FR2329977A1 - Dispositif de detection de proximite et systeme comportant un tel dispositif - Google Patents
Dispositif de detection de proximite et systeme comportant un tel dispositifInfo
- Publication number
- FR2329977A1 FR2329977A1 FR7533462A FR7533462A FR2329977A1 FR 2329977 A1 FR2329977 A1 FR 2329977A1 FR 7533462 A FR7533462 A FR 7533462A FR 7533462 A FR7533462 A FR 7533462A FR 2329977 A1 FR2329977 A1 FR 2329977A1
- Authority
- FR
- France
- Prior art keywords
- field
- electro
- proximity detector
- optical system
- light beam
- 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.)
- Granted
Links
Classifications
-
- 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
- G08B13/187—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 interference of a radiation field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7533462A FR2329977A1 (fr) | 1975-10-31 | 1975-10-31 | Dispositif de detection de proximite et systeme comportant un tel dispositif |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7533462A FR2329977A1 (fr) | 1975-10-31 | 1975-10-31 | Dispositif de detection de proximite et systeme comportant un tel dispositif |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2329977A1 true FR2329977A1 (fr) | 1977-05-27 |
FR2329977B1 FR2329977B1 (fr) | 1980-04-11 |
Family
ID=9161912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7533462A Granted FR2329977A1 (fr) | 1975-10-31 | 1975-10-31 | Dispositif de detection de proximite et systeme comportant un tel dispositif |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2329977A1 (fr) |
-
1975
- 1975-10-31 FR FR7533462A patent/FR2329977A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2329977B1 (fr) | 1980-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |