Virtual and real images.
Converging lens - object less than fo...
Concave mirror - object less than foc...
Lens equation
Magnification
Table of Opticks, 1728
Angel of incidence
Top: The formation of a real image us...
Top: The formation of a virtual image...
The focal point F and focal length f ...
Reflections in a spherical convex mir...
A convex mirror diagram showing the f...
Ray diagram for a convex mirror
A concave mirror diagram showing the ...
Ray diagram - concave mirror - object...
Concave mirror, object distance great...
Concave mirror, object distance equal...
Concave mirror, object distance betwe...
Concave mirror, object distance less ...
Convex mirror
Illustration for concave mirror problem
This sculpture has both convex and co...
Derivation of the ray matrix of a sph...
Lensmaker equation
Radii of curvature of converging lens
Radii of curvature of diverging lens
A lens.
Types of simple lenses
Positive (converging) lens
Convex lens
Negative (diverging) lens
Concave lens
The cardinal points of a thick lens i...
Rays with the same angle cross at the...
Angle filtering with an aperture at t...
N, N' The front and rear nodal points...
Ray diagram - converging lens - obje...
Ray diagram - diverging lens
Converging lens, object distance grea...
Converging lens, object distance equa...
Converging lens, object distance betw...
Converging lens, object distance less...
Diverging lens
Slide projector for geometric optics ...
Converging lens illustration for geom...
Examining a leaf through a magnifying...
Illustration of a camera for geometri...
The human eye
Resolution of image by the human eye
Schematic diagram of the human eye.
Light from a single point of a distan...
Accomodation in the human eye
A bifocal corrective eyeglasses lens
Effects of astigmatism
Normal vision. Courtesy NIH National ...
The same view with myopia. (Camera le...
Compensating for myopia using a corre...
Hyperopia, and restoring of vision wi...
The first symptoms are usually notice...
Converging lens illustration
Angular magnification
Maximum magnification
Simple magnifier
Magnification of compound microscope
Compound microscope
1. ocular lens or eye-piece - 2. ob...
How a microscope works
Magnification of astronomical telescope
Astronomical telescope
Keplerian telescope, schematic
A diagram of a Newtonian telescope.
24 inch convertible Newtonian/Cassegr...
Newtonian Telescope
Light path in a Cassegrain
Light path in a Gregorian telescope
The Hubble Space Telescope orbits abo...
Diagram of decreasing apertures, that...
Jonquil flowers shot at a low apertur...
Jonquil flowers shot at a fairly high...
The numerical aperture in respect to ...
Schematic of a gradient-index lens.
On top is corner detail in a photogra...
Chromatic aberration of a single lens...
For an achromatic doublet, visible wa...
Diagram of an achromatic lens (doublet).
Diffractive optical element with comp...
The effect of changing the spherical ...
The depth of field is the region wher...
Lens and ray diagram for calculating ...
An Abbe diagram plots the Abbe number...
An achromatic doublet brings two wave...
Apochromatic lens brings 3 wavelength...
A point source as imaged by a system ...
Spherical aberration. A perfect lens ...
Longitudinal sections through a focus...
Spherical aberration.
Aberration of axial points (spherical...
Aberration of lateral object points (...
Another type of aberration is coma, w...
Polarization of light
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