Miniature cameras - simple concept, small camera containing images

pinhole can invent the simplest type of camera ever, and there is time. These cameras are used for art, entertainment, science and monitoring. You probably have one or know someone who does not. But have you ever thought about the mechanism behind a pinhole camera?

The device is not typical

The pinhole is not a function of traditional cameras and you are used both in its form. Rathertypical camera bag, a pinhole camera using a light-tight box - matchboxes and cereal boxes do. And instead of conventional glass lenses are very, very small hole so big it caused by a PIN.

But do not underestimate the cardboard cameras. Indeed, the results are impressive and sophisticated works of art. The images are only available after the exposure is much better than a normal camera, it is. Blando and crispAt the same time, and the images have an almost infinite depth of field.

Simple concept

This simple device that works well on a simple principle: Optica pin. One side of the box has a small hole. The light from outside the box goes in the hole and the image formed by the camera to one side.

To help you better understand the concept, imagine a big black box. On one side of the room is a small hole and out of the room is a friendKeep a flashlight. Now, this friend of the torch shines through the pinhole, at different angles.

Imagine the wall opposite the hole. This is a small dot is created by the beam of light shone through the hole. As your friend moves the torch, there is little even move the wall.

Now imagine taking this big box and display it in your garden. On the wall opposite the hole, is inverted mirror image of the landscape. Each pointGarden and the beam emits light emitted from the point through the hole, so that the corresponding number of light on the opposite wall.

Each point in the landscape is the output (light through the hole, and reflects on the wall) at a time, so that the entire image is created on the wall.

The largest of the scene and automatically through the hole is a longer process. It also means better results. The image is of courseare tenuous, the hole is very small.

small camera

The pinhole is used in real sizes. But still, it is much smaller than the image above. And instead of a bare wall outside the door, a dark room makes the use of a type of film. The film, which is against the wall, light or image that passes through the hole.

The device creates, with a beautiful view of the fire scene, where aSet the camera. The exposure time is usually half a second to several hours, much longer exposure time of the usual conventional camera. This is because the hole can pass the light at the point but the result is worth waiting for.

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