Pub Date : 1975-03-01DOI: 10.1088/0335-7368/6/2/301
P. Benoit, E. Mathieu, J. Hormière, A. Thomas
Several methods for optical comparison or characterization of threedimensional object forms are presented. By generalizing the classical techniques of production of image differences it is possible to obtain informations of differences in a threedimensional manner. The classical techniques only contain two dimensional information. The methods are based on appropriate fringe projection systems on the object. A simple characterization of an object is the use of contour lines. Different methods of contour lining are shown, especially in real time. In all these methods the production of Moire fringes play an important role. These fringes permit the determination of differences between two objects and the plotting of contour lines, too.
{"title":"Characterization and control of threedimensional objects using fringe projection techniques","authors":"P. Benoit, E. Mathieu, J. Hormière, A. Thomas","doi":"10.1088/0335-7368/6/2/301","DOIUrl":"https://doi.org/10.1088/0335-7368/6/2/301","url":null,"abstract":"Several methods for optical comparison or characterization of threedimensional object forms are presented. By generalizing the classical techniques of production of image differences it is possible to obtain informations of differences in a threedimensional manner. The classical techniques only contain two dimensional information. The methods are based on appropriate fringe projection systems on the object. A simple characterization of an object is the use of contour lines. Different methods of contour lining are shown, especially in real time. In all these methods the production of Moire fringes play an important role. These fringes permit the determination of differences between two objects and the plotting of contour lines, too.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126665368","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}
Pub Date : 1975-03-01DOI: 10.1088/0335-7368/6/2/304
J. Deuze, C. Devaux, M. Herman
The polarized light scattered from a plane parallel atmosphere is considered. Computations are made, for a normal incident beam, using the Kuscer's generalised « Spherical Harmonics » method, in its exact form, and also using a successive approximations scheme. This last technique gives some insight about the formation of the scattered light. It is confirmed that the polarized part of the emergent radiation comes from a thin upper atmospheric layer, but this polarized light seems generated quite independently of the global radiation field.
{"title":"The spherical harmonics methods for polarized light computations. A note about the formation of the light scattered by optically thick planetary atmospheres","authors":"J. Deuze, C. Devaux, M. Herman","doi":"10.1088/0335-7368/6/2/304","DOIUrl":"https://doi.org/10.1088/0335-7368/6/2/304","url":null,"abstract":"The polarized light scattered from a plane parallel atmosphere is considered. Computations are made, for a normal incident beam, using the Kuscer's generalised « Spherical Harmonics » method, in its exact form, and also using a successive approximations scheme. This last technique gives some insight about the formation of the scattered light. It is confirmed that the polarized part of the emergent radiation comes from a thin upper atmospheric layer, but this polarized light seems generated quite independently of the global radiation field.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128289917","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}
Pub Date : 1975-03-01DOI: 10.1088/0335-7368/6/2/303
A. Charlot, J. Corno, J. Simon
A new interferometer has been developed which can be used both for analysing the homogeneity of I. R. materials and for inspecting the wave-form emerging out from an optical system. This new type of interferometer utilises a diffraction grating as a beam divider and further permits an important variation in the fringe contrast to be obtained for a given blaze angle by the variation of the efficacity of the grating with the orientation of the plane of polarisation. This improvement permits the compensation of photometric losses due either to an absorbing material or due to a highly reflecting material, that may be under test. By this way it is possible to evaluate all materials within a transmission range from 10% to 100%. This interferometer functions at 10.6?m. Results obtained are detailed here in.
{"title":"An application of the polarizing property of gratings in the 10 microns interferometry","authors":"A. Charlot, J. Corno, J. Simon","doi":"10.1088/0335-7368/6/2/303","DOIUrl":"https://doi.org/10.1088/0335-7368/6/2/303","url":null,"abstract":"A new interferometer has been developed which can be used both for analysing the homogeneity of I. R. materials and for inspecting the wave-form emerging out from an optical system. This new type of interferometer utilises a diffraction grating as a beam divider and further permits an important variation in the fringe contrast to be obtained for a given blaze angle by the variation of the efficacity of the grating with the orientation of the plane of polarisation. This improvement permits the compensation of photometric losses due either to an absorbing material or due to a highly reflecting material, that may be under test. By this way it is possible to evaluate all materials within a transmission range from 10% to 100%. This interferometer functions at 10.6?m. Results obtained are detailed here in.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1975-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129471167","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}
Pub Date : 1974-11-01DOI: 10.1088/0335-7368/5/6/301
Christian Bolusset, M. Treheux
Short access time and compact realisation of data storage and display devices no longer belong tobl a. oddities and will soon have many applications. This paper deals with PHEDRE and SEMIRAMIS, two solutions given to the problems of information storage. We first describe the data storage mean: Data (typically prints or pictures) is modulated by a reference beam and recorded by superimposition on small areas of photographic films or plates; Secondly, recording and retrieval procedures will be detailed.
