1. A high efficiency automotive LED optical system comprising:
a reflector having a reflective inner surface defining a cavity with an open end facing a field to be illuminated; the reflective surface including at least a parabolic reflector portion having a focal point;
an LED light source array positioned to emit light into said cavity and arrayed to project light horizontally about a lamp axis directed towards the field to be illuminated; the LED light source array including one or more LEDs arrayed horizontally, the LED light source array being positioned to span the focal point;
a light transmissive, refractive inner lens positioned axially and intermediate the LED light source array and the field to be illuminated; and positioned intermediate the reflector and the field to be illuminated;
wherein the inner lens is positioned to intercept less than all of the light emitted by the LED light source array;
wherein the reflector is positioned to intercept the remaining light emitted by the LED light source array;
the inner lens with a front optical surface having a vertical cross section, and a rear optical surface having a vertical cross section such that the lens refracts light received by the rear optical surface from the LED light source array and projected from the front optical surface to within plus or minus 4 degrees of a horizontal plane through the lamp;
the front optical surface having a horizontal cross section, and the rear optical surface having a horizontal cross section such that the lens refracts light received by the rear optical surface from the LED light source array and projected from the front optical surface spread horizontally from the axis; and
the reflector directs the remaining intercepted light from the LED light source array to provide a supplementary horizontal pattern.
2. The LED optical system of claim, 1 wherein the rear optical surface in horizontal cross section includes a central section, wherein the central section is horizontally straight, and has a horizontal extension equal to or greater than the horizontal extension of the LED light source array.
3. The LED optical system of claim, 2 wherein the rear optical surface in horizontal cross section includes an end section, wherein the end section is a section of a circle centered the horizontal midpoint between the end of the light source array and the perpendicularly projected functional end of the inner lens.
3. The LED optical system of claim, 2 wherein the rear optical surface in horizontal cross section includes an end section, wherein the end section is a B spline determined from a section of a circle centered the horizontal midpoint between the end of the light source array and the perpendicularly projected functional end of the inner lens.
4. The LED optical system of claim, 1 wherein the front optical surface in horizontal cross section includes a central section, wherein the central section is horizontally straight, and has a horizontal extension equal to or greater than the horizontal extension of the LED light source array.
5. The LED optical system of claim, 4 wherein the front optical surface in horizontal cross section includes an end section, wherein the end section is a section of a circle centered on the horizontal end point of the light source array.
6. The LED optical system of claim, 1 wherein the rear optical surface in vertical cross section includes a central section, wherein the central section includes a circular section centered on the LED light source array.
7. The LED optical system of claim, 6 wherein the rear optical surface includes an end section that in vertical cross section includes a section of a circle centered the end of the LED light source array.
8. The LED optical system of claim, 1 wherein the rear optical surface includes an end section that in horizontal cross section includes a section of a circle centered at the end of the LED light source array.
9. The LED optical system of claim, 1 wherein the front optical surface in vertical cross section includes a section of an ellipse having a focal point centered at the LED light source array.
10. The LED optical system of claim, 9 wherein the front optical surface includes an end section, wherein the end section in vertical cross section includes is a section of an ellipse with a focal point centered at the LED light source array, pivoted about the end of the LED light source array.
11. The LED optical system of claim 1, wherein the LED light source is an array of plural LED light sources.
12. The LED optical system of claim, wherein the inner lens substantially refracts light received from the LED light source array to be substantially on one side of a horizontal plane through the lamp.
13. The LED optical system of claim 1, wherein the inner lens substantially spreads light received from the LED light source array horizontally to be parallel to or below a horizontal plain through the lamp.
14. The LED optical system of claim 1, wherein the inner lens is a circular cylinder with a lens axis horizontally aligned.
15. The LED optical system of claim 1, wherein the inner lens is a circular cylinder with a lens axis horizontally aligned and arced in the horizontal.
16. The LED optical system of claim 1, wherein the inner lens is a circular cylinder with a lens axis horizontally aligned and transverse to the lamp axis.
17. The LED optical system of claim 1, wherein the reflector surrounds the inner lens and is offset from the inner lens to provide an optical gap between the inner lens and the reflector through which light emitted by the LED light source array and reflected by the reflector passes.
18. The LED optical system of claim 1, wherein the reflector is shaped to project light emitted by the LED light source array and intercepted by the reflector in a pattern different from the pattern formed by the inner lens.
19. The LED optical system of claim 1, wherein the reflector is shaped to project light emitted by the LED light source array and intercepted by the reflector in a headlamp hot spot pattern.
20. The LED optical system of claim 1, wherein the reflector includes a reflective portion having the form of a section of a paraboloid of revolution.
21. The LED optical system of claim 1, wherein reflector portion having the form of a section of a paraboloid of revolution defines a foci, and the LED light source array is located adjacent the foci.
22. The LED optical system of claim 1, wherein reflector portion having the form of a section of a paraboloid of revolution defines a reflector axis, and the lamp axis parallels the reflector axis.
