We design complex optical systems and precision optics for different applications. Thermal modeling and athermalization in telescope optical. Systems that are deployed in space, for example, cannot afford to use techniques can be customized for all types of optical systems. We have extensive experience in physical optics, geometrical optics, photonics, optical physics, optomechanics and optoelectronics. Zemax considers a linear geometric expansion of every optical. Zemax optical design based tutorialchinese edition. The goal of this paper is to study in which extent the use of zemax is suited for athermalization purposes. Page 1 of 2 aware of any open source optics software programs.
Right from the design stage, our engineers check optomechanical stability and, if needed, ways to ensure the athermalization of their design by discussing the best solutions with mechanical andor electronic engineers. Comparison of lenses thermal expansion formulation in zemax. Among the halfdozen of serious candidates i focused in particular on zemax and. Winlight system is involved in all optics production steps. Chalcogenide and germanium hybrid optics gabriel cogburn lightpath technologies, 2603 challenger tech ct. Abstract i looked at some optical design software to choose one to work on the 30m optics but also for general use at iram. The thermal modelling capabilities in zemax optical design software can model changes in. Lens design, optical system design, optomechanical design. Optical design for product development is our reason of being.
Minimizing thermal defocus effects in liquid lens based. Our collaboration with ansys bridges the gap between optical and mechanical engineers as they explore sensor designs. Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. It is relevant for optical engineers as they consider how the optics in their design can be mounted which impacts performance, tolerances, athermalization, and host of other relevant issues. Applying the fundamentals is written for engineers and scientists who have some experience in the field of optics and want to know more about the details and derivations of equations used in optical design. The latest optical design news, features, products, and more from photonics media. After the import, the structure data of the optical system will be shown either as single surfaces, or can be combined into components in virtuallab fusion. Pdf athermalization of infrared optical system through wavefront. 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. Athermalization of optical systems in infrared inpressco.
The communication piece with the mechanical engineer became much easier, said robert mentzer, optical engineer and project lead at global surgical. Optical athermalization ppoa in theory, it is possible to minimize thermal defocus effects even if no active focal length compensation is performed on the liquid lens. A pioneer in the world of vision systems, neptec designs, develops and builds mechanical, hardware, and software for space, defence and industrial automation industries. Opticstudio is an optical and illumination design software tool. The thermal modeling capability also allows athermalization of a design. It is used for the design and analysis of both imaging and illumination systems. Longrange, highresolution camera optical design for. Radiant zemax sells zemax optical design software business. Catoptric systems catoptric systems exclusively use mirrors to form an image. For this reason chromatic aberration correction is usually accomplished with real ray tracing. Thermal modeling and athermalization in telescope optical design. Passive athermalization of an infrared optical system. The thermal modelling capabilities in zemax optical design software can model changes in refractive indices due to temperature changes and also the expansion. Simple methods of satisfying these equations for lens systems composed predominantly or entirely of plastic components are described.
Thermal lensing compensation objective for high power lasers michael scaggs1, gil haas2 1 neoteric concepts, llc, 1612 eastlake way, weston, fl 33326 2haas laser technologies, inc. Optical systems can consist of reflecting components, refracting components or a combination. The newly independent company will be headed by radiant zemaxs current vice president, mark nicholson, and will concentrate on its core customer and technology. Zemax delivers design software, training, and support services that set the highest standards for the optical and illumination industries. Whether there is any alternative open source optical simulation tool other than zemax.
Zemax is a company that sells optical design software. Solid understanding of the principles and methods of optical design including component selection, freespace layout, system tolerancing, and passive athermalization. Abstract the goal of this paper is to study in which extent the use of zemax is suited for athermalization purposes. Catoptric systems catoptric systems exclusively use mirrors to. The thermal modeling capabilities in zemax optical design software download from. Teaching lens, optical systems and optomechanical systems. After the import process, the structure data of the optical system will be shown as several components in. Neptec design group is an aerospace company that offers a diverse range of career and learning opportunities. Changing temperatures and extreme temperature ranges affect nearly all materials used in constructing telescopes, as well as the optical properties of the air in the immediate vicinity. Comparison of lenses thermal expansion formulation in. Telescopes are typically stored and operated over a wide range of temperatures. At my work, i have access to oslo, and im well aware of the capabilities of zemax. Oslo uses advanced software technologies to bring the power of windows into the realm of technical computing.
Professional best for designing optical systems like camera lenses and telescopes nonsequential capabilities. Wavefront coding technique as a means of athermalization applied to infrared imaging system, the design of phase plate is the key to system performance. Optimization technique of wavefront coding system based on. Initially, only zemax was used to evaluate the objective. Organized by subject, the book begins with the fundamental law of geometric optics, snells law of refraction, and states. An athermal analysis was modeled in zemax and figure 2 shows the needed optical package movement to maintain athermalization throughout the temperature range of. This means our designs are guaranteed to be manufacturable, with optimized costs and realistic deadlines, based on identifying the best costquality ratio among possible solutions. Proficiency with zemax does not guarantee success with modeling your optical system. Zemax is a comprehensive optical design software package, which has built an enviable reputation due to its outstanding capability. Opti 521 tutorial report passive athermalization of an. Does anyone know of any open source optical design software programs that are capable of running on linux. Examples of how passive athermalization is achieved for reflective and refractive optical systems will be discussed in the subsequent sections. Our expert optical engineers use the zemax software suite to design and optimize complex optical systems. Radiant zemax is a global leader in optical and illumination design software and test and measurement systems for lighting and displays.
