GB2526994A - A detector unit with a reflector - Google Patents
A detector unit with a reflector Download PDFInfo
- Publication number
- GB2526994A GB2526994A GB1516897.4A GB201516897A GB2526994A GB 2526994 A GB2526994 A GB 2526994A GB 201516897 A GB201516897 A GB 201516897A GB 2526994 A GB2526994 A GB 2526994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- detector unit
- sensor
- reflective elements
- tilt
- 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
- 238000001514 detection method Methods 0.000 abstract 3
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0808—Convex mirrors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/07—Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0076—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a detector
- G02B19/008—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a detector adapted to collect light from a complete hemisphere or a plane extending 360 degrees around the detector
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with infrared radiation
-
- 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
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
Abstract
A detector unit for a lighting control system comprises a sensor and a reflector (1) arranged to reflect signals from a detection footprint (9) into the sensor. The reflector (1) comprises a multiplicity of reflective elements (5) arranged in a ring (15) coaxial with the sensor. At least some of the reflective elements (5) may be at differing angles of tilt, such that the detection footprint (9) is non-circular. The detector unit may be arranged such that the tilt of the reflective elements (5) is adjustable such that the shape of the detection footprint (9) may be adjusted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB201305490A GB201305490D0 (en) | 2013-03-26 | 2013-03-26 | A detector unit with a reflector |
PCT/GB2014/050934 WO2014155088A1 (en) | 2013-03-26 | 2014-03-25 | A detector unit with a reflector |
Publications (3)
Publication Number | Publication Date |
---|---|
GB201516897D0 GB201516897D0 (en) | 2015-11-11 |
GB2526994A true GB2526994A (en) | 2015-12-09 |
GB2526994B GB2526994B (en) | 2020-05-27 |
Family
ID=48326666
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB201305490A Ceased GB201305490D0 (en) | 2013-03-26 | 2013-03-26 | A detector unit with a reflector |
GB1516897.4A Active GB2526994B (en) | 2013-03-26 | 2014-03-25 | A detector unit with a reflector |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB201305490A Ceased GB201305490D0 (en) | 2013-03-26 | 2013-03-26 | A detector unit with a reflector |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB201305490D0 (en) |
WO (1) | WO2014155088A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9733127B2 (en) | 2016-01-19 | 2017-08-15 | Google Inc. | System and method for estimating size and location of moving objects |
US10605666B2 (en) | 2017-12-28 | 2020-03-31 | Ademco Inc. | Ceiling mount intrusion detector with PIR mirror with adjustable mount height |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972598A (en) * | 1974-09-09 | 1976-08-03 | Leco Corporation | Multifaceted mirror structure for infrared radiation detector |
US4606600A (en) * | 1984-01-03 | 1986-08-19 | Inovatronic Elektronische Systeme Gmbh | Passive infrared movement detector |
EP0303913A1 (en) * | 1987-08-11 | 1989-02-22 | Cerberus Ag | Intrusion detector |
US5089704A (en) * | 1990-10-18 | 1992-02-18 | C & K Systems, Inc. | Wide angle ceiling mounted passive infrared intrusion detection system |
-
2013
- 2013-03-26 GB GB201305490A patent/GB201305490D0/en not_active Ceased
-
2014
- 2014-03-25 GB GB1516897.4A patent/GB2526994B/en active Active
- 2014-03-25 WO PCT/GB2014/050934 patent/WO2014155088A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972598A (en) * | 1974-09-09 | 1976-08-03 | Leco Corporation | Multifaceted mirror structure for infrared radiation detector |
US4606600A (en) * | 1984-01-03 | 1986-08-19 | Inovatronic Elektronische Systeme Gmbh | Passive infrared movement detector |
EP0303913A1 (en) * | 1987-08-11 | 1989-02-22 | Cerberus Ag | Intrusion detector |
US5089704A (en) * | 1990-10-18 | 1992-02-18 | C & K Systems, Inc. | Wide angle ceiling mounted passive infrared intrusion detection system |
Also Published As
Publication number | Publication date |
---|---|
WO2014155088A1 (en) | 2014-10-02 |
GB201516897D0 (en) | 2015-11-11 |
GB201305490D0 (en) | 2013-05-08 |
GB2526994B (en) | 2020-05-27 |
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