Aiming at the problem of low control accuracy of aero-engine kinematics, the multidisciplinary coupled dynamics simulation method and reliability modelling method are studied. In this paper, based on the ADAMS softwar...
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We present a model for the opticaldesign of gradient-index (GRIN) media of general rotationally symmetric form, based on any number of constituent materials. This is achieved by modelling the relative composition of ...
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ISBN:
(纸本)9781510626621
We present a model for the opticaldesign of gradient-index (GRIN) media of general rotationally symmetric form, based on any number of constituent materials. This is achieved by modelling the relative composition of the medium as a function of space in a form that may be readily converted to refractive index and its derivatives, and is also suitable for optimisation in lens design software. This model is used in the opticaldesign of a singlet GRIN eyepiece where we demonstrate equivalent performance to a multi-element homogeneous design. We show the potential of such media for correction of both chromatic and monochromatic aberrations. Whilst conventional optical systems depend on a set of homogeneous media bounded by discontinuous surfaces, such arbitrary GRIN media introduce the scope for a class of continuous optical systems where the majority of optical work is performed by GRIN media. We explore concepts for the opticaldesign of such systems.
In this paper, an optical finite impulse response (FIR) filter is proposed. An optical FIR filter can produce arbitrary spectrum output based on transfer function. The corresponding relationship between an optical fil...
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ISBN:
(纸本)9781510601345
In this paper, an optical finite impulse response (FIR) filter is proposed. An optical FIR filter can produce arbitrary spectrum output based on transfer function. The corresponding relationship between an optical filter and FIR filter is analyzed and analysis is presented in detail.
The modeling of a polychromatic optical radiation source for the air tract monitoring system is provided. The implementation is based on an idea of a photometric sphere.
ISBN:
(纸本)9781510601345
The modeling of a polychromatic optical radiation source for the air tract monitoring system is provided. The implementation is based on an idea of a photometric sphere.
The opticaldesign of a High-Power LED based Solar Simulator was made in order to reach the AM1.5G spectrum standards. An optical model of the light emitted by the LEDs was made and used for spectral intensities calcu...
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ISBN:
(纸本)9781510601345
The opticaldesign of a High-Power LED based Solar Simulator was made in order to reach the AM1.5G spectrum standards. An optical model of the light emitted by the LEDs was made and used for spectral intensities calculations and the light intensity uniformity was optimized. A class AAA solar simulator was designed using a hexagonal LED distribution.
The article presents the research result and the opticaldesign of long-focus telephoto lens for photo shooting by the academician Maksutov's scheme. It shows a review of lenses for photo shooting on the market to...
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ISBN:
(纸本)9781510601345
The article presents the research result and the opticaldesign of long-focus telephoto lens for photo shooting by the academician Maksutov's scheme. It shows a review of lenses for photo shooting on the market today, and also an analysis of the correctional possibilities which is based on the scheme is presented;studied long-focus telephoto lens is compared with its closest analog, the calculation of a new telephoto lens with higher image quality is made on the basis of that comparison.
In this paper, we consider ways to facilitate such as (radial-circular, triangular, hexagonal);holes;contour cross section of various shapes (single arch and double arch);sandwich, honeycomb structures. we examine the...
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ISBN:
(纸本)9781510601345
In this paper, we consider ways to facilitate such as (radial-circular, triangular, hexagonal);holes;contour cross section of various shapes (single arch and double arch);sandwich, honeycomb structures. we examine the comparison of traditional and not traditional materials for large optics.
This work devoted to a comparative study of different designs of optical equipment models to creating it in a best way, as well as a comparison of conditions and materials, of which these moutains are made of. For fas...
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ISBN:
(纸本)9781510601345
This work devoted to a comparative study of different designs of optical equipment models to creating it in a best way, as well as a comparison of conditions and materials, of which these moutains are made of. For fasteners for optical elements required considerable precision. Speaking of affordable 3D printers, precision fasteners depends on many parameters. The relevance of the work is to study the characteristics of three-dimensional printing accuracy and limits of its application.
In this paper the basic principles of the optical system construction for forming a cylindrical light tube of assigned diameter are formulated. It is based on the principle of agreement aperture and field angle of the...
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ISBN:
(纸本)9781510601345
In this paper the basic principles of the optical system construction for forming a cylindrical light tube of assigned diameter are formulated. It is based on the principle of agreement aperture and field angle of the optical system and the possibility of converting the transverse dimensions of the cylindrical light tubes by using the afocal optical system. In general, the task of converting a formed cylindrical light tube with the desired dimensions in the reverse path of the rays can be solved with a help of the single afocal system consisting of two positive components. In paper some variants of the optical system scheme for preliminary ( initial) conversion of light tubes with an indication of their main advantages and disadvantages are presented. Aberration analysis of optical systems was carried out.
The research of the influence of the LED radiation brightness distribution on the energy sensitivity of optical electronic systems with optical equal zone is provided. Mathematical modeling of the radiation field on a...
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ISBN:
(纸本)9781510601345
The research of the influence of the LED radiation brightness distribution on the energy sensitivity of optical electronic systems with optical equal zone is provided. Mathematical modeling of the radiation field on a matrix receiver, considering lens spherical aberration, is provided. The possibility of forming a uniform illumination on the photodetector matrix, changing the shape of the distribution of the brightness of the LED at a predetermined invariable spherical aberration of the lens is provided.
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