23. A high efficiency automotive LED optical system comprising:
a reflector having a reflective inner surface defining a cavity with an open end facing a field to be illuminated;
an LED light source array being an array of plural LED light source arrays positioned to emit light into said cavity and arrayed to project light horizontally along a lamp axis direction towards the field to be illuminated;
the LED light source array emitting light with a distribution about the axis;
a light transmissive, refractive inner lens positioned axially and intermediate the LED light source array and the field to be illuminated; and positioned intermediate the reflector and the field to be illuminated;
wherein the inner lens is sized to intercept less than all of the light emitted by the LED light source array;
the inner lens substantially refracts light received from the LED light source array to be substantially in or on one side of a horizontal plane through the axis;
the inner lens having a front surface with a central section horizontally spanning the LED light source array, and having a vertical cross section including a section of an ellipse with a focal point centered on the LED light source array, the front surface having a side section that in horizontal cross section includes a section of a circular arc centered on an end of the LED light source array;
the inner lens having a rear surface with a central section horizontally spanning the LED light source array, and having a vertical cross section including a section of a circular arc centered on the LED light source array, the rear surface having a side section that in horizontal cross section includes a section of a circular arc centered on an end of the LED light source array;
the reflector surrounds the inner lens and is offset from the inner lens to provide an optical gap between the inner lens and the reflector through which light emitted by the LED light source array and reflected by the reflector passes
wherein the reflector is sized to intercept less than all of the light emitted by the LED light source array;
the reflector is shaped to project light emitted by the LED light source array and intercepted by the reflector in a pattern different from the pattern formed by the inner lens;
wherein the reflector surrounds the inner lens and is offset from the inner lens to provide an optical gap between the inner lens and the reflector through which light emitted by the LED light source array and reflected by the reflector passes; and
reflector portion having the form of a paraboloid of revolution defines a foci, and the LED light source array is located adjacent the foci.
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. A facial processing method comprising the steps of:
receiving a two dimensional facial image; and
combining the two dimensional facial image and a standard three dimensional facial image to create a three dimensional facial image.
2. The facial processing method of claim 1, further comprising the step of creating the standard three dimensional facial image.
3. The facial processing method of claim 2, wherein the step of creating a standard three dimensional facial image includes the steps of:
receiving a plurality of three dimensional facial images; and
combining the plurality of three dimensional facial images to create the standard three dimensional facial image.
4. The facial processing method of claim 1, wherein the combining step includes the steps of:
combining the two dimensional facial image and standard three dimensional facial image to create a first intermediate three dimensional facial image;
rendering a first intermediate two dimensional facial image based upon the first intermediate three dimensional facial image;
comparing the first intermediate two dimensional facial image to the two dimensional facial image; and
modifying the first intermediate three dimensional facial image based upon results of the comparison step.
5. The facial processing method of claim 4, wherein the combining step further includes the step of repeating the rendering, comparing and modifying steps a plurality of times.
6. The facial processing method of claim 4, further comprising the steps of:
adjusting a pose of the three dimensional facial image; and
rendering a final two dimensional image from the adjusted three dimensional facial image.
7. The facial processing method of claim 4, further comprising the steps of:
rendering a final two dimensional image from the three dimensional facial image according to a selected lighting.
8. A facial identification method comprising the steps of:
receiving a two dimensional facial image;
creating a three dimensional facial image from the two dimensional facial image;
adjusting a pose of the three dimensional facial image;
rendering an adjusted two dimensional facial image from the adjusted three dimensional facial image; and
comparing the rendered two dimensional facial image to at least one stored two dimensional facial image to determine a match.
9. The facial identification method of claim 8, wherein the comparing step includes:
comparing the rendered two dimensional image to a plurality of stored two dimensional facial images to determine a closest match.
10. The facial identification method of claim 8, wherein the step of creating a three dimensional facial image includes the step of combining the two dimensional facial image and a standard three dimensional facial image to create a three dimensional facial image.
11. The facial identification method of claim 10, further comprising the step of creating the standard three dimensional facial image.
12. The facial identification method of claim 11, wherein the step of creating the standard three dimensional facial image includes the steps of:
receiving a plurality of three dimensional facial images; and
combining the plurality of three dimensional facial images to create the standard three dimensional facial image.
13. A system for identifying in individual comprising:
a camera for acquiring a two dimensional facial image;
means for creating a three dimensional facial image from the two dimensional facial image;
means for adjusting the three dimensional facial image;
means for rendering a final two dimensional image from the adjusted three dimensional image; and
means for comparing the final two dimensional image to at least one stored two dimensional image to determine a match.
14. The system for identifying an individual according to claim 13, further comprising:
a database of stored two dimensional images; and
wherein the means for comparing includes means for comparing the final two dimensional image to at least one stored two dimensional image in the database of stored two dimensional images.
15. The system for identifying an individual according to claim 14, wherein the means for comparing includes means for comparing the final two dimensional image to a plurality of stored two dimensional images in the database to determine a closest match.
16. The system for identifying an individual according to claim 13, wherein the means for adjusting includes means for changing a pose of the three dimensional facial image.
17. The system for identifying an individual according to claim 13, wherein the means for rendering includes means for rendering the final two dimensional facial image based upon a selected lighting.
18. The system for identifying an individual according to claim 13, wherein the means for creating a three dimensional facial image includes:
means for combining the two dimensional facial image with a standard three dimensional facial image to create an intermediate three dimensional facial image; and
means for rendering an intermediate two dimensional facial image from the intermediate three dimensional facial image;
means for comparing the intermediate two dimensional facial image to the two dimensional facial image; and
means for adjusting the intermediate three dimensional facial image based upon results of the comparison of the intermediate two dimensional facial image to the two dimensional facial image.
19. A system for creating a three dimensional facial image from a two dimensional facial image comprising:
a memory storing a standard three dimensional facial image; and
means for combining the two dimensional facial image and the standard three dimensional facial image to create the three dimensional facial image.
20. The system for creating a three dimensional facial image from a two dimensional facial image according to claim 19, wherein the means for combining includes: means for combining the two dimensional facial image with a standard three dimensional facial image to create an intermediate three dimensional facial image; and
means for rendering an intermediate two dimensional facial image from the intermediate three dimensional facial image;
means for comparing the intermediate two dimensional facial image to the two dimensional facial image; and
means for adjusting the intermediate three dimensional facial image based upon results of the comparison of the intermediate two dimensional facial image to the two dimensional facial image.