WO2014155088A1 - A detector unit with a reflector - Google Patents
A detector unit with a reflector Download PDFInfo
- Publication number
- WO2014155088A1 WO2014155088A1 PCT/GB2014/050934 GB2014050934W WO2014155088A1 WO 2014155088 A1 WO2014155088 A1 WO 2014155088A1 GB 2014050934 W GB2014050934 W GB 2014050934W WO 2014155088 A1 WO2014155088 A1 WO 2014155088A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detector unit
- reflective elements
- sensor
- reflector
- tilt
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000002310 reflectometry Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
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
- G01J5/0022—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
- 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
- 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
Definitions
- a detector unit with a reflector Technical Field The present invention relates to detector units, and more particularly to detector units comprising reflectors.
- Some known detector units comprise a lens for focusing signals from a detection footprint into a sensor.
- Using a lens has some advantages but, but the thick lens material required tends to cause a relatively high absorption loss of the signal being detected.
- Another problem with lenses is that it is usually necessary for the lens to protrude somewhat from a surrounding housing, which is undesirable for aesthetic reasons. It is therefore desirable to use a reflector, which can reflect signals from a detection footprint into the sensor, with much lower losses.
- a reflector may, for example, be around 95% efficient.
- a reflector is especially beneficial in a lighting control system, which needs to have a high sensitivity. Using a reflector may also enable the unit to be more aesthetically pleasing because the reflector tends not to protrude from the detector unit.
- a detection footprint that closely matches the room or space into which the detector is fitted. For example, if the detector is to be installed in a rectangular room, a circular footprint spanning the room will not cover the corners of the room.
- detector units that produce a square detector footprint have been suggested.
- the "Presence Control PRO IR Quattro Impulser” by STEINEL Professional uses a generally angular lens to create a square detection footprint.
- using a lens gives rise to the above-mentioned loss in sensitivity compared to a reflector.
- angular-shaped lenses are thought to create undesirable aesthetics.
- Square or rectangular housings (which may be needed to match these angular lenses) are also
- An alternative approach is to provide a large enough circular footprint to reach all areas of the room. However, this is wasteful as much of the detection footprint will be on the walls of the room. Such an arrangement may also have poor sensitivity because there may be large blind spots between the active zones in the footprint. Alternatively or additionally, such an arrangement may require a large reflector, resulting in an unduly bulky detector unit.
- detector units can sometimes be installed in sub-optimal positions in a room.
- a detector unit may be designed for operation in the centre of a room, but may need to be installed off-centre due to the presence of other objects, such as HVAC devices. This means the detection footprint will not necessarily fit the room in the correct/originally intended manner.
- a detector unit for a lighting control system comprising: a sensor and
- a reflector arranged to reflect signals from a detection footprint into the sensor
- the reflector comprises a plurality of reflective elements, the reflective elements being adjustable such that the shape of the detection footprint of the detector unit may be adjusted.
- the shape of the detection footprint can be tailored to the space in which the detector unit is to be used.
- the shape of the detection footprint may be adjustable in various ways :
- the detector may be arranged such that the reflective elements are adjustable to adjust the size of the detection footprint (i.e. to create a smaller or larger shaped footprint) ; this may enable the detector to zoom in, or out, over a particular area. Zooming in may be beneficial if the detector needs to have a high-resolution in a particular area, such as in proximity to an entrance to a room, and/or it may allow the detector to accommodate various mounting heights.
- the detector may be arranged such that the reflective elements are adjustable to adjust the outline perimeter of the
- the detection footprint may be adjustable such that it is non-circular, such as an angular shape that better matches the shape of a room.
- the detector may be arranged such that the reflective elements are
- the centre of the footprint may be asymmetrical to ensure a high resolution in a
- the detector may be arranged such that the reflective elements are adjustable to adjust any combination of the above-mentioned aspects of the shape.
- the reflective elements may be adjustable in any way that achieves the above-mentioned adjustment in shape of the detection footprint.
- the tilt of the reflective elements is adjustable to adjust the shape of the footprint.
- each reflective element may be independently adjustable. Adjusting the tilt of a reflective element may move the active zone of that reflective element (i.e. the zone from which it is arranged to receive a signal and reflect it to the sensor) radially inwardly or outwardly. Each reflector element may be arranged to pivot to/from a tilted position. The tilt of each reflective element may be adjustable from a respective first angle of tilt to a respective second angle of tilt. Each reflective element may be biased towards the first angle of tilt. The first angle of tilt is preferably the angle of tilt required to create a larger detection footprint than the second angle of tilt.
- the reflective elements are preferably arranged such that the spacing between each reflective element and the sensor is substantially independent of the tilt of each reflective element (the spacing typically refers to the mean spacing of all points on the reflective element from the centre of the sensor) .
