Optical coupling circuit element
First Claim
1. An optical coupling circuit element for collimating an emitting beam from a coherent source to direct the light to an optical communication means, comprising:
- one transparent substrate;
a first micro Fresnel lens formed on one side surface of said substrate; and
a second micro Fresnel lens formed on the other side surface of said substrate, so that coherent light that is directed into said first micro Fresnel lens is projected through said transparent substrate on said micro Fresnel lens to exit therefrom as a collimating beam.
1 Assignment
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Accused Products
Abstract
An optical coupling circuit element providing one transparent substrate, a first micro Fresnel lens formed on one side surface of said substrate, and a second micro Fresnel lens formed on the other side surface of said substrate, so that coherent light incident into said first micro Fresnel lens is projected, through said transparent substrate, on said second micro Fresnel lens to be left therefrom as a collimating beams, which is useful for directing light emitted from coherent source such as semi-conductor laser to optical communication means such as optical fiber for condensation.
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Citations
22 Claims
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1. An optical coupling circuit element for collimating an emitting beam from a coherent source to direct the light to an optical communication means, comprising:
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one transparent substrate; a first micro Fresnel lens formed on one side surface of said substrate; and a second micro Fresnel lens formed on the other side surface of said substrate, so that coherent light that is directed into said first micro Fresnel lens is projected through said transparent substrate on said micro Fresnel lens to exit therefrom as a collimating beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. An optical coupling circuit element for collecting an outgoing light from a coherent source to direct the light to an optical communication means, comprising one transparent substrate, a first micro Fresnel lens formed on one side surface of said substrate, a reflective mirror formed on the other side surface of said substrate and a second micro Fresnel lens formed in parallel to said first micro Fresnel lens on said one side of said substrate, so that a coherent light incident into said first micro Fresnel lens is projected through said transparent substrate to said reflective mirror, changed in direction by said mirror, and passes through said substrate again to reach said second micro Fresnel lens so as to be left therefrom as a collimating beam.
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18. An optical coupling circuit element for collimating a light beam emitted from a light source in order to direct the light to an optical communication apparatus comprising:
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a single transparent substrate having a first and second side surface; a first Fresnel lens formed on a first side surface of said substrate; and a second Fresnel lens formed on a second side surface of said substrate.
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19. An optical coupling circuit element for collecting light from a light source in order to direct the light to an optical communication device comprising:
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a single transparent substrate having a first and second substrate side surface; a first and second Fresnel lens formed on the first substrate side surface; and a reflective mirror formed on the second substrate side surface.
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20. The method of focusing a light beam emitted from a light source to an optical communication device comprising the steps of:
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(a) emitting light from the light source; (b) directing the light to an optical element that is transparent and has two side surfaces, each of the side surfaces containing a Fresnel lens; (c) passing the light through a first Fresnel lens; (d) passing the light through the substrate; and (e) passing the light through a second Fresnel lens so that the light will come in contact with the optical communication device.
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21. The method of passing and focusing light from a light source to an optical device comprising the steps of:
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(a) providing a transparent substrate having two side surfaces, a first side surface containing two Fresnel lenses, the second side surface containing a mirror; (b) emitting light from said light source so that it passes through a first Fresnel lens and the transparent substrate; (c) reflecting the light from step (b) from the mirror; (d) passing the light through a second Fresnel lens; and (e) that the light can come in contact with an optical communication device.
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22. An optical coupling circuit element for directing light from a coherent source to an optical communication means, comprising:
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a transparent substrate having a first and second side surface; a first micro Fresnel lens formed on a first side surface of said substrate; a reflective mirror formed on the second side surface of said substrate; and a second micro Fresnel lens formed in parallel to said first micro Fresnel lens on said first side of said substrate, so that coherent light that is directed into said first micro Fresnel lens is projected through said transparent substrate to said reflective mirror where the light is reflected and passes through said substrate again to reach said second micro Fresnel lens so as to exist therefrom as a collimating beam.
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Specification