1. A light emitting device comprising:
a substrate;
a plurality of light sources arranged on said substrate and each having a light exit surface;
a wavelength converter configured to convert light from a first wavelength to a second wavelength, said wavelength converter having a light exit surface and a light entrance surface extending in an angle different from zero to one another; and
an optical coupling element, arranged between and in contact with said light exit surfaces of said plurality of light sources and said light entrance surface of said wavelength converter, and configured to couple light from said plurality of light sources to said wavelength converter;
wherein at least a major portion of the surface of said wavelength converter, other than said light exit surface and said light entrance surface, has a surface roughness, RA, less than 100 nm.
2. The light emitting device according to claim 1, wherein at least said major portion of said surface of said wavelength converter comprises a coating having a surface roughness, RA, less than 10 nm and a refractive index substantially similar to a refractive index of said wavelength converter.
3. The light emitting device according to claim 2, wherein said coating comprises silicon oxynitride.
4. The light emitting device according to claim 1, wherein said wavelength converter has a refractive index higher than said refractive index of said optical coupling element.
5. The light emitting device according to claim 4, wherein said refractive index of said optical coupling element is in the range of 1.0-1.7, and said refractive index of said wavelength converter is in the range of 1.5-2.0.
6. The light emitting device according to claim 1, further comprising at least one reflecting element, arranged facing, and at a distance from, at least a surface of said wavelength converter opposite said light exit surface of said wavelength converter.
7. The light emitting device according to claim 6, wherein said at least one reflecting element is arranged at a distance from said wavelength converter larger than said first and second wavelength.
8. The light emitting device according to claim 1, wherein said wavelength converter is shaped such that said light exit surface is larger than said opposite surface.
9. The light emitting device according to claim 8, wherein said wavelength converter is shaped as a wedge or frustum.
10. Thew light emitting device according to claim 1, further comprising a heat conducting element, arranged adjacent to and at a distance to at least one surface of said wavelength converter other than said light exit surface.
11. The light emitting device according to claim 10, wherein said heat conducting element is thermally coupled to said substrate.
12. The light emitting device according to claim 10, wherein at least one reflecting element is arranged on said heat conducting element facing said wavelength converter.
13. The light emitting device according to claim 1, wherein said heat conducting element is thermally coupled to external cooling means.
14. (canceled)
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 computer-implemented method for proactively creating a photo product, comprising:
receive a group of images from one or more user devices;
automatically analyzing image capture times and image capture locations of the images by a computer processor;
automatically identifying an event based on the image capture times and image capture locations of the images;
selecting images taken at the event that are above a quality threshold to form a set of selected images;
automatically creating a design of a photo product using the selected images for the event; and
sharing a design of the photo product with one or more user devices.
2. The computer-implemented method of claim 1, further comprising:
automatically selecting images taken at the event that are above a quality threshold to form a set of selected images;
automatically selecting a photo product type in part based on the number of selected images; and
automatically placing the selected images in a layout of a photo product of the selected photo product type to create the design of a photo product.
3. The computer-implemented method of claim 1, further comprising:
automatically selecting a photo product type in part based on the event; and
automatically placing the selected images in a layout of a photo product of the selected photo product type to create the design of a photo product.
4. The computer-implemented method of claim 1, further comprising:
automatically identifying an organizer for the event;
automatically selecting a photo product type in part based on the organizer; and
automatically placing the selected images in a layout of a photo product of the selected photo product type to create the design of a photo product.
5. The computer-implemented method of claim 4, further comprising:
determining or establishing a partnership with the organizer; and
automatically selecting a photo product type in part based on the partnership with the organizer.
6. The computer-implemented method of claim 1, wherein the design of a photo product is created without receiving a user’s request.
7. The computer-implemented method of claim 1, wherein the quality threshold comprises one or more of color balance, light exposure, image tone, image sharpness including blurriness, image pixel values, image composition, faces in the images taken at the event.
8. The computer-implemented method of claim 1, wherein the image capture times and image capture locations of the images are automatically analyzed by the computer processor in parallel while the group of images are received from one or more user devices.
9. The computer-implemented method of claim 1, wherein the images are received from the one or more user devices over a computer network.
10. The computer-implemented method of claim 1, wherein the step of automatically creating a design of a photo product comprises:
automatically placing the selected images in a layout of a photo product of the selected photo product type to create the design of a photo product.
11. The computer-implemented method of claim 1, wherein the step of automatically creating a design for a photo product comprises:
assigning at least a portion of the selected images into a first page group and a second page group each comprising one or more images;
placing the first page group of one or more images in the first page of the photo product; and
placing the second page group of one or more images in the second page of the photo product.
12. The computer-implemented method of claim 1, wherein the step of automatically creating a design for a photo product further comprises:
automatically selecting a first page layout from a library of page layouts, wherein the first page group of one or more images are placed in the first page according to the first page layout; and
automatically selecting a second page layout from the library of page layouts, wherein the second page group of one or more images are placed in the second page according to the second page layout.
13. The computer-implemented method of claim 12, wherein at least two selected images are separated into the first page group and the second page group based on capture times of the two selected images.
14. The computer-implemented method of claim 13, wherein the two selected images are placed on a same page if the two images were captured within a predetermined period of time.
15. The computer-implemented method of claim 13, wherein the two selected images are placed on different pages if the two images were captured within a predetermined period of time.
16. The computer-implemented method of claim 12, wherein at least two selected images are separated into the first page group and the second page group based on color content of the two selected images.
17. The computer-implemented method of claim 16, wherein the two selected images are placed on a same page if popular colors in the two images are within a predetermined distance in a color space.
18. The computer-implemented method of claim 16, wherein the two selected images are placed on a different page if popular colors in the two images are within a predetermined distance in a color space.
19. The computer-implemented method of claim 12, wherein at least two selected images are separated into the first page group and the second page group based on image-capture locations of the two selected images.