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OPTI 201R 10 L9

# OPTI 201R 10 L9 - OPTI 201R Fall 2010 9-1 4.2.1 Unfolding...

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Unformatted text preview: OPTI 201R Fall 2010 9-1 4.2.1 Unfolding Deviating Prisms and Tunnel Diagrams ! # Unfold " the prism about each reflecting surface . ! \$%&’( )’* +&,(- ,’./ ,.( /+.,0)11*-equivalent Plane-Parallel Plate. ! \$2,( ,( 0)1134 ) tunnel diagram . ! 5)63( .23 #0&//634# 7-axis straight. Figure 4.14 Unfolding of a 45°-90°-45° prism to produce a tunnel diagram or PPP. Figure 4.15 Unfolding of a penta, a Wollaston and a Pechan prism to produce a tunnel diagram. OPTI 201R Fall 2010 9-2 4.3 Dispersing Prisms ! 8)02 9):313’;.2 /< 1,;2. 2)( ) 4,<<3&3’. velocity in any media. ! ! ’=>? (refractive index varies with wavelength for any media) ! ! n ! (,’[email protected]?A’B ! (,’[email protected]? C ’=>? ! (,’[email protected]?A’B=>? ! (,’[email protected]? (Snell's Law is a function of wavelength) ! ! @B=>? (the angle of refraction is a function of wavelength) ! ! Prisms disperse light! Dispersion D \$23 )’;%1)& (+&3)4 (separation) of light at the output of a prism, into the spectral colors present in the light. Figure 4.17 Dispersing triangular prism. ! E,(+3&(,’; +&,(-(F @ incident > 0° ! E3:,).,’; +& isms: @ incident = 0° (therefore no dispersion) OPTI 201R Fall 2010 9-3 ! G/.2 4,(+3&(,/’ )’4 43:,).,/’ can occur at the same time: Figure 4.19 Other dispersing prism types: (a) double Amici dispersing prism; (b) Pellin-Broca dispersing prism; (c) Abbe dispersing prism.(b) Pellin-Broca dispersing prism; (c) Abbe dispersing prism....
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OPTI 201R 10 L9 - OPTI 201R Fall 2010 9-1 4.2.1 Unfolding...

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