LED bulbs with adjustable color temperature, brightness, and beam angle

Abstract

An adjustable LED bulb with adjustable color temperature, brightness, and emission angle includes an LED module, an optical mechanism, and a control module mounted in a lamp housing. The lamp housing includes a coaxially arranged and rotatable housing module and a tilting element. The LED module is mounted in the housing module and has two LED units capable of producing different color temperatures. The optical mechanism performs optical processing on the light from the LED module to adjust the emission angle. The control module includes a control unit and a switch connected to the tilting element. The switch can be driven by the tilting element to switch driving modes, allowing the user to adjust the color temperature of the light projected by the LED bulb. Furthermore, the control module analyzes the power supply voltage waveform to adjust the brightness of the LED units, achieving simultaneous adjustment of color temperature, brightness, and emission angle.

Claims

1. An adjustable color temperature, brightness, and emission angle LED bulb, comprising: a conductive connector; a housing mechanism mounted on the conductive connector, including a housing module disposed along an axis and a pivoting component, the pivoting component being operable to rotate relative to the housing module about the axis, the housing module having a light-emitting port facing away from the conductive connector; and an LED module mounted in the housing module and controllable to emit light toward the light-emitting port, the LED module having two LED units that can be individually controlled to produce light of different color temperatures; An optical mechanism is mounted on the housing module, covering the light outlet. The optical mechanism can be used to optically process the light from the LED module and project the processed light outward. A control module is disposed in the housing module and electrically connected to the conductive connector and the LED module. The control module includes a control unit and a switch electrically connected to the control unit and connected to the switching element. The switch can be driven by the rotation of the switching element to switch between multiple driving modes. The control unit is triggered by the switch when switched to one of the driving modes, and controls only one of the corresponding LED units to light up, or controls all LED units to light up simultaneously.

2. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1, wherein, The lamp housing mechanism also includes a first positioning module disposed between the housing module and the rotating component. The first positioning module has a plurality of first positioning grooves that are spaced apart around the axis and disposed in one of the housing module and the rotating component, and a first positioning member disposed in the other of the housing module and the rotating component and detachably engaged in one of the first positioning grooves. When the rotating component rotates relative to the housing module, it will drive the first positioning member and the first positioning grooves to move relative to each other. When the first positioning member is engaged in one of the first positioning grooves, the rotating component will rotate and be positioned relative to the housing module, and the switch will be positioned in one of the drive modes.

3. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 2, wherein, The switching component has an operating ring portion disposed on the outer periphery of the housing module for operation, a transmission portion coaxially connected to the inner periphery of the operating ring portion and located in the housing module, and a central connecting portion disposed on the transmission portion and coaxial with the axis. The switching switch has a central shaft coaxially connected to the central connecting portion. The switching component drives the central shaft via the central connecting portion, and the switching switch switches the driving modes when the central shaft is driven.

4. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 2, wherein, The housing module has a housing disposed on the conductive connector and an end seat disposed on the side of the housing facing away from the conductive connector and defining the light outlet. The adjusting member is rotatably mounted between the housing and the end seat facing each other. The first positioning member and the first positioning groove of the first positioning module are respectively disposed on the facing surfaces of the adjusting member and the end seat.

5. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 4, wherein, The first positioning element is a ball positioning pin that is embedded in the corresponding rotating element or the end seat.

6. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1, wherein, Each LED unit has multiple LEDs. When the control unit controls the activation of only one LED unit, it controls all the LEDs in that LED unit to emit light. When the control unit controls the activation of all LED units simultaneously, it controls some of the LEDs in each LED unit to emit light.

7. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1, wherein, The optical mechanism includes a first dimming lens group and a second dimming lens group arranged along the axis in the housing module. The first dimming lens group and the second dimming lens group can cooperate to perform optical processing on the light from the LED module, so that the outwardly penetrating light forms a beam of light with a specific emission angle. The second dimming lens group and the first dimming lens group can rotate relative to each other around the axis to adjust the emission angle of the beam of light formed by the outwardly penetrating light.

8. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 7, wherein, The first dimming lens assembly includes an annular mounting base installed in the housing module, and a first optical lens mounted and fixed on the inner periphery of the mounting base. The second dimming lens assembly includes an annular dimming ring rotatably mounted in the housing module, and a second optical lens mounted on the inner periphery of the dimming ring. The first optical lens and the second optical lens can cooperate to perform optical processing on the light from the LED module. The dimming ring can be driven to rotate relative to the housing module, and drive the second optical lens to rotate relative to the first optical lens, so that the second optical lens and the first optical lens cooperate to adjust the emission angle of the beam formed by the transmitted light.

9. An LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 8, wherein, The optical mechanism further includes a second positioning module disposed between the dimming ring and the housing module. The second positioning module has a plurality of second positioning grooves that are spaced apart around the axis and disposed in one of the housing module and the dimming ring, and a second positioning member disposed in the other of the housing module and the dimming ring and detachably engaged in one of the second positioning grooves. When the dimming ring rotates relative to the housing module, it will drive the second positioning member to move relative to the second positioning grooves. When the second positioning member is engaged in one of the second positioning grooves, the dimming ring will rotate and be positioned relative to the housing module.

10. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 9, wherein, The second positioning element is a ball positioning pin embedded in the corresponding dimming ring or housing module.

11. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 8, suitable for use with a beam pattern adjuster having a plurality of drive portions spaced apart around the axis, wherein, The dimming ring has an outer ring surface facing away from the first optical lens, and has a plurality of assembly portions spaced along its periphery on the outer ring surface, which can be used to allow the driving parts of the light pattern adjustment member to be detachably assembled.

12. An LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1 or 7, suitable for electrical connection and mounting in a lamp holder with brightness adjustment function, the lamp holder outputting a phase-cut AC sine wave chopped voltage waveform according to the adjusted brightness, wherein, The control module also includes a brightness adjustment unit that is signal-connected to the control unit. The brightness adjustment unit analyzes the chop voltage waveform output by the lamp holder to obtain a brightness parameter. The control unit adjusts the brightness of all LED units currently activated based on the brightness parameter.

13. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1, wherein, The conductive connector is a screw-lock type connector.

14. The LED bulb with adjustable color temperature, brightness, and emission angle as described in claim 1, wherein, The conductive connector is a plug-in type connector.

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