# US 2016/0258609 A1 · Led lighting apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0258609 A1 - Document ID: US20160258609A1 - Status: Published application - Kind: A1 - Application number: 15/052,374 - Filed: 2016-02-24 - Published: 2016-09-08 - Earliest claimed: 2015-03-02 - Assignees: Rohm Co., Ltd. - Applicants: Rohm Co., Ltd. - Inventors: Yoshifumi FUJIMOTO; Hirotaka SHIMIZU; Hideharu OSAWA; Hiroki YONEDA - Web page: https://patentgrep.com/patent/US20160258609A1 ## CPC - F21V 23/0471: {the sensor detecting the proximity, the presence or the movement of an object or a person} - G01S 13/56: for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)} - H05B 45/00: Circuit arrangements for operating light-emitting diodes [LED] - H05B 47/115: by determining the presence or movement of objects or living beings - H05B 47/16: by timing means - F21V 23/02: the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} - F21Y 2105/18: annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam - F21Y 2115/10: Light-emitting diodes [LED] - H05B 45/30: Driver circuits - Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - 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 - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract An LED lighting apparatus includes an LED light-emitting unit, a radar detector, a controller, and a translucent cover. The LED light-emitting unit has a plurality of LED chips. The radar detector transmits radio waves, receives radio waves reflected by an object, and detects a movement of the object based on a change in a wavelength of the received radio waves. The controller controls light emission of the LED light-emitting unit based on a result of the detection by the radar detector. The translucent cover covers the LED light-emitting unit in a main emission direction in which a center of the light emitted from the LED light-emitting unit travels, and allows light from the LED light-emitting unit and the radio waves from the radar detector to pass through. The radar detector is surrounded by the LED light-emitting unit in the main emission direction. ## Claims ### Claim 1 An LED lighting apparatus comprising: an LED light-emitting unit having a plurality of LED chips; a radar detector configured to transmit radio waves, receive radio waves reflected by an object, and detect a movement of the object based on a change in a wavelength of the received radio waves; a controller configured to control light emission of the LED light-emitting unit based on a result of the detection by the radar detector; and a translucent cover that covers the LED light-emitting unit in a main emission direction in which a center of the light emitted from the LED light-emitting unit travels, the translucent cover allowing light from the LED light-emitting unit and the radio waves from the radar detector to pass through, wherein the radar detector is surrounded by the LED light-emitting unit as viewed in the main emission direction. ### Claim 2 (depends on 1) The LED lighting apparatus according to claim 1, wherein the translucent cover allows the light from the LED light-emitting unit to diffuse as the light passes through the translucent cover. ### Claim 3 (depends on 2) The LED lighting apparatus according to claim 2, wherein the translucent cover is made of one of resin or glass. ### Claim 4 (depends on 1) The LED lighting apparatus according to claim 1, further comprising a radar switching unit that includes the radar detector and a switch that is switched based on a result of the detection by the radar detector. ### Claim 5 (depends on 4) The LED lighting apparatus according to claim 4, further comprising a power unit configured to supply electric power to the LED light-emitting unit. ### Claim 6 (depends on 5) The LED lighting apparatus according to claim 5, wherein the radar switching unit is electrically interposed between the power unit and the LED light-emitting unit. ### Claim 7 (depends on 6) The LED lighting apparatus according to claim 6, wherein the LED light-emitting unit has an LED substrate that supports the plurality of LED chips. ### Claim 8 (depends on 7) The LED lighting apparatus according to claim 7, wherein the LED substrate is annular as viewed in the main emission direction. ### Claim 9 (depends on 7) The LED lighting apparatus according to claim 7, wherein the LED light-emitting unit includes a plurality of LED modules each having the LED chips, the translucent resin that covers the LED chips and mount terminals. ### Claim 10 (depends on 7) The LED lighting apparatus according to claim 7, wherein the radar switching unit has a sensor substrate on which the radar detector is mounted, and a main substrate on which the switch is mounted. ### Claim 11 (depends on 10) The LED lighting apparatus according to claim 10, wherein the sensor substrate