The zemax program has been used for optical simulation. A diffractive axicon da is a kind of diffractive optical element doe that transforms a laser beam into a ring shape a bessel intensity profile. The comprehensive product range from asphericon offers a customized solution for your application. Jul 29, 2016 the combination of convex lens and axicon lens was known to transform the wavefront of a point source into a bessel beam, which has the special property to propagate without diffracting. The polarization of the gaussian beam transmitted through a lens at the exit of the. Leading optical product design software for engineering.
Modeling of the propagation of bessel beams in a uniaxial. All that you will simply need is a usb to micro usb adaptor. The axicon 15000 series verifier is designed to work with any pc running a currently supported version of windows windows 7 and windows 8 both 32 bit and 64 bit versions. Zemax announced the latest release of their flagship software, opticstudio. An axicon, also known as a rotationally symmetric prism, is a lens that features one conical surface and one plano surface. Natsume optical corporation noc can achieve down to 5 arc seconds of angle accuracy and produce a very sharp conical tip by utilizing correction technology such as magnetorheological finishing mrf. People used to say codev oslo zemax but im sure its probably codev zemax oslo now. Proteep mallik opti 696bx 12705 university of arizona.
Collimated light incident on the plano side will be expanded into a ring, or create a close estimation of a bessel distribution dependent on positioning. Conventional axicon lenses are conical prisms that bend light via refraction fig. Solution of exercises lecture optical design with zemax part. An axicon lens has the ability to transform a laser beam that passes through it perpendicular to and at the center of the flat side, resulting in a perfect cone of laser light, the angle of. It also contains the files with data for thorlabs optical coatings. Color online zemax simulation of focusing by a, refractive axicon and b, fresnel axicon. Now insert between the lens and the axicon a negative axicon, which diverges the light. While these devices are commercially available, they are bulky, difficult to manufacture, operate only within the transparency window of the lens material, and cannot generalize to produce higherorder bessel beam responses. The axicon lens is a specialized lens that bears a conical surface. An axicon images a point source into a line along the optic axis, or transforms a laser beam into a ring. When converting a collimated beam into a ring, the plano side of the axicon should face the collimated source.
Authored by namhyong kim, updated by alissa wilczynski abstract. How to design a gaussian to top hat beam shaper zemax. They are commonly used to create a beam with a bessel intensity profile or a. Zemax axicongenerated bessel beam, with fft psf cross. Umicore laser optics axicons are made from lasergrade. Light tools made by same company as codev, zemax nonseq, fred. Solution of exercises lecture optical design with zemax. We also offer zemax files for individual products for download from the support documents section of each product webpage. Natsume optical corporation noc can achieve down to 5 arc seconds of angle accuracy and produce a very sharp. The combination of convex lens and axicon lens was known to transform the wavefront of a point source into a bessel beam, which has the special property to propagate without diffracting. Each diffractive axicon lens is defined by its ring propagation angle. The axicon 6000 series barcodes verifier is aimed at verifying small size linear barcodes, max 72 mm, used in general distribution of retail products ean, ean8, upca and upce, gs1 databar, on pharmaceutical products code 39, italian pharmacode, code128. All the symbols seen in its field of view are verified individually, and the user simply selects each barcode in turn to see the specific results.
As the distance from the axicon to the image increases, the diameter of the ring increases, while the line thickness remains constant. The link below contains all available zemax files for thorlabs optics and other products. The axicon 15500 barcode verifier is designed to read both linear and two dimensional matrix barcodes simultaneously. People used to say codev oslo zemax but im sure its. All the symbols seen in its field of view are verified individually, and the user simply. Diffractive axicon application notes holo or advanced. Resolution comparison for gonioscopy integrated with and without axicon lens unit. Osa electromagnetic diffraction theory of refractive axicon. Demo version of the filmbars graphics suite of barcode digital master generation software. Axicons are conical prisms that are defined by the alpha and apex angle. Most commonly, axicon components have a second, flat, surface and are used in combination with a focusing lens see fig. It is used for the design and analysis of both imaging and illumination systems. Given the input is a collimated beam, you can calculate the outer ring diameter and the line thickness an axicon will. The axicon 15500 barcode verification scanner is designed to read both linear and two dimensional matrix barcodes simultaneously.
Solution of exercises lecture optical design with zemax institute of. Highperformance axicon lenses based on highcontrast. Winlens3d basic also offers zoom friendly graphics, multiple copies of graphstables, audit trail facilities, and sliders for hand optimisation plus an autofocus. Opticstudio, then called zemax, was originally written by ken. I created a bessel beam using axicon thorlab, input lens data zemax file is used i am trying to find the beam profile near the focal plane.
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. The combination with other axicons or lenses allows a wide variety of beam patterns to be generated. It can be used to turn a gaussian beam into an approximation to a bessel beam, with greatly reduced diffraction. A comparison of the aberrations is also made experimentally and the results are compared with the results of. They are commonly used to create a beam with a bessel intensity profile or a conical, nondiverging beam. The results from geometrical optics, scalar wave optics, and electromagnetic diffraction theory are compared. Input a radial grating surface and set the following parameters. The three most famous sequential lens design software is codev, zemax, and oslo. Axicon equipment has been independently tested and conforms to isoiec154261. The axicon lens images a point source as a line along the optic axis. Establish an illumination system with a ring shaped profile with the help of an axicon.
