{"title":"The Role of Aspherics in Zoom Lens Design","authors":"Ellis I. Betensky","doi":"10.1364/ild.1990.lthc1","DOIUrl":"https://doi.org/10.1364/ild.1990.lthc1","url":null,"abstract":"Zoom lenses are slowly dominating the field of general purpose imaging, and for such diverse applications as office copiers and 35 mm cinematography they are now considered of equal quality to fixed focal length lenses. For some applications, such as consumer video, fixed focal length lenses now are either rare or non-existent. Until only a few years ago aspherical surfaces could be found in only a few isolated zoom lens designs, but now a large percentage of the lenses being designed for consumer video and compact 35 millimeter, use aspherical surfaces. We undertake here to describe the function these surfaces serve.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130024339","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}
{"title":"A Simple Quadratic Extrapolation Method for the Correction of Specific Aberrations in Lens Systems","authors":"J. Maxwell, C. C. Hull","doi":"10.1364/ild.1990.pdp2","DOIUrl":"https://doi.org/10.1364/ild.1990.pdp2","url":null,"abstract":"A change in the vector of aberration coefficients, Δa, is given, to a first-order approximation, by equation (1). A is a square matrix of first-order partial differential coefficients with respect to the variable parameters for the current design and Δx is the vector of applied parameter changes.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130530447","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}
{"title":"Design of Focusing Grating Coupler Construction Optics","authors":"K. Moore, G. Lawrence","doi":"10.1364/ild.1990.ltha3","DOIUrl":"https://doi.org/10.1364/ild.1990.ltha3","url":null,"abstract":"Techniques for introducing compensating aberrations in the construction optics for waveguide grating couplers which are fabricated at visible and used at infrared wavelengths are discussed.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129024808","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}
N. Thomas, R. Bionta, K. Skulina, D. M. Makowiecki
{"title":"X-Ray Lens Design","authors":"N. Thomas, R. Bionta, K. Skulina, D. M. Makowiecki","doi":"10.1364/ild.1990.ltue1","DOIUrl":"https://doi.org/10.1364/ild.1990.ltue1","url":null,"abstract":"Fresnel zone plates and phase plates were developed for use with copper K-alpha X-rays (8 Kev λ = 1.54 Å). Alternating layers of transparent and opaque materials are sputtered onto a substrate, sliced perpendicular to the coating, thinned to a desired thickness and polished. Phase plates are made with a phase shifting layer in place of the opaque layers. Each material combination has a characteristic phase length, or thickness necessary to cause a relative phase shift of π between X-rays passing through the two materials. When phase plates are sliced to a thickness of integral multiple phase lengths, constructive interference occurs in the focal plane, with up to a four-fold increase in intensity compared to a zone plate. The design considerations and comparisons with experiment will be presented.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115924813","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}
{"title":"Achromatized hybrid diffractive lens systems","authors":"C. Londoño, P. Clark","doi":"10.1364/ild.1990.lmb3","DOIUrl":"https://doi.org/10.1364/ild.1990.lmb3","url":null,"abstract":"We have investigated the design of broadband hybrid diffractive-refractive lens systems for simple camera systems. When achromatizing one of these systems one typically considers only one diffracted order, assuming 100% efficiency. Kinoform structures can approach 100% efficiency at one wavelength, but it inevitably decreases for other wavelengths. Therefore one must take into account this effect when evaluating image quality.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122808985","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}
{"title":"Optical Design and Fabrication of an Infrared Conformal Window","authors":"H. Spencer","doi":"10.1364/ild.1990.ltue3","DOIUrl":"https://doi.org/10.1364/ild.1990.ltue3","url":null,"abstract":"The growing need to incorporate Forward Looking Infrared (FLIR) optical systems in high speed aircraft has brought with it the aerodynamic requirement for zero power windows which are conformal with the sensor mounting pod. Such asymmetric, dome-like optical elements must have the same diffraction limited performance capabilities as their predecessor symmetric dome counterparts if the performance of the FLIR used with them is not to be compromised. When of large diameter and used considerably off-axis, the optical design and opto-mechanical considerations become significant and challenging for both the optical designer and the component fabricator.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128591714","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}
{"title":"Optimization of the Seidel image errors by lens bending using a 4th degree merit function","authors":"F. Aurin, C. Zeiss","doi":"10.1364/ild.1990.ltua6","DOIUrl":"https://doi.org/10.1364/ild.1990.ltua6","url":null,"abstract":"The procedure proposed works on the basis of a merit function of 4th degree and is used for the optimization of the Seidel image errors of a system composed of thin lenses by means of lens bendings. Between the thin lenses air spaces may exist. All solutions which lie within the permissible intervals of bending are taken into consideration when the sums and the corresponding surface contributions of the Seidel image errors are situated below a limit that may be selected at will.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114889319","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}
{"title":"A Refractive-Index Interpolation Fit Criterion for Materials Used in Optical Design","authors":"Ronald J. Komiski","doi":"10.1364/ild.1990.lwa3","DOIUrl":"https://doi.org/10.1364/ild.1990.lwa3","url":null,"abstract":"Optical designers need to know the index of refraction of optical materials in order to design and accurately predict the performance of an optical system. The indices must' be known at wavelengths that are pertinent to the system being designed not the ones in the vendor's brochure or the technical publication where the data was found. For optical glasses, the vendors have been aiding the designer since the late 1960s by providing an interpolation formula and coefficients. This allows the designer to accurately determine the index of the glass at any wavelength in the visible and very near infrared. Infrared or ultraviolet transmitting materials usually do not have vendor supplied coefficients, and the raw index data available is often of uncertain accuracy. What does a designer do when he needs the information after the glass has passed the inflection point in its dispersion curve or needs to use an optical material other than glass?","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124050847","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}
{"title":"Design Challenges for the 1990's","authors":"D. Shafer","doi":"10.1364/ild.1990.lthb1","DOIUrl":"https://doi.org/10.1364/ild.1990.lthb1","url":null,"abstract":"The past decade has featured some dramatic advances in areas touching on lens design. These include new levels of ease and accuracy in aspheric fabrication, a better appreciation of cost/weight/package size/performance tradeoff issues, an amazing increase in computing speed, better cost, accesibility. user-friendliness, and nascient signs of computer intelligence. Impressive as these advances are. we are ultimately forced to realize that there is no replacement in the near term for good old human thinking.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131322372","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}
{"title":"Diffraction Performance Calculations in Lens Design","authors":"D. Malacara","doi":"10.1364/ild.1990.lma1","DOIUrl":"https://doi.org/10.1364/ild.1990.lma1","url":null,"abstract":"The wavefront deformation may be calculated in two different manners, one is by computing the optical path difference for the rays while computing the spot diagram. The other is by obtaining the wavefront from integration of the transverse aberrations. Both of these methods have their own limitations and advantages.","PeriodicalId":215557,"journal":{"name":"International Lens Design","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129801269","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}