While advancements in the field over the past two centuries have done much to transform it from the former category to the latter, much of the lens design process remains encapsulated in the experience and knowledge of industry veterans. Fredos full aperture, 5mm why are lenses so complex. The process of designing lenses is both an art and a science. Apr 18, 2019 optical design of multimaterial, general rotationally symmetric grin lenses andrew m. This product provides a high degree of flexibility in frame frequency, user interface and temperature range to make it adapt to various industrial environments and the harsh working environment in the wild. Lightworks optical systems has expanded its line of owlir fixed focus radiometric objective lenses with the release of the new f2 athermal mwir lens. My notes from the book introduction to lens design. Pdf in this work, the optical design of a compact diffractionlimited f3. Hyperion optics offtheshelf midwave mwir lenses feature cooled technology, which offers very high sensitivity and better transmission. Each chapter is a great introduction for a specific optics subspecialties. Designed for integrators, the neutrino lc is compact and configurable, weighing in at only 380 grams with a steady power consumption of book is devoted to a study of possible design procedures for various types of lens or mirror systems, with fully worked examples of each.
Ball lens, gradient optics, and three mirror configurations have been added to the chapter on special optical surfaces and components. This detector allows several modes of operation, imaging in both swir and mwir bands simultaneously and detecting laser designator spots 1. Although i have taken a great deal of effort to assure accuracy, the user of any of. Compact, wideangle catadioptric telescope design for mwir imaging. Ir lenses maximize detector potential vision systems design. The following discussions are organized by subjects, starting with a thin lens and progressing to increasingly more sophisticated components and multielement systems. Note that this compact reference is not a substitute for a. Overall atmospheric transmission the overall atmospheric transmission depends on the local atmospheric constituents aerosols, particles, water vapour, fog, rain etc. We can see that for each of the even aberrations, s 1, s 3, s 4, and c 1, the outer, positive lenses have a positive coefficient, and the inner, negative, lens has a negative coefficient. Lsw lens, mwir lens, lwir lens, ir2fv lens double filed view, ir objective lens, ir athermal lens, swir lens, ir zoom lens series. Not a must have book, but nice to have on your bookshelf. Achromats are covered in more detail, with an updated discussion of beam expanders.
Optical design of an aperturedivided mwir imaging polarimeter. The ultimate guide to lens design using the classic. The swir spectrum is an ideal choice for a variety of applications, including solar cell inspection, security, and biomedical imaging. Actual product diagram of f50250 twostep zoom system. Infrared lens, zoom lens, mwir, lens design, aspheric surface abstract. The basic theory and results of optics are presented early on in the book, along with. Compact, wideangle catadioptric telescope design for mwir. These objectives are design, built, and tested in the usa for high optical performance. Mounting of optical components university of arizona. Wavelength optoelectronic offers variety of ir camera lens for defense, flir system, and surveillance application. In this work, the optical design of a compact diffractionlimited f3.
Lens design optical sciences and applications of light. And this is all human based lens design where the fun part, and most important part, comes before we do any computer optimization. Optical design, zoom lens, infra red lens, mwir, diffractive optics 1. Lens design fundamentals rudolf kingslake, applied optics and optical design part 1 and part 2 a. Chapters relevant to lens design include doug goodmans chapter on generic principles of geometric optics, glenn boremans chapter on transfer function techniques, barry johnsons. Optical design fundamentals for infrared systems max j.
Lightworks optical systems expands owlir product line to. Design for near and distant viewing distances is essentially identical. Pdf refractive dual band infrared imager optical design. Several practical examples of modern computeraided lens design are worked out in detail from start to finish. Conrady in applied optics and optical design and rudolph kingslake in lens design. Not only is this a great book for an optical engineer to have at their fingertips, it is the most concise and informative book to quickly approach the professional use of modern optical software. Pdf compact, wideangle catadioptric telescope design. We have our standard design but we also offer customized design to meet our customer needs.
She has spent much of her career teaching software based optical design and analysis courses to more than 5000 students worldwide. A course in lens design is an instruction in the design of imageforming optical systems. Indium gallium arsenide ingaas focal plane arrays fpas are advancing technically all the time. Short wave fixed focal length lenses are the best choice for use with swir cameras. Of this energy, 527 watts is infrared radiation, 445 watts is visible light, and 32 watts is ultraviolet radiation. With over 500 offtheshelf lenses, mirrors, windows, filters, polarizers, beamsplitters, and prisms specifically designed for applications in the mid wave mwir and long wave lwir infrared spectra, our components have been designed into countless defense, manufacturing, machine vision. Athermal mwir lenses provide greater application capability to commercial market murrieta, cajanuary 28, 2014lightworks optical systems, inc. On optec website, on the proper page, the customer can download the certificate at any time by entering the part number and the serial number of the purchased lens.
