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ThickLens class.
This class represents thick lenses, specified by curvatures and thickness
instead of focal length.
*=== Attributes ===*
SetupCount (inherited): class attribute, counts all setup components.
[integer]
OptCount (inherited): class attribute, counts optical components. [integer]
Name: class attribute. [string]
HRCenter (inherited): center of the 'chord' of the HR surface. [3D vector]
HRNorm (inherited): unitary normal to the 'chord' of the HR (always pointing
towards the outside of the component). [3D vector]
Thick (inherited): thickness of the optic, counted in opposite direction to
HRNorm. [float]
Dia (inherited): diameter of the component. [float]
Ref (inherited): reference string (for keeping track with the lab). [string]
ARCenter (inherited): center of the 'chord' of the AR surface. [3D vector]
ARNorm (inherited): unitary normal to the 'chord' of the AR (always pointing
towards the outside of the component). [3D vector]
N (inherited): refraction index of the material. [float]
HRK, ARK (inherited): curvature of the HR, AR surfaces. [float]
HRr, HRt, ARr, ARt (inherited): power reflectance and transmission
coefficients of the HR and AR surfaces. [float]
KeepI (inherited): whether of not to keep data of rays for interference
calculations on the HR. [boolean]
**Note**: the curvature of any surface is positive for a concave surface
(coating inside the sphere).
Thus kurv*HRNorm/|kurv| always points to the center
of the sphere of the surface, as is the convention for the lineSurfInter of
geometry module. Same for AR.
******* HRK > 0 and ARK > 0 ******* HRK > 0 and ARK < 0
***** ******** and |ARK| > |HRK|
H***A H*********A
***** ********
******* *******
**Note**: in the case of thicklenses, the thickness provided to and by the
initializer is the thickness *on the optical axis*, and not the thickness
on the side of the component (like mirrors).
**Note**: in the case of thicklenses, the center provided to the initializer
is the *apex* of the principal face, and not the chord of the HR surface.
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ThickLens initializer. Parameters are the attributes. Returns a ThickLens.
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Returns the list of lines necessary to print the object.
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