Diffuser panel and optical apparatus which uses this diffuser panel
First Claim
Patent Images
1. A diffuser panel comprising:
- a base panel portion and;
a micro lens portion which is arranged on a surface of said base panel portion and has a plurality of micro lenses,wherein each of said plurality of micro lenses have outer circumferential shapes which have angles in a numbers of (2n+1), andwherein a number of predetermined micro lenses have an outer circumferential shape having angles in the numbers of (2n+1) at any one value of n is not smaller than half a total number of said micro lenses,where n represents an integer of 2 or larger.
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Abstract
A diffuser panel having a plurality of micro lenses arranged on a surface of a substrate, a half or more of these micro lenses are in a shape which has (2n+1) angles. This diffuser panel provides rays which are uniformly diffused within a diffusion area and a light amount distribution which changes smoothly. This diffuser panel provides a bright image having a naturally blurred impression when the diffuser panel is used as a focusing panel of an optical apparatus.
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Citations
21 Claims
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1. A diffuser panel comprising:
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a base panel portion and; a micro lens portion which is arranged on a surface of said base panel portion and has a plurality of micro lenses, wherein each of said plurality of micro lenses have outer circumferential shapes which have angles in a numbers of (2n+1), and wherein a number of predetermined micro lenses have an outer circumferential shape having angles in the numbers of (2n+1) at any one value of n is not smaller than half a total number of said micro lenses, where n represents an integer of 2 or larger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18)
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11. A diffuser panel comprising:
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a base panel portion and; a micro lens portion which is arranged on a surface of said base panel portion and has a plurality of micro lenses, wherein each of the plurality of micro lenses has an outer circumferential shape which has angles in numbers of n, wherein a number of predetermined micro lenses which have an outer shape having angles in the numbers of n at any one value of n is not smaller than half a total number of said micro lenses and wherein one side of the predetermined micro lenses does not intersect orthogonally with a virtual line connecting vertices of optional two of the predetermined micro lenses where n represents an integer of 5 or larger. - View Dependent Claims (13, 14)
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12. A diffuser panel comprising:
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a base panel portion and; a micro lens portion which is arranged on a surface of said base panel portion and has a plurality of micro lenses, wherein each of said plurality of micro lenses have outer circumferential shares which have angles in numbers of n and wherein a number of predetermined micro lenses have an outer circumferential shape which have angles in the numbers of n at any one value of n is not smaller than half a total number of said plurality of micro lenses and wherein the predetermined micro lenses includes first micro lenses and second micro lenses, some micro lenses of the second micro lenses are in contact with one micro lens of the first micro lenses with side respectively, and wherein virtual lines which connect vertices of the one micro lens of the first micro lenses and the some of micro lens of the second micro lenses respectively are not in parallel with one another, where n represents an integer of 5 or larger.
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19. A diffuser panel comprising:
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a base panel portion and; a micro lens portion which is arranged on a surface of said base panel portion and has a plurality of micro lenses, wherein each of said plurality of micro lenses has an outer circumferential shape which has angles in numbers of n, wherein a number of predetermined micro lenses which have an outer circumferential shape having angles in a number of n at any one value of n is not smaller than half a total number of said micro lenses, and wherein each of said predetermined micro lenses has one side which length is different from other sides, where n represents an integer of 5 or larger. - View Dependent Claims (20, 21)
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Specification