Security light with lifestyle solutions

A lifestyle lighting device, comprising:

• a light emitting unit, comprising a first LED load for emitting light with a low light color temperature and a second LED load for emitting light with a high light color temperature electrically connected in parallel;
• a light diffuser, covering the light emitting unit to diffuse lights generated by the light emitting unit;
• a loading and power control unit, configured with a controller electrically coupled with a switching circuitry electrically connected between a power source and the light emitting unit for controlling and transmitting electric power to the light emitting unit;
• a photo sensor electrically coupled with the controller, for switching on the light emitting unit at dusk and switching off the light emitting unit at dawn;
• a motion sensor electrically coupled with the controller, for detecting a motion intrusion;
• a first external control device electrically coupled with the controller, for generating at least one first external control signal;
• and
• a time setting algorithm, in conjunction with the first external control device for setting a preset time point employed to switch the light emitting unit from performing a first illumination mode to performing a second illumination mode;
• wherein the switching circuitry comprises a first semiconductor switching device electrically connected to the first LED load and a second semiconductor switching device electrically connected to the second LED load, wherein the controller outputs a first control signal to control a first conduction rate of the first semiconductor switching device for delivering a first electric power to the first LED load and outputs a second control signal to control a second conduction rate of the second semiconductor switching device for delivering a second electric power to the second LED load to generate different illuminations thru the light diffuser producing different mingled lights respectively with different light color temperatures for performing at least the first illumination mode and the second illumination mode to characterize a lifestyle lighting solution;
• wherein the first illumination mode is a general illumination mode with the motion sensor being temporarily deactivated and the second illumination mode is a motion sensing illumination mode with the motion sensor being activated;
• wherein when the controller receives the at least one first external control signal generated by the first external control device, the controller operates the time setting algorithm to set the preset time point determined by a time length of a delay time tD selected by the first external control device and controlled by the controller to convert the light emitting unit from performing the first illumination mode to performing the second illumination mode, wherein the preset time point is the time point when the time length of the delay time tD expires;
• wherein at dusk the light emitting unit is switched on by the photo sensor to perform the first illumination mode with a first level illumination characterized with a first light intensity and a first light color temperature, wherein the controller manages to output the first control signal and the second control signal to respectively control the first conduction rate of the first semiconductor switching device and the second conduction rate of the second semiconductor switching device to jointly deliver a total electric power to the light emitting unit;
• the first illumination mode with the first level illumination continues for the delay time tD until the light emitting unit is switched to perform the second illumination mode at the preset time point selected by a user, wherein when the second illumination mode is started, the light emitting unit is in a turned off state with the motion sensor being activated, wherein during the second illumination mode when a motion intrusion is detected by the motion sensor, the controller manages to output the second control signal to conduct the second semiconductor switching device to deliver the second electric power to the second LED load to enable the lighting emitting unit to generate a second level illumination characterized with a second light intensity and a second light color temperature thru the light diffuser for a short predetermined time duration before resuming back to the turned off state, wherein the second light intensity of the second level illumination is equal to or higher than the first light intensity of the first level illumination in the first illumination mode, wherein at dawn the light emitting unit is switched off by the photo sensor to end the second illumination mode;
• wherein the plurality of light emitting diodes and the power source are configured to have a combination of in parallel and/or in series connections such that an electric current passing through each LED of the light emitting unit remains at an adequate level and thus a voltage V across each LED of the first light emitting unit complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the LED construction.

A lifestyle lighting device, comprising:

