| 摘要 |
An improved display provides information regarding a projectile trajectory so that a user is informed whether or not there is a clear shot. In some embodiments, an intermediate point in the projectile trajectory is an aiming point and is indicated in relation to the visualized target or target reference. The rangefinder device is calibrated to a weapon having a sight, for example, having a riflescope calibrated at 100 yards. The aiming point is displayed showing the intermediate point in the projectile trajectory that corresponds with riflescope cross hairs at a predetermined zero setting. The user places the riflescope cross hairs on the point visualized in the rangefinder device. Alternatively, the aiming point is displayed relative to the magnified image of the target, a generic reference image, or a user selectable reference images. |
| 主权项 |
1. A system for indicating a relative aiming point for a target, the system comprising:
a) a computing element for determining the projectile trajectory, b) a display having the relative aiming point and a reference having a predetermined reference height, c) a memory connected to the computing element, d) a housing containing the computing element, the display, and the memory, e) a range sensor for determining a first line of sight distance to the target, f) a tilt sensor for determining an angle to the target, g) at least one input on the surface of the housing, h) a lens for receiving an optical image of the target and at least one obstacle, and i) an eyepiece for viewing the display, wherein the display is connected to the computing element, wherein the range sensor, tilt sensor, and input are connected to the computing element, wherein the lens and eyepiece are connected to the housing, wherein the system is a handheld rangefinder device, wherein the relative aiming point indicates a height of the projectile trajectory at a predetermined intermediate range to the target, and wherein the relative aiming point corresponds to a sight or scope calibrated for the predetermined intermediate range to the target. |