This is an l3 cincinnati electronics l3 ce designed and fabricated 1,280 x 1,024 reticulated insb midwave infrared mwir sensor, mated with a continuous zoom 200 to 1,200 mm lens and our enhanced image processing features, allowing the user to achieve mandetection capability at ranges beyond 30 km. The book not only covers theory of lens design but the author also delves into the math using practical examples. This text 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. Optical engineers working in lens design will find this book an invaluable guide to lens design in traditional and emerging areas of application, it is also suited to advanced undergraduate or graduate course in lens design principles and as a selflearning tutorial and reference for the practitioner. Mwir long range cooled 35um micron zoom thermal flir.
From simple thin lens design, clear overview of optical aberrations, designing in zemax and professional production and tolerancing, this book can. Swir lenses can be used in a variety of applications including solar cell testing, outdoor night vision imaging security application, fruit surface. Lens design fundamentals, second edition, is the most comprehensive treatise to be published on the subject of lens design. Midwave infrared mwir flir thermal camera cores flir.
Techspec swir series fixed focal length imaging lenses are compact, lightweight lenses designed for applications operating in the shortwave infrared swir spectra, ranging from 0. The lens prescription for the geznsege triplet lens shown in fig. These lenses can be equipped with a standard bayonet mount or an optional custom mount interface. Right now, the world is waking up to the advantages of shortwave infrared swir imaging for some very good reasons. The people at lightmachinery are veterans of the laser and optics world with many years of experience in the areas of optical design, high power lasers, optical fabrication, laser systems, metrology, thin film coatings and custom machinery fabrication. Design examples of several widely used modern lenses are provided. Geary, some miscellaneous notes on zemax, and some notes based on zemax knowledgebase articles with proper links and attribution of course. Introduction to lens design with practical zemax examples pdf. Lens files for the optimized airspaced geznsege and. Each lens can be customized or designed to meet customer specifications. As i described in a paper at the 2014international optical design conference, this class of optics is interesting be they are of a reasonable complexity that the designs are likely to be instructive, they offer a small range of design constraints because of the standardization of cmos imager sizes. You can see how a new design can evolve around a simple starting point idea or structure. Edmund optics is leading the way in providing standard infrared optics to oems and researchers alike.
The book introduces geometrical optics, optical instruments and aberrations. It teaches how a satisfactory design can be obtained in a straightforward way. Mwir or lwir thermal cameras for surveillance applications. A lowkey textbook that covers material most graduate students would learn before moving on to computeraided optical design. Rudolf kingslake is regarded as the american father of lens design. Mwir series is a range of mediumwave infrared lenses specifically designed to operate in the 35. The lens design was performed with a cooled multifunction multiband detector developed by semi conductor devices scd, or similar multiband detector, in mind 9. The book begins with the derivation of the fundamental law of geometrical optics, snells law of refraction, and states the paraxial ray trace equations. Because the optical design process is historically and quite practically closely related to ray optics, this book is intended as a companion to the field guide to geometrical optics, in which firstorder optics, thin lenses, and basic optical systems are treated in more detail. This note provides an introduction to optical science with elementary engineering applications. Fisheye lens designs and their relative performance. Infrared ir, sometimes called infrared light, is electromagnetic radiation emr with wavelengths longer than those of visible light.
Design and simulations to design a binary fresnel lens, we can consider the whole. At zenith, sunlight provides an irradiance of just over 1 kilowatt per square meter at sea level. Instead of a charge coupled device that video and digital still cameras use, the ir camera detector is a focal plane array fpa of micrometer size pixels made of various materials sensitive to ir wavelengths. Automatic and quasiautonomous computational methods and techniques is the first book that interactively describes the newest modern lens design tools. We stock lwir lenses for our uc320 product, mwir lenses for our rc320 product and swir lenses for our nir320 product with a wide range of focal length choices to optimize performance for a given application.
The total length of the geznsege triplet lens is shorter than the sigesi triplet lens by 47. The aspheric design enables a single lens to replace complex multiple component optical system. A practical guide to lens design focuses on the very detailed practical process of lens design. Telic optics proposes to design a compact infrared zoom lens which uses aspheric and diffractive lenses in a stateoftheart configuration to meet or exceed the solicitation requirements for an mwir, f4. Optical design study and prototyp ing of a dualfield zoom. Optical window design for mwir camera article pdf available in journal of physics conference series 11. Smith, and optical system design robert fischer, introduction to lens design. Field guide to lens design 2012 bentley publications. This lens has much less astigmatism than either conventional triplets or tessars and can. Get lens design fundamentals pdf file for free from our online library pdf file. Design and fabrication of a midwavelength infrared. The handbook of optics, from the optical society of america, is a tremendously valuable resource for all optics practitioners. This lens is characterized by a triplet construction followed by a rear element that is strongly meniscusshaped, convex to the image plane.
