AC254_125_A

class raytracing.thorlabs.AC254_125_A(wavelength=None)

Bases: AchromatDoubletLens

AC254-125-A

Parameter	value
fa	125.0
fb	122.0
R1	77.6
R2	-55.9
R3	-160.8
tc1	4.0
tc2	2.8
te	5.0
n1	0.5876
n2	0.5876
diameter	25.4
Design Wavelengths	486.1 nm, 587.6 nm, and 656.3 nm
Operating Temperature	-40 °C to 85 °C

Notes

More info: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=120 As of May 31 2020, the calculated edge thickness does not match the product page. There does not seem to be another place where the information can be validated (the PDF doesn’t show the edge thickness). https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=120. Because everything else is fine in all calculations, to avoid warnings, we are setting te=5.3 mm, even if the web site says 5.0 mm. All properties are correct except that, and it has no impact on calculations (it is just a sanity check).

Methods

__init__([wavelength])

A base class for any lens that we make from its individual elements

Inherited Methods

`all`()
`append`(matrix)	This function adds an element at the end of the path.
`backFocalLength`()	The focal lengths measured from the back vertex.
`backwardConjugate`()	With an image at the back edge of the element, where is the object ? Distance before the element by which a ray must travel to reach the conjugate plane at the back of the element.
`display`()
`displayHalfHeight`()	A reasonable height for display purposes for an element, whether it is infinite or not.
`effectiveFocalLengths`()	The effective focal lengths calculated from the power (C) of the matrix.
`flipOrientation`()	Flip the orientation (forward-backward) of this group of elements.
`focalDistances`()	This is the synonym of effectiveFocalLengths()
`focalShifts`([wavelengths])	The chromatic aberration shifts to the focal distance from the design focal length for a range of wavelengths.
`focusPositions`(z)	Positions of both focal points on either side of the element.
`forwardConjugate`()	With an object at the front edge of the element, where is the image? Distance after the element by which a ray must travel to reach the conjugate plane of the front of the element.
`fromFocusToFocus`()	A simple method to obtain a MatrixGroup that includes all three matrices to travel from the front focus, through the lens, and then to the back focus.
`fromStruct`(theStruct)
`frontFocalLength`()	The focal lengths measured from the front vertex.
`hasFiniteApertureDiameter`()	True if ImagingPath has at least one element of finite diameter
`insert`(index, element)	This function is used to insert a matrix at a specific index.
`intermediateConjugates`()	This function calculates the position and the magnification of the conjugate planes.
`load`(filePath[, append])	A MatrixGroup saved with save() can be loaded using this function.
`magnification`()	The magnification of the element
`mul_beam`(rightSideBeam)	This function calculates the multiplication of a coherent beam with complex radius of curvature q by an ABCD matrix.
`mul_matrix`(rightSideMatrix)	This function is used to combine two elements into a single matrix.
`mul_ray`(rightSideRay)	This function does the multiplication of a ray by a matrix.
`opticalInvariant`(ray1, ray2[, z])	The optical invariant is a quantity that is conserved for any two rays in the system.
`pointsOfInterest`(z)	List of points of interest for this element as a dictionary:
`pop`(index)	This function is used to remove a matrix at a specific index.
`principalPlanePositions`(z)	Positions of the input and output principal planes.
`profileFromRayTraces`(rayTraces[, z])
`save`(filePath)	A MatrixGroup can be saved using this function and loaded with load()
`showChromaticAberrations`([wavelengths])	Show the chromatic aberrations focal shifts for this lens as obtained from the function focalShifts()
`toStruct`()
`trace`(inputRay)	Trace the input ray from first element until after the last element, indicating if the ray was blocked or not.
`traceMany`(inputRays[, useOpenCL])	This function trace each ray from a group of rays from front edge of element to the back edge.
`traceManyNative`(inputRays)	This function trace each ray from a group of rays from front edge of element to the back edge.
`traceManyOpenCL`(inputRays)	This function trace each ray from a group of rays from front edge of element to the back edge.
`traceManyThrough`(inputRays[, progress, ...])	This function trace each ray from a list or a Rays() distribution from front edge of element to the back edge.
`traceManyThroughInParallel`(inputRays[, ...])	This is an advanced technique to gain from parallel computation: it is the same as traceManyThrough(), but splits this call in several other parallel processes using the multiprocessing module, which is os-independent.
`traceThrough`(inputRay)	Contrary to trace(), this only returns the last ray.
`transferMatrices`()	The list of Matrix() that corresponds to the propagation through this element (or group).
`transferMatrix`([upTo])	The transfer matrix between front edge and distance=upTo

Attributes

`Struct`
`determinant`	The determinant of the ABCD matrix is always frontIndex/backIndex, which is often 1.0.
`forwardSurfaces`	A list of surfaces that represents the element for drawing purposes
`hasPower`	If True, then there is a non-null focal length because C!=0.
`isIdentity`
`isImaging`	If B=0, then the matrix represents that transfer from a conjugate plane to another (i.e. object at the front edge and image at the back edge).
`largestDiameter`	Largest finite diameter in all elements
`surfaces`