1. How does the optical sight achieve the magnification target?
The vast majority of optical sights use the Kepler telescopic system, which consists of a convex lens as the objective lens, 2 erecting lenses as the central lens, a split plate wire, and 2 eyepieces. The image it forms is an inverted image after the erect lens. Then it is transformed into a positive image in the human eye through the eyepiece. Using the Kepler telescopic system can see the details of objects more clearly, and increase the ability of long-distance human eyes to observe long-distance targets.
2. What is a differentiation plate? Is the reticle aiming a differentiation board?
The differentiation board is a combination of metal wires with crosshairs or other functions such as distance measurement and lead measurement.
3.What is the function of the lens coating of the scope? How many coating methods are there? How are they different? If the eyepiece also adopts multi-layer coating, does it mean it is more advanced?
Coating is a technical treatment to prevent the damage caused by the reflected light of light to the impact. Excellent coatings are often chemically treated, so that the coated film is not easy to wipe off, and the coating looks natural and soft. According to the process, the coating is divided into single-layer coating and multi-layer coating (MC) in the optical sight. Single-layer blue coating is the most common coating for optical sights, and there are also a few high-quality products that use multi-layer coating. Multi-layer coating can better reduce the reflectivity of various wavelengths of light on the lens, so as to improve the color reproduction of the overall scope. The easiest way to distinguish is; the reflection of single-layer coated lenses under sunlight presents a single color. The multi-layer coated lens presents soft reflections of various colors under different positions and angles (different from the bright red and green things like the Daxing Russian telescope on the street).
4. How to measure the quality of the lens?
The most intuitive way is to compare the resolution (that is, clarity) of the lenses. The better the lens, the higher the clarity, especially when comparing the resolving power of different quality scopes in long-distance or dim light conditions.
5. How to measure the quality of the scope?
In addition to the resolving power of the lens and the difference in color reproduction, the quality of the optical sight is also reflected in the surface processing technology; often the better the gun sight, the more attention is paid to the appearance technology, and sanding and other processes are often used, especially It is from the 3-9 red light lighting series. It is neither slippery nor sticky to the touch, and feels very good! In addition to the above, the most important thing is that the scope must be able to withstand the impact of the recoil of the weapon, and the change of the axis of the scope under the impact must be within the required range!
6. What is the appropriate magnification of the scope? Is there any fixed ratio between multiples and distance?
The larger the magnification, the smaller the field of view of the scope, which is not suitable for quickly capturing the target. If you use a large magnification at close range, it will be difficult to find the target at once. Generally speaking, when using a gun sight within a distance of 100 meters, 4 times is a common magnification, and if you use it, 3-6 times the range is enough. However, if it is used in medium and long distances, it can use a multiple of a large magnification, and it can even be 24 times depending on the situation. Theoretically, the higher the magnification, the stronger the accuracy, but the high magnification gun sights have complex technical requirements to achieve accuracy. The cost is also significantly increased! There is no special regulation that must say how far the x magnification must be applicable. It depends entirely on environmental factors (because the magnification The bigger it is, the less the illumination of the gun sight and the smaller the field of view. If the ambient light is not strong and the distance is far, but the gun sight with a particularly high magnification is still used, it will be difficult to observe!) It depends on personal habits !
7. What is exit pupil distance? Does the optical sight have exit pupil distance?
In the most intuitive language; there is a light hole in the optical sight system, and only the naked eye can see the formed image when entering the light hole, and the clearest full-screen imaging can only be seen when entering the light hole at a certain distance. This distance is the exit pupil distance. Any optical observation equipment has an exit pupil distance. The difference is that the exit pupil distance of the telescope of the Galileo telescopic system can generally be attached to the eyepiece with the naked eye, while the optical sight of the Kepler telescopic system is used to prevent weapons from recoil aiming. The mirror hurts the user's naked eyes, so the exit pupil distance is a certain distance away from the eyepiece. There are a small number of military gun sights with goggles. This goggle prevents the external light from distracting the user's attention, and also plays a role in fixing the exit pupil distance (that is, the distance between the eyes and the eyepiece when the goggle is attached is the designed distance. exit pupil distance)