is arranged more forward than the main substrate in the main emission direction. ### Claim 12 (depends on 11) The LED lighting apparatus according to claim 11, wherein the main substrate and the sensor substrate overlap with each other as viewed in the main emission direction. ### Claim 13 (depends on 12) The LED lighting apparatus according to claim 12, wherein the sensor substrate is positioned more forward than the LED substrate in the main emission direction. ### Claim 14 (depends on 13) The LED lighting apparatus according to claim 13, wherein the sensor substrate is arranged in a position that avoids a light distribution angle that is a direction in which light of half a forward luminous intensity of each of the LED chips is emitted. ### Claim 15 (depends on 13) The LED lighting apparatus according to claim 13, wherein the main substrate is positioned more backward than the LED substrate in the main emission direction. ### Claim 16 (depends on 12) The LED lighting apparatus according to claim 12, wherein the sensor substrate and the LED substrate are integrated into a single substrate. ### Claim 17 (depends on 7) The LED lighting apparatus according to claim 7, further comprising: a case that supports the LED light-emitting unit, the translucent cover, and the power unit; and a base fixed to the case and attachable to a feeding unit. ### Claim 18 (depends on 17) The LED lighting apparatus according to claim 17, wherein the base is configured to be attached to or detached from the feeding unit by rotation of the base relative to the feeding unit. ### Claim 19 (depends on 18) The LED lighting apparatus according to claim 18, wherein the base includes a pair of pins that are spaced apart from each other in a radial direction that is perpendicular to the main emission direction. ### Claim 20 (depends on 19) The LED lighting apparatus according to claim 19, wherein the radar detector is sandwiched between the pair of pins in the main emission direction. ### Claim 21 (depends on 20) The LED lighting apparatus according to claim 20, wherein the radar switching unit is sandwiched between the pair of pins in the main emission direction. ### Claim 22 (depends on 20) The LED lighting apparatus according to claim 20, wherein the LED substrate overlaps with the pair of pins as viewed in the main emission direction. ### Claim 23 (depends on 19) The LED lighting apparatus according to claim 19, wherein the base includes a projection arranged between the pair of pins and protruding backward in the main emission direction. ### Claim 24 (depends on 23) The LED lighting apparatus according to claim 23, wherein the protrusion houses the power unit. ### Claim 25 (depends on 24) The LED lighting apparatus according to claim 24, wherein the power unit has a portion positioned more backward than the pair of pins in the main emission direction. ### Claim 26 (depends on 6) The LED lighting apparatus according to claim 6, further comprising a case for supporting the LED light-emitting unit, the translucent cover and the power unit, wherein the case has a bottomed tubular shape and is formed with an opening, and the translucent cover covers the opening. ### Claim 27 (depends on 26) The LED lighting apparatus according to claim 26, wherein the case is made of metal. ### Claim 28 (depends on 26) The LED lighting apparatus according to claim 26, further comprising an LED unit that includes the LED light-emitting unit, the power unit and the radar switching unit. ### Claim 29 (depends on 28) The LED lighting apparatus according to claim 28, wherein the LED unit includes a heat dissipater to which the LED light-emitting unit is attached. ### Claim 30 (depends on 29) The LED lighting apparatus according to claim 29, wherein the heat dissipater has a top plate portion and a tubular portion that extends from the top plate portion, and the LED light-emitting unit is attached to the top plate portion. ### Claim 31 (depends on 30) The LED lighting apparatus according to claim 30, wherein the tubular portion has an outer surface on which a plurality of fins are provided. ### Claim 32 (depends on 31) The LED lighting apparatus according to claim 31, wherein the power unit is housed in the tubular portion of the heat dissipater. ### Claim 33 (depends on 29) The LED lighting apparatus according to claim 29, wherein the LED unit has an inner cover, and the inner cover is attached to the heat dissipater and allows the light from the LED light-emitting unit to pass through. ### Claim 34 (depends on 33) The LED lighting apparatus according to claim 33, wherein the inner cover allows the light from the LED light-emitting unit to diffuse as the light passes through the inner cover. ### Claim 35 (depends on 34) The LED lighting apparatus according to claim 34, wherein the inner cover is made of one of resin or glass.