• a light emitting unit, configured with a plurality of light emitting diodes;
• a loading and power control unit, configured with a controller electrically coupled with a switching circuitry electrically connected between a power source and the light emitting unit for controlling an electric power transmitted to the light emitting unit;
• a first external control device electrically coupled with the controller, for generating at least one first external control signal;
• and
• a time setting algorithm, in conjunction with the first external control device for managing the light emitting unit on a clock time basis to perform at least a first illumination mode;
• wherein the switching circuitry comprises at least one semiconductor switching device for controlling a transmission of the electric power delivered to the light emitting unit, wherein the controller outputs at least one control signal to control at least a conduction rate of the at least one semiconductor switching device to generate at least an illumination to perform the first illumination mode;
• wherein when the controller receives the at least one first external control signal generated by the first external control device, the controller operates the time setting algorithm to determine a preset time point and a delay time tD selected by a user to perform the first illumination mode;
• wherein at dusk the light emitting unit is switched on at the preset time point to perform the first illumination mode for the delay time tD according to the at least one first external control signal, wherein upon a maturity of the delay time tD, the light emitting unit is switched off and the lifestyle lighting device is reset for performing a next operating cycle on a daily repetitive basis;
• wherein the plurality of light emitting diodes and the power source are configured to have a combination of in parallel and/or in series connections such that an electric current passing through each LED of the light emitting unit remains at an adequate level and thus a voltage V across each LED of the light emitting unit complies with an operating constraint of Vth<V <Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the LED construction.

A method of configuring a fixed time point timer for operating a lifestyle lighting solution of a light emitting unit, configured with a plurality of light emitting diodes and featured with at least a first illumination mode and at least a second illumination mode being divided at a fixed time point, comprising:

• using a photo sensor to turn on the light emitting unit at dusk and to turn off the light emitting unit at dawn;
• using a controller to trace and update daily time length data between a light-on time at dusk and a light-off time at dawn controlled by the photo sensor for a number of days on a moving average basis to continuously obtain a moving average value T of night time duration due to seasonal effect;
• using a season adjustment algorithm designed in the controller to dynamically adjust a time length of a delay time tD for performing the first illumination mode and updating the delay time tD on an on-going basis according to the following formula:
• tD=t0+(T−12)/2
• wherein t0 is a fixed length of time delay selected for performing an illumination mode during the seasons when the time length of night time is equal to the time length of day time, wherein T is the moving average of time lengths of night time measured by the on/off performance of the photo sensor between nightfall and daybreak;
• wherein the controller accordingly uses a season adjusted value of tD to dynamically control the time length of the delay time tD for performing the first illumination mode until being converted to the second illumination mode at the fixed time point;
• using the controller to control at least a conduction rate of at least one semiconductor switching device of a switching circuitry electrically connected between a power source and the light emitting unit to determine an electric power transmitted to the light emitting unit for generating different light intensities respectively for performing at least the first illumination mode and the second illumination mode;
• using a configuration of in series and in parallel connections for constructing the plurality of light emitting diodes of the light emitting unit such that when incorporated with the power source an electric current passing through each LED of the light emitting unit remains at an adequate level such that a voltage V across each LED of the light emitting unit complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the LED construction;
• wherein at dusk the light emitting unit is switched on to perform the first illumination mode with a first level illumination for the delay time tD and upon a maturity of the delay time tD the light emitting unit is converted to perform the second illumination mode with a second level illumination, wherein the second level illumination is either a turned off state or a low level state with a reduced light intensity, the second illumination mode continues till daybreak when the photo sensor operates to switch off the light emitting unit and the controller is resumed for performing next operating cycle, wherein the season adjusted time delay tD enables the light emitting unit to be converted from performing the first illumination mode to performing the second illumination mode at the fixed time point.

A method of configuring an anytime setting timer for operating a lifestyle lighting solution of a light emitting unit, configured with a plurality of light emitting diodes and featured with at least a first illumination mode and a second illumination mode being divided at a clock time point selected by a user, comprising:

• using a photo sensor, for automatically switching on the light emitting unit at dusk and switching off the light emitting unit at dawn;
• using an external control device electrically coupled to a controller to generate an external control signal for activating the anytime setting timer and selecting the anytime point to convert from performing the first illumination mode to performing the second illumination mode;
• using an anytime setting algorithm to operate the anytime setting timer, wherein at a selected clock time point when the user operates the external control device to generate the external control signal received by the controller, the controller operates to promptly convert the light emitting unit from performing the first illumination mode to performing the second illumination mode and at the same time records the clock time point for repetitive performance on a daily basis until another external control signal is produced by the at least one external control device and is received by the controller for changing the selected clock time point, wherein at dusk the light emitting unit is turned on automatically by the photo sensor to perform the first illumination mode until reaching the selected clock time point to convert to perform the second illumination mode and at dawn the light emitting unit is turned off with the controller being reset for the next operating cycle;
• using the controller to control at least a conduction rate of at least one semiconductor switching device of a switching circuitry electrically connected between a power source and the light emitting unit configured with a plurality of light emitting diodes to control an electric power transmitted to the light emitting unit for generating different light intensities respectively for performing at least the first illumination mode and the second illumination mode;
• using a configuration of in series and in parallel connections for constructing the plurality of light emitting diodes of the light emitting unit such that when incorporated with the power source an electric current passing through each LED of the light emitting unit remains at an adequate level such that a voltage V across each LED of the light emitting unit complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the light emitting unit.

