CA879965A - Systeme de cellule photoelectrique - Google Patents
Systeme de cellule photoelectriqueInfo
- Publication number
- CA879965A CA879965A CA879965A CA56239A CA879965A CA 879965 A CA879965 A CA 879965A CA 879965 A CA879965 A CA 879965A CA 56239 A CA56239 A CA 56239A CA 879965 A CA879965 A CA 879965A
- Authority
- CA
- Canada
- Prior art keywords
- photoelectrique
- cellule
- systeme
- cellule photoelectrique
- 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
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
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
- G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA879965A CA879965A (en) | 1969-07-04 | 1969-07-04 | Systeme de cellule photoelectrique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA879965A CA879965A (en) | 1969-07-04 | 1969-07-04 | Systeme de cellule photoelectrique |
Publications (1)
Publication Number | Publication Date |
---|---|
CA879965A true CA879965A (en) | 1971-08-31 |
Family
ID=4085432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA879965A Expired CA879965A (en) | 1969-07-04 | 1969-07-04 | Systeme de cellule photoelectrique |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA879965A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2184896A1 (en) * | 1972-05-18 | 1973-12-28 | Sick Optik Elektronik Erwin |
-
1969
- 1969-07-04 CA CA879965A patent/CA879965A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2184896A1 (en) * | 1972-05-18 | 1973-12-28 | Sick Optik Elektronik Erwin |
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