Types of 3d glasses

Anaglyph

This is the oldest format and has been around since at least the 1940's and use a method called Complimentary Colour Anaglyphs, this effectively screens out certain colours to each eye creating a 3D image. Anaglyph 3D Glasses can be used for print and photography as well as 3D films and 3D computer games.

There are many different types of anaglyph glasses, below i have listed all the kown formats. 

					Red/green
					Red/blue
					Red/Cyan
					anachrome
					mirachrome
					Trioscopic
					INFICOLOR
					ColorCode3d
					Magenta/cyan

Active

These glasses act as small LCD screens (shutter glasses), when a voltage is applied the lens goes 'dark' or shutter closes. Each eye sees a slightly different angle of the image and each lens being synchronised with the screen. The shutters open and close alternating between the two lenses. You will need active glasses which can cost between £50 and £150 to watch an active screen.
Active glasses deliver a higher resolution image, a superior image but the cost of the glasses reduces how many people can watch the screen at one time.

Passive

Polarisation is another form of viewing 3D video and the glasses work by filtering wavelengths of visible light to each eye. Passive glasses are very affordable , and are often branded with the client name or logo.
Passive glasses do not have the same high resolution viewing as the active screens but work well for large audiences and the obvious marketing benefits of the branding.