Designing the optimal fresnel lenses by using zemax software. For those who are proficient in zemax, were there certain models that were extremely helpful in learning the program. The zemax code in the book is a bit dated by now but most users should be able to still use it for newer editions of the software. Im entering my last year as a physics undergraduate, and my senior project is making different models in zemax. In many optical systems, elements are purposely tilted or decentered from the optical axis. Nowadays, we are required to deliver high performance not necessarily high quality lens designs in a short amount of time. There are also many useful figures to help visualize the main issuesconsiderations of lens design. Custom small objectives lenses are for professionals that require a solution that is beyond the capability of offtheshelf objective lenses. The model and the simulation of beam spot are shown in figure 5 and figure 6 respectively. Design of an optical emitting system for scannerless. As a special kind of spectrometer with the czernyturner structure, the echelle spectrometer features twodimensional dispersion, which leads to a complex astigmatic condition. Im finishing a diffraction 3d microscope with a publicly available objective and a cylindrical lens. Zemax help for coupling diode stack physics forums.
This article explains how to model an offaxis parabolic mirror when the source is a finite distance away from the mirror. The optics of cylindrical lenses allow their use in applications for which spherical lenses are not suited. Thorlabs mounted planoconvex round cylindrical lenses focus or collimate light along a single axis. The impact of the tiltangle of the cylindrical lens lj1695rma, thorlabs with focal length fl 50mm, is assessed using the accompanying zemax model for various system parameters. Osa design of spherical aberration free liquidfilled. It is designed to meet the demanding requirements of laser electrooptic applications. Introduction to zemax entry with the lens data editor. Online surface inspection using cylindrical lens based spectral domain lowcoherence interferometry dawei tang, feng gao, and x. Lumotives jain says, cylindrical optics split the horizontal and vertical axis, making the optic much less susceptible to drifts in one or more directions. Two step height surfaces were measured, and the captured interferograms were. Cylindrical plano concave lenses synthetic fused silica 10.
Planoconvex cylindrical lenses, nbk7, uncoated thorlabs, inc. Samples are provided for arrays of spherical, conic aspheric, evenaspheric and cylindrical lens arrays. Cylindrical lenses focus or expand light in one axis only. The lenses sold on this page are fabricated from a calcium fluoride caf 2 substrate that provides high transmission throughout the midir spectral region, as shown in the graphs tab. The difference between an optical engineer and a mechanical engineer with optical software is the fundamental understanding of the optical systems. The zemax official website stops hosting legacy software after two years so i cant get it. The pwc method is used to calculate the initial structure parameters of the zoom lenses, and the optical design software zemax is used to eliminate the spherical aberration at different focal lengths. These beamlets are then passed through a spherical lens fl to be overlapped at the homogenization plane fp located. Uni optics small objectives lenses are designed with the assistance of cad, solidworks and zemax software using top quality glass having highly specific refractive indices. A complete test glass listing can be found within current versions of zemax and oslo optical design software, or can be emailed on request.
Zemax model of a spectrophotometer illumination system using cylindrical lenses zemax model of illumination system with a lenticular lens arrays for uniform slit illumination depending on the stages of development, certain components may have been previously determined or. Cylinder lenses are a type of lens that have differing radii in the x and y axes, causing the lens to have a cylindrical or semi cylindrical shape, and image magnification in only a single axis. Frequency grooves in zemax software is important and is. Paraxial lens design of anamorphic lenses with a fixed. Zemax leads the industry in technical power, ease of use and proven accuracy. Other possibilities are minimizing the spot diameter this gives 124. Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. When used in combination with a planoconvex cylindrical lens an elliptical shaped beam can be sharped into a circular beam for use in semiconductor and. Due to the symmetry in the optical system, a onedimensional array of. Osa astigmatismcorrected echelle spectrometer using an.
How to model a fresnel lens in opticstudio zemax zemax. Read improved twodimensional orthogonal cylindrical lens arrays optical system with controllable focus profile for uniform irradiation, proceedings of spie on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. How they work flys eye arrays are typically used in pairs along with a condenser lens to provide uniform irradiance at the illumination. Resources knowledgebase consultants software downloads. Planoconvex round cylindrical lenses, caf 2, mounted.
The profile is discontinuous and has grooves that minimize its thickness, but it is otherwise identical to a curved surface. Optics software winlens optical design software free winlens basic winlens. Zemax is a company that sells optical design software. All cylindrical lenses can be ordered uncoated and the cylindrical lenses made from nbk7 can be ordered with one of the following broadband ar coatings. They can be used to focus light into a thin line in optical metrology, laser scanning, spectroscopic, laser diode, acoustooptic, and optical processor applications. Authored by mark nicholson, updated by natalie pastuszka abstract. Lens arrays are also supported in sequential optical design, via the userdefined surface capability. The basic setup is a diode stack, a biconvex cylinder lens, a planoconvex cylindrical lens, a planoconcave cylindrical lens, and an aspheric lens. A cylindrical lens modifies one axis while a spherical or axisymmetric lens modifies two axes. Improved twodimensional orthogonal cylindrical lens. This article provides a summary of the ideal and real fresnel lens models available in opticstudio sequential and nonsequential modes. For instance, a cylindrical lens collimating in the horizontal direction has no impact if it moves in the vertical directionthe tolerances in that direction are huge. Now i want to use a concave mirror to form an image of an point object with a realsize, for example 10nm et al. Knowing that the rod is cylindrical how is the zones divided in x, y and z directions.
