Violation of Abbe's sine condition is well-known to cause coma in axisymmetric imaging systems, and generally any offense against the sine condition (OSC) will cause aberrations that have linear dependence on the field angle. A well-corrected imaging system must obey the Abbe sine condition. A misaligned optical system can have particular forms of the OSC which are evaluated here. The lowest order non-trivial effects of misalignment have quadratic pupil dependence which causes a combination of astigmatism and focus that have linear field dependence. Higher order terms can arise from complex systems, but the effects of misalignment are nearly always dominated by the lowest order effects which can be fully characterized by measuring images on axis and the on-axis offense against the sine condition. By understanding the form of the on-axis images and the OSC, the state of alignment can be determined.
{"title":"Use of the Abbe sine condition to quantify alignment aberrations in optical imaging systems","authors":"J. Burge, Chunyu Zhao, S. Lu","doi":"10.1117/12.871959","DOIUrl":"https://doi.org/10.1117/12.871959","url":null,"abstract":"Violation of Abbe's sine condition is well-known to cause coma in axisymmetric imaging systems, and generally any offense against the sine condition (OSC) will cause aberrations that have linear dependence on the field angle. A well-corrected imaging system must obey the Abbe sine condition. A misaligned optical system can have particular forms of the OSC which are evaluated here. The lowest order non-trivial effects of misalignment have quadratic pupil dependence which causes a combination of astigmatism and focus that have linear field dependence. Higher order terms can arise from complex systems, but the effects of misalignment are nearly always dominated by the lowest order effects which can be fully characterized by measuring images on axis and the on-axis offense against the sine condition. By understanding the form of the on-axis images and the OSC, the state of alignment can be determined.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129701725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A three-by-three polarization ray tracing matrix method for polarization ray tracing in optical systems is presented for calculating the polarization transformations associated with ray paths through optical systems. The method is a three dimensional generalization of a Jones matrix. Diattenuation of the optical system is calculated via singular value decomposition.
{"title":"Three-dimensional polarization ray tracing and diattenuation calculation","authors":"Garam Yun, K. Crabtree, R. Chipman","doi":"10.1117/12.868546","DOIUrl":"https://doi.org/10.1117/12.868546","url":null,"abstract":"A three-by-three polarization ray tracing matrix method for polarization ray tracing in optical systems is presented for calculating the polarization transformations associated with ray paths through optical systems. The method is a three dimensional generalization of a Jones matrix. Diattenuation of the optical system is calculated via singular value decomposition.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127757568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A design method of wide-angle three-mirror system with spiral optical axis is proposed. Asymmetric optical systems have more degrees of freedom than co-axial systems. The increased degrees of freedom can be applied for removal of ray obscuration by mirrors to achieve wide-angle and low F-number system design. The asymmetric system design requires three-dimensional comprehension of system structure and correction of asymmetric aberrations. In order to simplify the structure comprehension, a base sphere is introduced. The system structure can be changed into the two-dimensional structure of mirror interferences by the base sphere. The dominant asymmetric aberrations are spherical-like and astigmatism-like aberrations. The spherical-like aberration is eliminated by each mirror inidividualy and the astigmatism-like aberration is reduced by counterbalance of whole mirrors. An example of F/2 system with as wide angle as 30x24 degrees FOV is designed. The example system is fabricated by precision machining process for an infrared camera.
{"title":"Development of wide-angle three-mirror system with spiral optical axis","authors":"T. Nakano, Yoshihiro Matsumoto, Y. Tamagawa","doi":"10.1117/12.869500","DOIUrl":"https://doi.org/10.1117/12.869500","url":null,"abstract":"A design method of wide-angle three-mirror system with spiral optical axis is proposed. Asymmetric optical systems have more degrees of freedom than co-axial systems. The increased degrees of freedom can be applied for removal of ray obscuration by mirrors to achieve wide-angle and low F-number system design. The asymmetric system design requires three-dimensional comprehension of system structure and correction of asymmetric aberrations. In order to simplify the structure comprehension, a base sphere is introduced. The system structure can be changed into the two-dimensional structure of mirror interferences by the base sphere. The dominant asymmetric aberrations are spherical-like and astigmatism-like aberrations. The spherical-like aberration is eliminated by each mirror inidividualy and the astigmatism-like aberration is reduced by counterbalance of whole mirrors. An example of F/2 system with as wide angle as 30x24 degrees FOV is designed. The example system is fabricated by precision machining process for an infrared camera.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128094010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The paper details a square core fiber beam delivery design utilizing a unique micro lens array launch method. The paper includes the resulting performance of a prototype created to verify the design and its stability with an emphasis on homogenization as the fiber is articulated.
{"title":"MLA fiber injection for a square core fiber optic beam delivery system: design versus prototype results","authors":"T. Lizotte, F. Dickey","doi":"10.1117/12.868987","DOIUrl":"https://doi.org/10.1117/12.868987","url":null,"abstract":"The paper details a square core fiber beam delivery design utilizing a unique micro lens array launch method. The paper includes the resulting performance of a prototype created to verify the design and its stability with an emphasis on homogenization as the fiber is articulated.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An innovative design for an anamorphic eyepiece is described, which uses a microlens array with complicated surface features used in conjunction with a modified microdisplay to provide a high resolution image with a panoramic field of view.
{"title":"Anamorphic eyepiece for increased field of view","authors":"Sean A. Moore","doi":"10.1117/12.868953","DOIUrl":"https://doi.org/10.1117/12.868953","url":null,"abstract":"An innovative design for an anamorphic eyepiece is described, which uses a microlens array with complicated surface features used in conjunction with a modified microdisplay to provide a high resolution image with a panoramic field of view.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130282597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We propose a design method for freeform reflectors based on source-target maps. The necessity for maps to fulfill the integrability condition to obtain a continuous reflector surface is discussed and demonstrated with various reflector geometries. We also review the advantages and drawbacks of reflectors with step discontinuities that do not require the integrability condition to be satisfied.
{"title":"Freeform reflector design using integrable maps","authors":"F. Fournier, W. Cassarly, J. Rolland","doi":"10.1117/12.871014","DOIUrl":"https://doi.org/10.1117/12.871014","url":null,"abstract":"We propose a design method for freeform reflectors based on source-target maps. The necessity for maps to fulfill the integrability condition to obtain a continuous reflector surface is discussed and demonstrated with various reflector geometries. We also review the advantages and drawbacks of reflectors with step discontinuities that do not require the integrability condition to be satisfied.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"420 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132637006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A new family of 2 mirror unobscured telescopes of compact "Schiefspiegler", off axis Cassegrain geometry, incorporating aspheres, tilted and decentered secondary, and tilted focal surfaces, will serve as fast, high resolution, moderately wide field telescopes / collimators. Designs range from f/5 to f/16. The nCUB designs provide a focal surface normal to the gut ray for visual use. The tCUB designs provide collimator telescopes with focal surfaces tilted so that any light reflected from the reticle is eliminated.
{"title":"A family of 2 mirror unobscured wide field telescope and collimator designs","authors":"R. F. Horton","doi":"10.1117/12.871072","DOIUrl":"https://doi.org/10.1117/12.871072","url":null,"abstract":"A new family of 2 mirror unobscured telescopes of compact \"Schiefspiegler\", off axis Cassegrain geometry, incorporating aspheres, tilted and decentered secondary, and tilted focal surfaces, will serve as fast, high resolution, moderately wide field telescopes / collimators. Designs range from f/5 to f/16. The nCUB designs provide a focal surface normal to the gut ray for visual use. The tCUB designs provide collimator telescopes with focal surfaces tilted so that any light reflected from the reticle is eliminated.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131155298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W. Sweatt, B. Jared, G. Nielson, M. Okandan, A. Filatov, M. Sinclair, J. Cruz-Campa, A. Lentine
Micro-optical 5mm lenses in 50mm sub-arrays illuminate arrays of photovoltaic cells with 49X concentration. Fine tracking over ±10° FOV in sub-array allows coarse tracking by meter-sized solar panels. Plastic prototype demonstrated for 400nm
{"title":"Micro-optics for high-efficiency optical performance and simplified tracking for concentrated photovoltaics (CPV)","authors":"W. Sweatt, B. Jared, G. Nielson, M. Okandan, A. Filatov, M. Sinclair, J. Cruz-Campa, A. Lentine","doi":"10.1117/12.870964","DOIUrl":"https://doi.org/10.1117/12.870964","url":null,"abstract":"Micro-optical 5mm lenses in 50mm sub-arrays illuminate arrays of photovoltaic cells with 49X concentration. Fine tracking over ±10° FOV in sub-array allows coarse tracking by meter-sized solar panels. Plastic prototype demonstrated for 400nm","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132822064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The development of a flexible tolerancing tool for illumination systems based on Matlab® and Zemax® is described in this paper. Two computationally intensive techniques are combined, Monte Carlo tolerancing and non-sequential ray tracing. Implementation of the tool on a computer cluster allows for relatively rapid tolerancing. This paper explores the tool structure, describing the splitting the task of tolerancing between Zemax and Matlab. An equation is derived that determines the number of simulated ray traces needed to accurately resolve illumination uniformity. Two examples of tolerancing illuminators are given. The first one is a projection system consisting of a pico-DLP, a light pipe, a TIR prism and the critical illumination relay optics. The second is a wide band, high performance Köhler illuminator, which includes a modified molded LED as the light source. As high performance illumination systems evolve, the practice of applying standard workshop tolerances to these systems may need to be re-examined.
{"title":"Monte Carlo tolerancing tool using nonsequential ray tracing on a computer cluster","authors":"C. Reimer","doi":"10.1117/12.871008","DOIUrl":"https://doi.org/10.1117/12.871008","url":null,"abstract":"The development of a flexible tolerancing tool for illumination systems based on Matlab® and Zemax® is described in this paper. Two computationally intensive techniques are combined, Monte Carlo tolerancing and non-sequential ray tracing. Implementation of the tool on a computer cluster allows for relatively rapid tolerancing. This paper explores the tool structure, describing the splitting the task of tolerancing between Zemax and Matlab. An equation is derived that determines the number of simulated ray traces needed to accurately resolve illumination uniformity. Two examples of tolerancing illuminators are given. The first one is a projection system consisting of a pico-DLP, a light pipe, a TIR prism and the critical illumination relay optics. The second is a wide band, high performance Köhler illuminator, which includes a modified molded LED as the light source. As high performance illumination systems evolve, the practice of applying standard workshop tolerances to these systems may need to be re-examined.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132152448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tailoring of secondary optics, especially in short distances to the light source, requires appropriate, point source based, primary optic models which provide adequate accuracy. We propose a method to generate such models for complex, even non-smooth, primary optics by using spatial radiation patterns and applying backward tailoring. Furthermore, we demonstrate the scope of this method and the improvements on the secondary optic design process.
{"title":"Backward modelling of LED primary optics","authors":"S. Wendel, André Domhardt, C. Neumann","doi":"10.1117/12.868379","DOIUrl":"https://doi.org/10.1117/12.868379","url":null,"abstract":"Tailoring of secondary optics, especially in short distances to the light source, requires appropriate, point source based, primary optic models which provide adequate accuracy. We propose a method to generate such models for complex, even non-smooth, primary optics by using spatial radiation patterns and applying backward tailoring. Furthermore, we demonstrate the scope of this method and the improvements on the secondary optic design process.","PeriodicalId":386109,"journal":{"name":"International Optical Design Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115758674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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