IT1271254B - Dispositivo di mascheratura ottica - Google Patents

Dispositivo di mascheratura ottica

Info

Publication number
IT1271254B
IT1271254B ITMI942078A ITMI942078A IT1271254B IT 1271254 B IT1271254 B IT 1271254B IT MI942078 A ITMI942078 A IT MI942078A IT MI942078 A ITMI942078 A IT MI942078A IT 1271254 B IT1271254 B IT 1271254B
Authority
IT
Italy
Prior art keywords
masking device
optical masking
optical
masking
Prior art date
Application number
ITMI942078A
Other languages
English (en)
Inventor
Mikio Maeda
Masaaki Furuhashi
Original Assignee
Ando Electric
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ando Electric filed Critical Ando Electric
Publication of ITMI942078A0 publication Critical patent/ITMI942078A0/it
Publication of ITMI942078A1 publication Critical patent/ITMI942078A1/it
Application granted granted Critical
Publication of IT1271254B publication Critical patent/IT1271254B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/044—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using shutters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3154—Details of the opto-mechanical connection, e.g. connector or repeater

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Couplings Of Light Guides (AREA)
ITMI942078A 1993-10-13 1994-10-12 Dispositivo di mascheratura ottica IT1271254B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5280049A JPH07113723A (ja) 1993-10-13 1993-10-13 Ｏｔｄｒの光マスキング装置

Publications (3)

Publication Number Publication Date
ITMI942078A0 ITMI942078A0 (it) 1994-10-12
ITMI942078A1 ITMI942078A1 (it) 1996-04-12
IT1271254B true IT1271254B (it) 1997-05-27

Family

ID=17619591

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI942078A IT1271254B (it) 1993-10-13 1994-10-12 Dispositivo di mascheratura ottica

Country Status (4)

Country Link
US (1) US5557401A (it)
JP (1) JPH07113723A (it)
DE (1) DE4437821A1 (it)
IT (1) IT1271254B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2914217B2 (ja) * 1995-04-28 1999-06-28 安藤電気株式会社 光線路試験装置およびその方法
JP4041177B2 (ja) * 1996-07-09 2008-01-30 富士通株式会社 光分岐挿入装置及び光分岐挿入装置を有する光伝送システム
DE19649594A1 (de) 1996-11-29 1998-06-04 Deutsche Telekom Ag Optisches Impulsreflektometer
US6368866B1 (en) 1998-08-03 2002-04-09 Reference Diagnostics, Inc. Rapid separation assay for total iron binding capacity
JP2003050181A (ja) * 2001-08-03 2003-02-21 Ando Electric Co Ltd 光ファイバ測定装置
FR2874273B1 (fr) * 2004-08-10 2006-09-22 Commissariat Energie Atomique Generateur impulsionnel programmable electriquement et notamment un generateur impulsionnel de profils de phase et d'intensite de tres haute resolution
CN102445326A (zh) * 2011-09-20 2012-05-09 电子科技大学 基于时域的光谱探测系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1449820A (fr) * 1965-07-05 1966-05-06 Centre Nat Rech Scient Dispositif de localisation photo-électrique
US4524271A (en) * 1983-04-21 1985-06-18 Cilco, Inc. Laser blocking shutter
DE3616798A1 (de) * 1986-05-17 1987-11-19 Philips Patentverwaltung Verfahren und anordnung zur messung der daempfung von lichtwellenleitern nach dem rueckstreuverfahren
US4769534A (en) * 1986-11-17 1988-09-06 Tektronix, Inc. Optical detector with storage effects reduction
US4989971A (en) * 1989-07-14 1991-02-05 Tektronix, Inc. Automatic mask trigger for an optical time domain reflectometer
FR2672754B1 (fr) * 1991-02-13 1992-12-24 Alcatel Cable Systeme de localisation de reflexions de fresnel le long d'une fibre optique.

Also Published As

Publication number Publication date
JPH07113723A (ja) 1995-05-02
DE4437821A1 (de) 1995-04-20
ITMI942078A0 (it) 1994-10-12
ITMI942078A1 (it) 1996-04-12
US5557401A (en) 1996-09-17

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970827