All Textbook Topics - Light - Pin-hole cameras - The pinhole causes the image to be upside down on the screen as light travels in straight lines and the light coming from the top ends up at the bottom (and vice-versa)

The pinhole causes the image to be upside down on the screen as light travels in straight lines and the light coming from the top ends up at the bottom (and vice-versa)

Light from the top of the object arrives at the bottom of the screen, and light from the bottom of the object arrives at the top of the screen. This happens because the light rays cross over at the pin-hole, causing the image to be inverted.

This diagram demonstrates this effect:

This photo shows two torches in front of the pin-hole camera, and the image of the torches inverted on the screen:

Here are two photos taken of an image on a pin-hole camera screen, the images are inverted, so you need to think upside down to see the images:

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The image on a pin-hole camera diagram must be drawn on the screen
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