What is Small Bore Imaging? What is the image of the hole?

Aperture imaging, a Chinese scholar Mo Zhai (Mozi) and his students, did the world's first experiment on the formation of inverted images of small holes, explained the reasons for the inverted image of small holes, and pointed out the nature of light along a straight line, and a similar theory had been summarized more than 2,000 years before Newton [1]. This is the first scientific explanation of the propagation of light along a straight line.

Use a plate with small holes to block between the wall and the object, and the reflection of the object will be formed on the wall, we call this phenomenon small hole imaging. When the middle plate is moved back and forth, the size of the image on the wall also changes, which illustrates the nature of light propagation in a straight line.

Chinese name. Imaging of small holes.

Foreign name. pinhole imaging

Presented by. Mozi.

Fields of application. Optics.

Applied Disciplines. Physics.

Imaging principles. Light travels in a straight line.

Image. The real image of the handstand.

Use a plate with a small hole to block between the screen and the object, and the inverted image of the object will be formed on the screen, which we call this phenomenon small hole imaging. Move the middle plate back and forth, and the size of the image will also change. This phenomenon reflects the nature of light rays traveling in a straight line.

Chinese name. Small hole imaging.

Foreign name. Keyhole Imaging Principle. Physics.

Imaging principles. Straight line propagation of light.

Image. The real image of the handstand.

Domains. Optics.

Aperture imaging is not convex lens imaging, it is a straight propagation of light. The circular spot is the inverted image of the sun formed by the image of the small hole.

Characteristics of the image formed by the imaging of small holes.

Aperture imaging is imaging based on the principle that light travels in a straight line.

I used to make a model when I was in school.

It is quite certain that the image and the object are upside down and upside down. The light emitted from the top of the object hits the underside of the phosphor screen through a small hole.

Since the image of the small hole is made up of actual light, it is a real image.

The characteristic is delay.

1.It looks like a real image.

2.The ratio of the image to the size of the object is (the distance from the hole to the imaging screen) divided by (the distance from the hole to the object).

3.The resulting image is the same as the size of the object.

4.It looks like it is upside-down and upside down (symmetrical to the center of the original object).

5.The smaller the hole, the clearer the image, but the brightness will be smaller.

What is the image of the hole?

The small hole is imaged into:

The real image of the handstand.

What is similar to the shape of the image formed by the image of the small hole.

You can prick several holes of different sizes and shapes on a piece of cardboard, with holes a few centimeters apart. At this time, on the white paper, there are several inverted images corresponding to the small holes. They are all the same size, but the degree of clarity varies, and the larger the hole, the less clear the likeness.

As long as the hole is small enough, its shape, whether it is square, round, or oblate, has no effect on the clarity of the image and the shape of the image.

An inverted image of a shape-shaped light source on the screen behind the aperture, if the light source is a candle, the image is an upside-down candle.

What is the small hole imaging made of.

The four blanks are filled in by the straight line propagation, upside down, solid, object size and distance respectively to tell you the characteristics are: 1It looks like a real image.

2.The ratio of the image to the size of the object is (the distance from the small hole to the imaging screen), except for the distance from the small hole to the object

3.The resulting image is the same as the size of the object.

4.It looks like it is upside-down and upside down (symmetrical to the center of the original object).

5.The smaller the hole, the clearer the image, but the brightness will be smaller. You can also take a look.

In the experimental judgment of aperture imaging, the image obtained is a standing image (fill: "positive", "inverted"; "imaginary", "real"); The screen distancing of imaging is small.

According to the textbook knowledge, the image formed in the experiment of aperture imaging is an inverted real image, and the image formed by the aperture is not only related to the distance from the image to the aperture, the closer the imaging screen is to the aperture, the smaller the image; So the answer is: pour; True; Small;

Imaging of small holes. Features: inverted, real image, the size of the image is related to the object distance and image distance.

Corresponding knowledge points: the linear propagation of light. Example: Bright round spots in the shade of a tree.

Principles of small hole imaging.

It is the use of light in the same uniform medium, without the interference of gravity, along a straight line, that is, the straight line propagation of light. Small hole imaging, about two thousand four or five hundred years ago, our scholar Mo Zhai.

That is, Mozi.

He and his students did the world's first experiment on the inverted image of the small hole, explained the reason for the inverted image of the small hole, and pointed out the nature of the linear progression of light. This is the first scientific explanation of the linear propagation of light.

The linear propagation nature of light has been widely used in the ancient astronomical calendar of China. Our ancestors made the Kei watch.

and sundials, which measure the length and orientation of the sun's shadow to determine the time, winter solstice, and summer solstice; A speculum is attached to an astronomical instrument to observe celestial phenomena and measure the position of stars.

Principles of small hole imaging.

Light travels in a straight line in the same homogeneous medium without being disturbed by gravity.

Concept of Small Bore Imaging:

About 24,500 years ago, a Chinese scholar Mo Zhai (Mozi) and his students conducted the world's first experiment on the formation of an inverted image of a small hole, explaining the reason why the small hole book was erected into an inverted image, and pointing out the nature of the linear progression of light. This is the first scientific explanation of the linear propagation of light.

Aperture imaging is a physical phenomenon that occurs because light travels in a straight line. One of the specific experiments was to use a plate with a small hole between the wall and the object, and the reflection of the object would be formed on the wall, and the size of the image on the wall would also change when the middle plate was moved back and forth. Regularity of small hole imaging:

1. As long as the hole is small enough, no matter what the shape of the hole is, it will not have much effect on the clarity of the image and the shape of the image.

2. The closer the image is to the hole, the smaller and brighter the image; Conversely, the larger and darker.

3. The closer the hole is to the candle, the larger and darker the image; Conversely, the smaller and brighter.

4. In the experiment of small hole imaging, the image is an inverted real image, and the size and clarity of the image are related to the above conclusions.

What is the image of the hole?

The small hole is imaged into:

The real image of the handstand.

What is the small hole imaging made of.

The four blanks are filled in by the straight line propagation, upside down, solid, object size and distance respectively to tell you the characteristics are: 1It looks like a real image.

2.The ratio of the image to the size of the object is (the distance from the hole to the imaging screen) divided by (the distance from the hole to the object).

3.The resulting image is the same as the size of the object.

4.It looks like it is upside down and upside down (symmetrical to the center of the original object)5The smaller the hole, the clearer the image, but the brightness will be smaller. You can also take a look at what is called "small hole imaging".

"Small hole imaging" is to use a plate with small holes to block between the screen and the object, and the inverted image of the object will be formed on the screen, we call this phenomenon small hole imaging. When the middle plate is moved back and forth, the size of the image on the screen also changes, which illustrates the nature of light propagating in a straight line.

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