US3876877A - Adjusting device - Google Patents

Adjusting device Download PDF

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Publication number
US3876877A
US3876877A US388341A US38834173A US3876877A US 3876877 A US3876877 A US 3876877A US 388341 A US388341 A US 388341A US 38834173 A US38834173 A US 38834173A US 3876877 A US3876877 A US 3876877A
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United States
Prior art keywords
filament
envelope
cap
screen
strip
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Expired - Lifetime
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US388341A
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Petrus Johannes Wi Meulensteen
Henricus Theophile Pet Lakeman
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US Philips Corp
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US Philips Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/16—Joining of caps to vessel
    • H01K3/18—Machines therefor
    • 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
    • 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
    • G01B11/272—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 using photoelectric detection means

Definitions

  • the invention relates to a device for the relative adjustment of an envelope and a cap of a filament lamp 7211841 by means of an optical system with which a reproduction of the fi Aug. 31, 1972 Netherlands................. «
  • the optical system comprises a number of bundles of light con- .9 R 2 2 2 0 5 2 L C SH U n 5 .1
  • ductors which with their one end communicate with m7 2 32 8 5 H Q l3 2 2 %2 2 GB .9% M2 e mm Mh Gm a e S f 0 M .w F l .o o
  • the invention relates to a device for the relative adjustment ofenvelope and cap of filament lamps before said cap and envelope are secured together, said device comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells which are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable.
  • a device for the relative adjustment ofenvelope and cap of filament lamps before said cap and envelope are secured together, said device comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells which are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable.
  • the reproduction of the filament projected on the photoelectric cells should be so sharp that the photoeletric cells are activated onlyby said reproduction.
  • the wall parts of said photoelectric cells through which the light enters the photoelectric cell will have to be so large that in two juxtaposed photo electric cells a very small region is formed between the relevant wall parts which is insensitive to light signals. Photoelectric cells which satisfy said requirements are not available in trade.
  • the device is characterized in that a number-of bundles of light conductors are present which each communicate with their one end with a photoelectric cell, the oppositely located ends of the bundles debouching beside each other into a screen on which the filament is reproduced.
  • the light impinging on the said screen is guided to the wall parts of the photoelectric cells which are sensitive to light signals.
  • a favorable embodiment of the device according to the invention is characterized in that each bundle, at the area where it debouches into the screen, has a striplike cross-section, the length direction of each strip extending at least approximately parallel to the line which joins the centres of the envelope and the cap.
  • the reason for said strip-like subdivision of the screen is the following.
  • the envelope of most filament lamps, of which the filament should occupy an accurate position relative to the lamp cap, shows a rotationally symmetric shape, the axis of symmetry lying in the plane in which the filament extends. In a mechanized manufacture of the filament lamp it has been found difficult in practice to each time clamp and the envelope in the holder in such manner that the plane in which the filament extends each time occupies the same position relative to the screen.
  • FIG. 1 shows diagrammatically an embodiment of the device according to the invention
  • FIG. 2 and FIG. 3 show the shape and arrangement of the bundles of light conductors respectively in sectional views taken through a horizontal plane and a vertical plane.
  • the cap 1 and envelope 2 to be adjusted relative to each other are each clamped in holders 3 and 4, respectively.
  • the filament 5 is stretched inside the envelope 2 of a transparent material and shows an approximately U-shape.
  • the holder 3 is rigidly secured whereas the holder 4 is movable.
  • the device furthermore comprises two optical systems which are denoted by 6 and 7 and the optical axes of which encloses an angle of approximately
  • the filament is reproduced on screens 10 and 11, respectively, with each optical system constituted by a light source 8 and a lens 9.
  • Each screen is formed on the front of a body 12 and 13 which is normally made ofa synthetic material in which bundles of light conductors 14 are embedded.
  • Each bundle 14 communicates on the rear side of the body in which it is embedded with a photoelectric cell 15.
  • Each photoelectric cell is electrically connected to a control mechanism not shown by means of which the movement of the holder 4 and hence also of the envelope 5 is controlled.
  • each bundle of light conductors at the area of the screen 10 or 11 has a strip-like shape 18 and at the area of the rear side of the synthetic body a shape which corresponds to the shape of the light inlet aperture of the photoelectric cell 15.
  • both parts are secured together, for example, by means of cement.
  • the diameter of the filament is 148 [L and the diameter of the envelope is l lmms.
  • a device for the relative adjustment of envelope and cap of filament lamps before said cap and envelope are secured together comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable, wherein a number of bundles of elongated light conductors each of which communicate with at one end with a photoelectric cell, the oppositely located ends of the conductors debouching beside each other into a screen on which the filament is reproduced, each conerally right angles thereto.

Abstract

The invention relates to a device for the relative adjustment of an envelope and a cap of a filament lamp by means of an optical system with which a reproduction of the filament of the lamp is projected on photoelectric cells. According to the invention the optical system comprises a number of bundles of light conductors which with their one end communicate with the photoelectric cells and with their other end debouch into a screen on which the filament is reproduced.

Description

[ Apr. 8, 1975 1 1 ADJUSTING DEVICE 3365.699 1/1968 Foster................t......... 3,436,555 4/1969 x 37 22 an O0 55 22 Foster 12/1969 Cronin....
Inventors: Petrus Johannes Wilhelmus 3,483,389 3.535.537 /1970 Powell Primary E.\'aminerJames W. Lawrence Assistant Examiner-T. N. Grigsby [73] Asslgneel f Corporation New Attorney, Agent, or FirmFrank R. Trifari [22] Filed: Aug. 15, 1973 ABSTRACT 211 Appl. No.: 388,341
[] Foreign Application Priority Data The invention relates to a device for the relative adjustment of an envelope and a cap of a filament lamp 7211841 by means of an optical system with which a reproduction of the fi Aug. 31, 1972 Netherlands.......................
lament of the lamp is projected on photoelectric cells. According to the invention the optical system comprises a number of bundles of light con- .9 R 2 2 2 0 5 2 L C SH U n 5 .1
Int. Cl.
ductors which with their one end communicate with m7 2 32 8 5 H Q l3 2 2 %2 2 GB .9% M2 e mm Mh Gm a e S f 0 M .w F l .o o
the photoelectric cells and with their other end de- 250/223 B bouch into a screen on which the filament is reproduced.
2 Claims, 3 Drawing Figures 2.315.287 Holloway........................ 250/223X ADJUSTING DEVICE The invention relates to a device for the relative adjustment ofenvelope and cap of filament lamps before said cap and envelope are secured together, said device comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells which are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable. Such a device is known.
Until now, said known device could not be used for adjusting envelope and cap of very small filament lamps, so-called miniature filament lamps. This may be explained as follows.
The reproduction of the filament projected on the photoelectric cells should be so sharp that the photoeletric cells are activated onlyby said reproduction. In the case of a dim reproduction of the filament and the use of photoelectric cells which are sensitive to said dim reproduction, the danger actually exists that as a result of impurities which occur in the envelope material and which, of course, are also reproduced, the photoelectric cells are also activated which results in a defective adjustment by the control mechanism.
It generally holds that according as the reproduction is smaller it will also be sharper. In aligning miniature lamps the filament of which has a diameter of between 100 u and 300 ,u, the reproduction to obtain the required definition will therefore have to be very small. However, the photoelectric cells which record and possibly correct the position of the filament with reference to said small reproduction will also have to be very small.
Moreover, the wall parts of said photoelectric cells through which the light enters the photoelectric cell will have to be so large that in two juxtaposed photo electric cells a very small region is formed between the relevant wall parts which is insensitive to light signals. Photoelectric cells which satisfy said requirements are not available in trade.
It is the object of the invention to provide a device with which it is possible to adjust the envelope and cap of a very small filament lamp relative to each other.
For that purpose, the device is characterized in that a number-of bundles of light conductors are present which each communicate with their one end with a photoelectric cell, the oppositely located ends of the bundles debouching beside each other into a screen on which the filament is reproduced.
By means of the light conductors, the light impinging on the said screen is guided to the wall parts of the photoelectric cells which are sensitive to light signals.
A favorable embodiment of the device according to the invention is characterized in that each bundle, at the area where it debouches into the screen, has a striplike cross-section, the length direction of each strip extending at least approximately parallel to the line which joins the centres of the envelope and the cap. The reason for said strip-like subdivision of the screen is the following. The envelope of most filament lamps, of which the filament should occupy an accurate position relative to the lamp cap, shows a rotationally symmetric shape, the axis of symmetry lying in the plane in which the filament extends. In a mechanized manufacture of the filament lamp it has been found difficult in practice to each time clamp and the envelope in the holder in such manner that the plane in which the filament extends each time occupies the same position relative to the