IT1147598B - Perfezionamento nei giroscopi a laser,in particolare nei dispositivi assorbitori di riflessioni delle on de elettromagnetiche - Google Patents

Perfezionamento nei giroscopi a laser,in particolare nei dispositivi assorbitori di riflessioni delle on de elettromagnetiche

Info

Publication number: IT1147598B
Authority: IT; Italy
Prior art keywords: reflector; electromagnetic; improvement; absorbing devices; laser gyroscopes
Prior art date: 1981-02-17

Application number

IT47746/82A

Other languages

English (en)

Other versions

IT8247746A0 (it

Inventor

Michael S Perlmutter

Lawrence L Clampitt

Original Assignee

Raytheon Co

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.)

1981-02-17

Filing date

1982-02-08

Publication date

1986-11-19

1982-02-08 Application filed by Raytheon Co filed Critical Raytheon Co

1982-02-08 Publication of IT8247746A0 publication Critical patent/IT8247746A0/it

1986-11-19 Application granted granted Critical

1986-11-19 Publication of IT1147598B publication Critical patent/IT1147598B/it

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/66—Ring laser gyrometers
- G01C19/667—Ring laser gyrometers using a multioscillator ring laser

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Electromagnetism (AREA)
Optics & Photonics (AREA)
Plasma & Fusion (AREA)
Power Engineering (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Gyroscopes (AREA)
Lasers (AREA)

IT47746/82A 1981-02-17 1982-02-08 Perfezionamento nei giroscopi a laser,in particolare nei dispositivi assorbitori di riflessioni delle on de elettromagnetiche IT1147598B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/235,320 US4494873A (en)	1981-02-17	1981-02-17	Electromagnetic wave reflections absorber

Publications (2)

Publication Number	Publication Date
IT8247746A0 IT8247746A0 (it)	1982-02-08
IT1147598B true IT1147598B (it)	1986-11-19

Family

ID=22885008

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT47746/82A IT1147598B (it)	1981-02-17	1982-02-08	Perfezionamento nei giroscopi a laser,in particolare nei dispositivi assorbitori di riflessioni delle on de elettromagnetiche

Country Status (14)

Country	Link
US (1)	US4494873A (it)
JP (1)	JPS57153484A (it)
AU (1)	AU550724B2 (it)
BE (1)	BE892159A (it)
CA (1)	CA1190308A (it)
CH (1)	CH656707A5 (it)
DE (1)	DE3205273A1 (it)
DK (1)	DK164332C (it)
FR (1)	FR2500154B1 (it)
GB (1)	GB2093264A (it)
IT (1)	IT1147598B (it)
NL (1)	NL8200474A (it)
NO (1)	NO162585C (it)
SE (1)	SE451888B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4519708A (en) *	1981-05-20	1985-05-28	Raytheon Company	Mode discrimination apparatus
GB2184285B (en) *	1983-11-07	1990-08-01	Raytheon Co	Ring laser gyroscope
US4578793A (en) *	1984-07-13	1986-03-25	The Board Of Trustees Of The Leland Stanford Junior University	Solid-state non-planar internally reflecting ring laser
US5080487A (en) *	1986-11-06	1992-01-14	Litton Systems, Inc.	Ring laser gyroscope with geometrically induced bias
US4899343A (en) *	1988-01-20	1990-02-06	Ciba-Geigy Ag	Laser layout
US4962506A (en) *	1988-04-14	1990-10-09	Litton Systems, Inc.	Scatter symmetrization in multi-mode ring laser gyros
US4966437A (en) *	1988-04-19	1990-10-30	Litton Systems, Inc.	Fault-tolerant anti-reflective coatings
US5495335A (en) *	1989-04-05	1996-02-27	Litton Systems, Inc.	Ring laser gyroscope with a non-loss inducing mode suppression mechanism
US5959727A (en) *	1997-08-01	1999-09-28	Raytheon Company	System and method for discriminating between direct and reflected electromagnetic energy
US6618151B2 (en) *	2001-01-17	2003-09-09	Honeywell International Inc.	Ring laser gyroscope with offset aperture
US6466710B1 (en) *	2001-11-07	2002-10-15	Lockheed Martin Corporation	Passive identification friend or foe (IFF) system
FR2853061B1 (fr) *	2003-03-25	2006-01-20	Thales Sa	Gyrolaser a etat solide stabilise
US6788715B1 (en) *	2003-05-30	2004-09-07	Princeton Optronics	Stabilized laser using multiphoton absorption to reduce intensity fluctuations
US7126085B1 (en) *	2005-08-03	2006-10-24	Hilary Boehme	Self-darkening shield for replaceably attaching to a torch
US20100315698A1 (en) *	2007-04-10	2010-12-16	Dixon George J	Modular ring resonator
US8422022B2 (en) *	2010-08-05	2013-04-16	Honeywell International Inc.	Increasing the scale factor of gas laser based gyroscopes with an external gain saturation beam
EP2581775A1 (en) *	2011-10-14	2013-04-17	Astrium Limited	Resonator Optimisation
US9065241B2 (en) *	2012-05-11	2015-06-23	Massachusetts Institute Of Technology	Methods, systems, and apparatus for high energy optical-pulse amplification at high average power

