Spotting scope with integrated laser rangefinder and related methods
An optical instrument, such as a spotting scope, is provided. The optical instrument may include a range finder configured to calculate or otherwise determine a distance between the optical instrument and an identified object. The optical instrument may also include a display and a user interface. In some embodiments, an operation system associated with the optical instrument may include sensing touchless gestures. For example, hand gestures or eye gestures may be used to navigate a user interface, to actuate the laser range finder, to alter the brightness of a display, or to carry out any of a number of other operational commands.
1. An optical instrument comprising:
an objective system;
an eyepiece including an ocular system, the objective system and the eyepiece defining a first optical path wherein visible light from a scene view is passed through the objective system and through the eyepiece;
a first mirror;
a laser transmitter spaced from the first optical path and configured to transmit a laser beam toward an object in the scene view;
a receiver positioned behind the first mirror, wherein the first mirror is configured to redirect the visible light received from scene view passing through the objective system but permit passage of laser light reflected from the object to the receiver.
2. The optical instrument of claim 1 , wherein an optical axis of the ocular system is arranged at acute angle relative to an optical axis of the objective system.
3. The optical instrument of claim 1 , wherein the receiver comprises an avalanche photodiode.
4. The optical instrument of claim 1 , wherein the first mirror includes a dichroic coating.
5. The optical instrument of claim 4 , wherein the laser exhibits a wavelength of approximately 905 nanometers.
6. The optical instrument of claim 1 , further comprising a second mirror, wherein the second mirror redirects visible light from the first mirror to the ocular system.
7. The optical instrument of claim 6 , further comprising a reticle aligned with a transmission of the laser beam from the laser transmitter.
8. The optical instrument of claim 7 , further comprising a display viewable through the eyepiece and indicating a distance between the optical instrument and the object in the scene view when the object is aligned with the reticle.
9. The optical instrument of claim 7 , wherein the reticle is illuminated upon actuation of the laser transmitter.
10. The optical instrument of claim 1 , further comprising a magnification ring associated with the eyepiece configured to alter an amount of magnification of the scene view.
11. The optical instrument of claim 1 , further comprising a housing, wherein the objective system, the ocular system, the first mirror, the laser transmitter and the receiver are located within the housing, wherein the housing is mounted to a tripod.
12. An optical instrument comprising:
an objective system;
an eyepiece including an ocular system, the objective system and the ocular system defining a first optical path wherein visible light from a scene view is passed through the objective system and through the eyepiece;
a transmitter configured to transmit a signal through at least one of the objective system and the eyepiece;
a sensor configured to receive a first response signal through at least one of the objective system and the eyepiece, the first response signal being based on a first gesture of the user interacting with the transmitted signal;
a processor configured to activate or deactivate a laser beam of a rangefinder responsive to the sensor receiving the first response signal.
13. The optical instrument of claim 12 , wherein the response signal is based on an eye gesture.
14. The optical instrument of claim 12 , wherein the response signal is based on a hand gesture.
15. The optical instrument of claim 12 , wherein the sensor is configured to receive a second response signal through at least one of the objective system and the eyepiece, the second response signal being based on a second gesture of the user interacting with the transmitted signal; and
wherein the processor is configured to alter an operational parameter of the optical instrument.
16. The optical instrument of claim 15 , wherein the operational parameter includes navigation of a user interface.
17. The optical instrument of claim 15 , wherein the operational parameter includes altering the brightness of a display.
18. The optical instrument of claim 12 , further comprising a housing, wherein the objective system, the ocular system, the first mirror, the laser transmitter and the receiver are located within the housing, wherein the housing is mounted to a tripod.
19. A method of operating an optical instrument having a range finder, the method comprising:
effecting a touchless gesture adjacent a portion of the optical instrument;
sensing the touchless gesture;
activating or deactivating a laser beam of the range finder responsive to the sensed touchless gesture.
20. The method according to claim 19 , wherein the touchless gesture includes a hand movement, an eye movement or an eyelid movement.
21. The method according to claim 19 , further comprising:
effecting a second touchless gesture adjacent a portion of the optical instrument;
sensing the second touchless gesture; and
responsive to the sensed second touchless gesture, changing an operational parameter of the optical instrument including at least one of the group consisting of: navigating a user interface of the optical instrument and altering a level of brightness of a display.