The conjugate null test is commonly used to test surface errors of conic mirrors. Unfortunately, its accuracy is limited by rigid body misalignment errors. This paper derives the misalignment aberrations for these err...
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ISBN:
(纸本)0819415871
The conjugate null test is commonly used to test surface errors of conic mirrors. Unfortunately, its accuracy is limited by rigid body misalignment errors. This paper derives the misalignment aberrations for these errors.
It is well known and described in any geometrical optics textbook that the axial as well as the magnification chromatic aberration may be corrected in a system formed by a pair of thin lenses separated by a certain di...
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ISBN:
(纸本)0819415871
It is well known and described in any geometrical optics textbook that the axial as well as the magnification chromatic aberration may be corrected in a system formed by a pair of thin lenses separated by a certain distance, using only one type of glass. However, it is not so well known that these aberrations may be also corrected in a single thick lens.
The CVROS scanner, a new approach to high speed serial optical scanning employing a scan disc, has been successfully developed for thermal imaging. Its high speed, high scan efficiency, wide field, and mirror optics s...
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ISBN:
(纸本)0819415871
The CVROS scanner, a new approach to high speed serial optical scanning employing a scan disc, has been successfully developed for thermal imaging. Its high speed, high scan efficiency, wide field, and mirror optics suggest applicability to broad band visible scanners and projectors as well as laser and UV printers. This paper reviews the CVROS concept and presents the configuration adaptations required for finite conjugate applications. design and performance characteristics are given for several configurations as well as key alignment and manufacturing requirements.
Using the caustic merit function for plane waves incident upon a singlet lens, a comparison between the optical performance of the lens using an axial gradient index with spherical surfaces or aspheric surfaces with c...
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ISBN:
(纸本)0819415871
Using the caustic merit function for plane waves incident upon a singlet lens, a comparison between the optical performance of the lens using an axial gradient index with spherical surfaces or aspheric surfaces with constant index material has been investigated. Results indicate that the use of an inhomogeneous medium for the lens material is more effective in the controlling aberrations than the use of aspheric surfaces for a similar lens.
This paper evaluates the experimental performance of satellite profile measurements using digital correlation techniques in optical spread spectrum systems. The digital correlation achieved a 3 cm spatial resolution. ...
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The characteristics of a new twin-track absolute position optical encoder are presented. One track containing a pseudorandom code and the second a periodic pattern are synchronously engraved on a glass slab. The optic...
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An automated Ronchigram analysis system capable of analyzing cross grating ronchigrams, produced by a single channel Ronchi system, is being developed. Because of the complexity of the Ronchigrams it is necessary to s...
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We proposed an all-optical bistable unit made of a Faraday medium and investigated theoretically its unique characteristics. optical bistability in our proposed unit was experimantally confirmed. In this paper, using ...
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Due to increasing environmental limitations on the use of certain raw materials used to make optical glasses, there is now an economic desire to minimize the number of glasses used in lens design. This paper presents ...
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ISBN:
(纸本)0819415871
Due to increasing environmental limitations on the use of certain raw materials used to make optical glasses, there is now an economic desire to minimize the number of glasses used in lens design. This paper presents the results of a study to create a suggested universal catalogue that contains the minimum number of glasses needed to satisfy most possible lens designs. A nearly symmetric double Gauss lens is used in the glass selection process. As part of this study, the relationship between the error function and the number of glasses chosen is studied, and in addition, a glass range study is also carried out. Three different lens libraries were studied using the global optimization method and the most frequently chosen glasses were then compiled into the suggested universal glass catalogue. A suggested universal glass catalogue constructed from this study is presented.
optical elements which are made out of macro gradient refractive material are represented by lines, as opposed to points, on the glass map (nd Vs. vd diagram). Thus, opticaldesigners need account for gradient dispers...
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ISBN:
(纸本)0819415871
optical elements which are made out of macro gradient refractive material are represented by lines, as opposed to points, on the glass map (nd Vs. vd diagram). Thus, opticaldesigners need account for gradient dispersion as well as gradient index. A dispersion model for the material must be readily available and opticaldesign programs must be capable of defining and maintaining this relationship before and during optimization, simplifying user input and confining the material to walk a well defined path on the glass map. Thinking in terms of lines on the glass map for arbitrary glass families yields a simple dispersion model based on least squares fitting of Buchdahl coefficients. This paper introduces the concept of glass lines and outlines a technique to construct a dispersion model for any contiguous family of gradient refractive material.
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