Optical System Design
Taking the math and the mystery out of optical design, this comprehensive book uses a graphics-oriented approach, making optical design techniques easy to understand through hundreds of detailed diagrams.
TABLE OF CONTENTS Optical System Design
Glossary
- Abbe number (also Vnumber)
- ( n d - 1)/( n F - n c), where n d is the refractive index at wavelengths d = 0.5876 ?m, F = 0.4861 ?m, and C = 0.6563 ?m. Also called V number.
- aberration
- Geometrical errors in imagery whereby a perfect (or stigmatic) image is not formed. Typical aberrations include spherical aberration, astigmatism, coma, and chromatic aberration. The aberration of distortion does not affect the image quality but rather the image position. Similarly field curvature creates an image on a curved image surface. Lens bendings, locations, powers, glass types, as well as number of lenses and stop position, are all used to minimize aberrations.
- achromatic lens
- A lens using two or more glass types which brings two colors to a common focus. Refractive along with diffractive optics can also lead to achromatic designs.
- afocal lens
- A lens system which takes collimated light input and produces collimated light out, such as a pair of binoculars, a telescope, and a beam expander.
- Airy disk
- The central maximum of the diffraction pattern from a perfect optical system with a circular unobscured aperture. The diameter of the Airy disk is 2.44 ? f/number.
- anomaly, image
- False or "ghostlike" images in thermal infrared systems which are caused by the detector "seeing," or sensing energy from, portions of the system interior (rather than scene energy). If the system interior is at a different...
A-C
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