Optical Devices & Lenses
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- Article no:P1069200The Galilean telescope
- Article no:P1069300Determining the magnification of a telescope
- Article no:P1069400The camera
- Article no:P1069500The depth of focus of a camera
- Article no:P1069600The slide projector
- Article no:P1105500The magnifying glass
- Article no:P1105700The astronomical telescope
- Article no:P1105800The Newtonian reflecting telescope
- Article no:P1105900Herschel's reflecting telescope
- Article no:P1105600The camera
- Article no:P1066700Mode of operation of the human eye (normal vision)
- Article no:P1066800Short-sightedness and its correction
- Article no:P1066900Long-sightedness an its correction
- Article no:P1067000Defective accommodation in old age and its correction
- Article no:P1105200Structure and function of the human eye
- Article no:P1105300Short-sightedness and its correction (myopia)
- Article no:P1105400Long-sightedness and its correction (hyperopia)
- Article no:P2210202Laws of lenses and optical instruments