JPS554690A - Optical curtain device - Google Patents
Optical curtain deviceInfo
- Publication number
- JPS554690A JPS554690A JP4409979A JP4409979A JPS554690A JP S554690 A JPS554690 A JP S554690A JP 4409979 A JP4409979 A JP 4409979A JP 4409979 A JP4409979 A JP 4409979A JP S554690 A JPS554690 A JP S554690A
- Authority
- JP
- Japan
- Prior art keywords
- curtain device
- optical curtain
- optical
- curtain
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Electronic Switches (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7803985A SE418426B (en) | 1978-04-10 | 1978-04-10 | Light Curtain |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554690A true JPS554690A (en) | 1980-01-14 |
Family
ID=20334543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4409979A Pending JPS554690A (en) | 1978-04-10 | 1979-04-10 | Optical curtain device |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS554690A (en) |
DE (1) | DE2914329A1 (en) |
DK (1) | DK149979A (en) |
GB (1) | GB2023282B (en) |
NO (1) | NO791203L (en) |
SE (1) | SE418426B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154379A (en) * | 1982-03-05 | 1983-09-13 | Bunka Shutter Kk | Limit regulator for shutter |
JPS60226499A (en) * | 1984-04-24 | 1985-11-11 | Seiko Epson Corp | Synthesis of ruby single crystal |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2504709A1 (en) * | 1981-04-28 | 1982-10-29 | Alsthom Cgee | Infrared intruder alarm system - uses pulsed 10 to 100 kilohertz high frequency modulated signal transmitted using IR LED |
US4559452A (en) * | 1982-06-02 | 1985-12-17 | Fujitsu Limited | Apparatus for detecting edge of semitransparent plane substance |
DE3237606A1 (en) * | 1982-10-11 | 1984-04-12 | Löbel, Monika, 4330 Mülheim | Electronic level switch with self-protecting control unit |
SE456952B (en) * | 1982-12-16 | 1988-11-14 | Innovationsteknik Inst Ab | MICRODATOR CONTROL LIGHT RIDAA |
GB2133537B (en) * | 1982-12-16 | 1986-07-09 | Glyben Automation Limited | Position detector system |
GB2177503A (en) * | 1985-06-12 | 1987-01-21 | John Peter Hughes | Guard system |
CH668872A5 (en) * | 1985-07-05 | 1989-01-31 | Baumer Electric Ag | PROXIMITY SWITCH. |
DE3803033A1 (en) * | 1988-02-02 | 1989-08-10 | Sick Erwin Gmbh | LIGHT BARRIER GRID |
WO1990008333A1 (en) * | 1988-11-04 | 1990-07-26 | Mats Linger | Safety guard beam light switch |
GB2227309A (en) * | 1989-01-18 | 1990-07-25 | Formula Systems Ltd | Detection system |
DE3939191C3 (en) * | 1989-11-27 | 1996-02-08 | Lumiflex Gmbh & Co Kg Elektron | Multi-beam through-beam sensor |
US5015840B1 (en) * | 1990-01-09 | 1995-04-11 | Scient Technologies Inc | Self-checking light curtain system and method of operation. |
DE69231311T2 (en) * | 1992-04-30 | 2001-02-15 | Reer S.P.A., Turin/Torino | Optoelectronic barrier |
US5577733A (en) * | 1994-04-08 | 1996-11-26 | Downing; Dennis L. | Targeting system |
JP3986162B2 (en) * | 1998-06-03 | 2007-10-03 | 株式会社キーエンス | Multi-optical axis photoelectric switch capable of detecting multiple projections |
DE19919253A1 (en) * | 1999-04-28 | 2000-11-02 | Zeiss Carl Fa | Optical collision protection for moving machine parts |
DE102006059370A1 (en) * | 2006-12-15 | 2008-06-26 | Sick Ag | light Curtain |
DE102007031430B4 (en) * | 2007-07-05 | 2016-12-01 | Sick Ag | Method for operating a light grid and light grid |
DE102010037681B4 (en) * | 2010-09-21 | 2018-12-27 | Sick Ag | Light grid and method for object measurement with a light grid |
CN112363238B (en) * | 2020-11-25 | 2022-09-06 | 上海长江电气设备集团有限公司 | Light curtain light beam alignment correction method, light curtain receiver, transmitter and storage medium |
EP4026973A1 (en) * | 2021-01-07 | 2022-07-13 | CAME S.p.A. | Control system for access point devices |
-
1978
- 1978-04-10 SE SE7803985A patent/SE418426B/en unknown
-
1979
- 1979-04-09 GB GB7912351A patent/GB2023282B/en not_active Expired
- 1979-04-09 DE DE19792914329 patent/DE2914329A1/en not_active Withdrawn
- 1979-04-10 JP JP4409979A patent/JPS554690A/en active Pending
- 1979-04-10 NO NO791203A patent/NO791203L/en unknown
- 1979-04-10 DK DK149979A patent/DK149979A/en not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154379A (en) * | 1982-03-05 | 1983-09-13 | Bunka Shutter Kk | Limit regulator for shutter |
JPH0419356B2 (en) * | 1982-03-05 | 1992-03-30 | Bunka Shutter | |
JPS60226499A (en) * | 1984-04-24 | 1985-11-11 | Seiko Epson Corp | Synthesis of ruby single crystal |
JPH0310599B2 (en) * | 1984-04-24 | 1991-02-14 | Seiko Epson Corp |
Also Published As
Publication number | Publication date |
---|---|
DK149979A (en) | 1979-10-11 |
NO791203L (en) | 1979-10-11 |
SE7803985L (en) | 1979-10-11 |
GB2023282B (en) | 1983-01-06 |
GB2023282A (en) | 1979-12-28 |
DE2914329A1 (en) | 1979-11-15 |
SE418426B (en) | 1981-05-25 |
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