screen. So it may occur that upon aligning a series of lamps having a filament which has the shape of a U, a U-shaped reproduction is projected on the screen in one case, whereas in the other case the reproduction of the filament is in the form of a line. In this latter case, however, at least one photoelectric cell should always be activated by the reproduction. To enable this, the form and the position of each strip is adapted to the shape and position of said strip-like reproduction. Therefore, dimensions of the width of each strip should preferably be equal to or smaller than the diameter of the filament. As a result of this it is achieved that of at least one strip at least half of the strip surface is covered by the reproduction of the filament. ls has proved in practice that this is sufficient to activate the associated photoelectric cell.
The invention will be described in greater detail with reference to the drawing, in which FIG. 1 shows diagrammatically an embodiment of the device according to the invention and FIG. 2 and FIG. 3 show the shape and arrangement of the bundles of light conductors respectively in sectional views taken through a horizontal plane and a vertical plane.
As shown in FIG. 1, the cap 1 and envelope 2 to be adjusted relative to each other are each clamped in holders 3 and 4, respectively. The filament 5 is stretched inside the envelope 2 of a transparent material and shows an approximately U-shape. In this embodiment the holder 3 is rigidly secured whereas the holder 4 is movable. The device furthermore comprises two optical systems which are denoted by 6 and 7 and the optical axes of which encloses an angle of approximately The filament is reproduced on screens 10 and 11, respectively, with each optical system constituted by a light source 8 and a lens 9. Each screen is formed on the front of a body 12 and 13 which is normally made ofa synthetic material in which bundles of light conductors 14 are embedded. Each bundle 14 communicates on the rear side of the body in which it is embedded with a photoelectric cell 15. Each photoelectric cell is electrically connected to a control mechanism not shown by means of which the movement of the holder 4 and hence also of the envelope 5 is controlled.
As shown in FIG. 2, the cross-section of each bundle of light conductors at the area of the screen 10 or 11 has a strip-like shape 18 and at the area of the rear side of the synthetic body a shape which corresponds to the shape of the light inlet aperture of the photoelectric cell 15.
In the position of the filament 5 shown in FIG. 1, said filament is reproduced on the screen 11 as a U-shaped shadow 16, while the reproduction on the screen 11 is in the form of a line (17). The width of the strips 18 is equal to the diameter of the filament 5 so that the reproduction 17 covers at least half of a strip. As a result of this, signalling of the reproduction by at least one photoelectric cell is ensured.
When the envelope is aligned relative to the cap, both parts are secured together, for example, by means of cement.
In the embodiment shown the diameter of the filament is 148 [L and the diameter of the envelope is l lmms.
What is claimed is:
l. A device for the relative adjustment of envelope and cap of filament lamps before said cap and envelope are secured together, said device comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable, wherein a number of bundles of elongated light conductors each of which communicate with at one end with a photoelectric cell, the oppositely located ends of the conductors debouching beside each other into a screen on which the filament is reproduced, each conerally right angles thereto.

Claims (2)

1. A device for the relative adjustment of envelope and cap of filament lamps before said cap and envelope are secured together, said device comprising at least one optical system by means of which the filament arranged inside the envelope is reproduced on a number of photoelectric cells are connected electrically to a control mechanism by means of which holders for cap and envelope present in the device are movable, wherein a number of bundles of elongated light conductors each of which communicate with at one end with a photoelectric cell, the oppositely located ends of the conductors debouching beside each other into a screen on which the filament is reproduced, each conductor at the area where it debouches into the screen has an elongated strip-shaped crosssection, the direction of elongation of each strip extending approximately parallel to the line which joins the centers of the envelope and the cap, the width of each strip is no greater than the diameter of the associated filament.
2. A device as in claim 1 further including a second array comprising a separate optical system, number of photoelectric cells, and elongated light conductors disposed in the same relation as the first array and at generally right angles thereto.
US388341A 1972-08-31 1973-08-15 Adjusting device Expired - Lifetime US3876877A (en)

