1. An image forming apparatus having an optical scanning apparatus, said optical scanning apparatus comprising:
a pulse modulation configured to perform a pulse modulation with respect to input image data to output pulse-modulated image data;
a laser light source configured to generate a laser light beam in accordance with the pulse-modulated image data output by said pulse modulation mechanism, said laser light beam having a wavelength variation smaller than 2.0 nm per one pulse of the laser beam;
a light deflecting mechanism configured to deflect the laser light beam generated by said laser light source to convert the laser light beam into a scanning laser light beam; and
a scan-imaging device configured to condense the scanning laser light beam into a scanning light spot on a surface to be scanned.
2. An image forming apparatus as claimed in claim 1, wherein said image forming apparatus is a laser printer.
3. An image forming apparatus as claimed in claim 1, wherein said image forming apparatus is a facsimile machine.
4. An image forming apparatus as claimed in claim 1, wherein said image forming apparatus is a digital copier.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An illumination source comprising:
a light emitting diode (LED) light source, wherein an LED central axis is at 0\xb0; and
a reflector, wherein the reflector comprises at least four contiguous segments;
wherein at least a portion of light emitted between 0\xb0 and +60\xb0 from the LED light source is reflected by a first segment of the at least four contiguous segments of the reflector to angles between \u221230\xb0 and \u221250\xb0;
wherein at least a portion of the light emitted between \u221210\xb0 and +10\xb0 from the LED light source is reflected by a last segment of the at least four contiguous segments of the reflector to angles between \u2212130\xb0 and \u2212160\xb0, wherein the last segment crosses directly in front of the central axis of the LED;
wherein at least a portion of the light emitted between \u221220\xb0 and \u221270\xb0 from the LED light source is not reflected by the reflector.
2. The illumination source according to claim 1, wherein at least a portion of the light emitted between 0\xb0 and +90\xb0 from the LED light source is reflected by the reflector at an angle of approximately \u221290\xb0.
3. The illumination source according to claim 1, wherein the LED light source includes two illumination sources positioned at about 180\xb0 apart.
4. The illumination source according to claim 1, wherein the LED light source includes three or more illumination sources positioned at about 120\xb0 or less apart.
5. The illumination source according to claim 1, wherein the LED light source comprises an array of light emitting diodes positioned along a common plane.
6. The illumination source according to claim 1, wherein at least a portion of the reflector has a conic or conic-like shape.
7. The illumination source according to claim 6, wherein the conic or conic-like shape of the reflector has a shape selected from the group consisting of: a hyperbola; a parabola; an ellipse; a sphere; or a modified conic.
8. The illumination source according to claim 1, wherein reflecting surfaces of the reflector are revolved in a circle.
9. The illumination source according to claim 1, wherein reflecting surfaces of the reflector are extruded or projected linearly.
10. The illumination source according to claim 9, wherein the reflecting surfaces are projected along a conic or conic-like curve.
11. An illumination source comprising:
a light emitting diode (LED) light source, wherein an LED central axis is at 0\xb0;
a reflector, wherein the reflector comprises at least four contiguous segments;
wherein at least a portion of light emitted between 0\xb0 and +90\xb0 from the LED light source is reflected by a first segment of the at least four contiguous segments of the reflector to angles between \u221245\xb0 and \u221270\xb0, wherein the first segment crosses directly in front of the central axis of the LED;
wherein at least a portion of the light emitted between \u221210\xb0 and \u221240\xb0 from the LED light source is reflected by a last segment of the at least four contiguous segments of the reflector to angles between \u2212100\xb0 and \u2212130\xb0;
wherein at least a portion of the light emitted between \u221220\xb0 and \u221270\xb0 from the LED light source is not reflected by the reflector.
12. The illumination source according to claim 11, wherein at least a portion of the light emitted between 0\xb0 and +90\xb0 from the LED light source is reflected by the reflector at an angle of approximately \u221290\xb0.
13. The illumination source according to claim 11, wherein the LED light source includes two illumination sources positioned at about 180\xb0 apart.