GB1392544A - Optical apparatus comprising a cylindrical spacer element of circular cro-ssection - Google Patents

Optical apparatus comprising a cylindrical spacer element of circular cro-ssection

Info

Publication number
GB1392544A
GB1392544A GB2414472A GB2414472A GB1392544A GB 1392544 A GB1392544 A GB 1392544A GB 2414472 A GB2414472 A GB 2414472A GB 2414472 A GB2414472 A GB 2414472A GB 1392544 A GB1392544 A GB 1392544A
Authority
GB
United Kingdom
Prior art keywords
tube
ssection
spacer element
optical apparatus
cylindrical spacer
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.)
Expired
Application number
GB2414472A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1392544A publication Critical patent/GB1392544A/en
Expired 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • 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
    • H01S3/02—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
  • Glass Melting And Manufacturing (AREA)
GB2414472A 1971-05-26 1972-05-23 Optical apparatus comprising a cylindrical spacer element of circular cro-ssection Expired GB1392544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7107211A NL162519C (nl) 1971-05-26 1971-05-26 Optisch apparaat, voorzien van een cirkelcilindrisch afstandslichaam, dat aan beide einden een oplegrand bezit.

Publications (1)

Publication Number Publication Date
GB1392544A true GB1392544A (en) 1975-04-30

Family

ID=19813253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2414472A Expired GB1392544A (en) 1971-05-26 1972-05-23 Optical apparatus comprising a cylindrical spacer element of circular cro-ssection

Country Status (5)

Country Link
BE (1) BE783892A (enExample)
CA (1) CA1005267A (enExample)
FR (1) FR2139107B1 (enExample)
GB (1) GB1392544A (enExample)
NL (1) NL162519C (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113189833A (zh) * 2021-03-30 2021-07-30 杭州行开医学影像技术有限公司 一种3d影像拍摄结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113189833A (zh) * 2021-03-30 2021-07-30 杭州行开医学影像技术有限公司 一种3d影像拍摄结构
CN113189833B (zh) * 2021-03-30 2022-07-05 杭州行开医学影像技术有限公司 一种3d影像拍摄结构

Also Published As

Publication number Publication date
DE2224046B2 (de) 1976-04-08
FR2139107B1 (enExample) 1977-12-23
DE2224046A1 (de) 1972-12-07
CA1005267A (en) 1977-02-15
NL7107211A (enExample) 1972-11-28
FR2139107A1 (enExample) 1973-01-05
NL162519C (nl) 1980-05-16
BE783892A (fr) 1972-11-24
NL162519B (nl) 1979-12-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee