Light emitting lamp

• US 20040066652A1
• Filed: 02/03/2003
• Published: 04/08/2004
• Est. Priority Date: 03/31/2000
• Status: Active Grant

• Current Assignee: Sam-Pyo Hong
• Original Assignee: Sam-Pyo Hong
• Inventors: Hong, Sam-Pyo
• Granted Patent: US 6,836,079 B2
• Time in Patent Office: Days
• US Class Current: 362/234
• CPC Class Codes: H01J 61/96 Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The present invention relates to a light emitting lamp for controlling various brightness and color more efficiently. The light emitting lamp having plural red color emitting device, green color emitting device, and blue color emitting device; comprises an input means for inputting the control request signal of brightness and color by a user, a brightness control means for generating a digital control signal modulated in amplitude wherein the digital control signal has a plurality of signal levels in accordance with the request signal of brightness, a color control means for generating a digital control signal modulated in pulse-width wherein the digital control signal has a plurality of signal level in accordance with the request signal of color, wherein the brightness and color of plurality of the emitting device are controlled by the digital control signal modulated in amplitude and pulse-width.

Claims

1. A light emitting lamp having a plurality of emitting elements, including red color emitting elements, green color emitting elements and blue color emitting elements, comprising:

an input means for inputting a control request signal of brightness and color by a user;

a brightness control means for generating an amplitude modulated digital regulation signal having a plurality of signal levels according to the control request signal of brightness; and

a color control means for generating a pulse-width modulated digital regulation signal having a plurality of signal levels according to the control request signal of color;

wherein, the brightness of the plurality of emitting elements are controlled by the amplitude modulated digital regulation signal and the color of the plurality of the emitting elements is controlled by the pulse-width modulated digital regulation signal.

2. The light emitting lamp of claim 1, wherein the brightness control means further comprises;

an AC/DC converter for converting an AC power source to a DC power source;

a controller for generating a control signal of brightness in accordance with the control request signal of brightness after receiving the DC power source from the AC/DC converter;

a D/A converter for generating a current having a plurality of signal levels by subdividing a reference voltage in accordance with the control signal of brightness;

an amplitude modulation generator for generating the digital regulation signal of the brightness having a plurality of signal levels by modulating the current'"'"'s amplitude;

an electric power amplifier for amplifying the digital regulation of the brightness generated from the amplitude modulation generator and then for generating the digital regulation signal of brightness amplified for the plurality of emitting elements,

wherein the D/A converter generates the current having 2ⁿ signal levels according to structured bits of the D/A converter.

3. The light emitting lamp of claim 2, wherein the D/A converter is unitized with the controller.

4. The light emitting lamp of claim 1, wherein the color control means further comprises;

an AC/DC converter for converting an AC power source to a DC power source;

a controller for generating a control signal of color in accordance with the digital control request signal of color after receiving the DC power source from the AC/DC converter;

a D/A converter for generating a current having a plurality of signal levels by subdividing a reference voltage in accordance with the control signal of color;

a pulse-width modulation generator for generating the digital regulation signal of color having a plurality of signal levels by modulating the current'"'"'s pulse-width;

an electric power amplifier for amplifying the digital regulation signal of color generated from the pulse-width modulation generator and then for generating the digital regulation signal of color amplified for the plurality of emitting elements,

wherein the controller controls the red emitting elements, the green emitting elements and the blue emitting elements individually,

the D/A converter generates the current having 2ⁿ signal levels according to structured bits of the D/A converter.

5. The light emitting lamp of claim 4, wherein the D/A converter is unitized with the controller.

6. The light emitting lamp of claim 1, wherein the input means comprises at least one selected from the group consisting of a RF signal receiver for receiving the control request signal formed radio frequency signal and a switch unit for inputting the control request signal in accordance with a certain key signal.

7. The light emitting lamp of claim 6, wherein the RF signal receiver is installed on a central region formed the plurality of emitting elements or an outer region formed the plurality of emitting elements.

8. The light emitting lamp of claim 6, wherein the switch unit comprises at least an increment key and a reduction key of brightness, an increment key and a reduction key of color and a plurality of memory keys.

9. The light emitting lamp of claim 1, wherein the emitting element is a LED(Light Emitting Diode).

10. The light emitting lamp of claim 1, further comprising;

a memory for generating the control request signal of brightness and color stored to the brightness control means and the color control means.

11. The light emitting lamp having an electrode, a spiral electrode and a substrate formative implement, comprising;

a brightness control means and a color control means for controlling the brightness and the color of the light emitting lamp installed inside of the substrate formative implement;