ALIGNMENT OF MIRROR AND DAMPING APPARATUS

    公开(公告)号:JPH02298908A

    公开(公告)日:1990-12-11

    申请号:JP7538090

    申请日:1990-03-23

    Abstract: PURPOSE: To realize an accurate, high-speed, low-priced and compact mirror tilt mechanism by providing the device with a central supporting unit having rigidity, a flexible rubber damper member and plural electromagnetic force generating units. CONSTITUTION: This device is constituted so that the mirror of an interferometer is dynamically matched to obtain desired orthogonality. The mirror supporting body 24 supporting the mirror 26 is fixed and coupled with a base unit 12 through a support 20 arranged in the center and further a collar 22 consisting of viscoelasic impact absorbing material is formed as a damping means to surround a mating standoff 16 including the support 20. Four electromagnetic units 32 to 38 are arranged at four corners of a square centering the standoff 16 between a mirror assembly 14 and the base 12. When a current is applied to a coil 40, the inclination of the mirror supporting body 24 to the base 12 is adjusted by the magnetic field of a permanent magnet 42 and a pole piece 44.

    EXTREMELY WEAK LIGHT SPECTROSCOPIC DEVICE

    公开(公告)号:JPH01112122A

    公开(公告)日:1989-04-28

    申请号:JP26831687

    申请日:1987-10-26

    Abstract: PURPOSE:To easily perform spectral diffraction in a short time by using a two-dimensional element counting device capable of detecting photon photodetection position as the detector of a spatial interferogram type Fourier spectroscopic device. CONSTITUTION:Light which is incident through a collimator lens L1 from an extremely weak light emitting body M such as an organic material is passed through a polarizer P, a Wollaston prism W, an analyzer A, and a lens L2 (L0) to form an interferogram on the photoelectric surface 2 of the two-dimensional photon counter tube 1 of the detector D. Photons incident on the photoelectric surface 2 are converted into photoelectrons, which are passed through meshes 3 and electron lens 4 and amplified by a microchannel plate 5 to strike on a fluorescent screen 6, thereby forming bright points. Those bright points are image-formed on the photoelectron surface of a low-afterimage vidicon 8. The spatial frequency distribution of the bright points is analyzed to find the spectrum distribution of a light source. This device eliminate the need for filter replacement and the spectral diffraction is performed in a short time.

    SYSTEM FOR JUDGING MOVING DIRECTION OF MOVABLE MIRROR IN MICHELSON INTERFERROMETER

    公开(公告)号:JPS62103531A

    公开(公告)日:1987-05-14

    申请号:JP24348085

    申请日:1985-10-30

    Applicant: JEOL LTD

    Abstract: PURPOSE:To easily judge the moving direction of a movable mirror, by providing a recessed or protruded part to the movable mirror and utilizing the light path difference between the recessed or protruded part and a part other than this. CONSTITUTION:As the mechanisms of a moving direction judging system, a movable mirror driving part 1, laser oscillators 2a, 2b, reflective mirrors 3a, 3b, a prism 4, a movable mirror 5 and photodiodes 6a, 6b are provided. Further, a mirror surface, of which the laser reflecting position is shifted by a lambda/8 wavelength by a mirror (the protruded part of the movable mirror 6) having a thickness of a lambda/8 wavelength laminated to the part exposed to laser beam of the movable mirror 5, is formed with respect to one laser beam. Then, reference laser beam is allowed to be incident on the part of the movable mirror to obtain a reference laser interferrogram and direction judging laser beam is allowed to be incident on the part to which the mirror having the thickness of the lambda/8 wavelength to obtain a direction judging laser interferrogram. Subsequently, by comparing the phase relation between both interferrograms, the moving direction of the movable mirror is judged.

    245.
    发明专利
    失效

    公开(公告)号:JPS61501875A

    公开(公告)日:1986-08-28

    申请号:JP50236585

    申请日:1985-04-12

    FOURIER TRANSFORM TYPE INFRARED SPECTROPHOTOMETER

    公开(公告)号:JPS61149833A

    公开(公告)日:1986-07-08

    申请号:JP27870184

    申请日:1984-12-24

    Applicant: SHIMADZU CORP

    Inventor: YOSHIKAWA OSAMU

    Abstract: PURPOSE:To make possible automatic and always correct spectral measurement by attaching a driving means to a photodetector and adjusting the position of the photodetector in the direction where the difference between the max. value and min. value of an interferogram is maximized. CONSTITUTION:Driving devices (motors) Mx, My are provided to make the photodetector 5 movable in biaxial directions within the plane perpendicular to the optical axis of a Michelson interferometer in the case of irradiating the light from a light source 4 to a stationary mirror 1 and a moving mirror 2, conductive the reflected light thereof to a condenser mirror to form the Michelson interferometer and making incident the light on the photodetector 5. A control circuit 7 for controlling the devices Mx, My is further provided. The interferogram is measured by the photodetector 5 and the position thereof is adjusted by the circuit 7 so that the difference between the max. value and min. value thereof is maximized. Then the center of the photodetecting surface of the photodetector 5 is made coincident with the optical axis of the interferometer.

    Fourier transform multiwavelength photometer
    247.
    发明专利
    Fourier transform multiwavelength photometer 失效
    FOURIER变换多波长光电测定仪

    公开(公告)号:JPS6199825A

    公开(公告)日:1986-05-17

    申请号:JP22043884

    申请日:1984-10-22

    Applicant: Hitachi Ltd

    Inventor: INOUE KATSU

    CPC classification number: G01J3/453

    Abstract: PURPOSE:To obtain a final result in a short time by employing discrete Fourier transform and performing integration at every plural spectral points every time data on one point in an interference pattern is obtained. CONSTITUTION:The interference pattern 15 measured by an interferometer 10 is inputted to an A/D converter 20 in time series to obtain a digital value 42, which is inputted to a digital multiplier 40. The value of specific wavelength lambda1 stored in a wavelength storage device 60, on the other hand, is stored in a memory 61 and inputted to a cosine function generator 30, which inputs a phase corresponding to the optical path difference (x) of the interference pattern f(x) and the cosine function value 43 of frequency in inverse proportion to the wavelength lambda1 to a multiplier 40. The multiplier 40 multiplies the digital value 42 and function value 43 to obtain the product 44. A memory 51, on the other hand, is stored with spectral intensity S(lambda1) corresponding to the wavelength lambda1 and this value and product 44 are added together and stored in the memory 51 again. Thus, real-time processing is performed to obtain the final result in a short time.

    Abstract translation: 目的:通过采用离散傅立叶变换在每个多个光谱点上每次获得干涉图案中的一个点上的数据时,在短时间内获得最终结果。 构成:由干涉仪10测量的干涉图形15以时间序列输入到A / D转换器20,以获得输入到数字乘法器40的数字值42.存储在波长存储器中的特定波长λ1的值 另一方面,装置60存储在存储器61中并输入到余弦函数发生器30,余弦函数发生器30输入与干涉图案f(x)的光程差(x)和余弦函数值43相对应的相位 乘法器40将数字值42和函数值43相乘以获得乘积44.另一方面,存储器51以光谱强度S(λ1)存储, 对应于波长λ1,并将该值和乘积44相加在一起并再次存储在存储器51中。 因此,执行实时处理以在短时间内获得最终结果。

    Infrared spectrophotometer of fourier transform system
    249.
    发明专利
    Infrared spectrophotometer of fourier transform system 失效
    傅立叶变换系统的红外分光光度计

    公开(公告)号:JPS6131930A

    公开(公告)日:1986-02-14

    申请号:JP15292284

    申请日:1984-07-25

    Applicant: Hitachi Ltd

    CPC classification number: G01J3/453

    Abstract: PURPOSE:To cut short-wavelength components and to execute a measurement by a high-sensitivity polarization and modulation system and an infrared photo- acoustic system by installing an optical filter made of a material which hardly transmits short-wavelength light of

    Abstract translation: 目的:通过安装由几乎不发射<= 0.5mum的短波长光的材料制成的滤光片,来切割短波长分量并通过高灵敏度偏振和调制系统和红外光声系统进行测量 在光源和检测器之间的光路上。 构成:通过在例如5mm的KBr板上气相沉积锗形成的滤光器7。 如图所示,将厚度为1-10μm的厚度安装在光源1和检测器8之间的光路上。 该滤光片几乎不发射<=0.5μm的短波长分量,而是发射红外光,从而在没有傅立叶变换型红外分光光度计的任何电滤波器的情况下进行无噪声测量操作。 也就是说,短波长分量被切断,测量由高灵敏度偏振调制系统和红外光声系统进行。

    Interferometer
    250.
    发明专利
    Interferometer 失效
    干扰仪

    公开(公告)号:JPS6130725A

    公开(公告)日:1986-02-13

    申请号:JP15377184

    申请日:1984-07-24

    Applicant: Jeol Ltd

    CPC classification number: G01J3/4537

    Abstract: PURPOSE:To repeatedly change the light path length of split beam without providing a reciprocal movement mechanism, by rotating a plurality of phase plates arranged on the light path between a beam splitter and a fixed reflective mirror. CONSTITUTION:On the light path between a splitter 11 and a fixed reflective mirror 13, phase plates 14, 15 comprising a material having a refractive index higher than that of the atmosphere of the light path are arranged so that the opposed surfaces of the splitter 11 and the fixed mirror 13 are respectively made vertical to an optical axis O and the opposed surfaces of the phase plates 14, 15 are formed in parallel so as to be inclined at a predetermined angle to the optical axis O. When the phase plates 14, 15 are rotated around axes S, S', which are parallel to the optical axis O and spaced apart by a predetermined distance, by a rotary mechanism, the light path length between the splitter 11 and the fixed mirror 13 is changed continuously and periodically. By this mechanism, the reciprocal movement of on optical system is unnecessary and the light path length of beam split by the splitter can be changed.

    Abstract translation: 目的:通过旋转布置在分束器和固定反射镜之间的光路上的多个相位板,可以反复改变分割光束的光路长度而不提供往复运动机构。 构成:在分离器11和固定反射镜13之间的光路上,包括折射率高于光路的气氛的材料的相位板14,15被布置成使得分离器11的相对表面 并且固定镜13分别垂直于光轴O并且相位板14,15的相对表面平行地形成为相对于光轴O以预定角度倾斜。当相位板14, 15通过旋转机构围绕平行于光轴O的轴线S,S'旋转预定距离,分离器11和固定反射镜13之间的光路长度连续且周期性地改变。 通过该机构,光学系统的往复运动是不必要的,并且可以改变由分流器分裂的光束的光路长度。

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