Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Eiji Okuda"'
Publikováno v:
Journal of the Japan Veterinary Medical Association. 62:789-795
Publikováno v:
Journal of the Japan Society of Engineering Geology. 40:124-136
同一露頭で複数の節理が存在する場合, それらの節理に沿う岩盤の劣化状況が一様でないことがしばしば観察される. このことは, 節理ごとに劣化の進行度が異なることを示している. ま
Publikováno v:
Journal of the Japan Society of Engineering Geology. 39:414-422
同一露頭で複数の節理が存在する場合, それらの節理に沿う岩盤の劣化状況が一様でないことがしばしば観察される. このことは, 節理ごとに劣化の進行度が異なることを示している. ま
Publikováno v:
Applied optics. 29(28)
A new type of multiple imaging and multiple Fourier transformation system under coherent illumination using microlens arrays has been developed. The optical system is based on geometrical optics instead of convolution or diffraction. As a result, it
Publikováno v:
Applied Optics. 29:4077
The planar microlens is a 2-D integrated microlens fabricated by the selective ion exchange technique. This paper demonstrates a new class of planar microlens which has a high numerical aperture. The new planar microlens uses a swelling structure and
Publikováno v:
SPIE Proceedings.
Aberration properties of planar microlens arrays, which are small lenslet arrays fabricated by an ion exchange technique, are described. The optical set-up of the measurement system. is designed to combine a Mach-Zehnder interferometer, a microscope
Publikováno v:
Seventh Topical Meeting on Integrated and Guided-Wave Optics.
An optical branched circuit is one of the important devices in optical communication systems. Several different types of such optical device have been reported.1),2),3) We previously reported a 4-port branched circuit with planar gradient-index glass
Publikováno v:
Optical Fiber Sensors.
From safety considerations an all-optical waveguide-type oil leak sensor would be advantageous in hazardous enviroments such as Oil Refineries. The all-optical oil leak sensor is expected to be intrinsically safe, since any electrical or electronic t
Publikováno v:
SPIE Proceedings.
The paper describes a monolithically integrated planar microlens array and its applications. An ion exchange technology is applied to realize the microlens array with diameters of 10 - 1000 pm and N.A. of 0.25. Applications to optical fiber communica
Publikováno v:
Applied optics. 23(11)
Planar gradient-index glass waveguides with nearly circular cross sections have been fabricated by the ion migration method. A low-loss branched circuit and star coupler are demonstrated.