Automatic laser rangefinder and method of automatically activating the laser rangefinder to measure distance
AssigneeAsia Optical Co., Inc.
InventorJung-Ching Wang
Life of this patent
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Abstract
The present invention provides a laser rangefinder and a method of activating the laser rangefinder to measure distance. The laser rangefinder has a first sensing to sense whether the user is aiming the laser rangefinder at a target and a second sensing device to sense an acceleration of the laser rangefinder and the acceleration has to be smaller than a preset value. The laser rangefinder will be automatically activated to measure distance when both of the first sensing device and the second device are checked.
Claims12
A method of automatically activating a laser rangefinder, wherein the laser rangefinder has a case and an aiming window on the case for a user aiming the laser rangefinder at a target, comprising the steps of:
- (a). sensing (1) whether the user's eye is close to the aiming window, and (2) an acceleration of the case;
- and
- (b). activating the laser rangefinder when the user's eye is close to the aiming window, and the acceleration of the case is smaller than a preset value.
A laser rangefinder, comprising:
- a case having an aiming window for a user aiming the laser rangefinder at a target;
- a first sensing device sensing whether the user's eye is close to the aiming window and generating a first signal when senses the user's eye is close to the aiming window;
- a second sensing device sensing an acceleration of the case;
- a processor generating a second signal when the acceleration sensed by the second sensing device is smaller than a preset value;
- a measuring device emitting a laser ray to the target to measure a distance between the target and the laser rangefinder when the measuring device receives both of the first signal and the second signal;
- and
- a display device showing a result of measurement of the measuring device.
A laser rangefinder, comprising:
- a case having an aiming window for a user aiming the laser rangefinder at a target;
- a first sensing device sensing whether the user's eye is close to the aiming window and generating a first signal when senses the user's eye is close to the aiming window;
- a second sensing device sensing an acceleration of the case;
- a processor generating a second signal when the acceleration sensed by the second sensing device is smaller than a preset value and the processor receives the first signal from the first sensing device;
- a measuring device emitting a laser ray to the target to measure a distance between the target and the laser rangefinder when the measuring device receives the second signal from the processor;
- and
- a display device showing a result of measurement of the measuring device.
A laser rangefinder, comprising:
- a case having an aiming window for a user aiming the laser rangefinder at a target;
- a first sensing device sensing whether the user's eye is close to the aiming window and generating a first signal when senses the user's eye is close to the aiming window;
- a second sensing device sensing an acceleration of the case when receives the first signal from the first sensing device;
- a processor generating a second signal when the acceleration sensed by the second sensing device is smaller than a preset value;
- a measuring device emitting a laser ray when the measuring device receives the second signal from the processor;
- and
- a display device showing a result of measurement of the measuring device.
A laser rangefinder, comprising:
- a case having an aiming window for a user aiming the laser rangefinder at a target;
- a first sensing device sensing whether the user's eye is close to the aiming window and generating a first signal when senses the user's eye is close to the aiming window;
- a second sensing device sensing an acceleration of the case;
- a processor generating a second signal to activate the first sensing device when the acceleration sensed by the second sensing device is smaller than a preset value;
- a measuring device emitting a laser ray when the measuring device receives the first signal from the first sensing device;
- and
- a display device showing a result of measurement of the measuring device.
Dependencies are inferred from the claim text.