- the spacing between a reflective element and the sensor is preferably the same when the reflective element is at both the first and second angles of tilt. Such an arrangement may enable the reflective elements to be maintained at their focal length from the sensor, independent of their angle of tilt.
- the reflective elements are
- the reflective elements may be
- the reflective element is sufficiently small that the reflective elements is maintained substantially at its focal length from the sensor when tilted about an off-centre pivot.
- the plurality of reflective elements may be located equidistant from the sensor.
- the reflective elements may be arranged in a ring coaxial with the sensor.
- the focal length of each of the plurality of reflective elements is preferably substantially equal.
- the reflector to be relatively easy to manufacture and/or design and may also allow the detector unit to be circular.
- the reflective elements may be adjustable in a variety of different ways, such as via an actuator or via direct manual repositioning.
- the detector unit comprises an adjusting member for adjusting the plurality of reflective elements.
- the reflective elements may be adjusted in dependence on the relative positions of the adjusting member and the reflective elements.
- the adjusting member may comprise a contact surface shaped to adjust the reflective elements in dependence on the contact between the contact surface and the reflector.
- the contact surface may be shaped to adjust the tilt of the reflective elements in dependence on the extent and/or position of, the contact between the contact surface and the reflective
- the adjusting member may be moveable from a position remote from the reflective elements, to an adjusting position in which the contact surface has contacted the reflector, thereby adjusting the reflective elements, and more preferably thereby adjusting their tilt.
- the adjusting member may be a ring.
- the adjusting member may be axially displaceable along the axis of the reflector.
- the adjusting member may be axially displaceable by virtue of a pure translation, or, for example by a rotation resulting in a translation (such as via screw thread or camming action) .
- the magnitude of the adjustment of the reflective elements may be dependent on the magnitude of the axial displacement.
- the adjusting member may be arranged to adjust all the reflective elements in the same way (for example to adjust their tilt in the same way to zoom the footprint in or out) .
- the adjusting member may be arranged to adjust the reflective elements in different ways (for example to change the outline perimeter of the footprint or to create an asymmetrical footprint) .
- the detector unit may comprise a plurality of adjusting members, each adjusting member being suitable for (for example by virtue of the shape of the contacting surface) creating a different detection footprint.
- the adjusting members may, for example, be supplied in a package with the other parts of the detector unit give the installer a variety of possible
- a package comprising a detector unit as described herein, and a plurality of adjusting members for adjusting the plurality of reflective elements.
- the detector unit preferably does not comprise a lens.
- the reflector is preferably arranged to reflect signals directly from the footprint to the sensor (i.e. without the signals having been focused through a lens) .
- a reflector for use as the reflector in the detector units described herein.
- the detector unit comprising a reflector arranged to reflect signals from a detection footprint into the sensor, the reflector comprising a plurality of reflective elements, wherein the method comprises the step of adjusting the plurality of reflective elements, such that the shape of the detection footprint of the detector unit is adjusted.
- a lighting control system comprising a light and a detector unit as described herein, the light being controlled in dependence on the output from the sensor of the detector unit.
- the lighting control system may comprise a plurality, and more preferably a multiplicity of lights, the lights being controlled in dependence on the output from the sensor of the detector unit.
- a detector unit comprising:
- a reflector arranged to reflect signals from a detection footprint into the sensor
- the reflector comprises a plurality of reflective elements arranged at substantially the same spacing from the sensor, but at least some of the reflective elements being at differing angles of tilt, such that the detection footprint is non-circular .
- the plurality of reflective elements are preferably arranged in a ring coaxial with the sensor. This facilitates a
- the detector unit of this aspect of the invention is preferably for a lighting control system.
- the tilt of the reflective elements is fixed.
- the tilt of the reflective elements of the reflector may be designed to create a specific detection footprint. It will be appreciated that some embodiments are covered by both more than one aspect of the invention
- the reflective elements are substantially the same spacing from the sensor, and at differing angles of tilt, but are also adjustable from those angles of tilt.
- the detection footprint typically comprises a plurality of active zones (each being associated with a corresponding reflective element) interspersed with blind spots.
- reflective elements is preferably non-circular.
- the reflector comprises a plurality of reflective elements.
- the reflector may comprise a multiplicity of reflective elements.
- the reflective elements may be identical (e.g. the same shape, reflectivity and focal length) .
- the reflector may comprise a plurality of concentric rings, each ring comprising a
- the concentric rings may be off-set in an axial direction.
- the reflective elements may each be pivotably mounted on the reflector such that their tilt can be adjusted.
- the reflective elements may be
- the detector unit may be substantially circular.
- the detector unit may comprise a housing.
- the housing may be circular.
- the housing may be for fitting in a circular opening in a surface.
- the detector may be installed in the circular opening in a surface, such as a ceiling.
- detector unit may comprise a circular housing, preferably coaxial with the reflector and/or sensor.