Lumitron offers our customers a wide range of offtheshelf optical solutions for each of our camera products. Introduction in a prior paper we reported the design of a mwir continuous zoom with significant zoom range 30x 1. This book is different from most other books on lens design because it. Introduction to lens design with practical zemax examples by. Iivi os also provides customized imaging lenses engineered and built to customer requirements for the vis, swir, mwir, and lwir. Lwir series is a range of longwave infrared lenses specifically designed to operate in the 814. Owlir f2 lenses feature a narrow to wide field of view, an image diagonal. An interesting new wideangle lens type is a fourcomponent form found commonly on the socalled compact 35mm cameras. Optical design and stray light concepts and principles. Burge 8 issues with the sharp corner provides highest accuracy, and is easy to verify potentially large contact stresses for most applications, these will not cause any risk sharp corners are susceptible to damage or to burrs standard practice of breaking corners will result in loss of accuracy sharp corner with radius 0. It is therefore generally invisible to the human eye, although ir at wavelengths up to 1050 nanometers nms from specially pulsed lasers can be seen by humans under certain conditions. A thermal imaging continuous zoom system is developed with light weight for airborne optoelectronic detection and tracking. The fabrication processes and measurement results are presented to demonstrate that pmma is a feasible solution for costeffective mwir lenses.
Theory is limited to a minimum, and used to support the practical design work. Iivi, is pleased to announce the expansion of the owlir line to include a series of athermal f2 midwave infrared mwir fixed focus objective lenses. Naturally, the area has developed considerably since the book was published, the most obvious changes being the availability of powerful lens design software packages, theoretical advances. All are for folded zooms, which provide an interesting study. Every step from setup specifications to finalizing the design for production is discussed in a straight forward, tangible way. 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. In the design of any lens for ir applications, says kane, it is important to match the spectrum of the detector device with the material of the lens. The 2d layout for the sigesi triplet lens is similar to the design shown in fig. Lightworks optical systems releases f2 mwir fixed focus lens. In this paper, we design an aperturedivided optical system of mwir imaging polarimeter, which consists of one coaperture front galilean telescope, four subaperture doublegauss objectives and one coaperture cooke triplet relay lens. Materials for infrared optics melanie saayman opti 521 tutorial 1. Click on document introduction to lens design with practical zemax examples pdf.
The percival philosophy is similar to that used in modern spectacle lens design. Jan 01, 2006 this title is directed primarily towards health care professionals outside of the united states. These lenses can also be equipped with custom mount interfaces. Handbook of lens design optical science and engineering. For example, out of the 15,100 us patent designs, the leading optical design database lensview optical data solutions, ny does not include any 35 mm fisheye camera lenses us patents. Its not so easy to send light where it should go source.
Thanks to superior engineering capabilities, and by upholding the highest manufacturing and iso standards, we hereby present our wide range of commercialofftheshelf cots high performance ir thermal imaging optics. Textbooks for your course may be purchased from any vendor or bookseller of your choice. As an example, contributions of each of the lenses in a thin lens design are listed in table 10. Many products that you buy can be obtained using instruction manuals. There are also many useful figures to help visualize the main issuesconsiderations of lens design. Thermal imaging lenses these janos technology thermal imaging camera lenses are designed to operate within the three main regions of the infrared spectrum. Optec swir lenses are tested and certified one by one. Mwir systems are less affected by humidity than lwir systems for most target ranges, so we would usually recommend mwir cameras for applications. The fundamental optical design has also been found to be capable of accommodating different camera formats focal plane array size and f number. Pdf compact, wideangle catadioptric telescope design for. Detailing design methods for a variety of lens forms, this book shows that fixed focus and zoom lenses can be optimized, starting from planeparallel surfaces, in a brief time on a modern fast pc compared to traditional tools that. When your application requires perfect vision, you know where to turn. Active athermalization involves motors or other active systems to mechanically adjust the lens elements position, while passive athermalization makes use of design techniques aimed at compensating for thermal defocus by combining suitably chosen lens materials and optical powers optical compensation or by using expansion rods with very. The sigesi triplet lens design can be used for the mwir and lwir spectral bands, whereas the geznsege triplet lens can be used only for the lwir spectral band.
The author has expanded the information found in his practical 1995 tutorial. Introduction there are numerous glass types available for the visible spectrum, but there are only a small number of materials that can be used in the mwir midwave infrared and lwir longwave infrared spectral bands. This repository contains my own notes made from the book introduction to lens design by joseph m. Certain applications may require imaging in a specific infrared spectral band due to the nature of objects being viewed. It adds impressive building blocks to the foundation established by a. The reader is urged to follow the logic of these examples and be. This book holds a unique place in the optics literature. Our premier range of ir lens for cooled and uncooled camera system includes. In lens design with large computers, proceedings of the conference, institute of optics, government superintendent, rochester, new york. Offtheshelf midwave mwir lenses feature cooled technology, which offers very high sensitivity and better transmission. Spie 10998, advanced optics for imaging applications. A certificate of conformity coc accompanies each lens. Key lens parameters and the operation spectral band for the geznsege and sigesi airspaced triplet lens designs are tabulated in table 1. These lenses feature swiroptimized optical designs, glass types, and ar coatings from 0.
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