Modeling an axicon zemax application note axicon defined by single parameter. The axicon 15000 series verifier uses a high resolution camera to capture an image of a barcode. All the symbols seen in its field of view are verified individually, and the user simply selects each barcode in turn to see the. In the process of designing and optimization, the angle between outgoing rays and. The axicon 6000 series barcodes verifier is aimed at verifying small size linear barcodes, max 72 mm, used in general. Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. A laser beam is transformed into a ring when it passes. Collimated light incident on the plano side will be expanded into a ring, or create a close estimation of. An axicon lens is a specialized type of lens which has a conical surface. Jul 29, 2016 resolution comparison for gonioscopy integrated with and without axicon lens unit. It is able to verify multiple barcodes in the same field of view, whether they are 2d or linear codes, and the user sees the.
Axicon 7015 2d axicon barcode verifier bar code graphics. I want with axicon and lens make a ring of light dia100um, but i dont how to control the diameter ligth what operand do i have to use. The important advantage of this software is the ability to examine the. Zemax delivers design software, training, and support services that set the highest standards for the optical and illumination industries. Axicon lens also known as conical lens or rotationally symmetric. When projected onto a flat surface, the light will be seen as a ring.
With three cuttingedge technical areas of focus and 5,200 presentations, photonics west, which took place last week, had something to offer. An axicon, also known as a rotationally symmetric prism, is a lens that features one. Axicon lenses are a unique lens design where one surface is shaped conically and the other is plano. The system uses a special array of leds and a ccdbased sensor to capture each barcode image before it is analysed. Using an axicon lens, real time imaging behind obstacles having. An axicon transforms a laser beam into a ring shaped distribution. An axicon is a specialized type of lens which has a conical surface. An axicon lens has the ability to transform a laser beam that passes through it perpendicular to and at the center of the flat side, resulting in a perfect cone of laser light, the angle of which is determined by the angle of the cone of the conic side of the lens. Comparative study of optical simulation software fred and zemax.
Znse axicon components axicon components axicon components have one conical surface, and are used to produce a ring focus. Software for design of diffractive optical elements and phase mask. It introduces the beam file viewer, which is used to inspect the phase and. Notably, even when the axicon lens is kept close to the obstacle or imaging object fig. We have also utilized zemax software to perform optical ray tracing and. Axicon can be used to convert a parallel laser beam into a ring, to create a non diffractive bessel beam or to focus a parallel beam into long focus depth. Photos of an axicon to the left and two powell lenses to the right. You are here winlens optical design software free winlens basic. Most commonly, axicon components have a second, flat, surface and. Axicon can be used to convert a parallel laser beam into a ring, to. A beam passing through axicon lens was captured by the ccd camera exi aqua bioimaging microscopy camera, qimaging, canada. This article introduces the physical optics propagation pop tool in opticstudio, which propagates electric fields in free space. Independently tested and certified to meet international standards, the axicon 7015 has been specifically designed to read all traded unit and larger bar codes with a width of up to 195 mm7.
Input the general parameters of the simulation aperture size, and wavelength 2. They can be convex or concave and be made of any optical material. The introduction states that an axicon alone can be used to convert a 0th order laguerregaussian beam what id call an ordinary gaussian beam into a 0th order besselgaussian beam, and that the addition of a simple convex lens can then turn the besselgaussian beam into a vortex beam. Can i get the correct value using the fft psf cross section. The system uses a special array of leds and a ccdbased sensor to capture each barcode image. The introduction states that an axicon alone can be used to convert a 0th order laguerregaussian beam what id call an ordinary gaussian beam into a 0th order besselgaussian beam, and that the addition. Uses negative and positive axicons to change diameter of ring for ablating. Axicon axicon lens also known as conical lens or rotationally symmetric prism is widely used in different scientific research and application.
Modeling of the propagation of bessel beams in a uniaxial crystal at. The system consists of a state of the art ccd read head and application software. Dec 01, 2016 in contrast, zemax simulation given in fig. It seems to be an error in the software, that a difference in. The objective function was firstly deduced from the energy conservation principle. High resolution iridocorneal angle imaging system by axicon. Zemax software, and the wave model in the approximation of thin optical. The bessel lens is designed by ray tracing with optical design software zemax. The axicon 15000 series verifiers have been designed to read both twodimensional and linear barcodes. The software described in this manual is furnished under a license agreement.
Zemax is a company that sells optical design software. Bessel beams, axicon, astigmatic transformations, uniaxial crystal. Axicon can be used to convert a parallel laser beam into a. A detailed description of the software used is given in the manual 27. Free version of the winlens3d optical design package, which provides serious design and analysis tools for optical engineer, student or designer.
An axicon also images a point source into a line along the optical axis and increases the depth of focus dof. Modeling of axicon lens in sequential mode by steps 1. How to integrate a diffractive axicon lens into an optical. Axicon lens axicon is always used to produce a nondiffractive ringshaped beam in the near field, whose diameter will increase over distance while maintaining a constant ring thickness. Discover a large number of userspecific elements as well as standardized aspheric optics in stock. While these devices are commercially available, they are bulky, difficult to manufacture, operate only within the. An axicon also images a point source into a line along the. Intensity distribution conversion from gaussian to tophat in a. This article demonstrates how to design a refractive beam shaper that converts a gaussian intensity profile into a top hat profile. I know some people really really like oslo but ive never used it. We study the field that is produced by a paraxial refractive axicon lens. I have a question while using zemax, so i would like to ask. Axicon 15500 barcode verification scanner bar code graphics. Thorlabs complete zemax catalog your source for fiber.