By Hiroshi Nakajima
A realistic introductory consultant to optical layout masking geometrical optics, uncomplicated wave-optics and diffraction, utilizing Excel software program explains useful calculation tools for designing optical structures with totally worked-out examples and heading off advanced mathematical equipment contains useful calculations for ray tracing, laser beam (Gaussian beam) focusing, and diffraction calculations; the ray tracing and the diffraction calculations are performed through the use of the VBA application which Excel offers as a assisting instrument describes simple optical idea and alertness tools, and offers readers with calculation equipment for designing laser optical structures with quite a few sensible calculation examples. After completing the booklet, even green readers must have the power to layout laser optical structures covers huge parts of geometrical optics and diffraction idea, supplying a superb review and reference for newcomers or non-specialist engineers followed via an internet site together with password secure digital records
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Extra resources for Optical Design Using Excel: Practical Calculations for Laser Optical Systems
6, negative for Fig. 6 (b) Aspheric lens. 7 shows an optical system which uses a microscope objective lens and an imaging lens. The conjugate point of the objective lens lies at infinity. The lateral magnification ???? in the figure will then be: ???? = −fi ∕fo When using a microscope, we observe the image by using a lens to magnify the image generated by the objective lens. Usually, the conjugate point of an objective lens lies at infinity. Thus rays that originate at the front focal point of the objective lens, are collimated after passing through the objective lens, and are then focused onto the image sensor by the imaging lens.
7. 47a,b) tells us that there is no aberration along the X-axis; rather there is an aberration of ????Y = S3 Y2 ???? in a line along the Y-axis. Originally, we assumed that the image lay on the Y-axis. However, the image may have both X- and Y-coordinates. By symmetry, the aberration could also be in a line along the X-axis, on a slightly different image plane. Thus, the beam from the off-axis object will converge on the two different image planes. 18). 49) describes the equation of a circle with a radius of PY ????.
Another ray leaves A and passes through the first focal point F, is refracted at the primary principal plane H2 , and then travels parallel to the axis. 10. Rays 1 and 2 meet again at A′ after passing through the lens. This point will be the image point A′ , that is, the lens will make an image A′ B′ of the object AB. 2 Lateral Magnification ???? The lateral magnification ???? is defined as the value of the height of the image divided by the height of the object. 28) is referred to as Newton’s formula.