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optics.jpg (6237 bytes)   

Ray diagrams

The types of images formed by lenses vary and is dependant on the distance it is placed from its optical centre. The characteristics of the image forms have great uses in numerous optical instruments.

rd1.jpg (13394 bytes)

Image Real, Inverted and diminished
Uses Telescope

rd2.jpg (15464 bytes)

Image Real, inverted and diminished
Uses Camera

rd3.jpg (15280 bytes)

Image Real, inverted and same size
Uses Photocopier (Same size as object)

rd4.jpg (16243 bytes)

Image Real, inverted and enlarged
Uses Photograph enlarger

rd5.jpg (16470 bytes)

Image Real, inverted and enlarged
Uses Photohraph enlarger, Projector

rd6.jpg (15818 bytes)

Image Virtual, upright and enlarged
Uses Magnifying glass