DE9104172U1 - - Google Patents
Info
- Publication number
- DE9104172U1 DE9104172U1 DE9104172U DE9104172U DE9104172U1 DE 9104172 U1 DE9104172 U1 DE 9104172U1 DE 9104172 U DE9104172 U DE 9104172U DE 9104172 U DE9104172 U DE 9104172U DE 9104172 U1 DE9104172 U1 DE 9104172U1
- Authority
- DE
- Germany
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
-
- 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
- G08B13/184—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 using radiation reflectors
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9104172U DE9104172U1 (de) | 1991-04-06 | 1991-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9104172U DE9104172U1 (de) | 1991-04-06 | 1991-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9104172U1 true DE9104172U1 (de) | 1991-07-18 |
Family
ID=6866026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9104172U Expired - Lifetime DE9104172U1 (de) | 1991-04-06 | 1991-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9104172U1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0650078A1 (de) * | 1993-10-21 | 1995-04-26 | 3D Ltd. | Reflektierendes Gerät und Herstellungsverfahren |
| DE19828434A1 (de) * | 1998-06-25 | 1999-12-30 | Sick Ag | Optoelektronische Sensoreinrichtung |
| DE19937353A1 (de) * | 1999-08-11 | 2001-02-15 | Imos Gubela Gmbh | Lichtschrankenanordnung |
| DE202010007107U1 (de) * | 2010-05-21 | 2011-11-09 | Sick Ag | Aufweitungsreflektor |
| EP0875873B2 (de) † | 1997-04-30 | 2012-12-12 | Sick Ag | Opto-elektronischer Sensor |
-
1991
- 1991-04-06 DE DE9104172U patent/DE9104172U1/de not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0650078A1 (de) * | 1993-10-21 | 1995-04-26 | 3D Ltd. | Reflektierendes Gerät und Herstellungsverfahren |
| EP0875873B2 (de) † | 1997-04-30 | 2012-12-12 | Sick Ag | Opto-elektronischer Sensor |
| DE19828434A1 (de) * | 1998-06-25 | 1999-12-30 | Sick Ag | Optoelektronische Sensoreinrichtung |
| DE19937353A1 (de) * | 1999-08-11 | 2001-02-15 | Imos Gubela Gmbh | Lichtschrankenanordnung |
| DE202010007107U1 (de) * | 2010-05-21 | 2011-11-09 | Sick Ag | Aufweitungsreflektor |