Apparatus for providing multi-spectral light for an image projection system
View Patent ↗A solid state multi-spectral light source for a multi-spectral light source system includes an array of LED groups, wherein each LED group may include red, green, and blue LEDs. The LEDs produce color light bars by activating the appropriate color LEDs. The color light bars can be flashed or scrolled to integrate a color display.
1. A solid state multi-spectral light source comprising:
a plurality of light-emitting diodes,
wherein:
at least two of the light-emitting diodes produce two different colors, and
the light source is configured to produce at least two different color light bars that scroll through selective activation of like colored light-emitting diodes in dependence upon an image signal.
2. The light source according to claim 1 , wherein the light-emitting diodes are arranged in groups, each group having at least two light-emitting diodes which produce the two different colors.
3. The light source according to claim 2 , wherein the light-emitting diode groups each include three light-emitting diodes which produce three different colors.
4. The light source according to claim 1 , wherein
the light-emitting diodes are defined on a wafer.
5. The light source according to claim 1 , wherein
the light-emitting diodes are formed by a plurality of substrates disposed on a circuit board,
each of the light-emitting diodes corresponding to one of the plurality of substrates.
6. A multi-spectral light source system comprising:
a light valve; and
a solid state multi-spectral light source that scrolls different colored light bars onto the light valve to produce a color image, the light source including a plurality of light-emitting diodes, wherein at least two of the light-emitting diodes produce two different colors.
7. The light source system according to claim 6 , wherein the light-emitting diodes of the light source are arranged in groups, each group having at least two light-emitting diodes which produce the two different colors.
8. The light source system according to claim 7 , wherein the light emitting diode groups of the light source each include three light-emitting diodes which produce three different colors.
9. The light source system according to claim 7 , wherein the light-emitting diode groups of the light source produce two different color light bars that scroll through selective actuation of like colored light-emitting diodes.
10. The light source system according to claim 6 , wherein the light-emitting diodes of the light source are defined on a wafer.
11. The light source system according to claim 6 , wherein the light-emitting diodes of the light source are defined by a plurality of substrates disposed on a circuit board, each of the light-emitting diodes corresponding to one of the plurality of substrates.