Optical design considerations for automotive lighting with. These lenses are often called tir lenses as a big part of their design relies on total internal reflection. Surefire x300 ultra series led weaponlights with tir lens this enhanced version of surefire x300 ultra now delivers a stunning 1,000 lumens of ledgenerated output focused by a precision tir lens, creating a farreaching highintensity beam with a larger center spot that offers the power to positively identify threats at significant. 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.
The german optical systems manufacturer, carl zeiss, has had a 168 year legacy in creating some of the worlds best lenses. Light rays propagate through the model with portions of the flux of each ray allocated for absorption, specular reflection and transmission, fluorescence, and. Optics mix all colors smoothly over the beam, while maintaining tight beam control. As do some other led illumination optics, the u of a design combines refractive and reflective via total internal reflection, or tir surfaces see. Choosing the right optical design software is about more than just the software. The angular width the tir lens produces is usually specified by measuring the angular separation between the directions, at which the intensity has fallen to half its peak value. 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. Create models by directly creating the solid geometry in tracepro or by importing from a lens design program or a cad program. How to use collimator tir lens and light guide synopsys. 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. These design concepts can be combined in three different ways for led applications.
Designs have multiple aspheric curves as small as 10 microns. Also, this method can be used to design concentrated photovoltaic cpv system without secondary optics lens soe. Tutorials for photopia for solidworks optical design software. Lens design with computational software like zemax and codev are the norm now. Tracepro is awardwinning optomechanical design software for layout, optimization. Using the led raysets and zemax software ofh designed a lens to meet us coast guard.
This tutorial assumes you know how to setup and run a photopia analysis inside of solidworks. Secondary optics design considerations for superflux leds. Tir properties are used in the prism of an hmd lens, and an hud uses a reflector to image a display into. The synopsys optical solutions group osg, formerly optical research associates ora, has been providing worldclass support to our code v customers for over 40years. Each tir lens has an led with rgbw in a single tir lens to minimize rainbow edges in shadows. Photopia optical design software works alone or is an addin to.
Measuring resolution micron tir, depending on the lens specs and optomechanical design. What is lighttools lighttools is a 3d optical design software that supports virtual prototyping, simulation. Furthermore, the energy utilization rate is higher than 85%. This course provides a comprehensive introduction to the opticstudio nonsequential design environment, and is intended for those working on illumination systems or evaluating stray light in imaging systems. And this is all human based lens design where the fun part, and most important part, comes before we do any computer optimization. The following is a representative sample of systems we have developed. The aim of this paper is to design tir lens in collimating light emitted from a surface mount. Ten years ago, the typical lens system used lenses placed on top of led arrays to produce the angular output needed for the specified uniformity on the street or roadway. Designing a simple optical system in lighttools liliana ruiz diaz december 08, 2016. Integrated vacuum wand with vacuum cup for lens handling. Typically tir lenses are rotationally symmetrical designs.
A205 secondary optics design considerations for superflux leds application rief 2015 lumileds holding all rights resered. For more information on the design and manufacturing of linear led lens and to learn more about our other products and. A flat lens is sometimes called a window and although it does not have a lens shape, most people still call it a lens. Optical design consulting from the makers of photopia. Optimax systems, 6367 dean parkway, ontario, ny usa. Wide angle tir lens kit for ecotech marine radion xr30w led. As compared with the tir lens in 11, the collimator lens in this. Tir optics designed around the phenomenon where light traveling from one medium to another of lesser optical density hits the interface at an angle and reflects with 100 percent of the beam energy, tir optics, or tir lenses, consist of a refractive lens nestled inside a reflector and are typically coneshaped with optical efficiencies as high as 92 percent. Answers to commonly asked questions about optical design, lens design, lens requirements and optics software. Our manufacturing supply chain matches volume, material, and design to your needs. Calculens assembly software for measuring alignment errors of top two surfaces. In this paper, total internal reflection tir lens for a micro optical led application is proposed. Thintechs ultimate cuttingedge digital surfacing technologies produce superior products for the eye care marketplace.
Optimization of led lens components using tracepro illumination design and analysis software 6 the reflector concept uses reflective material, typically metal or coated glass, with a specified profile to guide and shape the light. In the current days, as most of us know, technology has developed to a great extent and for helping out the manufacturers dealing with light reflector design, there are software programs to help them out in the process of manufacturing. Need design or manufacturing of custom tir lenses, lightpipes. Increase the spread of light on your ecotech radion with the wide angle 120 lens kit. Designs have multiple aspheric curves as small as 10 microns wide depending upon the shape of the cornea.
