Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Voldemar Petrovich Koronkevich"'
Autor:
Voldemar Petrovich Koronkevich, G. A. Lenkova, Victor P. Korolkov, A. S. Gutman, I. A. Iskakov, V. M. Treushnikov, R. K. Nasyrov
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 44:342-352
Optical characteristics and properties of AcrySof ReSTOR® bifocal intraocular lenses (Alcon, USA) and elastic polymer MIOL-Akkord lenses (Russia) are compared. The lenses differ by the form of refractive component, the type of diffractive microstruc
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 43:252-255
The possibility of decreasing the depth of interference region in the Fizeau interferometer configuration with a semiconductor laser is considered for problems concerned with inspection of plane-parallel plates.
Autor:
Sergei A. Kokarev, Andrei A. Kharissov, Vadim V. Cherkashin, Valerii P. Kiryanov, Alexander G. Verhoglyad, Aleksei V. Kiryanov, Evgeny G. Churin, Alexander G. Poleshchuk, Voldemar Petrovich Koronkevich, Victor P. Korolkov
Publikováno v:
Applied optics. 38(8)
A precision laser pattern generator for writing arbitrary diffractive elements was developed as an alternative to Cartesian coordinate laser/electron-beam writers. This system allows for the fabrication of concentric continuous-relief and arbitrary b
Autor:
Arthur S. Gutman, E. A. Viktorova, Galina A. Lenkova, Valerii M. Treushnikov, Voldemar Petrovich Koronkevich, Victor P. Korolkov, Igor A. Iskakov
Publikováno v:
International Conference on Lasers, Applications, and Technologies 2007: Laser Technologies for Medicine.
Application of different phototechnologies (direct laser writing and frontal photopolymerization) for manufacturing of diffractive-refractive bifocal intraocular lenses has been described. Optically transparent photopolymer suitable for manufacturing
Publikováno v:
SPIE Proceedings.
A diffraction interferometer with a Fresnel zone plate (hologram) situated in the center of curvature of a concave mirrorwas created to test the shape of surface of spherical and parabolic mirrors. Conditions of minimizing the instrumental errorof th
Autor:
Victor P. Korolkov, Andrey G. Sedukhin, Voldemar Petrovich Koronkevich, Alexander G. Poleshchuk
Publikováno v:
SPIE Proceedings.
Laser metrology often requires the precision forming of a probe laser beam with necessary wavefront shape or given intensity distribution. This problem is solved optimally by application of diffractive optical elements (DOE). In the IA&E SB RAS a cir
Publikováno v:
Diffractive Optics and Micro-Optics.
A bifocal hybrid (diffractive-refractive) intraocular lens with an increased near vision acuity has been developed. The latter is attained by spherical cornea aberration correction with the help of a diffractive component. The lens image quality was
Autor:
Vadim V. Cherkashin, Alexander G. Poleshchuk, Victor P. Korolkov, Voldemar Petrovich Koronkevich, Chuck Wu
Publikováno v:
Diffractive Optics and Micro-Optics.
Technologies of fabrication of gray-scale and binary masks for diffractive optics have been developed. Their peculiarity consists in application of materials changing chemical or optical properties under thermal action of laser beam without photoresi
Publikováno v:
Scopus-Elsevier
Computer-generated holograms are limited by conventional lithographic fabrication capabilities, which rely on accurate deposition, exposure, and developing of photosensitive chemicals. We present alternate fabrication technologies, which use a focuse
Autor:
Voldemar Petrovich Koronkevich, Vadim V. Cherkashin, Alexander G. Poleshchuk, Andrey A. Kharissov, Victor P. Korolkov
Publikováno v:
SPIE Proceedings.
The circular laser writing system for writing of arbitrary patterns of diffractive elements in chromium films and photoresists has been developed as an alternative method for laser or e-beam writing in x-y system of coordinates. This system is able t