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Application Number Priority Date Filing Date Title
NL7211841A NL7211841A (en) 1972-08-31 1972-08-31

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JP (1) JPS5822859B2 (en)
CA (1) CA983092A (en)
DE (1) DE2340798C2 (en)
FR (1) FR2198262B3 (en)
GB (1) GB1444605A (en)
NL (1) NL7211841A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757913A (en) * 1972-06-08 1973-09-11 G M Co Brake actuated throttle closure system
US4272189A (en) * 1979-08-16 1981-06-09 The United States Of America As Represented By The Secretary Of The Navy Electro-optical projectile analyzer
US4350513A (en) * 1981-11-23 1982-09-21 Western Electric Company, Inc. Method and apparatus for extruding glass tubes
US4390897A (en) * 1981-04-17 1983-06-28 Western Electric Company, Inc. Technique for automatically centering a lightguide fiber in a coating
US4615093A (en) * 1983-11-05 1986-10-07 Zevatech Ag Method and an apparatus for the positioning of components with reference to a workpiece
EP0314921A2 (en) * 1987-10-07 1989-05-10 DI-SORIC INDUSTRIE-ELECTRONIC GMBH & CO Apparatus for the determination of mass flow
EP0316048A2 (en) * 1987-11-12 1989-05-17 Unilever N.V. Measuring apparatus
US4936683A (en) * 1989-06-22 1990-06-26 Summagraphics Corporation Optical tablet construction
US5384956A (en) * 1992-07-01 1995-01-31 Yamaha Hatsudoki Kabushiki Kaisha Method for mounting components
US5566447A (en) * 1993-12-27 1996-10-22 Yamaha Hatsudoki Kabushiki Kaisha Pick-up point correction device for mounter
US5608642A (en) * 1993-12-29 1997-03-04 Yamaha Hatsudoki Kabushiki Kaisha Component recognition method and device
US5619328A (en) * 1993-12-27 1997-04-08 Yamaha Hatsudoki Kabushiki Kaisha Component mounter and recognition method
US5768759A (en) * 1996-11-19 1998-06-23 Zevatech, Inc. Method and apparatus for reflective in-flight component registration
USRE38025E1 (en) 1991-02-22 2003-03-11 Cyberoptics Corporation High precision component alignment sensor system
US20060225860A1 (en) * 2003-09-30 2006-10-12 Shin-Etsu Chemical Co., Ltd. Method of elongating an optical fiber base material
US7746481B2 (en) 2007-03-20 2010-06-29 Cyberoptics Corporation Method for measuring center of rotation of a nozzle of a pick and place machine using a collimated laser beam
US8068664B2 (en) 2007-06-05 2011-11-29 Cyberoptics Corporation Component sensor for pick and place machine using improved shadow imaging

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255754A (en) * 1979-03-19 1981-03-10 Xerox Corporation Differential fiber optic sensing method and apparatus for ink jet recorders
CA1281766C (en) * 1985-12-19 1991-03-19 Martin E. Muzeroll Method and apparatus for position orientation of a metal halide lamp base assembly

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US2315287A (en) * 1940-11-30 1943-03-30 Westinghouse Electric & Mfg Co Testing machine
US3365699A (en) * 1962-07-20 1968-01-23 North Atlantic Res Products Lt Apparatus for the automatic dimensional inspection of an object
US3436555A (en) * 1964-08-24 1969-04-01 North Atlantic Research Produc Ovality measurement apparatus comprising two photoelectric gauging systems having an angle between their optical axes of the order of 70
US3483389A (en) * 1968-01-23 1969-12-09 Dynamics Res Corp Electro-optical encoder having fiber optic coupling
US3535537A (en) * 1968-04-09 1970-10-20 Us Navy Optical line splitter having light conducting strips with fused input end and flared output ends

