Properties of optical systems i 20121023 herbert gross winter term 2012. For a refractive collimator this means that the optical design should be achromatic or apochromatic over the desired wavelength range. It was shown that the system should be applied in many civilian and military applications. For typical fiber optics, the numerical aperture na of 0. Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. Lighttools is a 3d optical design software that supports virtual prototyping, simulation, optimization, and photorealistic renderings of illumination applications. The collimator should be well corrected over the wavelength range of the optical system under test. 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.
To narrow can mean either to cause the directions of motion to become more aligned in a specific direction i. Optical design for the dlp pocket projector using led. Then we used the zemax optical design software to optimize the initial structure and normalized the optimized structural parameters. The ccd selfcollimating optical system was achieved by using the principle of ccd. The surface sag was analyzed by the commercial optical software package zemax. Acquired by eqt partners in 2018, zemax is headquartered in the kirkland, washington, area and has offices in the uk, japan, taiwan, and china. Please sign in to read the full article, or click here to request portal access. The focal length is 200 mm and the relative aperture is 1. Zemax is a company that sells optical design software. Method for laser source definition in zemax holo or. Beam collimation and focusing and error analysis of ld and fiber. Opticstudio has everything you need to characterize the led and to design optics around it. Basic training in zemax optical design software optical design using zemax, advanced optical design using zemax, and illumination analysis with zemax show more show less. Beam collimation and focusing and error analysis of.
A single lens made of k5 with focal length f 25 mm and thickness d 5 mm is illuminated by a diverging beam with numerical aperture na 0. Elento of radiant zemax notes that to improve the speed of design. By using optical simulation software, code v and zemax, the lens conform to the standards was well designed. The parameters of these lenses are represented in table 2. Pdf design and optimization of a collimating optical system for. A zemaxee version 2005 was used to evaluate the spot size at desired plane. Design of the wideview collimator based on zemax article in computer and information science 45. Zemax delivers design software, training, and support services that set the highest standards for the optical and illumination industries.
Tuomas vallius principal optical engineer microsoft. Fresnel lens as a collimator c negative focal length fresnel lens as a divergent 12. Goto optical design classic telescopes cloudy nights. Lighttools system and component design for nonsequential nonimaging designs such as projector collimators and led light shapers. Designing a planoconvex aspheric lens for fiber optics collimator. The ccd self collimating optical system was achieved by using the principle of ccd. Whether your design is imported from cad, a lens design program, or constructed from within the software, fred provides engineers with the essential tools for virtual prototyping of optical systems. A short video showing how an optical engineer uses zemax to create a lens design a collimator for an led. Opticsbuilder also allows cad users to share iso compliant optical drawings with a push of a button using an automatic design export tool. Optical design and tolerance analysis of a new offaxis. Although zemax is easy to use, optical system design is a. Lti optics provides photopia, the industries leading optical design software and optical analysis software for designing and analyzing illumination optical systems.
May 29, 2017 page 1 of 4 goto optical design posted in classic telescopes. Standardizing on zemax software reduces design iterations and repeated prototypes, speeding time to market and reducing development costs. Structural parameters optimum design of the new type of optical. Optical design software zemax, optical product design. In this design, the average light efficiency of three wavelengths led on dmd is 51. Design a fresnel lens photopia optical design software. These ruggedized modules are designed to collimate or focus light exiting an optical fiber to a desired beam diameter or spot size a specific distance away.
The exact focal length at the specified wavelength for each collimator is given in the tables below. Leading optical product design software for engineering. I am slowly trying to move past star testing as the. The design lies in a catadioptric rotationally symmetrical system, which modeling and optimization has been done by specific optical design software, zemax, and its development was. Demystifying the offaxis parabolic mirror zemax zemax. There is no much usable free software in optical design. Optical design for the dlp pocket projector using led light source wenshing sun, yenchen chiang, and chihhsuan ts uei department of optics and photonics, national central university, 32001. Winlens3d basic also offers zoom friendly graphics, multiple copies of graphstables, audit trail facilities, and. Dlip system optical modelling using zemax opticstudio software. Ive done them by hand in the past to get a feel for the drawing process, but even drawing them in graphical software. Dec 09, 2009 a short video showing how an optical engineer uses zemax to create a lens design a collimator for an led. Now i want to use a concave mirror to form an image of an point object with a realsize, for example 10nm et al. Free version of the winlens3d optical design package, which provides serious design and analysis tools for optical engineer, student or designer.
Exercises lecture optical design with zemax part 4 4. A collimator is a device which narrows a beam of particles or waves. In zemax software the fresnel lenses are radial and cylindrical, and only a beam collector is used as shown in fig. Professional heavyweights like zemax and codev are very expensive.
Sequentialmode, sequential, tilt, decenter, parabola, parabolic mirror, section, drill, drilled, oap, off axis, offaxis. Designing a simple optical system in lighttools liliana ruiz diaz december 08, 2016 college of optical sciences, university of arizona, tucson, az usa 85721 1. The assignment of the focal power is optimized by the software of zemax and the final design result is obtained. Designing a planoconvex aspheric lens for fiber optics collimator article in optics and lasers in engineering 502. Opticstudio has everything you need to characterize the led. This is a fast and efficient way to get to a working design. I have read the long threads by nave and choran on their goto telescopes and the contributions by those that know what theyre doing when testing optics. Collimator array for singlemode optical fiber preliminary. In illumination and lighting system design, we frequently use surfaces that conform to no underlying parametric function, but are simply defined by a data set and some smooth curvefitting.