{"title":"Analog data storage systems using surimposition of modulated optical grating","authors":"Christian Bolusset, M. Treheux","doi":"10.1088/0335-7368/5/6/301","DOIUrl":"https://doi.org/10.1088/0335-7368/5/6/301","url":null,"abstract":"Short access time and compact realisation of data storage and display devices no longer belong tobl a. oddities and will soon have many applications. This paper deals with PHEDRE and SEMIRAMIS, two solutions given to the problems of information storage. We first describe the data storage mean: Data (typically prints or pictures) is modulated by a reference beam and recorded by superimposition on small areas of photographic films or plates; Secondly, recording and retrieval procedures will be detailed.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121656007","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}
Pub Date : 1974-11-01DOI: 10.1088/0335-7368/5/6/303
T. Asakura, T. Ueno
An apodization scheme for increasing the Sparrow resolution limit under the partially coherent illumination is formulated via the calculus of variations. The required pupil functionsa re obtained by solving an homogeneous Fredholm integral equation and evaluated as functions of the coherence condition of illumination and the total light flux passing through the aperture.
{"title":"Apodization for increasing two-point resolution by the sparrow criterion under the partially coherent illumination","authors":"T. Asakura, T. Ueno","doi":"10.1088/0335-7368/5/6/303","DOIUrl":"https://doi.org/10.1088/0335-7368/5/6/303","url":null,"abstract":"An apodization scheme for increasing the Sparrow resolution limit under the partially coherent illumination is formulated via the calculus of variations. The required pupil functionsa re obtained by solving an homogeneous Fredholm integral equation and evaluated as functions of the coherence condition of illumination and the total light flux passing through the aperture.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131139906","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}
Pub Date : 1974-11-01DOI: 10.1088/0335-7368/5/6/305
J. Girardeau-Montaut
In this paper, we present a review of the ultraviolet molecular Nitrogen lasers from their origin until 1974, these lasers being considered as the representative of UV lasers with pulsed electronic pumping and low pressure molecular gases. Principaly, are developped: the laser spectroscopy, the inversion conditions, a valuation of the power density and maximum efficiency, the amplification and oscillation conditions. So, the performances of different technologies are compared and analyzed.
{"title":"Review on ultra-violet nitrogen lasers","authors":"J. Girardeau-Montaut","doi":"10.1088/0335-7368/5/6/305","DOIUrl":"https://doi.org/10.1088/0335-7368/5/6/305","url":null,"abstract":"In this paper, we present a review of the ultraviolet molecular Nitrogen lasers from their origin until 1974, these lasers being considered as the representative of UV lasers with pulsed electronic pumping and low pressure molecular gases. Principaly, are developped: the laser spectroscopy, the inversion conditions, a valuation of the power density and maximum efficiency, the amplification and oscillation conditions. So, the performances of different technologies are compared and analyzed.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122566975","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}
Pub Date : 1974-11-01DOI: 10.1088/0335-7368/5/6/302
F. Decossas, J. Gerbier
The design, construction, and performance of a high resolution monochromator are described: optical path, choice of each component, mechanical construction specially the system which rotates the grating in linear cm-1. A resolution of. 5 cm-1 is obtained. We indicate the variation of the resolution R of the instrument in fonction of the slitwidths and also some examples of high resolution in Raman's diffusion with the spectrometer which is built with this monochromator.
