JPS5519859A - Ring laser - Google Patents

Ring laser

Info

Publication number
JPS5519859A
JPS5519859A JP9283078A JP9283078A JPS5519859A JP S5519859 A JPS5519859 A JP S5519859A JP 9283078 A JP9283078 A JP 9283078A JP 9283078 A JP9283078 A JP 9283078A JP S5519859 A JPS5519859 A JP S5519859A
Authority
JP
Japan
Prior art keywords
laser
diameter
pipe
pin hole
hole plate
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP9283078A
Other languages
Japanese (ja)
Inventor
Takashi Tsuchiya
Yoshio Hatsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9283078A priority Critical patent/JPS5519859A/en
Publication of JPS5519859A publication Critical patent/JPS5519859A/en
Pending legal-status Critical Current

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:For considerably reducing lock-in range in width, to insert a pin hole for limiting the diameter of laser beam in the light path in a ring oscillator. CONSTITUTION:A ring laser is made of reflections 1 - 3 and a laser tube 4 to generate laser beams 5 and 6. A pin hole plate 12 is inserted on the side where the laser beam 13 of said laser pipe 4 has a larger diameter so that the diameter of said laser beam 13 is not limited by the thin pipe end 10 of said laser pipe 4 but limited by said pin hole plate 12. The both sides of said pin hole plate 12 is coated with the black paint having a superior beam absorption factor or treated to blacken so that no beam is diffused backward from the vicinity of hole. Thereby, the diameter of the said layer beam 13 at the thin pipe end 10 of said laser pipe 4 is made much smaller than the inner diameter of said thin pipe 4. Therefore, the backward diffusion of beam from the thin pipe end 10 of said laser pipe 4 can be decreased, lock-in range can be considerably decreased in width, and a laser gyroscope can be improved in measurement accuracy.
JP9283078A 1978-07-28 1978-07-28 Ring laser Pending JPS5519859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9283078A JPS5519859A (en) 1978-07-28 1978-07-28 Ring laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9283078A JPS5519859A (en) 1978-07-28 1978-07-28 Ring laser

Publications (1)

Publication Number Publication Date
JPS5519859A true JPS5519859A (en) 1980-02-12

Family

ID=14065343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9283078A Pending JPS5519859A (en) 1978-07-28 1978-07-28 Ring laser

Country Status (1)

Country Link
JP (1) JPS5519859A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03263054A (en) * 1990-03-13 1991-11-22 Sharp Corp Intermediate tray for electrophotographing device
US5167407A (en) * 1990-05-09 1992-12-01 Sharp Kabushiki Kaisha Sheet feeding apparatus
US5181710A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Top sheet feeding apparatus
US5181709A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Sheet feeding apparatus
US5190276A (en) * 1990-03-13 1993-03-02 Sharp Kabushiki Kaisha Sheet feeding apparatus
JP4829101B2 (en) * 2003-03-18 2011-12-07 クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング Disc brakes especially for commercial vehicles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03263054A (en) * 1990-03-13 1991-11-22 Sharp Corp Intermediate tray for electrophotographing device
US5190276A (en) * 1990-03-13 1993-03-02 Sharp Kabushiki Kaisha Sheet feeding apparatus
US5181710A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Top sheet feeding apparatus
US5181709A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Sheet feeding apparatus
US5167407A (en) * 1990-05-09 1992-12-01 Sharp Kabushiki Kaisha Sheet feeding apparatus
JP4829101B2 (en) * 2003-03-18 2011-12-07 クノル−ブレムゼ ジステーメ フューア ヌッツファールツォイゲ ゲゼルシャフト ミット ベシュレンクテル ハフツング Disc brakes especially for commercial vehicles

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