In this article, we demonstrate gridbased sag optimization of the truefreeform surface in designing a wedge prism for arvr applications, greatly improving imaging quality for the eyetracking subsystem. This paper presents the design of an efficient collimating optical system for an extended light source, namely a highbrightness high divergence light emitting diode led, sized 1x1mm, and viewing angle of. The aspheric collimating lens is used to collimating focusing. Designing a planoconvex aspheric lens for fiber optics. Photopia optical design software works alone or is an addin to solidworks, allowing full optomechanical integration. The design lies in a catadioptric rotationally symmetrical system, which modeling and optimization has been done by specific optical design software, zemax. The opticstudio optical design software by radiant zemax, mentioned earlier, is an example of an optical design package that has illuminationsystem design capabilities built in. Optical design for the dlp pocket projector using led light. Optical design using zemax winlight winlight system. This article describes a reallife assignment that required an oap to be used with an existing optical system.
Ive done them by hand in the past to get a feel for the drawing process, but even drawing them in graphical software can be beneficial. Noncircular optics for lidar and other cuttingedge technologies. Advanced handling 20628 herbert gross summer term 20. Although leds are complex, we usually start with single rays in order to generate a system that is approximately correct. Freeform lens design for led collimating illumination. Realtime illumination simulation zemax breakthrough feature duration. Freeform lens design for led collimating illumination jinjia chen,1, teyuan wang,1 kuanglung huang,2 teshu liu,1 mingda tsai,1 and chintang lin1 1 department of electrical engineering, national changhua university of education, 2 shida road, changhua.
Our triplet fiber collimators are available from stock with alignment wavelengths ranging from 405 nm to 2. The design of the optical camera has selected ritcheycassegrain type and performed by using zemax optical design software. In view of the poor beam quality, the zemax optical design software is used to simulate the far field characteristics of the semiconductor laser. Collimator array for singlemode optical fiber preliminary ar coated microlens precision alignment and strain relief fiber pitch fiber length advantages high performance exceptional beam quality, low insertion loss, excellent pointing accuracy low cost extremely small size and high density. Optical design of thermal imaging camera in mwir band 35. Dec 07, 2016 leds illuminate over a wide angular range, and this can be a problem when you need a narrow angular range for things like flashlights. Nov 21, 2019 method for laser source definition in zemax to enable realistic modelling with raytracing alexander brodsky and natan kaplan holoor. The fused collimator consists of a pm fiber that is laser fused to a c type lens. Exercises lecture optical design with zemax part 4 4 aberrations 4. Interested in using opticstudio, download the free trial. The system which is composed of four lenses can image in both 3. In collimator the fiber is placed at the focus of the collimator lens so the output rays will be parallel to the optical axis. The system has the characteristics of small volume and compact structure.
Secondary optics design considerations for superflux leds. Designing the optimal fresnel lenses by using zemax software. 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. The structure of the collimator is shown in figure1. Zemax is used to simulate the properties of ld beams. Novel fiber fused lens for advanced optical communication systems. Apochromatic collimator objective lens design with big field.
Design and optimization of a collimating optical system for high divergence led light sources. Secondary optics design considerations for superflux leds introduction secondary optics are those optics which exist outside of the led package, such as reflector cavities, fresnel lenses, and pillow lenses. Leds illuminate over a wide angular range, and this can be a problem when you need a narrow angular range for things like flashlights. Design and optimization of a collimating optical system for. Pdf design and optimization of a collimating optical system. This video shows how to design an achromatic doublet in zemax this video builds upon the knowledge of how to solve for crown and flint focal lengths or radii if shape factor is selected. Fred optical engineering software simulates the propagation of light through any optomechanical system by raytracing. Zemax system and lens design for sequential systems such as camera lenses. With four of these fine telescopes in hand, i find that discussion of the optics generally points to a rather unique design. We started with the basic science requirements of wanting a spectral resolution of approximately 2000, and a wavelength range spanning 600nm.
A 100 mm clear aperture collimator would be suitable for testing this lens. In order to evaluate the propagation rays of solved planoconvex aspheric lens with commercial optical software package, the surface data were fitted to an even aspheric surface by eq. The software of zemax is developed by focus software inc. For the images, i am using the optical design software zemax, but i havent found a good illustration software that handles the drawing of lenses well. It is used for the design and analysis of both imaging and illumination systems. Pdf design and optimization of a collimating optical. We report on a novel fused collimator design as part of a transmitter optical sub assembly tosa used for agile microwave photonic links. By using zemax software for optical calculations, we design, develop and optimize. We also wanted to keep the design as simple as possible, in order to keep construction costs low. Zemax has introduced opticstudio 14, the latest version of its software for designing 2d and 3d models of optical and illumination systems. Since the output of a laser diode is highly divergent, collimating optics are necessary. Since aspheric lenses do not introduce spherical aberration, they are commonly chosen when the collimated laser beam is to be between one and five millimeters. This is a nonsequential software that allows to create and modify illumination system designs and allows for further optimization 1.
Matlab sometimes optical problems require some math intensive modeling. The optical performance analysis of the optical design is also discussed. What is lighttools lighttools is a 3d optical design software that supports virtual prototyping, simulation. In this paper, the major qualifications were first proposed to design the collimator objective lens,according to which the initial configuration was confirmed. The optical system image quality is evaluated with zemax optical design software.