- the sensor is preferably a passive infrared sensor. Such a sensor is effective in detecting human movement.
- the passive infrared sensor (often referred to as a PIR sensor) may be for detecting changes in IR within a given area.
- the passive infrared sensor may be for detecting absolute values of IR (for example a Microelectromechanical systems (MEMS) sensor for detecting IR radiated from humans) .
- the detector unit is preferably a presence detection unit.
- Figure 1 is a perspective view of a reflector and sensor for a known detector unit
- Figure 2a is a plan view of the reflector of Figure 1 ;
- Figure 2b shows the detection footprint on the reflector of Figure 2a;
- Figure 3a is a plan view of a reflector in a detector unit according to a first embodiment of the invention also showing a region in close-up;
- Figure 3b shows the detection footprint on the reflector of Figure 3a
- Figure 4 is a perspective view from beneath of a
- Figure 5 is a perspective view from above of the
- Figure 1 shows a reflector 1001 comprising a series of concentric rings 1003 offset in an axial direction A.
- Each ring 1003 of the reflector has an inner surface formed of integrally moulded reflective facets 1005.
- Each reflective facet 1005 is arranged to receive infrared
- the facets 1005 within each of the rings 1003 share the same angle of tilt (measured as the angle of inclination to the vertical) and have the same focal length.
- Each facet 1005 is arranged to focus a signal from is respective active zone onto a passive Infrared (PIR) sensor 1011 located above the reflector 1001.
- PIR passive Infrared
- Figure 2b shows the circular detection footprint 1009 of the reflector 1001.
- the active zones 1007 are in three concentric rings corresponding to the concentric rings 1003 of the reflector 1001.
- This detector unit of the prior art is often installed in a room having a polygonal floor space.
- the detector unit is usually installed in the centre of the room to maximise the coverage of the footprint on the floor space.
- angular lenses are thought to create undesirable aesthetics and square or rectangular housings (which may be needed to match these lenses) are difficult to install because they require a square hole to be created rather than simply being able to use a rotating circular cutter to create a circular hole.
- Figures 3a and 3b show a reflector 1 for use in a
- the detector unit (now shown) is for a lighting controls system and is capable or controlling lights in a room in dependence on the output of the PIR sensor (not shown) in the detector located above the reflector.
- the aspects of the detector unit not illustrated are conventional unless indicated
- the reflector 1 comprises three concentric, axially offset, rings 3 in the same manner as the prior art of Figures 1 to 2b.
- the reflective facets 5 on the outer-most ring 3 are not all at the same angle of tilt.
- each set 15 of facets 5 comprises three facets 5a, 5b.
- the central facet 5b on each set has a slightly increased tilt and the two facets 5a either side also have an increased tilt (although of less than the central facet 5b) .
- the tilt is measured relative to the axial direction of the reflector (which is also vertical in this case) .
- the facets 5a-5b are all tilted about their lateral centreline such that the mean spacing between each facet 5 and the sensor remains unchanged. This allows the focal length of the facets 5a-5b to be identical to the focal length of the other facets 5, thereby making the reflector 1 relatively straightforward to manufacture.
- the detection footprint 9 of the reflector 1 is non- circular. As shown in Figure 3b, the active zone 7b of the most-tilted facets 5b is moved outward and the active zone 7a of the facets 5a either side are moved outward, to a lesser extent, to create a square detection footprint 9 (for the sake of clarity only some parts of the footprint 9 are labelling in Figure 3b) . This enables the detector unit to be more
- Figures 4 and 5 show a reflector 101 according to a second aspect of the invention. Where appropriate, corresponding reference numerals have been used to indicate corresponding features from the first embodiment, but with the prefix ⁇ 1' or ⁇ 10' as necessary.
- the upper-most rings 103 of the reflector 101 are identical to that in the first embodiment. However, in contrast to the first embodiment, the facets 105 on the lower-most ring 103 are adjustable. Each facet 105 comprises an resilient arm 117 that protrudes inwardly from a support ring 119. The arm 117 meets the back of each facet 105 along the lateral centreline of the facet (see a comparison of Figures 4 and 5 showing the reflector from below and above, and equal portions of the facets being visible) .
- the arm 117 is formed from a thin web of the material from which the reflector is moulded such that it elastically allows the respective facets to tilt under the action of a force on the facet 105.
- the spacing of the facet from the sensor is substantially independent of the tilt of each reflective element. This means each facet continues to focus on the sensor (now shown) when tilted or in its default position.
- the facets 5 on the lower-most ring all have the same default angle of tilt (i.e. when no outside force is applied to the facets 105) .
- the tilt can be adjusted via an adjusting member 121 (see Figure 5) .
- the adjusting member 121 is a plastic ring shaped to form an interference fit between the support ring 119 and the back of each facet 105, and to fit underneath the arms 117 of each facet.
