GB1420701A – Optical alignment apparatus
– Google Patents
GB1420701A – Optical alignment apparatus
– Google Patents
Optical alignment apparatus
Info
Publication number
GB1420701A
GB1420701A
GB5451473A
GB5451473A
GB1420701A
GB 1420701 A
GB1420701 A
GB 1420701A
GB 5451473 A
GB5451473 A
GB 5451473A
GB 5451473 A
GB5451473 A
GB 5451473A
GB 1420701 A
GB1420701 A
GB 1420701A
Authority
GB
United Kingdom
Prior art keywords
light
axis
tube
alignment
discs
Prior art date
1973-11-23
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
GB5451473A
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.)
IBM United Kingdom Ltd
Original Assignee
IBM United Kingdom 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.)
1973-11-23
Filing date
1973-11-23
Publication date
1976-01-14
1973-11-23
Application filed by IBM United Kingdom Ltd
filed
Critical
IBM United Kingdom Ltd
1973-11-23
Priority to GB5451473A
priority
Critical
patent/GB1420701A/en
1974-08-14
Priority to DE19742439050
priority
patent/DE2439050A1/en
1974-09-25
Priority to FR7433128A
priority
patent/FR2252558B1/fr
1974-10-18
Priority to JP11952174A
priority
patent/JPS5087046A/ja
1976-01-14
Publication of GB1420701A
publication
Critical
patent/GB1420701A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01B11/00—Measuring arrangements characterised by the use of optical techniques
G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
Abstract
1420701 Optical alignment IBM UNITED KINGDOM Ltd 23 Nov 1973 54514/73 Heading G2J Alignment apparatus e.g. for an ellipsometer for aligning a light beam with an axis of rotation A comprises a rotary device 1 having two spaced apart discs 2, 3 mounted for rotation in synchronism about the axis A. Each disc 2, 3 is perpendicular to the axis A and has an orifice 4, 5 positioned on the axis, alignment being indicated when the light beam is adjusted in direction to give a steady quantity of light through the orifices while the discs are rotated. In the preferred arrangement, Fig.5, the orifices 4, 5 are identical semicircles with the mid-point of each diameter lying on the axis A. Parallel Alignment. An apparatus similar to that of Fig.5 is used except that one of discs 2, 3 is rotated relative to the other through 180 degrees about axis A. Both discs are rigidly attached to tube 20 which is rotated by motor 24 and transmission 23 while a light beam of preferably circular cross-section is directed through the tube 20. If the beam is not parallel to axis A, a varying amount of light will be detected e.g. by a photomultiplier at the other end of the tube. The beam is thus changed in direction until a steady, low quantity of light is detected. Coaxial alignment. Having achieved parallel alignment, discs 2, 3 are arranged as shown in the Fig. and a parallel beam of light is directed through the tube. If the beam is not coaxial with the tube, a varying light output is detected so the beam is adjusted until a steady, low quantity of light is detected. The cylinder may be 15-20 cm long, the orifices may be 5-10 mm in diameter and the beam may be 2 mm in diameter. The tube may rotate at 100 r.p.m. Circular, square or triangular orifices 4, 5 may be used.
GB5451473A
1973-11-23
1973-11-23
Optical alignment apparatus
Expired
GB1420701A
(en)
Priority Applications (4)
Application Number
Priority Date
Filing Date
Title
GB5451473A
GB1420701A
(en)
1973-11-23
1973-11-23
Optical alignment apparatus
DE19742439050
DE2439050A1
(en)
1973-11-23
1974-08-14
OPTICAL ALIGNMENT DEVICE
FR7433128A
FR2252558B1
(en)
1973-11-23
1974-09-25
JP11952174A
JPS5087046A
(en)
1973-11-23
1974-10-18
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB5451473A
GB1420701A
(en)
1973-11-23
1973-11-23
Optical alignment apparatus
Publications (1)
Publication Number
Publication Date
GB1420701A
true
GB1420701A
(en)
1976-01-14
Family
ID=10471269
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5451473A
Expired
GB1420701A
(en)
1973-11-23
1973-11-23
Optical alignment apparatus
Country Status (4)
Country
Link
JP
(1)
JPS5087046A
(en)
DE
(1)
DE2439050A1
(en)
FR
(1)
FR2252558B1
(en)
GB
(1)
GB1420701A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2176291A
(en)
*
1985-06-03
1986-12-17
Gen Electric Plc
Alignment of tubular members
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0000259A1
(en)
*
1977-06-23
1979-01-10
Europäische Atomgemeinschaft (Euratom)
Process and apparatus for the alignment of a transducer forming part of a radiation generator
CN104165604B
(en)
*
2014-07-24
2016-08-17
中北大学
A kind of single laser list PSD storage type Deep Hole Straightness Test Device
CN104165603B
(en)
*
2014-07-24
2016-08-17
中北大学
A kind of single laser wireless Deep Hole Straightness Test Device of list PSD
CN107917682B
(en)
*
2016-10-10
2019-06-25
中北大学
External Deep Hole Straightness Test Device and method
1973
1973-11-23
GB
GB5451473A
patent/GB1420701A/en
not_active
Expired
1974
1974-08-14
DE
DE19742439050
patent/DE2439050A1/en
active
Pending
1974-09-25
FR
FR7433128A
patent/FR2252558B1/fr
not_active
Expired
1974-10-18
JP
JP11952174A
patent/JPS5087046A/ja
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2176291A
(en)
*
1985-06-03
1986-12-17
Gen Electric Plc
Alignment of tubular members
Also Published As
Publication number
Publication date
DE2439050A1
(en)
1975-05-28
FR2252558A1
(en)
1975-06-20
JPS5087046A
(en)
1975-07-12
FR2252558B1
(en)
1976-10-22
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Legal Events
Date
Code
Title
Description
1976-05-26
PS
Patent sealed
1981-07-08
PCNP
Patent ceased through non-payment of renewal fee
