Why is the magnification of a 10x magnifier the same as a 30x magnifier?

This is because the magnifying glass is not used properly.

The magnification of the magnifying glass is proportional to the distance of the object, so two magnifying glasses with different magnifications will have the same magnification effect, but the clarity of the two is not the same. The magnification refers to the magnification at the focal length, which is when the image is at its sharpest.

How to use the magnifying glass.

1. Observation method 1, let the magnifying glass close to the object to be observed, the object of observation does not move, the distance between the human eye and the object of observation remains unchanged, and then move the hand-held magnifying glass to move back and forth between the object and the human eye until the image is large and clear.

2. Observation method 2: The magnifying glass is as close as possible to the eyes. The magnifying glass does not move, moving the object until the image is large and clear.

I think that your question itself is incorrect, and that you have been misled by unscrupulous merchants. Strictly speaking, the effect of 10 times or 30 times is definitely not the same. Is this common sense.

However, the so-called 10x and 30x magnifications on the Internet are all false labels by unscrupulous merchants. The maximum magnification of a single lens (which can be seen clearly and there is no obvious distortion at the edges) is not more than a maximum to survive.

Big brands, imported magnifying glasses, people are very sincere, the magnification indicated by people, the maximum is 3 times, 4 times, this multiple is more reliable. And everyone is aspherical lenses, of course, ** is also more expensive, basically 100 open.

If it is a spherical lens, it may reach 10 times in a very small area, but the edge image is distorted very much, and the effect is miserable, can this be used?It is precisely the vast majority of the lenses of these unscrupulous merchants that are spherical. You can label him a fake hat, right?

So, don't be misled, spend a little more money and buy a reliable one that doesn't exceed 4 times.

Of course, if you want more than 10 times, then you have to buy a multi-lens microscope. No way, a single lens can't achieve such a large magnification.

Purely personal understanding. Look high and finger straight.

It may be that the pattern is the same, 10x magnification and 30x magnification, but it is bigger, and the pattern is the same.

Focusing on imaging problems, middle and high school textbooks have them, but at the same height, I think there is always one that is not so clear, right?It is impossible to touch the same, unless there is a problem with the quality.

Summary. 1. Magnifying glass with a magnification of less than 10 times. This kind of magnifying glass is generally small and carryable, can be used for the elderly to magnify and read books and newspapers with more than a magnifying glass, the general mirror diameter is about 5cm, and the magnification of the largest single-layer mirror is 15 times.

This kind of magnifying glass is generally used for the elderly to read books and newspapers, or to observe small objects using -40 times the magnifying glass, the general mirror diameter is about about the same, this magnifying glass has been used in the professional industry, such as for identifying coins or precision maintenance. This kind of magnifying glass is no longer suitable for the elderly to read books and newspapers -100 times the magnifying glass, which can already be called a microscope. This kind of multiplier mirror has a small diameter and a small focal length, and can only observe a small local area, which is generally used in laboratories and other places.

1. Magnifying glass with a magnification of less than 10 times. This kind of magnifying glass is generally small and carryable, and can be used for the elderly to magnify and read books and newspapers, and the magnifying glass diameter of the magnifying glass is about 5cm, and the magnification of the largest single-layer mirror is 15 times. This kind of magnifying glass is also used for the elderly to read books and newspapers, or to observe small objects using -40 times the magnifying glass, the general mirror diameter is about the same, this magnifying glass has been used in the professional industry, such as to identify coins or precision maintenance.

This kind of magnifying glass is no longer suitable for the elderly to read books and newspapers -100 times the magnifying glass, which can already be called a microscope. This kind of multiplier mirror has a small diameter and a very small focal length, and can only observe a small local area, which is generally used in laboratories and other places.

If my answer is helpful to you, please give a thumbs up (comment in the lower left corner), I look forward to your Shiwei praise, your efforts to raise your hands are very important to me, and your support is also the motivation for me to improve Shanyin. Finally, I wish you good health and a good mood! <>

3 million times or so. Today's optical microscope is the kind of telescope that is classic and traditional to look at bacteria, and the magnification can only reach 1600 2000 times, not to mention the atoms, even viruses cannot be seen. Because the resolution of optical telescopes is only 200 300nm, the size of the virus is generally between tens and 100nm; And the atomic size is there, and it is even more invisible.

Precautions for electron microscope maintenanceFine-tuning is a delicate and easily damaged component in the microscope mechanism, and it cannot be screwed after it is screwed to the limit. At this time, it must not be forced. Otherwise, it is bound to be damaged.

When focusing, in this case, you should return the fine adjustment to 3 to 5 turns, reuse the coarse adjustment focus, and then use the fine adjustment after the first sight of the object.

