Binary 1 (non-sequential geometry objects)



The Binary 1 object is a standard lens with a diffractive optic phase profile similar to the Binary 1 surface type on the front face. The Binary 1 phase profile adds phase to the ray according to the following polynomial expansion:

where N is the number of polynomial coefficients in the series, M is the diffraction order, and Ai is the coefficient on the ith extended polynomial term. The polynomials are a power series in the normalized coordinates x and y, as described in "Extended Odd Asphere Lens". The coefficients Ai units of radians (2π radians is one wave).

The definitions for the parameters are:

Parameter # Description Face Name Face #
1 The radius of curvature of the front face. Use zero for infinity (flat). Front 1
2 The conic constant of the front face. Front 1
3 The clear semi-diameter or semi-diameter to the clear aperture of the front face. Use a negative value to yield the hyperhemispheric sag point. Front 1
4 The radial aperture to the edge of the front side of the lens. Front 1
5 The center-to-center thickness of the lens. Side 0
6 The radius of curvature of the rear face. Use zero for infinity (flat). Back 2
7 The conic constant of the rear face. Back 2
8 The clear semi-diameter or semi-diameter to the clear aperture of the rear face. Use a negative value to yield the hyperhemispheric sag point. Back 2
9 The radial aperture to the edge of the rear side of the lens. Back 2
10 The diffraction order M. Front 1
11 The normalization radius. The x and y coordinates are normalized to this value. This keeps all coefficients in units of radians. Front 1
12 The maximum term number. Front 1
13-242 The values of the coefficients on the polynomial terms. Front 1

This object does not diffract rays correctly if the front surface is made hyperhemispheric. See also the Binary 2 object.

For important information on diffractive objects, see "Diffraction from NSC objects".

Face Numbers: Front face is Face 1, back face is Face 2, side face is Face 0.

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