SYNCHRONOUS LIGHT ADJUSTMENT METHOD AND THE DEVICE FOR PERFORMING THE SAME

• US 20130069539A1
• Filed: 05/07/2012
• Published: 03/21/2013
• Est. Priority Date: 09/21/2011
• Status: Active Grant

• Current Assignee: Yu-Sheng So
• Original Assignee: Yu-Sheng So
• Inventors: SO, YU-SHENG
• Granted Patent: US 8,674,625 B2
• Time in Patent Office: Days
• US Class Current: 315/152
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/22 using optical feedback

Abstract

A synchronous light adjustment method and the device for performing the same are proposed. Each of plurality of lamps is installed with a light sensor and a control unit. By actuating a single power switch, the control unit will control the illumination of a respective one of the LED lamps independently and automatically based on the environmental illumination detected by a light sensor. Further, by switching the power switch manually to match predetermined operations, the control units will adjust the illuminations and color temperatures of the LED lamps synchronously and gradually. The device is convenient in installation and usage.

Claims

1. A synchronous light adjustment method for illumination or color temperature synchronous adjustment of at least one lamp, in that synchronism of a plurality of lamps are based on a frequency or a period of AC power source input to the at least one lamp, the method comprising the steps of:

setting a first class operation which defines an operation that;

at least one power switch is switched through N limes in a predetermined time duration, while other switching out of the duration is discontinuous with the switching within the duration; and

N is a predetermined integer;

using a control unit to detect whether a switching operation about a power switch matches to the first class operation; and

if yes, the control unit controlling the plurality of LED lamps to actuate or stop a set operation;

namely, if the set operation is performed, the control unit will stop the operation;

if the set operation is not performed, the control unit will actuate the set operation;

wherein the set operation is one of an illumination adjustment and a color temperature adjustment.

2. The method of claim 1, wherein if the set operation is the illumination adjustment which means that the illuminations of the plurality of LED lamps arc changed synchronously, the control unit will slop the synchronous adjustment of the illuminations;

and if the illuminations of the plurality of LED lamps are not changed synchronously, the control unit will actuate the synchronous adjustment of the illuminations.

3. The method of claim 1, wherein if the set operation is the color temperature adjustment which means that the color temperatures of the plurality of LED lamps are changed synchronously, the control unit will stop the synchronous adjustment of the color temperatures;

alternatively, if the color temperatures of the plurality of LED lamps arc not changed synchronously, the control unit will actuate the synchronous adjustment of the color temperatures of the LED lamps.

4. The method of claim 1, wherein a second class operation of the control unit is set, the second class operation is defined as a power switch is switched through M times in a predetermined time duration, while other switching out of the duration is discontinuous with the switching within the duration;

in that, M is a predetermined integer and is unequal to N;

other than above mentioned first class operation, the control unit also determines whether of the switching operation is matched to the definition of the second class operation;

if yes, the control unit will cause the set operation to the LED lamps to be reversed;

wherein the set operation is illumination adjustment or color temperature adjustment.

namely, if the illuminations of the LED lamps are adjusted from a dark state to a light state, the control unit will reverse the operation to be from the light state to the dark state;

or if the color temperatures of the LED lamps are adjusted from a high value to a low value, then the control unit will reverse the operation to be from the low value to the high value, and vice versa.

5. The method of claim 4, wherein the set operation is synchronous and gradual adjustment of illumination;

and

if the illumination is changed from a light state to a dark state, the set operation causes that the control unit reverses the operation to be from the dark state to the light state; and

vice versa.

6. The method of claim 4, wherein the set operation is synchronous and gradual adjustment of color temperature;

and

if the color temperatures of the LED lamps arc adjusted from a high value to a low value, then the control unit will reverse the operation to be from the low value to the high value, and vice versa.

7. The method of claim 3, wherein if the set operation is that no color temperature is adjusted, then if the set operation means that the illuminations of the plurality of LED lamps are changed synchronously, the control unit will stop the synchronous adjustment of the illuminations;

and if the illuminations of the plurality of LED lamps are not changed synchronously, the control unit will actuate the synchronous adjustment of the illuminations.

8. The method of claim 7, wherein a second class operation of the control unit is set, the second class operation is defined as a power switch is switched through M times in a predetermined time duration, while other switching out of the duration is discontinuous with the switching within the duration;

in that, M is a predetermined integer and is unequal to N;

when the switching operation is not a second class operation, if the plurality of LED lamps are in state of adjustment of color temperature, then the adjustment of color temperature is stopped;

on the contrary, if the plurality of LED lamps are not at a state of adjustment of color temperature, and no illumination adjustment is performed, then the control unit actuates the color temperature adjustment to the LED lamps;

if the plurality of LED lamps arc not at a state of color temperature adjustment, but the illumination is adjusted, then the trend of the illumination change is reversed, that is;

if the illumination from a light state to a dark state, the control unit will reverse the operation to be from the dark state to the light state; and

vice versa.