By using 3d optimizer, you can optimize the shape as per target requirement of viewing angle and beam profile. Depending on requirements such as wavelength range, field of view and resolution a telecentric design will have different quantity, size and material used for. Software for design and analysis of illumination and optical systems. Led simulation reflector lenses led reflector and lens simulation using tracepro illumination design and analysis software 3 light source models can run the gamut from simple to complex. According to the ray tracing results obtained using tracepro simulation software and dialux lighting design software, the asymmetrical lens formed an asymmetrical triangular light distribution with an led light source and enhanced the illuminance uniformity by 29 %, improving the light quality of museum exhibits. Freeform led lens design approach produces high uniformity. Led coolers from jaro thermal are forged from aluminum. Design examples photon engineering optical software. In this paper, we propose a novel technique to design flat fresnel lens to achieve big concentration ratio, high uniform irradiance distribution while keeping fnumber small using both refraction and total internal reflection tir phenomena. Tracepro70 is used to simulate and verify the performance of tailored illumination. Using the led raysets and zemax software ofh designed tir lenses with different beam angles in the same form factor. Carclo optics design and manufacture optics and reflectors for the led lighting industry. In this tutorial you will use a planoconvex lens to. Meanwhile, the edge point data of lens are imported into the optical simulation software tracepro.
Tir optics the full range of standard optics, reflectors. A short video showing how an optical engineer uses zemax to create a lens design a collimator for an led. Design of asymmetrical total internal reflection optics with. The peak intensity value should be at least 8 times the intensity at nadir to ensure even illumination from the center outward, thus avoiding a hot spot under. Oct, 2014 tir optics designed around the phenomenon where light traveling from one medium to another of lesser optical density hits the interface at an angle and reflects with 100 percent of the beam energy, tir optics, or tir lenses, consist of a refractive lens nestled inside a reflector and are typically coneshaped with optical efficiencies as high as 92 percent. In addition, the lens in this paper is more easily fabricated than that in 11 due to an acute angle existing in the latter. Mar 16, 2016 according to the ray tracing results obtained using tracepro simulation software and dialux lighting design software, the asymmetrical lens formed an asymmetrical triangular light distribution with an led light source and enhanced the illuminance uniformity by 29 %, improving the light quality of museum exhibits. Though this method has been used to design a tir collimator lens 11, the detailed and complete outline of the method is given in this paper, and an application to a. Tir lenses are characterized by how wide a beam they produce.
A comprehensive guide to camera lens design and zeiss nomenclature. 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. Freeform led lensdesign approach produces high uniformity. Optical design of a freeform tir lens for led streetlight. Today, it has been accepted as a standard tool by companies throughout the world that use it to create better, lowercost designs and manufacture them more efficiently. Zemax delivers design software, training, and support services that set the highest standards for the optical and illumination industries. Software for design and analysis of illumination and. Surefire x300 ultra series led weaponlights with tir lens. Illumination design consultants including prototyping and production of custom lenses and reflectors, light pipes, tir lenses, and many more. It is inbuilt feature of traceprousing 3d optimizer.
Great for more shallow tanks up to 24 deep seeking a wider spread and less penetration or where one radion is not enough but two radions would be too much. Design tir lens modellingtir lens using traceprois very easy. One of the most actively developed uses for freeform optics right now is as light collectors and uniformizers for spotlight and directionalfloodlight generalillumination leds. In this paper, an optical design approach of a freeform tir total internal reflection lens for the led streetlight is investigated. The value is called the full width half maximum fwhm divergence. Nasse wrote a series of technical papers for carl zeiss detailing their modern lens history and. Plastic lenses are more resilient than glass and can be useful if the light will get knocked around and take some abuse. Freeform lens design for led collimating illumination. Dec 09, 2009 a short video showing how an optical engineer uses zemax to create a lens design a collimator for an led.
Photopia tutorial design a tir collimator lens lti optics. Lighttools is a complete 3d optical engineering and design software product that supports virtual prototyping, simulation, optimization, and. Total internal reflection tir lens design for surface. Topics include optical design, optical engineering, illumination, laser, optical materials, thin film coatings, and many more subjects needed to build and analyze complex optical systems. Tir optics are often used in lights with 3 or 4 leds. Wave software recommends a starting custom lens design regardless of whether its a single vision, front surface multifocal toric or bitoric, ortho k, toricortho k, toric, bitoric lens or free form asymmetric lens. Optical design considerations for automotive lighting with leds strategies in light workshop february 2003 waqidi falicoff, lpi. Oslo is a powerful optical design program with the scope you. Dec 30, 2014 a comprehensive guide to camera lens design and zeiss nomenclature december 30, 2014 edward t. Design examples photon engineering has partnered with clients on hundreds of successful consulting projects ranging from an observatory spectrometer to a human tissue scanner.
Parameters include surface profile types spherical, aspheric, holographic, diffractive, etc. Optimization of led lens components using tracepro. Development of the most advanced online calculation engine this technology creates customized highbase lens design at the backside of a lens. A comprehensive guide to camera lens design and zeiss. As the study object, the led track lighting has been designed with secondary optical design by the lighttools design software. Links on optical design and engineering the purpose of this site is to provide a comprehensive list of links related to optics and optical simulation in general. A typical tir lens looks like a cone with a hole where the point should be extending about halfway through the lens. Total internal reflection tir lens design for surface mount.
Tracepro is awardwinning optomechanical design software for layout. This hole fits over the led and any rays that strike the flat bottom of the hole will go straight out the front, giving a small hotspot. The mechanism, thermal management, and the power control electronics of the led streetlight become very simple. Petzval corrected give tir for larger field angles. Light rays propagate through the model with portions of the flux of each ray allocated for absorption, specular reflection and transmission, fluorescence, and scattering. How to choose tir lenses for high power leds 612photonics. Tracepro is awardwinning optomechanical software used for design, analysis, and optimization of optical and illumination systems. It was the first software to demonstrate that serious optical lens design could be carried out using desktop computers. The simplest led source model is a point source where all rays are emitted from a single point. The tir lens concept uses total internal reflection tir rather than. With its powerful psd algorithm, synopsys can do in one second a.
Few examples of such projects are linear led lenses for led spotlights and led floodlights, under the kitchen cabinet lighting, flashlight with tir lens, architectural applications like grazing a surface in wall lighting, etc. Design a tir collimator lens in this tutorial you will design a narrow beam tir collimator lens using the parametric optical design tools podt and the cree xpl led. You can see how a new design can evolve around a simple starting point idea or structure. A novel technique to design flat fresnel lens with uniform. Design of tir collimating lens for ordinary differential. Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Our software and lens design technologies offer superior performance and revenue.
Design of asymmetrical total internal reflection optics. In this tutorial you will design a narrow beam tir collimator lens using the parametric optical design tools podt and the cree xpl led. Some lens design methods dave shafer david shafer optical design fairfield, ct 06824. The abovementioned technology for calculating the discrete data of the asymmetrical tir lens can be implemented in matlab r2016b software, then import these data into solidworks 2011, a model of tir lens can be obtained. Design a tir collimator lens inside of solidworks using photopias parametric optical design. The whole led streetlight can be constructed if only mounts these led modules on the planar pcb plate. As compared with the tir lens in 11, the collimator lens in this paper has better optical efficiency and smaller spot size under same lens dimensions. Howtodesign tir lensfrom trace pro optical software. These software programs are used for optical calculation and reflector design with mirror surfaces.
Lighttools is a 3d optical design software that supports virtual prototyping, simulation, optimization, and photorealistic renderings of illumination applications. Pdf the secondary optical design and fabrication for the. Software integrity semiconductor ip verification design silicon engineering. Offaxis requirements style for a design may require the use of unusual optical approaches to. Synopsys is one of the largest and most powerful lens design programs in the world, with features found nowhere else.
In this tutorial you will design a wide beam lens with a peak beam angle around 65 using the parametric optical design tools podt and the cree xpl led. Oslo is a powerful optical design program with the scope. The most common delivered designs are custom tir lenses and reflectors. Oslo optics software for layout and optimization is a powerful optical design program with the scope needed to meet todays optical design requirements. With its powerful psd algorithm, synopsys can do in one second a job that takes other programs more than an hour.
The custom design of a telecentric lens requires the use of ray tracing software such as zemax as well a mechanical design software to create the lens element mechanics and lens barrel. Attendees will acquire the skills to design, optimize, and tolerance systems through handson exercises. In addition to classical lens design features, it combines advanced ray tracing, analysis, and optimization methods with a highspeed macro language to solve a wide variety of new problems. Light source, size constraints, beam pattern, illumination shape and production volume all are useful data points that can impact a design. Design of tir collimating lens for ordinary differential equation. Design a tir collimator lens photopia optical design software. The optimal design of tir lens for improving led illumination uniformity and.
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