FR2746190B1 - Barriere photoelectrique a rayons multiples - Google Patents
Barriere photoelectrique a rayons multiplesInfo
- Publication number
- FR2746190B1 FR2746190B1 FR9603091A FR9603091A FR2746190B1 FR 2746190 B1 FR2746190 B1 FR 2746190B1 FR 9603091 A FR9603091 A FR 9603091A FR 9603091 A FR9603091 A FR 9603091A FR 2746190 B1 FR2746190 B1 FR 2746190B1
- Authority
- FR
- France
- Prior art keywords
- photoelectric barrier
- ray photoelectric
- ray
- barrier
- photoelectric
- 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 - Fee Related
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9603091A FR2746190B1 (fr) | 1996-03-12 | 1996-03-12 | Barriere photoelectrique a rayons multiples |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9603091A FR2746190B1 (fr) | 1996-03-12 | 1996-03-12 | Barriere photoelectrique a rayons multiples |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2746190A1 FR2746190A1 (fr) | 1997-09-19 |
FR2746190B1 true FR2746190B1 (fr) | 1998-05-22 |
Family
ID=9490098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9603091A Expired - Fee Related FR2746190B1 (fr) | 1996-03-12 | 1996-03-12 | Barriere photoelectrique a rayons multiples |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2746190B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6046834A (en) * | 1996-03-08 | 2000-04-04 | Nihon Shingo Kabushiki Kaisha | Optical barrier |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1276513B (de) * | 1964-07-02 | 1968-08-29 | Dr Hans Richter | Lichtgitterschranke unter Verwendung von Rueckstrahlern |
US4467193A (en) * | 1981-09-14 | 1984-08-21 | Carroll Manufacturing Corporation | Parabolic light emitter and detector unit |
JPH0690900B2 (ja) * | 1988-11-14 | 1994-11-14 | 株式会社キーエンス | 多光軸光電スイッチ |
-
1996
- 1996-03-12 FR FR9603091A patent/FR2746190B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2746190A1 (fr) | 1997-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |