optics
Class Singlet

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.Vector<OpticalSurface>
              optics.OpticalGroup
                  optics.Singlet

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<OpticalSurface>, java.util.Collection<OpticalSurface>, java.util.List<OpticalSurface>, java.util.RandomAccess, LensSystem

public class Singlet
extends OpticalGroup

Class to implement a singlet lens with two spherical surfaces being an OpticalGroup with a much simplfied interface.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Singlet(double z, double fc, RefractiveIndex index, double thick, double bc, double d)
For a singlet with a spefified position, two spherical surfaces and a specifed refractive index

Singlet(Position p, double fc, RefractiveIndex index, double thick, double bc, double d)
For a singlet with a spefified position, two spherical surfaces and a specifed refractive index

Method Summary

static Singlet	biConvex(double z, double f, RefractiveIndex index, double thick, double d) Static method to return a bi-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter.
static Singlet	biConvex(Position p, double f, RefractiveIndex index, double thick, double d) Static method to return a bi-convex Singlet specified by focal length, refractive index, thickness and diameter.
double	getBend() Method to get the bend parameter of the Singlet lens
static Singlet	planoConvex(double z, double f, RefractiveIndex index, double thick, double d) Static method to return a plano-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter.
static Singlet	planoConvex(Position p, double f, RefractiveIndex index, double thick, double d) Static method to return a plano-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter.
void	setBend(double beta) Method to set the bend parameter of the Singlet.

Methods inherited from class optics.OpticalGroup

addSurface, getAperture, getApertureSurface, getDiagram2D, getEntranceAperture, getEntrancePupil, getExitAperture, getExitPupil, getGroupPoint, getNext, getParaxialGroup, getSurface, getTitle, read, read, read, readChooser, readChooser, reset, reverse, scale, setApertureSurface, setBackFocalLength, setGroupPoint, setTitle, write, write, write, write

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

Constructor Detail

Singlet

public Singlet(Position p,
               double fc,
               RefractiveIndex index,
               double thick,
               double bc,
               double d)

For a singlet with a spefified position, two spherical surfaces and a specifed refractive index

Parameters:

p - the reference point at centre of front element

fc - curvature of front surface

index - refractive index of glass.

thick - thickness at centre of singlet

bc - curvature of back surface

d - the diameter, but surfaces have same dianeter

Singlet

public Singlet(double z,
               double fc,
               RefractiveIndex index,
               double thick,
               double bc,
               double d)

For a singlet with a spefified position, two spherical surfaces and a specifed refractive index

Parameters:

z - location of first surface on z axis

fc - curvature of front surface

index - refractive index of glass.

thick - thickness at centre of singlet

bc - curvature of back surface

d - the diameter, but surfaces have same dianeter

Method Detail

getBend

public double getBend()

Method to get the bend parameter of the Singlet lens

Returns:

double the bend parameter

setBend

public void setBend(double beta)

Method to set the bend parameter of the Singlet. Note the focal length will change (slighly)

Parameters:

beta - the bend parameter

biConvex

public static Singlet biConvex(Position p,
                               double f,
                               RefractiveIndex index,
                               double thick,
                               double d)

Static method to return a bi-convex Singlet specified by focal length, refractive index, thickness and diameter. If the focal length is negative, the lens will be bi-concave.

Parameters:

p - the lens position.

f - focal length at Optics.DEFAULT_WAVELENGTH in mm.

index - the glass refractive index

thick - centre thickness.

d - the diameter

biConvex

public static Singlet biConvex(double z,
                               double f,
                               RefractiveIndex index,
                               double thick,
                               double d)

Static method to return a bi-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter. If the focal length is negative, the lens will be bi-concave.

The lens is optimised for focal length, thus the thickness may be different than specified.

Parameters:

z - lens position on optical axis.

f - target focal length at Optics.DEFAULT_WAVELENGTH

index - the glass refractive index

thick - centre thickness (approx)

d - the diameter

planoConvex

public static Singlet planoConvex(Position p,
                                  double f,
                                  RefractiveIndex index,
                                  double thick,
                                  double d)

Static method to return a plano-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter. If the focal length is negative, the lens will be plano-concave.

The lens is optimised for focal length, thus the thickness may be different than specified.

Parameters:

p - the lens position.

f - target focal length at Optics.DEFAULT_WAVELENGTH

index - the glass refractive index

thick - centre thickness (approx)

d - the diameter

planoConvex

public static Singlet planoConvex(double z,
                                  double f,
                                  RefractiveIndex index,
                                  double thick,
                                  double d)

Static method to return a plano-convex Singlet specified by focal length, refractive index, approxiate thickness and diameter. If the focal length is negative, the lens will be plano-concave.

The lens is optimised for focal length, thus the thickness may be different than specified.

Parameters:

z - lens position on optical axis.

f - target focal length at Optics.DEFAULT_WAVELENGTH

index - the glass refractive index

thick - centre thickness (approx)

d - the diameter