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  moving red dot sighting deviceUSPTO Application #: 20070180751Title: moving red dot sighting device Abstract: Improved “moving red dot” sighting device, characterized in that it comprises a fixed light source (4) and a reflecting blade (17), whereby the light source (4) produces a collimated light beam (5) which is projected onto the reflecting blade (17) so as to obtain a red dot or reticle which is visible to the shooter thanks to the reflection on the reflecting blade (17), whereby the beam (5) is projected onto the reflecting blade (17) by means of a rotating mirror (9) whose inclination angle (B) in relation to the light beam (5) can be adjusted. (end of abstract) Agent: - , Inventor: René Joannes USPTO Applicaton #: 20070180751 - Class: 042113000 (USPTO) Related Patent Categories: Firearms, Implements, Sight Devices, Target Spot Or Dot Superimposed On Sight The Patent Description & Claims data below is from USPTO Patent Application 20070180751. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The invention concerns a "moving red dot" sighting device. [0003] One of the most frequently used types of sighting devices for firing arms applies what is called the red dot technique, which consists in projecting, through the sighting optics, a light point, or more generally a light reticle, in such a manner that the shooter only has to align this point visually with the target so as to fire precisely without any parallax error. [0004] Traditionally, we talk of a "red dot" to indicate the light reticle used in this type of sighting device. [0005] The actual color of the reticle may vary, provided it is visible. [0006] Moreover, the red dot is not necessarily a dot. [0007] In what follows, the term "red dot" will thus be used in the broad sense to indicate the light reticle, whereby the sighting device can use any visible light source whatsoever and any form of reticle. [0008] 2. Discussion of the Related Art [0009] Applying the so-called red dot technique to the firing of ammunitions that have a non-flat ballistic trajectory, as is the case when firing grenades, requires the realization of a moving red dot whose height must be adjusted as a function of the distance of the target, such that the shooter obtains the correct elevation of his fire arm by aligning the displaced dot with the target. [0010] What makes it difficult to realize a sighting device with a moving red dot is that the range and angular resolution required for firing grenades up to several hundred meters require expensive and sizeable devices. [0011] The so-called "moving red dot" sights with which have been introduced so far for firing ammunitions with a curved trajectory are usually based on the use of an LCD screen or a series of LEDs placed in the focal plane of a lens, whose moving image is superimposed in the sighting field of the shooter by a system of fixed mirror or prism and a beamsplitter. [0012] Given the elevation angle to be covered, for example of more than 30.degree. in the case of a low-velocity grenade, and the required angular resolution, such a system takes up tens of millimeters in width and in height, which is quite bulky. [0013] A disadvantage of such a bulky sighting device is that it is not very appropriate to be used on an individual light fire arm. [0014] Another disadvantage of such a sighting device is that, when it is placed on the upper rail of a gun, it is usually not compatible with the use of an external scope and it cannot be used when aiming with two eyes open. [0015] Yet another disadvantage is that the existing sighting devices of this type are usually not fully ambidextrous. SUMMARY OF THE INVENTION [0016] The invention aims to remedy one or several of the above-mentioned disadvantages and to provide an improved sighting device with a moving red dot which is compact and which can be used on an individual fire arm. [0017] This aim is reached according to the invention by an improved "moving red dot" sighting device, comprising a fixed light source and a reflecting blade, whereby the light source produces a collimated light beam which is projected onto the reflecting blade so as to obtain a red dot or reticle visible to the shooter thanks to the reflection on the reflecting blade, whereby the beam is projected onto the reflecting blade by means of a rotating mirror whose inclination angle in relation to the light beam can be adjusted. [0018] In order to aim at a target, the shooter observes the target while searching the right elevation for his fire arm at which the red dot is aligned with the target, which is a sign that the fire arm is situated in the right firing position. [0019] The shooter can aim with two eyes open by observing directly the target with the non-aiming eye and the red dot projected onto the blade with the aiming eye. [0020] However, the reflecting blade is preferably a semi-transparent beamsplitter plate, which enables the shooter to observe the target as well as the red dot through the beamsplitter with the aiming eye, while the shooter can also aim with two eyes open, whatever he prefers. [0021] The sighting device preferably comprises a device to adjust the inclination angle of the rotating mirror in relation to the light beam, which makes it possible to adjust the sighting device by adjusting the angle of the mirror as a function of the distance of the target and the type of ammunition. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading... Full patent description for moving red dot sighting device Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this moving red dot sighting device patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like moving red dot sighting device or other areas of interest. ### Previous Patent Application: Long gun stock Next Patent Application: Active artificial fishing lure and method of using same Industry Class: Firearms ### FreshPatents.com Support Thank you for viewing the moving red dot sighting device patent info. 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