US3859617A - Turnable, contactless variable resistor - Google Patents
Turnable, contactless variable resistor Download PDFInfo
- Publication number
- US3859617A US3859617A US399150A US39915073A US3859617A US 3859617 A US3859617 A US 3859617A US 399150 A US399150 A US 399150A US 39915073 A US39915073 A US 39915073A US 3859617 A US3859617 A US 3859617A
- Authority
- US
- United States
- Prior art keywords
- supporting plate
- opening
- disk
- variable resistor
- light source
- 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 - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 5
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/161—Semiconductor device sensitive to radiation without a potential-jump or surface barrier, e.g. photoresistors
- H01L31/164—Optical potentiometers
Definitions
- ABSTRACT A turnable, contactless variable resistor is provided consisting of a light source and a photoconductive cell, capable of operation without producing noise and wear as distinguished from conventional turnable variable resistors having mechanical contact.
- This invention relates to a turnable, contactless variable resistor, particularly one having a photoconductive cell disposed opposite the light source, and being provided with a disk having a slit or an opening for varying the amount of light from the source to the pho toconductive cell.
- a variable resistor has a horse shoe shaped resistance body on which a contact slide is provided; consequently, the life of the resistance body is shortened due to wear by the sliding of the contact on the resistance body.
- a light source and a photoconductive cell are disposed facing each other, and therebetween is placed a disk having a large comma like opening which controls the amount of light from the light source to the photoconductive cell.
- the object of this invention is to provide a turnable, contactless variable resistor having a configuration similar to that of a conventional variable resistor.
- Another object of this invention is to provide a turnable, contactless variable resistor which does not generate any noise as does the conventional variable resistor.
- Still another object of this invention is to provide a turnable, contactless variable resistor which does not deteriorate due to wear in the course of operation in a manner similar to that of a conventional variable resistor.
- FIG. 1 is the a cross sectional view of the embodiment of this invention.
- FIG. 2 is a perspective view of the embodiment of this invention.
- FIG. 3 is a plan view of the turnable disk of the embodiment of this invention.
- FIG. 4 is another embodiment of this invention.
- disk 2 having a rotating shaft 1 on one side of the disk is disposed between an upper supporting plate 3 and a lower supporting plate 4.
- On the disk is provided a large comma-shaped opening whose center line is equi-distant from the center of the disk and whose width measured radially varies with the angular position of the disk in accordance with the desired output characteristic of the device.
- the center line of the opening is also between the centers of holes 6 and 8 on the upper supporting plate 3 and on the lower supporting plate 4.
- the light source 7 is placed on the hole 6 on the upper supporting plate.
- the leakage of light from the light source is prevented by sealing the contact between the light source 7 and the upper supporting plate by means of like material resin like material (not shown).
- the photoconductive cell 9 of CdS or CdSe or the like is placed beneath the hole 8 on the lower supporting disk. To prevent light leakage from the contact of the photoconductive cell and the lower supporting plate, the contact is sealed with a resinlike material (not shown).
- the two supporting plates are also sealed and made as one body.
- this turnable contactless variable resistor can be used as a variable resistor.
- FIG. 4 is shown another embodiment of this invention.
- On the upper supporting plate are disposed two holes 6 and 10. Beneath the hole 10 is another hole 11 on the lower supporting plate.
- On the upper hole 10 is placed another light source 12 and beneath the hole 11 on the lower supporting plate is another photoconductive cell 13. The contacts between them are sealed as in the first embodiment (Seal is not shown). With the turn of the shaft, the resistances of two photoconductive cells can be varied.
- this embodiment has the configuration of two contactless variable resistors.
- a turntable, contactless variable resistor comprismg:
- an opaque disk having a shaft that is rotatable about a given axis
- an opaque lower supporting plate having an opening therethrough for transmitting light from the light source disposed coaxially with the hole on said upper supporting plate;
- said disk having an opening disposed between said upper and lower supporting plates at a radial position corresponding to the radial position of the openings in said supporting plates said supporting plates being joined as one body with said one side on the outside of said body, and the conducting resistance of said photoconductive cell varying by means of a changing amount of light passing through the openings by turning said rotatable shaft.
- a turnable, contactless variable resistor as defined in claim 1 wherein, a photoconductive cell is attached on the opening of said upper supporting plate and a light source on the opening of said lower supporting plate.
- a turntable, contactless variable resistor as defined in claim 1 wherein:
- the lower supporting plate has a second opening lotoconductive cells may be varied at the same time cated coaxially with said corresponding opening on in response to rotation of the shaft. said upper supporting plate; and 5.
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Adjustable Resistors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1972112689U JPS4967929U (de) | 1972-09-26 | 1972-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3859617A true US3859617A (en) | 1975-01-07 |
Family
ID=14593005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US399150A Expired - Lifetime US3859617A (en) | 1972-09-26 | 1973-09-20 | Turnable, contactless variable resistor |
Country Status (3)
Country | Link |
---|---|
US (1) | US3859617A (de) |
JP (1) | JPS4967929U (de) |
CA (1) | CA1009325A (de) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4227079A (en) * | 1978-12-15 | 1980-10-07 | Hewlett-Packard Company | Multipath fine positioning beam director |
US4271354A (en) * | 1979-08-09 | 1981-06-02 | Shs Research Labs, Inc. | Manual belt electro-optical control |
US4284885A (en) * | 1978-05-26 | 1981-08-18 | Honeywell Inc. | Optical potentiometer |
US4459523A (en) * | 1983-03-11 | 1984-07-10 | Tipper Tie, Inc. | Motor speed control |
US4796000A (en) * | 1986-04-28 | 1989-01-03 | David N. Friedland | Optical potentiometer |
US4859845A (en) * | 1986-04-15 | 1989-08-22 | Fanuc Ltd. | Optical rotary encoder with sub-code patterns |
US4917360A (en) * | 1986-08-29 | 1990-04-17 | Kabushiki Kaisha Kito | Operating device for electric chain block |
US5049827A (en) * | 1990-01-12 | 1991-09-17 | Jet Electronics & Technology Inc. | Non-contacting potentiometer |
US5343186A (en) * | 1993-04-29 | 1994-08-30 | Sony Electronics Inc. | Variable resistor having the capacity to produce a fader start signal output |
US5376785A (en) * | 1992-10-02 | 1994-12-27 | Chin; Philip K. | Optical displacement sensor utilizing optical diffusion |
US5572039A (en) * | 1992-02-29 | 1996-11-05 | Rolls-Royce Power Engineering Plc | Method and apparatus for observing a gap |
US5611731A (en) * | 1995-09-08 | 1997-03-18 | Thrustmaster, Inc. | Video pinball machine controller having an optical accelerometer for detecting slide and tilt |
US6015970A (en) * | 1997-12-11 | 2000-01-18 | Motorola, Inc. | Switch assembly incorporating optical control function |
US6617958B1 (en) * | 2002-04-24 | 2003-09-09 | Taiwan Alpha Electronic Co., Ltd. | Optical potentiometer |
US20050133696A1 (en) * | 2003-12-18 | 2005-06-23 | Orrico Mario M. | Non-contact rotary and linear sensor devices |
US20060266939A1 (en) * | 2005-05-26 | 2006-11-30 | Denso Corporation | Optical sensor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5645157Y2 (de) * | 1976-12-24 | 1981-10-22 | ||
JPS5645158Y2 (de) * | 1976-12-24 | 1981-10-22 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102227A (en) * | 1957-03-09 | 1963-08-27 | Philips Corp | Arrangement for deriving an adjustable partial voltage from an electric signal voltage |
US3171034A (en) * | 1961-12-21 | 1965-02-23 | Tomasulo Walter | Electro-optical control |
US3358150A (en) * | 1964-11-27 | 1967-12-12 | Steven E Summer | Photoelectric potentiometer with translucent shaft light valve |
-
1972
- 1972-09-26 JP JP1972112689U patent/JPS4967929U/ja active Pending
-
1973
- 1973-09-20 US US399150A patent/US3859617A/en not_active Expired - Lifetime
- 1973-09-20 CA CA181,487A patent/CA1009325A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3102227A (en) * | 1957-03-09 | 1963-08-27 | Philips Corp | Arrangement for deriving an adjustable partial voltage from an electric signal voltage |
US3171034A (en) * | 1961-12-21 | 1965-02-23 | Tomasulo Walter | Electro-optical control |
US3358150A (en) * | 1964-11-27 | 1967-12-12 | Steven E Summer | Photoelectric potentiometer with translucent shaft light valve |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284885A (en) * | 1978-05-26 | 1981-08-18 | Honeywell Inc. | Optical potentiometer |
US4227079A (en) * | 1978-12-15 | 1980-10-07 | Hewlett-Packard Company | Multipath fine positioning beam director |
US4271354A (en) * | 1979-08-09 | 1981-06-02 | Shs Research Labs, Inc. | Manual belt electro-optical control |
US4459523A (en) * | 1983-03-11 | 1984-07-10 | Tipper Tie, Inc. | Motor speed control |
US4859845A (en) * | 1986-04-15 | 1989-08-22 | Fanuc Ltd. | Optical rotary encoder with sub-code patterns |
US4796000A (en) * | 1986-04-28 | 1989-01-03 | David N. Friedland | Optical potentiometer |
US4917360A (en) * | 1986-08-29 | 1990-04-17 | Kabushiki Kaisha Kito | Operating device for electric chain block |
US5049827A (en) * | 1990-01-12 | 1991-09-17 | Jet Electronics & Technology Inc. | Non-contacting potentiometer |
US5572039A (en) * | 1992-02-29 | 1996-11-05 | Rolls-Royce Power Engineering Plc | Method and apparatus for observing a gap |
US5376785A (en) * | 1992-10-02 | 1994-12-27 | Chin; Philip K. | Optical displacement sensor utilizing optical diffusion |
US5343186A (en) * | 1993-04-29 | 1994-08-30 | Sony Electronics Inc. | Variable resistor having the capacity to produce a fader start signal output |
US5611731A (en) * | 1995-09-08 | 1997-03-18 | Thrustmaster, Inc. | Video pinball machine controller having an optical accelerometer for detecting slide and tilt |
US6015970A (en) * | 1997-12-11 | 2000-01-18 | Motorola, Inc. | Switch assembly incorporating optical control function |
US6617958B1 (en) * | 2002-04-24 | 2003-09-09 | Taiwan Alpha Electronic Co., Ltd. | Optical potentiometer |
US20050133696A1 (en) * | 2003-12-18 | 2005-06-23 | Orrico Mario M. | Non-contact rotary and linear sensor devices |
US6974949B2 (en) | 2003-12-18 | 2005-12-13 | Illinois Tool Works Inc. | Position sensor with an optical member of varying thickness |
US20060266939A1 (en) * | 2005-05-26 | 2006-11-30 | Denso Corporation | Optical sensor |
US7402792B2 (en) * | 2005-05-26 | 2008-07-22 | Denso Corporation | Optical sensor with rotary shaft-driven light intercepting member |
CN100425951C (zh) * | 2005-05-26 | 2008-10-15 | 株式会社电装 | 光学传感器 |
KR100873422B1 (ko) * | 2005-05-26 | 2008-12-11 | 가부시키가이샤 덴소 | 광센서 |
Also Published As
Publication number | Publication date |
---|---|
CA1009325A (en) | 1977-04-26 |
JPS4967929U (de) | 1974-06-13 |
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