9. The method of claim 1, wherein the change of illuminations of the LED lamps are initially actuated from a lightest state, a darkest state, or a previous illumination when the lamp is turned off, or

the change of color temperatures of the LED lamps are initially actuated from a highest state, a lowest state, or a previous state when the lamp is turned off.

10. The method of claim 4, wherein the synchronism of the adjustments of the LED lamps is based on the AC power source frequency or period of currents supplied to the LED lamps;

when the control unit determines that the switching operation of the power switch is not the first or second class operation as defined above, one counter of the control unit is reset and the accumulation of counting number is stopped;

if the switching operation of the power switch of the control unit is matched to the first class operation or the second class operation, the accumulation of the counting number is started based on the AC power source frequency or period of a current flowing to the power switch;

when the accumulation of the counting number is achieved to a set value, the illumination or color temperature of the LED lamp is adjusted through one step and the counter is reset;

then the counter counts again to the set value, and the illumination or color temperature is further adjusted through one step;

above operation is repeated until the illumination is at a darkest state or at a lightest state;

or color temperature has achieved to a highest state or a lowest state;

or the control unit transfers a stop instruction; and

then the counter is reset and accumulation of counting number is also stopped.

11. The method of claim 4, wherein when operations of the power switch are unmatched to the first or second class operation, the control units will drive the LED lamps independently to adjust the illumination of the LED lamps based on environmental illumination detected by the light sensor.

12. A synchronous light adjustment device for illumination or color temperature synchronous adjustment of at least one lamp, comprising:

one or a plurality of LED lamps;

one or a plurality of light sensors arranged on the LED lamps or near the LED lamps;

one or a plurality of control units electrically connected to the LED lamps and light sensors;

a power switch electrically connected to the control units and a power source;

as the power switch being turned on, the control units will drive the LED lamps independently to adjust the illumination of the LED lamps based on environmental illumination detected by the light sensor;

wherein if switching limes of the power switch are matched to predetermined operations, the control unit will enter into manual operation modes to adjust illuminations and color temperatures of the LED lamps, or the color temperature returns to an auto-operation mode from the manual operation mode;

in that the predetermined operation means that at least one power switch is switched through N times in a predetermined time duration, while other switching out of the duration is discontinuous with the switching within the duration; and

N is a predetermined integer; and

the synchronism of the adjustments of the LED lamps are based on the AC power source frequency or period of currents supplied to the LED lamps;

when the control unit determines that the switching operation of the power switch is unmatched the defined operation, one counter of the control unit is reset and the accumulation of the times of the counter is stopped;

if the switching operation of the power switch of the control unit is matched to the above mentioned first class operation or second class operation, the accumulation of the counting number is started based on the AC power source frequency or period of a current flowing to the power switch;

when the accumulation of the counting number is achieved to a set value, the illumination or color temperature of the LED lamp is adjusted through one step and the counter is reset;

then the counter counts again to the set value, and the illumination or color temperature are further adjusted through one step;

above operation is repealed until the illumination is at a darkest state or at a lightest state;

or color temperature has achieved to a highest state of a lowest state;

or the control unit emitting a stop instruction;

then the counter is rest and accumulation of counting number is also stopped.

13. The device of claim 12, wherein the light sensor is installed within a positioning hole and the positioning hole is formed in a transparent mask, or a casing or a lamp frame, or in a casing of a tube lamp.

14. The device of claim 12, wherein the LED lamp has a casing;

a ring enclosing the casing;

a cambered strip is installed to the ring and extends along a surface of the LED lamp to a bottom of the LED lamp;

the light sensor, is installed to a bottom of the cambered strip and is positioned on the bottom of the LED lamp; and

the cambered strip is formed as a ring or has a C shape.

15. The device of claim 14, wherein the cambered strip is fixed to or pivotal to the ring, and is electrically connected to the light sensor through the cambered strip.

16. The device of claim 12, wherein the light sensor is installed with a label adhered near the light sensor to shield part of light incident to the light sensor.

17. The device of claim 12, wherein a light shielding element is movably installed near the light sensor for shielding part of light incident to the light sensor;

and

the light shielding element has a window positioned corresponding to the light sensor.