or more heat signatures is closer to the first field of view than at least one other of the one or more heat signatures.

3. The gunsight of claim 1 wherein the one or more heat signatures comprises at least two heat signatures and wherein the selected one of the one or more heat signatures is closer to the first field of view than all of the other one or more heat signatures.

4. The gunsight of claim 1 wherein the icon position is located in an upper right quadrant of the first image if the selected one of the one or more heat signatures is located forward and starboard of a reference heat signature.

5. The gunsight of claim 1 wherein the icon position is located in an upper left quadrant of the first image if the selected one of the one or more heat signatures is located forward and portward of a reference heat signature.

6. The gunsight of claim 1 wherein the icon position is located in a lower right quadrant of the first image if the selected one of the one or more heat signatures is located rearward and starboard of a reference heat signature.

7. The gunsight of claim 1 wherein the icon position is located in a lower left quadrant of the first image if the selected one of the one or more heat signatures is located rearward and portward of a reference heat signature.

8. The gunsight of claim 1 wherein the icon position is located proximate a right edge of the first image if the selected one of the one or more heat signatures is located starboard of a reference heat signature.

9. The gunsight of claim 1 wherein the icon position is located proximate a left edge of the first image if the selected one of the one or more heat signatures is located portward of a reference heat signature.

10. The gunsight of claim 1 wherein the icon position is located proximate an upper edge of the first image if the selected one of the one or more heat signatures is located forward of a reference heat signature.

11. The gunsight of claim 1 wherein the icon position is located proximate a lower edge of the first image if the selected one of the one or more heat signatures is located rearward of a reference heat signature.

12. The gunsight of claim 1 wherein the icon is a direction indicating shape.

13. The gunsight of claim 1 , wherein the circuitry further comprises a motion sensing module, wherein the one or more instruction sets include instructions configured to be executed by the one or more processors to further cause the gunsight to:

display a first image to the user, the first image corresponding to a first magnification;

receive a stream of motion signals from the motion sensing module;

detect a ballistic event based on analysis of the stream of motion signals; and

display a second image to the user in response to detecting of the ballistic event, the second image corresponding to a second magnification; wherein the first magnification is greater than the second magnification.

14. The gunsight of claim 1 , wherein the circuitry further comprises a motion sensing module, wherein the one or more instruction sets include instructions configured to be executed by the one or more processors to further cause the gunsight to:

determine a present orientation of the bore axis relative to a gravitational pull direction based on a stream of signals from the motion sensing module;

determine an orientation angle of the bore axis relative to a gravitational pull direction based on the stream of signals from the motion sensing module;

compare the orientation angle to a predetermined threshold value;

change an operating state of the display from a first brightness to a second brightness value if the orientation angle is greater than the predetermined threshold value;

wherein the first brightness is greater than the second brightness.

15. The gunsight of claim 14 wherein the display dims if the bore axis is moved to an angle of 45 degrees or more to a second orientation relative to a first orientation.

16. The gunsight of claim 1 , wherein the circuitry further comprises a motion sensing module, wherein the one or more instruction sets include instructions configured to be executed by the one or more processors to further cause the gunsight to:

display a first image based on image signals from the microbolometer;

receive a stream of motion signals from the motion sensing module;

detect a ballistic event based on analysis of the stream of motion signals; and

save a video file in the non-transitory computer readable medium in response to detecting the ballistic event, the video file corresponding to a timeframe, the timeframe spanning from a first time to a second time, the first time being earlier than the ballistic event and a second time being later the ballistic event.