Torch Lens Maker

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Simple lenses ​

An overview of simple lenses - also called "singlet" lenses. A simple lens is made of two refractive surfaces.

Biconvex Spherical ​

python
import torchlensmaker as tlm


lens = tlm.lenses.symmetric_singlet(
    tlm.SphereByRadius(diameter=10, R=20),
    tlm.OuterGap(0.5),
    material="BK7",
)

optics = tlm.Sequential(
    tlm.PointSourceAtInfinity(beam_diameter=8),
    tlm.Gap(5),
    lens,
)

tlm.show2d(optics, end=20)

Biconvex Parabolic ​

python
import torchlensmaker as tlm

lens = tlm.lenses.symmetric_singlet(
    tlm.Parabola(diameter=10, A=0.03),
    tlm.OuterGap(0.5),
    material="BK7",
)

optics = tlm.Sequential(
    tlm.PointSourceAtInfinity(beam_diameter=8),
    tlm.Gap(5),
    lens,
)

tlm.show2d(optics, end=20)

Biconcave spherical (diverging lens) ​

python
import torchlensmaker as tlm

lens = tlm.lenses.symmetric_singlet(
     tlm.SphereByRadius(diameter=10, R=-18),
    tlm.InnerGap(0.5),
    material="BK7",
)

optics = tlm.Sequential(
    tlm.PointSourceAtInfinity(beam_diameter=8),
    tlm.Gap(5),
    lens,
)

tlm.show2d(optics, end=20)

Meniscus Lens ​

python
import torchlensmaker as tlm

lens = tlm.lenses.singlet(
    tlm.Parabola(diameter=10, A=0.03),
    tlm.OuterGap(0.5),
    tlm.SphereByRadius(diameter=10, R=30),
    material="BK7",
)

optics = tlm.Sequential(
    tlm.PointSourceAtInfinity(beam_diameter=8),
    tlm.Gap(5),
    lens,
)

tlm.show2d(optics, end=20)

Plano Lens ​

python
import torchlensmaker as tlm

lens1 = tlm.lenses.semiplanar_front(
    tlm.SphereByRadius(diameter=10, R=-15),
    tlm.OuterGap(0.8),
    material="BK7",
)

lens2 = tlm.lenses.semiplanar_rear(
    tlm.SphereByRadius(diameter=10, R=-15),
    tlm.InnerGap(0.6),
    material="BK7",
)

optics = tlm.Sequential(
    tlm.PointSourceAtInfinity(beam_diameter=8),
    tlm.Gap(5),
    lens1,
    tlm.Gap(5),
    lens2,
)

tlm.show2d(optics, end=10)