If the fine-tuning can be adjusted to the middle position in advance (generally the position mark "-=when the single line on the micro-dovetail" is engraved on the side of the micro-dovetail "-=when the single line on the micro-dovetail is facing the middle of the two horizontal lines, the fine-tuning is in the middle position), so that there is roughly equal adjustment margin in both directions, of course, it is better.

1. The magnification of the magnifying glass is related to the focal length.

In order to see tiny objects or details of objects, it is necessary to move the object closer to the eye, which can increase the angle of view and create a large real image on the retina. But when the object is too close to the eye, it is impossible to see clearly. In other words, it is necessary to be discerning, not only to have a large enough angle of the object to the eye, but also to take the appropriate distance.

This is where the change in focal length comes in.

2. The thickness of the magnifying glass will change the focal length.

The common magnification of a single-lens magnifier is less than 10 times, and the common magnification of a double-lens magnifier is less than 20 times.

Now take the convex lens as an example to calculate its magnification ability. Place the object pq between the object focus of lens l and the lens and bring it close to the focal point, as shown in Figure 2-20(a), so that the object passes through the lens into an magnified virtual image p q. If the focal length of the image square of the convex lens is 10 cm, the magnifying power of the magnifying glass made of the lens is doubled.

If you only consider the magnification ability, the focal length should be shorter, and it seems that this can get arbitrarily large magnification ability. However, due to the existence of aberrations, the magnification ability generally used is about 3. If a double magnifier (e.g. eyepiece) is used, aberrations can be reduced and magnification can be achieved to 20 .

The difference between magnifying glass 10x and 30x is the problem of focusing imaging, not that the larger the magnification, the clearer the thing to see, but also to see it imaged. However, a 10x magnifying glass is sufficient to identify jadeite jade, while a 30x magnifying glass is used as a microscope for medical purposes. Through the above introduction, I believe you already know the gap between the two, I don't know if you understand the gap between the two?

It is related to curvature and radius. The larger the radius, the greater the magnification. The higher the curvature, the greater the magnification, but too much curvature will affect the image. In addition, it is also related to distance, the farther the distance, the greater the magnification, provided that you can see clearly, too far away will be blurred.

Magnifying glass is a kind of use of a convex lens, which is to make the object distance less than the focal length, and obtain a magnified virtual image. When the object distance changes, the image distance also changes, and the law is: 1 object distance + 1 image distance = 1 focal length.

For the use of magnifying glass, it is also stipulated that the magnification of the image at the photopic distance (25 cm) is the magnification of this magnifying glass. So the following formula can be derived: magnification = 1 + 25 fwhere f is the focal length and the unit is centimeters.

Using the above formula, it can be calculated:

magnifying glass, focal length f=cm;

2. Magnifying glass with a focal length of 2cm, the magnification is multiple.

In addition, it is recommended that when making a self-made astronomical telescope, the aperture should be as large as possible when choosing an objective lens, with a focal length of more than 50 cm; There is no limit to the size of the aperture of the eyepiece, and the focal length is about 5 cm.

Magnifier Definition: Magnifier: A simple visual optical device used to observe the tiny details of an object, and is a converging lens with a focal length much smaller than the photopic distance of the eye. The size of an object imaged on the retina of the human eye is proportional to the angle (angle of view) of the object to the eye.

The greater the convexity, the greater the magnification.

This kind of magnified image is like a virtual image, and cannot be imaged on the screen. And make sure that the object you want to magnify is within the focal length of the magnifying glass.

The magnification of the magnifying glass is related to its curvature, according to our conventional understanding, the more drummed the better, the flatter and smaller.

The longer the objective, the shorter the eyepiece, the closer the objective to the slide, and the greater the magnification.

The magnification of the magnifying glass is different magnification and the degree of convexity of the mirror is related to the convexity of the mirror, the greater the magnification.

The magnification of the magnifying glass is different, the magnification is related to the convexity of the mirror, the greater the convexity, the greater the magnification.

Hello, I am glad to serve you and give you the following answer: 3 10x magnifiers are 1000x magnification. Workaround:

1.First of all, to use 3 ten-fold magnifiers, you need to prepare 3 ten-fold magnifiers and put them together. 2.

Then, place the object in the center of the magnifying glass, and use 3 ten-fold magnifying glasses to magnify the missing jujube pose by 1000 times. 3.Finally, adjust the position of the magnifying glass so that the object is clearly visible for a clearer image.

Personal tip: Use 3 10x magnifiers to magnify 1000x, but pay attention to the position of the magnifying glass to get a clearer image of Iwate. In addition, pay attention to the cleanliness of the magnifying glass, so as not to affect the observation effect.