Online surface inspection using cylindrical lens based spectral domain lowcoherence interferometry. Again, you need to know a fair amount of optics to actually get something useful from zemax. Incoherent irradiation of the diode after shaping detector size. Lens design with computational software like zemax and codev are the norm now. A systematic design idea for liquidfilled cylindrical zoom lenses with ideal imaging quality over a wide focal length range is introduced in detail. Zemax help for coupling diode stack thread starter evilmanta. From an optical design standpoint, a fresnel lens is a concave or convex lens that has been clasped in the zdirection. Zemax software is used to simulate the sdlci system and analyze the alignment errors. Plano convex cylindrical lens, bk7, fused silica and optical glass. They can also be used to expand the output of a laser diode into a symmetrical beam. The book not only covers theory of lens design but the author also delves into the math using practical examples. Astigmatismcorrected echelle spectrometer using an off.
All ive been able to do is get the spot size to approximately 0. The highly concentrated solar radiation from the fresnel lens folding mirror system is further compressed to the nd. Zemax tutorial 1 lens data editor interface youtube. Zemax is the industry standard optical system design software, combining sequential lens design, analysis, optimization, tolerancing, physical optics, nonsequential optical system design, polarization, thinfilm modeling and mechanical cad importexport in a single, easytouse package. Optical design with zemax for phd basics lecture 2. Nonintuitive lens design systems like aspherical lenses and offaxis lenses too. Radial fresnel lenses are concentric circles and cylindrical fresnel lenses. Cylinder lenses are commonly used as laser line generators, or to adjust image height size or correct for astigmatism in imaging systems. This finds uses where there is not room for a more complex lens, but a higher degree of aberration correction is required.
As for your question about the shape that you can do id start from a cylinder, because, well, thats how the section of. Yag laser pumping, since it is transparent over the nd. The key expired in october 2017, but it will still work on versions of the software that originated before that date. Leading optical product design software for engineering. When used in the design phase of a custom optics project, this not only helps to greatly eliminate tooling charges, but it aids greatly in shortening delivery lead times. Optik software winlens optical design software free winlens basic winlens. Astigmatismcorrected echelle spectrometer using an offtheshelf cylindrical lens article in applied optics 5628. Online surface inspection using cylindrical lens based. Basic zemax handling surface types, quick focus, catalogs, vignetting, footprints, system insertion, scaling. It is used for the design and analysis of both imaging and illumination systems.
Zemax is the only software that is both a lens design sequential optics. Cvi melles griot has developed the technology for use in several markets. Look above, beneath the words zemax optical studio model for spherical grin lens at the line which says commits, branch, releases, contributor. These lenses are typically easier to integrate into our standard optomechanics. Both types use either cross cylindrical or square microlens arrays to divide the incident beam into beamlets. Symmetry principle, lens bending, correcting spherical aberration, coma. Exercises lecture optical design with zemax part 1 1. Studying of optical properties of cylindrical lenses array solar. Proficiency with zemax does not guarantee success with modeling your optical system. Plano convex cylindrical lenses array have been designed by using optical design software zemax used normal incident beam at system. Most anamorphic lenses comprise of cylindrical lens elements. In this work, we propose an optical design of astigmatismcorrected echelle spectrometer using an offtheshelf cylindrical lens. Yag laser rod through a set of four fused silica lenses with semi cylindrical shape, as shown in fig.
They can be used to focus light into a thin line in optical metrology, laser scanning, spectroscopic, laser. Ive also employed cylindrical optics for beam shaping purposes at times. Zemax is the software that optical engineers and designers around the world choose for lens design, illumination, laser beam propagation, stray light, freeform optical design and many other applications. They are available with focal lengths ranging from 20 mm to 200 mm and can be ordered uncoated or with a broadband.
Or another similar opensource free software to analyze optics like lens aberrations, ray tracing and image formation by simulation, it will be very. The more usual type of grin lens is a cylindrical rod of glass with an index that varies in a radial direction with distance from the axis of the cylinder. Solution of exercises lecture optical design with zemax. For instance, a cylindrical lens collimating in the horizontal direction. The parameters passed to the system and the positions of two cylindrical lenses are process into zemax. In zemax software with the lens width definition, it is possible to design the fresnel lens in radial and cylindrical modes, it is obvious that the width of the radial fresnel lens is zero 10,11. The mathematical model considering astigmatism introduced by the offaxis mirrors, the. The numerical aperture in the object space is na 0. Importexport files in code v, sigma, optalix, oslo or zemax format. Introduction to lens design with practical zemax examples. Zemax delivers design software, training, and support services that set. Online surface inspection using cylindrical lensbased. The ckx019 planoconvex cylindrical lens is an uncoated, 1 inch 25. Click on the red document icon next to the item numbers below to.
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