The surfaces will then appear in the layout plots and can be used for various analyses. Opticstudio, then called zemax, was originally written by ken moore and was the first optical. Perhaps the most famous and groundbreaking three lens system. Software codev, radiantzemaxoptics studio, oslo, synopsys, optalix must get on board asap. Features of optical design software databases of common lenses and elements sold by vendors simulate aberrations and ray scatter diagrams for various points along the field of the system standard optical designs e. Practical computeraided lens design tells how to design and evaluate lenses using computers. One of the reasons i wanted to acquire the cooke telescope was to dissect the early apochromat objective for historical reasons. The design of wavefront coded imaging system nasaads. Decenteringtilt analysis in oslo posted in atm, optics and diy forum. Cooke triplet and as telecentric lens double gauss and derivatives tessar lens tolerancing a periscope design lenses for microlitography. In the file ribbon click the arrow below the open icon and notice that recently opened files are listed.
Cooke triplet file exchange matlab central mathworks. Cooke triplet double gauss pupil effects tolerancing i. Whether you require a complex medical laser system designed and built to fda standards or just a days help with. Even though there has been much progress in optical design software since the book was written, the principles are timeless. The cooke triplet cementing three lenses, is a photographic lens designed in 1893 by dennis taylor 9. You can examine the image analysis capabilities of opticstudio using the cooke triplet design. Abstract wavefront coding is a new method to extend the depth of field, which combines optical design and signal processing together. We have used the standard cooke triplet 40 degree field lens file for this experiment. The newton or cassegrain telescope, associated field correctors. It then demonstrates how opic, a software procedure in the ccl language of oslo software, which is also available for free downloading, can be used to carry out a real design task, the design of a threecomponent objective. Modas stands for modern optical design and analysis software it is a telescope design software of the most popular telescope systems used by the amateur astronomers and telescope makers, including spot diagrams, ray fans, wave aberrations, diffraction analysis, optical layout, optimization, tolerancing, mirror testing and many other atm tools.
The revolution and design of photographic lens with zemax. How to model thermal effects using opticstudio myzemax. Design a cooke triplet with minimal seidel aberrations using zemax to vary the available degrees of freedom. The cooke triplet is a photographic lens designed and patented patent number gb 22,607 in 1893 by dennis taylor who was employed as chief engineer by. In this study, a discussion for the optical performance of diffractionlimited airspaced cooke triplet 1415 16 1718192021 lens designs optimized over the spectral range 0. Each lens is defined by a combination of 2 surfaces with the first surface defining the thickness and material to the next surface.
It describes how to use the multiconfiguration editor and pickup solves to compute parameters for systems operating under differnt temperatures. By using optical design software zemax,we designed a practical wavefront coded imaging system based on a conventional cooke triplet system. Teaching lens, optical systems and optomechanical systems. Applications of the scl programming language to optical design. Opensource optimization algorithms for optical design. Sometimes, i see myself punching in the parameters that are needed for a lens design, and i can press a button to get the desired performance of the system. Originally, the two exterior planoconvex lenses were composed. Opus associates optics design and engineering consultancy. Lens design with computational software like zemax and codev are the norm now. Opus associates established by laurence robinson, is a consultancy specialising in the development of optical systems and products.
The desired focal length of the system is therefore the power is. The ultimate guide to lens design using the classic. In this system there are 3 lenses, composing a common lens type, the cooke triplet. The two elements on the outside are positive crowns and the middle element is a negative flint.
Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. Zemax tools include opticstudio, the industryleading optical design software, opticsbuilder, for cad users packaging optical system, and opticsviewer for manufacturing engineers. Teaching lens, optical systems and optomechanical systems design at the irvine center for applied competitive technologies cact a,b valentina v. It is used for the design and analysis of both imaging and illumination systems. A dirac delta function was chosen to further examine an optically perfect simulated sinusoidal siemens star, and a nearly diffraction limited cooke triplet psf, simulated within zemax optical design software, was chosen to examine how offset centers affect a realistic, optically degraded image. Page 6 of 7 1899 4 f16 cooke photovisual apo refractor posted in classic telescopes.