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DE429631C (en) * 1924-02-18 1926-05-31 Antoine Jean Baptiste Marsat Device for correct setting of the filament of an electric light bulb for projectors u. like
US2154500A (en) * 1937-06-21 1939-04-18 Gen Electric Apparatus for prefocusing lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315287A (en) * 1940-11-30 1943-03-30 Westinghouse Electric & Mfg Co Testing machine
US3365699A (en) * 1962-07-20 1968-01-23 North Atlantic Res Products Lt Apparatus for the automatic dimensional inspection of an object
US3436555A (en) * 1964-08-24 1969-04-01 North Atlantic Research Produc Ovality measurement apparatus comprising two photoelectric gauging systems having an angle between their optical axes of the order of 70
US3483389A (en) * 1968-01-23 1969-12-09 Dynamics Res Corp Electro-optical encoder having fiber optic coupling
US3535537A (en) * 1968-04-09 1970-10-20 Us Navy Optical line splitter having light conducting strips with fused input end and flared output ends

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757913A (en) * 1972-06-08 1973-09-11 G M Co Brake actuated throttle closure system
US4272189A (en) * 1979-08-16 1981-06-09 The United States Of America As Represented By The Secretary Of The Navy Electro-optical projectile analyzer
US4390897A (en) * 1981-04-17 1983-06-28 Western Electric Company, Inc. Technique for automatically centering a lightguide fiber in a coating
US4350513A (en) * 1981-11-23 1982-09-21 Western Electric Company, Inc. Method and apparatus for extruding glass tubes
US4615093A (en) * 1983-11-05 1986-10-07 Zevatech Ag Method and an apparatus for the positioning of components with reference to a workpiece
EP0314921A3 (en) * 1987-10-07 1991-01-23 DI-SORIC INDUSTRIE-ELECTRONIC GMBH & CO Apparatus for the determination of mass flow
EP0314921A2 (en) * 1987-10-07 1989-05-10 DI-SORIC INDUSTRIE-ELECTRONIC GMBH & CO Apparatus for the determination of mass flow
EP0316048A3 (en) * 1987-11-12 1991-02-13 Unilever N.V. Measuring apparatus
EP0316048A2 (en) * 1987-11-12 1989-05-17 Unilever N.V. Measuring apparatus
WO1990015966A1 (en) * 1989-06-22 1990-12-27 Summagraphics Corporation Optical tablet construction
US4936683A (en) * 1989-06-22 1990-06-26 Summagraphics Corporation Optical tablet construction
USRE38025E1 (en) 1991-02-22 2003-03-11 Cyberoptics Corporation High precision component alignment sensor system
US5384956A (en) * 1992-07-01 1995-01-31 Yamaha Hatsudoki Kabushiki Kaisha Method for mounting components
US5619328A (en) * 1993-12-27 1997-04-08 Yamaha Hatsudoki Kabushiki Kaisha Component mounter and recognition method
US5566447A (en) * 1993-12-27 1996-10-22 Yamaha Hatsudoki Kabushiki Kaisha Pick-up point correction device for mounter
US5608642A (en) * 1993-12-29 1997-03-04 Yamaha Hatsudoki Kabushiki Kaisha Component recognition method and device
US5768759A (en) * 1996-11-19 1998-06-23 Zevatech, Inc. Method and apparatus for reflective in-flight component registration
US20060225860A1 (en) * 2003-09-30 2006-10-12 Shin-Etsu Chemical Co., Ltd. Method of elongating an optical fiber base material
US7788951B2 (en) * 2003-09-30 2010-09-07 Shin-Etsu Chemical Co., Ltd. Method of elongating an optical fiber base material
US7746481B2 (en) 2007-03-20 2010-06-29 Cyberoptics Corporation Method for measuring center of rotation of a nozzle of a pick and place machine using a collimated laser beam
US8068664B2 (en) 2007-06-05 2011-11-29 Cyberoptics Corporation Component sensor for pick and place machine using improved shadow imaging

Also Published As

Publication number Publication date
CA983092A (en) 1976-02-03
NL7211841A (en) 1974-03-04
GB1444605A (en) 1976-08-04
JPS5822859B2 (en) 1983-05-11
FR2198262B3 (en) 1976-07-30
JPS4965082A (en) 1974-06-24
FR2198262A1 (en) 1974-03-29
DE2340798C2 (en) 1983-02-03
DE2340798A1 (en) 1974-03-14

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