Light sources Light sources are crucial in infrared photography. Your choice of light source can have a big effect on the pictures you take.
Sunlight As a light source, the sun is the primary source of infrared light. It emits visible light, infrared light and ultraviolet light.
The Dutch astronomer Huygens proposed a wave theory of light. He believed that light was a longitudinal wave, and that this wave was spread through a material called the aether. Since light can pass through a vacuum and travels very fast Huygens had to propose some rather strange properties for the aether: for example; it must fill all space and be weightless and invisible.
Spectrum Triangle
White light can be split up to form a spectrum using a prism. This is a block of glass with a triangular cross-section. The light waves are refracted as they enter and leave the prism. The shorter the wavelength of the light the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most, causing the coloured light to spread out to form a spectrum.
White light can be split up to form a spectrum using a prism. This is a block of glass with a triangular cross-section. The light waves are refracted as they enter and leave the prism. The shorter the wavelength of the light the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most, causing the coloured light to spread out to form a spectrum.
This photo shows the spectrum triangle using a prism.
Light
In this photo we made the room all dark and we got a torch we drew something and we took a photo at the shutter speed of 15 and after the photo gets it self together and and creates the image we've done for 15 seconds.