ISSN:0030-3909    

DOI:10.1080/713826398

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0030-3909    

DOI:10.1080/713826400

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Images of circular openings in opaque screens have been studied to investigate the effects of the mode of illumination. For this purpose the concept of effective source has been explicitly employed. It is shown that the image structure depends very significantly on the mode of illumination, and at least with circular openings, equality of the numerical aperture of the illuminating condenser with that of the imaging objective does not ensure a state when effectively incoherent illumination may be assumed. This affects, for example, the measurement on the sizing of particles from the distribution of intensity in the image formed with a microscope set-up. Moreover, in some cases the intensity distribution shows a marked dip at the centre, which may again lead to a confusion in the interpretation of the image.

ISSN:0030-3909    

DOI:10.1080/713826403

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

The paper defines the place assumed by the principle of reversibility within the framework of modern thin film optics. After a historical survey since the original idea of Stokes, some applications of the generalized principle in multilayer theory are presented. Attention is also paid to energetic interpretations.

ISSN:0030-3909    

DOI:10.1080/713826401

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0030-3909    

DOI:10.1080/713826404

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

It is shown that with sources available now or shortly to become available, there is correlation in the radiation emitted at distances as great as 270 m at 1 Å or 600 km at 7000 Å. Possibilities of detecting this correlation by means of a Michelson interferometer and by means of an intensity interferometer are discussed in terms of the limits set by resolution and noise.

ISSN:0030-3909    

DOI:10.1080/713826399

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0030-3909    

DOI:10.1080/713826405

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

The primary distortion of an extended monochromatic image, caused by a plane grating at minimum deviation, is derived. The aberrational displacements of all off-axis image points are parallel, and proportional to the squares of the distances of the object points off axis, independent of azimuth. Thus circles originally concentric with the axis remain circles.

ISSN:0030-3909    

DOI:10.1080/713826406

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Les auteurs exposent une méthode simple pour étudier les propriétés optiques dans l'ultraviolet lointain, de lames minces obtenues par évaporation de matériaux faiblement absorbants. Ils se proposent, en particulier, d'obtenir les constantes optiques du dépôt, son pouvoir réflecteur en surface, et celui de l'interface couche support. Des résultats relatifs au fluorure de magnésium et au fluorure de lithium sont présentés.

ISSN:0030-3909    

DOI:10.1080/713826407

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

ISSN:0030-3909    

DOI:10.1080/713826402

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor