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path difference between
Vertaling van "path difference between" in Japans
路差
The light path difference between arbitrary two optical beams from the incident position of the coherent light to the first optical system (4) and the slit (431) is set longer than the coherence length of the coherent light.
コヒーレント光の第１光学系（４）への入射位置から、複数の光ビームのうちの任意の２つがスリット（４３１）に至るまでの光路差が、コヒーレント光のコヒーレンス長よりも長くされる。
Intended is to calibrate the optical path difference between a measurement light and a reference light precisely and easily.
測定光と参照光の光路差の校正を精度よく、かつ容易に行えるようにする。
Provided are a laser ranging method and a laser ranging device for simultaneously irradiating two measurement points with measurement light beams, respectively, and changing the optical path difference between the measurement light beams to thereby measure the distance between the measurement points with high precision.
【課題】２つの測定点に測定光をそれぞれ同時に照射して、その測定光の光路差を変化させることにより測定点間の距離を高精度に測距するレーザ測距方法及びレーザ測距装置を提供することを目的とする。
Within the instrument the incoming light is split into two beams which propagate in separate optical paths to create an optical path difference between the two.
センサに入ってくる光を2つの光路に分け、両者に光路差を作って再び合成することにより干渉を起こさせます。
In this Fourier transform spectrometer and Fourier transform spectrometry, two light paths (a first and second light path) that are formed by means of a plurality of optical elements (112,114, 115) are provided between the entrance position of light to be measured and an interference position, and a phase difference spectrometer (11) having a phase difference between the light paths is used in a disposition state that disposes the plurality of optical elements in a manner so that the light path difference between the two light paths (first and second light path) becomes zero when supposing that each of the two light paths (first and second light path) are formed from the same medium.
本発明にかかるフーリエ変換型分光計およびフーリエ変換型分光方法では、被測定光の入射位置から干渉位置までの間に、複数の光学素子１１２、１１４および１１５によって形成される２個の第１および第２光路を備え、これら２個の第１および第２光路のそれぞれが仮に同一の媒質で形成されている場合にこれら２個の第１および第２光路間の光路差がゼロとなるように前記複数の光学素子を配置した前記配置状態において前記光路間に位相差を持つ有位相差干渉計１１が用いられる。
A Fourier transform spectrometer and a Fourier transform spectroscopic method according to the present invention, wherein a plurality of interferograms of predetermined light are continuously measured by an interferometer in a time based on the amplitude fluctuation cycle of an optical path difference forming optical element that produces an optical path difference between two optical paths of the interferometer, and a spectrum is obtained on the basis of the plurality of interferograms.
本発明にかかるフーリエ変換型分光計およびフーリエ変換型分光方法は、干渉計の２個の光路間に光路差を生じさせる光路差形成光学素子における振幅の変動周期に基づく時間で、前記干渉計によって所定光のインターフェログラムが連続的に複数個測定され、これら複数のインターフェログラムに基づいて、スペクトルが求められる。
The AWG is configured to change an optical path difference between the first and second arm waveguides in accordance with a temperature, thereby compensating the temperature dependence left in the array waveguide diffraction grating.
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