A method of configuring a lifestyle lighting solution with a fixed time period timer for controlling a lighting performance of a light emitting unit configured with a plurality of light emitting diodes comprising:

• using a photo sensor to automatically switch on the light emitting unit at dusk to perform a first illumination mode and automatically switch off the light emitting unit at dawn;
• using an external control device configured with a plurality of switches, electrically coupled to a controller, for respectively selecting and activating different delay time processes, wherein when a relevant switch is selected, a relevant voltage signal is generated to the controller to activate a relevant delay time tD process for selecting a time length of a delay time tD for performing the lifestyle lighting solution;
• using the controller to receive the relevant voltage signal generated by the external control device operated by a user to execute the relevant delay time tD process to convert the light emitting unit from performing the first illumination mode with a first level illumination to performing a second illumination mode with a second level illumination at a time point when the time counting of the time length of the delay time tD ends;
• using the controller to control at least a conduction rate of at least one semiconductor switching device of a switching circuitry electrically connected between a power source and the light emitting unit to control an electric power transmitted to the light emitting unit for generating different light intensities respectively for performing at least the first illumination mode and the second illumination mode, wherein the second level illumination is either a turned off state with a zero light intensity or a low level state with a reduced light intensity;
• using a configuration of in series and or in parallel connections for constructing the plurality of light emitting diodes of the light emitting unit such that when incorporated with an adequate level of the power source an electric current passing through each LED of the light emitting unit remains at an adequate level such that a voltage V across each LED of the light emitting unit complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the LED construction.

A method of configuring a lifestyle lighting solution with a clock timer for controlling a lighting performance of a light emitting unit, comprising:

• using a photo sensor to switch on the light emitting at dusk to perform a first illumination mode and switch off the light emitting unit at dawn;
• using a clock to provide a current clock time information to a controller;
• using a first external control device configured with a plurality of selection switches, electrically coupled to the controller for respectively selecting and activating different clock time setting processes, wherein when a relevant switch is selected, a relevant first external control signal is generated to the controller to activate a relevant clock time setting process for performing the lifestyle lighting solution;
• using the controller to receive the first external control signal generated by the first external control device operated by a user to convert the light emitting unit from performing the first illumination mode with a first level illumination to performing a second illumination mode with a second level illumination at a time point when the selected clock time is due according to the clock time information provided by the clock;
• using the controller to control at least a conduction rate of at least one semiconductor switching device of a switching circuitry electrically connected between a power source and the light emitting unit to determine an average electric power transmitted to the light emitting unit for generating different light intensities respectively for performing at least the first illumination mode and the second illumination mode;
• using a configuration of in series and in parallel connections for constructing the plurality of light emitting diodes such that when incorporated with an adequate level of the power source an electric current passing through each LED of the light emitting unit remains at an adequate level such that a voltage V across each LED of the light emitting unit complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of the LED, wherein Vth is a threshold voltage required to trigger the LED to start emitting light and Vmax is a maximum operating voltage across the LED to avoid a thermal damage or burning out a semiconductor structure of the LED construction;
• wherein at dusk the light emitting unit is switched on to perform the first illumination mode with the first level illumination, wherein when the selected clock time is due according to the clock time information from the clock timer, the controller accordingly operates to convert the light emitting unit from performing the first illumination mode with the first illumination level to performing the second illumination mode with the second illumination level, wherein the second level illumination is a turned off state with a zero light intensity or a low level state with a reduced light intensity, wherein at dawn the light emitting unit is switched off by the photo sensor.