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3214596A (en) *	1962-10-31	1965-10-26	Machinery Electrification Inc	Photoelectric sensor structure including light source and inclined lens
US3892486A (en) *	1973-04-23	1975-07-01	United Aircraft Corp	Sequentially switched laser gyro
US4110045A (en) *	1976-01-02	1978-08-29	Raytheon Company	Electromagnetic wave ring resonator
US4284329A (en) *	1978-01-03	1981-08-18	Raytheon Company	Laser gyroscope system
US4272158A (en) *	1979-03-02	1981-06-09	Coherent, Inc.	Broadband optical diode for a ring laser

1981
- 1981-02-17 US US06/235,320 patent/US4494873A/en not_active Expired - Lifetime
1982
- 1982-01-21 CA CA000394658A patent/CA1190308A/en not_active Expired
- 1982-01-28 AU AU79951/82A patent/AU550724B2/en not_active Ceased
- 1982-02-08 IT IT47746/82A patent/IT1147598B/it active
- 1982-02-08 NL NL8200474A patent/NL8200474A/nl not_active Application Discontinuation
- 1982-02-15 DE DE19823205273 patent/DE3205273A1/de not_active Withdrawn
- 1982-02-15 FR FR8202414A patent/FR2500154B1/fr not_active Expired
- 1982-02-16 GB GB8204551A patent/GB2093264A/en not_active Withdrawn
- 1982-02-16 DK DK066182A patent/DK164332C/da not_active IP Right Cessation
- 1982-02-16 BE BE0/207330A patent/BE892159A/fr not_active IP Right Cessation
- 1982-02-16 NO NO820471A patent/NO162585C/no unknown
- 1982-02-17 JP JP57024284A patent/JPS57153484A/ja active Pending
- 1982-02-17 SE SE8200964A patent/SE451888B/sv not_active IP Right Cessation
- 1982-02-17 CH CH988/82A patent/CH656707A5/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
US4494873A (en)	1985-01-22
NO820471L (no)	1982-08-18
SE8200964L (sv)	1982-08-18
DK164332C (da)	1992-12-21
CH656707A5 (de)	1986-07-15
FR2500154B1 (fr)	1986-02-21
IT8247746A0 (it)	1982-02-08
AU7995182A (en)	1982-08-26
JPS57153484A (en)	1982-09-22
NO162585C (no)	1990-01-17
DE3205273A1 (de)	1982-09-16
DK66182A (da)	1982-08-18
BE892159A (fr)	1982-06-16
DK164332B (da)	1992-06-09
NO162585B (no)	1989-10-09
FR2500154A1 (fr)	1982-08-20
NL8200474A (nl)	1982-09-16
CA1190308A (en)	1985-07-09
AU550724B2 (en)	1986-04-10
SE451888B (sv)	1987-11-02
GB2093264A (en)	1982-08-25

Publication	Publication Date	Title
IT1147598B (it)	1986-11-19	Perfezionamento nei giroscopi a laser,in particolare nei dispositivi assorbitori di riflessioni delle on de elettromagnetiche
FI840808A7 (fi)	1984-02-29	Suojapalkki.
DE3788440D1 (de)	1994-01-27	Lichtabsorbierende Beschichtung.
FI923376A7 (fi)	1992-07-24	Precisionslandningssystem.
DE59008467D1 (de)	1995-03-23	Laserschutzbrille.
DE69015365D1 (de)	1995-02-02	Laserradausrichtungssystem.
FI823285A7 (fi)	1983-03-25	Mikrokirurginen laaseri.
DE59102489D1 (de)	1994-09-15	Aufprallträger.
IT8422291A0 (it)	1984-08-09	Agenti antiinfiammatori oftalmici.
DE69017680D1 (de)	1995-04-13	Schockrichtungsdetektor.
FR2497570B1 (fr)	1986-10-24	Gyroscope a laser
DE69113100D1 (de)	1995-10-26	Monofrequenter Laser.
FI873878L (fi)	1987-09-08	Profilbalk.
FI904388A7 (fi)	1992-03-06	Tidsanpassningslogik foer mobiltelefon i gsm-systemet.
DE3776534D1 (de)	1992-03-12	Laserstrahlenschutz.
ES510159A0 (es)	1984-01-01	"perfeccionamientos en los aparatos de soldadura".
NO900648L (no)	1990-08-13	Seksjonsdelt strekkramme for malerlerret.
IT1215630B (it)	1990-02-22	Derivati di ergolina.
FI831616A7 (fi)	1983-11-11	Kinatsoliinijohdannaiset.
NL192466B (nl)	1997-04-01	Gyrometer.
FI830553A7 (fi)	1983-08-21	Pyrimidonijohdannaiset.
FI832051A7 (fi)	1983-12-26	Piipun kalvin.
NO168794C (no)	1992-04-01	Straalebuntformende innretning.
DE69004761D1 (de)	1994-01-05	Energieabsorbierendes Bauelement.
DE69108810D1 (de)	1995-05-18	Gepulster Laser.

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19960227