The sniper starts from the bright sword escape period

Chapter 223 Kepler Scope

Bailixiu's wait did not last long. On the third day, Bailixiu waited for the invitation to go to the scope manufacturing factory to guide the manufacture of scopes.

In fact, the biggest difference between a scope and a telescope is that there is an adjustable crosshair in the middle of the scope.

The crosshair is formed by a cross wire set at the focal plane of the objective lens. The square frame with the wire is pulled by the vertical and horizontal screw rods, and can move up and down or left and right in the guide rod, so turning the screw rod can install The aiming angle of the scope is fixed or the aiming point is corrected sideways.

It’s just that this kind of cross with metal wire travel is still more troublesome, so I changed the metal wire into a differentiation baffle. Its aim is formed by the engraved lines on the differentiation baffle. The division center is the T that is disconnected at the intersection. The shape of the letter will not block the observation of the target.

Of course, this is just the method of manufacturing scopes during World War II, and the scopes of this period are basically fixed magnification scopes, so it is relatively simple from a structural point of view.

What is more complicated is the manufacturing method of scopes in Bailixiu's era. The scopes of that era incorporated a lot of electronic technology, so the scopes not only have laser ranging functions, ballistic display functions, infrared night vision functions, etc. Basically, the functions that are beneficial to snipers are integrated into a small scope by powerful electronic capabilities.

Therefore, the scopes of the era before Bailixiu traveled were all equipped with batteries to provide energy for the electronic equipment on the scope.

The manufacture of scopes is relatively easy. After all, telescopes can be manufactured, so scopes are naturally not that difficult, and after Bailixiu's explanation above, the above also understands the role of scopes in sniper warfare. It can play a role, so I also found a scope for the masters of the newly established scope factory to observe and disassemble.

So on the third day under the manual processing of the master craftsmen, a purely hand-made domestic Kepler scope was freshly released.

The Kepler-type sight is actually a monocular telescope. This telescope is composed of two convex lenses. The imaging focal points of the two lenses coincide with each other. A reticle is placed between the focal points of the two convex lenses. In this way, When people see a distant target through a telescope, the reticle in the middle of the imaging focus can just press on the target and play a role in aiming.

Optical sights are generally based on the Kepler-style optical principle.Two concave lenses interact with each other.When the focal points of each two lenses coincide with each other, a magnified image of a distant object appears in the human eye.Generally speaking, the magnification of imaging is divided by the angle between the focal length of the objective lens and the angle between the focal length of the eyepiece.

Generally speaking, put a cross reticle in the telescope, and place the position of the reticle at the focal point of the objective lens and the eyepiece. At this time, the imaging of the object and the imaging of the reticle will appear in the human eye at the same time. .

That's how scopes work.Military rifles, machine guns and most scopes all work on this principle.

The function of the relay mirror group is to convert the distant image into an upright one.Because of Kepler's mirror, the imaging is a standard inverted and left-right inverted image.Without the mirror, the scope work would be impossible.

Describe the working process of the scope in simple words:
If there is a deer in front of our scope, the objective lens of the scope will focus the distant deer on the reticle using the principle of lens imaging, and the imaging focus of the eyepiece will also precisely coincide with the reticle.

When the focal point of the eyepiece, the imaging point of the objective lens, and the reticle converge precisely on a plane, precise aiming is formed.

This is how the Kepler optical sight works.After World War I, all the military scopes and civilian scopes in the world use this principle to work. Of course, in the actual scope, there is also a mirror group inside, which is used to convert the imaging of the object from the inverted image to the positive image.

As for why Bailixiu chose to use the Kepler-style scope instead of the simpler and easier-to-produce Galileo-style scope!
After all, Bailixiu used Galileo-style scopes in Bright Sword World before. Compared with Kepler scopes, this kind of Galileo scopes are very easy to manufacture. After all, only a pair of concave-convex mirrors is required.

The Kepler sight not only needs a pair of convex mirrors but also needs to add a positive image conversion system.

Moreover, the monocular sight cannot rely on a reflective prism to correct the inverted image like a telescope, and can only continue to rely on a convex mirror to convert the inverted image.

As a result, high-magnification scopes are basically long-barrel monsters, and this phenomenon is still the case with modern scopes.

After all, everyone who has played chicken knows that the quadruple mirror and the double mirror are short and lean, but when it is the turn of the [-]x mirror or the [-]x mirror, it becomes a long one.

The reason for this is mainly due to the installation of positive mirrors.

However, even so, Bailixiu still chose the Kepler scope, because the Kepler scope has a point that cannot be ignored compared to the Galileo scope, that is, because the Kepler scope has a real image focus, it can Add a reticle at the focal point.

This is the crosshair dividing board, so that snipers only need to lightly adjust the knob of the dividing board to adjust the crosshairs, so that their crosshairs can aim at targets hundreds of meters away or even thousands of meters away.

After all, anyone who has watched sniper movies knows that when sniping at a long distance, wind speed and distance are important reference factors for long-distance sniping.

Then the sniper only needs to add these factors and then twist the knob to adjust the crosshair to the proper position for sniping.

Instead of raising the crosshair to a few meters above the target before sniping.

The most typical example is when Bai Lixiu sniped the cavalry commander named Kuroshima Morita who killed the little devil in the world of swords, because he used a Galileo scope, so there was no way to adjust the crosshairs, so he could only align the crosshairs. Only 11 meters above the head of Kuroshima Morita can he hit Colonel Kuroshima Morita.

If the eight-fold scope used by Bailixiu at that time was not a simple Galileo-type scope, but a regular scope with a differentiation plate like the one in Chiji.

Then you only need to turn the crosshair adjustment knob slightly, which is the crosshair reticle, then you can directly align the crosshair with Kuroshima Morita.

But there was no way around it. After all, when Bailixiu crossed over, the battlefield was surrounded by little devils!
There is time to make such a sophisticated Kepler scope, and in such a short time, a simple Galilean scope is already very good.

Ps: Since there are no illustrations, it may not be possible to explain the principle of the scope with words alone, so military enthusiasts who are interested in this can check the internal structure of the Kepler scope by themselves.

(End of this chapter)