- the upper surface 123 of the adjusting member 121 comprises a series of protrusions 125a, 125b.
- the extent that the tilt is changed is dependent on the magnitude of the axial movement of the adjusting member 121 relative to the reflector. If the adjusting member 121 is inserted such that the remainder of its upper surface 123 just touches the underside of the arms 117, four of the facets 105 will be tilted by virtue of the four largest protrusions 125b, and the two facets 105 either side thereof will be tilted by slightly less. Thus, the detection footprint of the detector unit will be the same shape as that in Figure 3b.
- the detector unit of the second embodiment thus has several of the advantages described with reference to the first embodiment.
- the second embodiment has the advantage that the detection footprint can be adjusted in various different ways.
- the detection footprint could be less angular if the adjusting member were inserted to a lesser extent in the axial direction (for example just until the largest protrusions 125b tilted four of the facets) .
- an adjusting element could comprise identical
- the detector unit is sold with several components. This would enable the detection footprint to the zoomed out (if inserted from below the reflector), or zoomed in (if inserted from above reflector) .
- the adjusting element could comprise an asymmetric arrangement of protrusions to create an asymmetric detection footprint.
- the adjustment element is not reflective and can be relatively cheap to manufacture.
- the detector unit is sold with several components.
- the adjusting element forms an interference fit in the reflector.
- the adjusting element may be inserted in other ways such as via a screw thread, or a via a camming action.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1516897.4A GB2526994B (en) | 2013-03-26 | 2014-03-25 | A detector unit with a reflector |
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 |
GB1305490.3 | 2013-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014155088A1 true WO2014155088A1 (en) | 2014-10-02 |
Family
ID=48326666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2014/050934 WO2014155088A1 (en) | 2013-03-26 | 2014-03-25 | A detector unit with a reflector |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB201305490D0 (en) |
WO (1) | WO2014155088A1 (en) |
Cited By (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 |
EP3506225A3 (en) * | 2017-12-28 | 2019-07-17 | Honeywell International 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 WO PCT/GB2014/050934 patent/WO2014155088A1/en active Application Filing
- 2014-03-25 GB GB1516897.4A patent/GB2526994B/en active Active
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 |
Cited By (3)
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 |
EP3506225A3 (en) * | 2017-12-28 | 2019-07-17 | Honeywell International Inc. | Ceiling mount intrusion detector with pir mirror with adjustable mount height |
US10605666B2 (en) | 2017-12-28 | 2020-03-31 | Ademco Inc. | Ceiling mount intrusion detector with PIR mirror with adjustable mount height |
Also Published As
Publication number | Publication date |
---|---|
GB201516897D0 (en) | 2015-11-11 |
GB201305490D0 (en) | 2013-05-08 |
GB2526994A (en) | 2015-12-09 |
GB2526994B (en) | 2020-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8840273B2 (en) | Adjustable focus light | |
WO2007024979A2 (en) | Low voltage occupancy sensor | |
US20080002396A1 (en) | Decorative Lighting Fixture with Adjustable Range Motion Detector | |
US20070208460A1 (en) | Remote Sensing For Building Automation | |
EP0733852A1 (en) | Motion activated light fixture with fixed sensor | |
US20110317435A1 (en) | Lighting system | |
US10234121B2 (en) | Flat trim ring lens for occupancy sensors | |
US20140043733A1 (en) | Ceiling mount occupancy sensor module and apparatus using the ceiling mount occupancy sensor module | |
JP2008010942A (en) | Dome type camera and housing for same | |
WO2014155088A1 (en) | A detector unit with a reflector | |
US9920922B2 (en) | Automatic light intensity compensating device of surgical light | |
KR101144735B1 (en) | Led lamp sensor light where irradiated angle control and sensor role possible | |
US8742352B2 (en) | Occupancy sensor with multi-position rotary switch | |
KR200302078Y1 (en) | Lighting-system for shifting and angle control | |
KR20170054102A (en) | Cylindrical security camera and security camera assembly including the same | |
JP2863194B2 (en) | Thermal switch | |
KR101369894B1 (en) | Sensor light capable of adjusting sensing angle | |
JP2009265036A (en) | Infrared monitoring apparatus | |
WO2018104341A1 (en) | Lighting unit | |
EP2877777B1 (en) | Recessed lighting fixture | |
KR101441611B1 (en) | Sensor light capable of adjusting sensing angle | |
US7008083B2 (en) | Method and apparatus for leveling a shade | |
JP2858785B2 (en) | Thermal sensor | |
JPH10154278A (en) | Human body detector | |
JP6708303B2 (en) | Human body detection device and lighting device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14715402 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 1516897 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20140325 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1516897.4 Country of ref document: GB |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14715402 Country of ref document: EP Kind code of ref document: A1 |