{"title":"A high resolution monochromator used in a spectometer for Raman's diffusion","authors":"F. Decossas, J. Gerbier","doi":"10.1088/0335-7368/5/6/302","DOIUrl":"https://doi.org/10.1088/0335-7368/5/6/302","url":null,"abstract":"The design, construction, and performance of a high resolution monochromator are described: optical path, choice of each component, mechanical construction specially the system which rotates the grating in linear cm-1. A resolution of. 5 cm-1 is obtained. We indicate the variation of the resolution R of the instrument in fonction of the slitwidths and also some examples of high resolution in Raman's diffusion with the spectrometer which is built with this monochromator.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126585261","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}
Pub Date : 1974-11-01DOI: 10.1088/0335-7368/5/6/304
G. Lemaitre
A new method of obtaining aspherical surfaces from elasticity is applied to the wave-front function. The primary aberrations with arbitrary amplitude are considered in detail. It is shown with respect to conventional criteria concerning a given value of the normalized intensity at the diffraction focus, that three simple loads and associate thickness configurations of the plates can be found in the case of primary spherical aberration. One configuration for simple loads and thickness is found in each case for primary coma and primary astigmatism.
{"title":"Compensation of aberrations by elasticity","authors":"G. Lemaitre","doi":"10.1088/0335-7368/5/6/304","DOIUrl":"https://doi.org/10.1088/0335-7368/5/6/304","url":null,"abstract":"A new method of obtaining aspherical surfaces from elasticity is applied to the wave-front function. The primary aberrations with arbitrary amplitude are considered in detail. It is shown with respect to conventional criteria concerning a given value of the normalized intensity at the diffraction focus, that three simple loads and associate thickness configurations of the plates can be found in the case of primary spherical aberration. One configuration for simple loads and thickness is found in each case for primary coma and primary astigmatism.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127748907","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}
Pub Date : 1974-09-01DOI: 10.1088/0335-7368/5/5/303
G. Roblin, Y. Souche
In this paper, we recall the principle of interference comparator for comparing end standards and using an additive polarization interferometer. Then, the length difference between two samples can be interpreted by the phase difference between two rectilinear vibrations which are polarized on two perpendicular directions. This phase difference is measured by the means of phase modulation. Owing to these concepts a display was imagined to assure the differential measure of thermal expansion. It is allowing to compare elongations of one sample and one standard. As the samples are magnetic materials measured under variable directions and force magnetic fields, it results a conception of interferometer taking account of sizes and characteristics of thermal expansion chamber. The assembled described display is allowing to show variations of optical phase with 10-8 relative uncertainly in terms of length differential variation.
{"title":"Polarization interferometer applied to measure of thermal expansion","authors":"G. Roblin, Y. Souche","doi":"10.1088/0335-7368/5/5/303","DOIUrl":"https://doi.org/10.1088/0335-7368/5/5/303","url":null,"abstract":"In this paper, we recall the principle of interference comparator for comparing end standards and using an additive polarization interferometer. Then, the length difference between two samples can be interpreted by the phase difference between two rectilinear vibrations which are polarized on two perpendicular directions. This phase difference is measured by the means of phase modulation. Owing to these concepts a display was imagined to assure the differential measure of thermal expansion. It is allowing to compare elongations of one sample and one standard. As the samples are magnetic materials measured under variable directions and force magnetic fields, it results a conception of interferometer taking account of sizes and characteristics of thermal expansion chamber. The assembled described display is allowing to show variations of optical phase with 10-8 relative uncertainly in terms of length differential variation.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129945117","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}
Pub Date : 1974-09-01DOI: 10.1088/0335-7368/5/5/306
J. Mangin, G. Morlot, P. Strimer, R. Thomas, J. Weber, A. Hadni, P. Felix, S. Veron, G. Moirou
Using a pyroelectric target Pyricon video tube, classical optics experiments are easily performed in the far infrared (at 10 and 337 µm in this work). Applications of the tube are numerous and one may visualize infrared laser modes and control plates that are opaque in the visible spectrum and transparent in some fields of the infrared spectrum.
{"title":"Visualization of thermal radiations and stimulated emission of 10 µm and 337 µm infrared lasers with a pyricon pick-up tube","authors":"J. Mangin, G. Morlot, P. Strimer, R. Thomas, J. Weber, A. Hadni, P. Felix, S. Veron, G. Moirou","doi":"10.1088/0335-7368/5/5/306","DOIUrl":"https://doi.org/10.1088/0335-7368/5/5/306","url":null,"abstract":"Using a pyroelectric target Pyricon video tube, classical optics experiments are easily performed in the far infrared (at 10 and 337 µm in this work). Applications of the tube are numerous and one may visualize infrared laser modes and control plates that are opaque in the visible spectrum and transparent in some fields of the infrared spectrum.","PeriodicalId":286899,"journal":{"name":"Nouvelle Revue D'optique","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1974-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116272279","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：