Moreover, for optomechanical enginers the text provides valuable information about the design of robust mounts in optical applications. Optical systems that can be athermalized can consist of reflecting components. Zemax tutorial 1 lens data editor interface youtube. Ccl language supplied with oslo is more comparable to suns java or microsofts visual basic for applications than to the simple macro languages supplied with other optical design software. The thermal modelling capabilities in zemax optical design software can model changes in refractive indices due to temperature changes and also the expansioncontraction of components.
The lens can ensure compact structure, small volume and light weight. As is explained in the colored panel on partial passive optical athermalization ppoa, image defocus from thermal effects is reduced. The final aberrations were evaluated and optimized with the zemax commercial software. Optical engineer headwall photonics college of optical. The thermal modeling capabilities in zemax can model changes in. Pdf athermalization of infrared optical system through. Design of midwave infrared athermalization optical system. Radiant zemax has sold its zemax optical design software business to arlington capital partners.
Instructed junior level physics course in optical analysis and design using zemax 14, optics studio. By using zemax software for optical calculations, we design, develop and. Athermalization of infrared optical system through wavefront. So the athermalization becomes the difficult part and key factor in the designing of ir optical systems for working under temperature range of 20c60c. Its really the best solution for accurately simulating the realworld behavior of optical products. Optical design using zemax winlight winlight system. New importer streamlines the workflows of optical designs. Before doing any thermal modelling, make sure that the adjust index data to environment option. Athermalization of optical systems in infrared semantic scholar. In the optical athermalization method, all the lens groups have to be taken into consideration. Graphically selecting optical material for color correction. Import optical systems from zemax importing an o ffaxis optical system from zemax. 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. Proficient with zemax to design and analyze optical system designs for performance, including ability to analyze systemlevel characteristics such as spectral and spatial resolution.
Ray tracing methods for correcting chromatic aberrations. The correction of chromatic aberrations is typically performed using aberration formulas or by using real ray tracing. Lens design with computational software like zemax and codev are the norm now. By optimizing the system parameters of the given optical configuration, the maximum coupling efficiency is obtained by simulation. Premium best for complete optical product design like smartphones and satellites enables cad integration. While the use of aberration formulas might be effective for some simple optical systems, it has limitations for complex and fast systems. The thermal modeling capability also allows athermalization of a. Jun 15, 2019 the athermalized infrared imaging system mainly consists of a front objective lens, a back objective lens and a cooled infrared focal plane arrays irfpas, which is developed in zemax optical design software and schematically shown in fig. In this course you will learn to design and analyze optical systems using geometrical optics and. In this particular example, the beam is perfectly collimated and the optics flat so that the change in. Opticstudio can model changes in refractive indices due to temperature changes. The renderers are not optical design software but very. Athermalization of infrared optical system through. The lenses are designed from scratch, with global and local optimization algorithms provided in two different optical design software packages.
This paper apply the externally compiled programs of zemax to the optimization of phase mask in the normal optical design process, namely defining the evaluation function of wavefront coding system based on the consistency of modulation. Before doing any thermal modeling, we must make sure that all necessary operands affected by. If not, the index of glasses will not change as function of temperature. Equations are given for the condition that the focal surface of a lens system remain at a predetermined position for a range of ambient temperatures. Global surgical was able to bridge this gap using zemax virtual prototyping, which gives the engineers software that speaks the same language. The raytracing simulation software zemax is used to compute the lasertolenstofiber coupling efficiency, psf, and mtf. The free optical design program osloedu that is used extensively by.
Zemax provides download links to older versions and technical support for those versions for a limited time. For optical design software settings, it is sometimes easier to design an image side telecentric system. Top companies in aerospace, astronomy, automotive, biomedical research, consumer electronics, and machine vision, use opticstudio as their tool of choice. About this use case the following toolbox is required. This evaluation was conducted with the zemax commercial software, after the variables, zoom positions, and system. Zemax has a builtin function called athermal glass. How to model thermal effects using opticstudio myzemax. Prosource light source softwarezemax optical design software radiant imaging provides prosource software that enables the optical and illumination system engineer to view and analyze radiant source models in a variety of ways, as well as.
Zemax will be used to determine the change in focus through the expected temperature changes in earth orbit. Thermal lensing compensation objective for high power lasers. Zemax considers a linear geometric expansion of every optical surface, which is here proved to not be the best approach to find a deformed geometry after a thermal load. The newly independent company will be headed by radiant zemax s current vice president, mark nicholson, and will concentrate on its core customer and technology. Oct 05, 2011 introduction to zemax entry with the lens data editor. Introduction to zemax entry with the lens data editor. Zemax analyst radiant zemax llc college of optical. Achromatic triplet and athermalized lens assembly for both. The athermalized infrared imaging system mainly consists of a front objective lens, a back objective lens and a cooled infrared focal plane arrays irfpas, which is developed in zemax optical design software and schematically shown in fig.
Passive athermalization is beneficial in optical systems that are isolated from direct human contact or have limited access to power. Zemax software release policy as new versions of the software are released, older ones are phased out. Optical design software from zemax design imaging optics, lighting and illumination systems, and laser systems as the industryleading optical design software, opticstudio is used across a wide variety of industries, from aerospace and astronomy, to automotive, biomedical research, consumer electronics, machine vision, and more. Oct 31, 2014 radiant zemax has sold its zemax optical design software business to arlington capital partners. In googling to see whats out there, nothing really substantial has popped up. Opticstudio is the worlds leading optical, illumination, and laser system design software. This paper presents pair optical glass by using a graphical method for selecting. The speos lens system importer can bring any optical sensor design from zemax s industryleading optical design software, opticstudio, into speos simulation software. Ray tracing methods for correcting chromatic aberrations in. View scott sparrolds profile on linkedin, the worlds largest professional community.
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