class EyepieceErfle(optic.Optic):
"""Based on USP1479229, Erfle, Heinrich"""
def __init__(self):
super().__init__()
self.surfaces.add(index=0, radius=np.inf, thickness=np.inf)
self.surfaces.add(index=1, radius=np.inf, thickness=15.224, is_stop=True)
self.surfaces.add(index=2, radius=269.0, thickness=25.1, material="L-BSL7")
self.surfaces.add(index=3, radius=-125.9, thickness=36.5)
self.surfaces.add(index=4, radius=93.6, thickness=18.5, material="N-BAK2")
self.surfaces.add(index=5, radius=-93.6, thickness=4.1, material="N-F2")
self.surfaces.add(index=6, radius=2550.0, thickness=0.19)
self.surfaces.add(index=7, radius=93.6, thickness=18.5, material="N-BAK2")
self.surfaces.add(index=8, radius=-93.6, thickness=4.1, material="N-F2")
self.surfaces.add(index=9, radius=2550.0, thickness=32.685)
self.surfaces.add(index=10)
self.set_aperture(aperture_type="EPD", value=4.0)
self.fields.set_type(field_type="angle")
self.fields.add(y=0)
self.fields.add(y=14)
self.fields.add(y=20)
self.wavelengths.add(value=0.4861)
self.wavelengths.add(value=0.5876, is_primary=True)
self.wavelengths.add(value=0.6563)
