Window system and light guiding film therein
First Claim
Patent Images
1. A light guiding film comprising:
- a film base, having a first side and a second side opposite the first side; and
at least one microstructure, disposed on the second side of the film base, the refraction index of the at least one microstructure is 1.9 to 2.6, the at least one microstructure having a first surface and a second surface above the first surface, wherein a first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, a second inclination angle is between the second surface and the reference plane, wherein the value of the first inclination angle is less than or equal to the value of the second inclination angle,wherein the sum of the value of the first inclination angle and the value of the second inclination angle is between 63 to 87 degrees.
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Abstract
The present invention relates to a window and light guiding film therein. The light guiding film includes a film base and at least one microstructure. The microstructure is disposed on a side of the film base, and comprises a first surface and a second surface. The refraction index of the microstructure is 1.9 to 2.6. A first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, and a second inclination angle is between the second surface and the reference plane, wherein the first inclination angle is less than or equal to the second inclination angle.
24 Citations
14 Claims
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1. A light guiding film comprising:
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a film base, having a first side and a second side opposite the first side; and at least one microstructure, disposed on the second side of the film base, the refraction index of the at least one microstructure is 1.9 to 2.6, the at least one microstructure having a first surface and a second surface above the first surface, wherein a first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, a second inclination angle is between the second surface and the reference plane, wherein the value of the first inclination angle is less than or equal to the value of the second inclination angle, wherein the sum of the value of the first inclination angle and the value of the second inclination angle is between 63 to 87 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A window system comprising:
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a first plate; a second plate, fixed to the first plate; and a light guiding film, disposed in an accommodating space between the first plate and the second plate, and comprising; a film base, having a first side and a second side opposite the first side; and at least one microstructure, disposed on the second side of the film base, the refraction index of the at least one microstructure is 1.9 to 2.6, the at least one microstructure having a first surface and a second surface above the first surface, wherein a first inclination angle is between the first surface and a reference plane, the reference plane is perpendicular to the film base, a second inclination angle is between the second surface and the reference plane, wherein the value of the first inclination angle is less than or equal to the value of the second inclination angle, wherein the sum of the value of the first inclination angle and the value of the second inclination angle is between 63 to 87 degrees. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification