公开(公告)号：US06335529B1

公开(公告)日：2002-01-01

申请号：US09509362

申请日：2000-03-27

Applicant: Hiroshi Sekii ,  Akihisa Matsuyama

Inventor： Hiroshi Sekii ,  Akihisa Matsuyama

IPC: G01J142

CPC classification number: G01J1/58

Abstract: An ultraviolet detector has a wavelength conversion element 1 of a length in an incident direction of UV light 2 set longer than the direction orthogonal to the incident angle, and a light receiving element 3 arranged at a side plane 1a of wavelength conversion element 1. Unconverted ultraviolet does not exit wavelength conversion element 1, and is propagated downwards to be attenuated. Visible light having the wavelength converted in wavelength conversion element 1 is propagated in all directions and received at light receiving element 3. Light receiving element 3 detects the quantity of light according to the incident amount of ultraviolet. As a result, the detection sensitivity is ensured and degradation of the light receiving element caused by ultraviolet radiation does not occur.

Abstract translation: 紫外线检测器具有波长转换元件1，该波长转换元件1的紫外线2的入射方向的长度大于与入射角正交的方向的长度;以及光接收元件3，其布置在波长转换元件1的侧面1a处。未转换 紫外线不会离开波长转换元件1，并且向下传播以被衰减。 在波长转换元件1中具有波长转换的可见光在所有方向上传播并被接收在光接收元件3处。光接收元件3根据入射的紫外线量来检测光量。 结果，确保了检测灵敏度，并且不会发生由紫外线辐射引起的光接收元件的劣化。

公开(公告)号：US06201235B1

公开(公告)日：2001-03-13

申请号：US09300287

申请日：1999-04-27

Applicant: Nobuaki Takeuchi ,  Yoshiki Yanagisawa ,  Jun Kikuchi ,  Nobukazu Banjo ,  Yoshio Endou ,  Mitsuru Shinagawa ,  Tadao Nagatsuma ,  Junzo Yamada

Inventor： Nobuaki Takeuchi ,  Yoshiki Yanagisawa ,  Jun Kikuchi ,  Nobukazu Banjo ,  Yoshio Endou ,  Mitsuru Shinagawa ,  Tadao Nagatsuma ,  Junzo Yamada

IPC: G01J142

CPC classification number: G01R13/347

Abstract: An electro-optic sampling oscilloscope facilitates adjustment of signal-to-noise ratio caused by electrical, optical and temperature factors. The instrument includes: a light generation section for generation a reference laser beam; a crystal, exhibiting an electro-optic response behavior so as to receive the reference laser beam and to result in changing a refractive index in accordance with electrical field strength generated by target signal; a reflection mirror formed on a rear surface of the crystal for reflecting the reference laser beam that has passed through the crystal; an optical circuit for separating the reference laser beam reflected from the reflection mirror into a first signal light and a second signal light; a first photo-electric conversion section for converting the first signal light into first electrical signals; a second photo-electric conversion section for converting the second signal light into second electrical signals; a differential amplification section for differentially amplifying the first electrical signals and the second electrical signals, and for outputting differentially amplified signals as detection signals of the target signal; and a gain adjustment section for varying gains to adjust a signal-to-noise ratio while the reference laser beam is not being radiated into the crystal, so as to match strength levels of the first electrical signals and the second electrical signals in association with feedback signals of the target signal.

Abstract translation: 电光采样示波器有助于调整由电气，光学和温度因素引起的信噪比。 仪器包括：用于产生参考激光束的发光部分; 呈现电光响应行为以便接收参考激光束并导致根据由目标信号产生的电场强度改变折射率的晶体; 反射镜，其形成在晶体的后表面上，用于反射已经通过晶体的参考激光束; 用于将从反射镜反射的参考激光束分离成第一信号光和第二信号光的光学电路; 第一光电转换部分，用于将第一信号光转换成第一电信号; 第二光电转换部分，用于将第二信号光转换成第二电信号; 差分放大部分，用于差分放大第一电信号和第二电信号，并用于输出差分放大的信号作为目标信号的检测信号; 以及增益调整部分，用于在参考激光束不被辐射到晶体中时改变增益以调节信噪比，以便与反馈相关联地匹配第一电信号和第二电信号的强度电平 目标信号的信号。

公开(公告)号：USH1939H1

公开(公告)日：2001-02-06

申请号：US06925853

申请日：1986-09-02

Applicant: Myer Geller

Inventor： Myer Geller

IPC: G01J142

Abstract: An early warning system for detecting the UV from a missile plume has a wide field of view, large spectral bandwidth, solar blind detector. A coated detector passes only a spectral region that embraces UV signals of interest and a wavelength shifter includes a material that shifts the impinging UV energy into a spectrum that embraces the frequencies emitted by fluorescent photons. A photomultiplier tube responsive to the fluorescent emissions provides a responsive read-out indicative of an incoming missile.