More information about the design of the mtf and psf figure 3 of a cooke triplet lenses can be obtained using professional software like. By harnessing the power of opticstudio, opticsbuilder, and opticsviewer, optical, mechanical, and manufacturing engineers can speak the same language across the optical product development process. However, for the thin lens design of a cooke triplet composed of three airspaced singlets, the two steps of optimization mentioned above may be combined into a single optimization procedure. Not required to undergo environmental testing thermalvacuum cycling, vibe, radiation testing, etc and will not be flown to develop and test the 2u cubesat mwir camera protoflight payload, a precursor to the. I figured some intrepid diyer might be interested in the results and maybe put one together. Opticstudio can model changes in refractive indices due to temperature changes as. A cooke triplet system is taken as an example to compare the asbuilt performance optimization method, code v and zemax opticstudios builtin optimization methods and the traditional method which optimizes only nominal performance by montecarlo tolerance analysis. Cooke triplet design the cooke triplet cementing three lenses, is a photographic lens designed in 1893 by dennis taylor 9. The cooke triplet is the first and simplest design form that is capable of correcting all the first and thirdorder aberrations over a medium fieldofview 1. Modern lens design mcgrawhill professional engineering. Unlike conventional optical system, the wavefront of this new system is modulated by a specially designed phase mask.
Product engineering teams can share complete design data and analyze performance in a virtual model. Finally, as above, well look at some realworld examples. Lens design without expensive proprietary software. In a recent thread, using oslo edu, i tried to assess the effects of tilting a schmidtlike 4th order corrector plate and obtained a result that showed excessive lateral color. Lens design opti 517 syllabus university of arizona. For the images, i am using the optical design software zemax, but i havent found a good. The results obtained by this program were in very good agreement with that of the software zemax program 14 which is used in this study for computing the previous optical merit functions. Wollaston and chevalier landscape lenses, a 10x microscope objective, the rapid rectilinear and celor lenses, cooke triplet and petzval portrait lenses, and a telephoto lens. In addition to aberrations such as spherical aberration and coma, an anastigmat like the cooke triplet includes additional aberrations of astigmatism, distortion, and lateral colour. Pdf ab initio design of a cooke triplet usually necessitates a heuristic preselection of optical glasses for the three lens elements. Decentering andor titlting of optical component is a factor in image quality, but its rarely if ever discussed or assessed on atm sites.
Comparison of execution times of array ray tracing vs single ray tracing per dde call in two computing environments. Please note that execution times will vary depending upon the specific systems hardware and software configuration. In this article, thermal effects are modeled in three different systems. By choosing appropriate glass types, crown glasses for the outer, positive focal length elements and a flint glass for the central, negative focal length. Zemax is a company that sells optical design software. Brian blandford 2005 1 opic lens design tutorial edu. Basically i was wondering if i could design a cooke triplet in a reasonable large format focal length using lenses you can buy out of a catalog. Defined as hardware that is designed to flight formfactor, but may require additional design, development, testing or flight certification. The approach is general and fundamental, and is not limited to one specific software program.
A diy 177mm f8 cooke triplet for 4x5 from offthe shelf. Yesterday was kind of slow at work, so i played in zemax while i worked on some other stuff. Optical modeling combining geometrical ray tracing and physicaloptics software. Oslo programs include the ability to export your systems to cad programs, in dxf, step and iges formats. Cooke triplet design the cooke triplet cementing three lenses, is a photographic lens designed in.
Geometrical optics calculations obtained with zemax for each lens design are. The article uses four examples to demostrate the converstion to nonsequential mode. Practical computeraided lens design by gregory hallock smith. This article demonstrates how to insert dummy surfaces at the front and rear principal planes of system, using a cooke triplet as an example. Cooke triplet design the design methodology is explained in chapter 12, handbook of design, 2nd ed by daniel malacara. A cooke triplet system is taken as an example to compare the asbuilt performance optimization method, code v and zemax opticstudio s builtin optimization methods and the traditional method which optimizes only nominal performance by montecarlo tolerance analysis. Wavefront coding is a new method to extend the depth of field, which combines optical design and signal processing together. The lens design starting point for the local optimization. The cooke triplet was introduced in 1895 by dennis taylor of cooke and sons. Cooke triplet remains one of the most popular camera lens forms. Inspired by my lens design class homework 2, in this post i will walk through the procedure for designing a cooke triplet from scratch using firstorder thin lens calculations, then optimizing it with real thicknesses in zemax opticstudio. Oslo code v zemax optimization lens for laser diode collimating critical airspace doublet dall and offner null correctors monochromatic quartet achromatization.
Optical modeling combining geometrical ray tracing and. Osa optical system optimization method for asbuilt. We are a small well regarded team of optics experts with many years experience of product development. Here the three lenses are defined by surfaces 12, 34, and 56. All content is posted anonymously by employees working at zemax. Modern lens design is an excellent textbook in optical design using personal computer software. Decenteringtilt analysis in oslo atm, optics and diy. The focusing optic design is a cooke triplet, which uses multiple lenses to minimize all five third order seidel aberrations spherical, coma, astigmatism, field curvature, distortion. Although there are accounts of the objectives being reworked over the decades, not much detailed constructional information has been documented or published. Append data files from commercial interferometers such as zygo to any surface for advanced simulation and tolerancing. Sinusoidal siemens star spatial frequency response.
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