Image capturing apparatus
First Claim
1. An image capturing apparatus comprising:
- a light guide plate having a first surface, a second surface opposite to the first surface and a plurality of third surfaces each connecting the first surface to the second surface;
a first light transmissive layer disposed on the first surface;
a second light transmissive layer disposed on the second surface, wherein the second light transmissive layer is overlapped with a light transfer region of the light guide plate in a normal direction of the light guide plate, and the second light transmissive layer is not overlapped with a light penetration region of the light guide plate in the normal direction;
a third light transmissive layer disposed on the second surface and overlapped with the light transfer region and the light penetration region in the normal direction, wherein a refractive index of the third light transmissive layer is higher than a refractive index of the first light transmissive layer and a refractive index of the second light transmissive layer, and a refractive index of the light guide plate is higher than the refractive index of the first light transmissive layer and the refractive index of the second light transmissive layer;
a light source located below the first surface or beside one of the third surfaces; and
an image capturing device located below the first surface.
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Accused Products
Abstract
An image capturing apparatus includes a light guide plate, a first light transmissive layer, a second light transmissive layer, a third light transmissive layer, a light source and an image capturing device. The light guide plate has a first surface and a second surface opposite to the first surface. The first light transmissive layer is disposed on the first surface. The second light transmissive layer is disposed on the second surface, wherein the second light transmissive layer is overlapped with a light transfer region of the light guide plate and not overlapped with a light penetration region of the light guide plate. The third light transmissive layer is disposed on the second surface and overlapped with the light transfer region and the light penetration region. Refractive indices of the third light transmissive layer and the light guide plate are higher than those of the first and second light transmissive layers.
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Citations
21 Claims
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1. An image capturing apparatus comprising:
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a light guide plate having a first surface, a second surface opposite to the first surface and a plurality of third surfaces each connecting the first surface to the second surface; a first light transmissive layer disposed on the first surface; a second light transmissive layer disposed on the second surface, wherein the second light transmissive layer is overlapped with a light transfer region of the light guide plate in a normal direction of the light guide plate, and the second light transmissive layer is not overlapped with a light penetration region of the light guide plate in the normal direction; a third light transmissive layer disposed on the second surface and overlapped with the light transfer region and the light penetration region in the normal direction, wherein a refractive index of the third light transmissive layer is higher than a refractive index of the first light transmissive layer and a refractive index of the second light transmissive layer, and a refractive index of the light guide plate is higher than the refractive index of the first light transmissive layer and the refractive index of the second light transmissive layer; a light source located below the first surface or beside one of the third surfaces; and an image capturing device located below the first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification