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US 2022/0035094 A1Published application
Optical waveguide unit, array, and flat lens
AssigneeAnhui Easpeed Technology Co., Ltd.
InventorsChao FAN, Dongcheng HAN
Life of this patent
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Abstract
An optical waveguide unit, an optical waveguide array including optical waveguide units, and a flat lens including optical waveguide arrays. The optical waveguide unit includes: at least one group of total reflection layers, each group including at least one type of total reflection layer, and each type of total reflection layer including at least one single total reflection layer; and at least two sub-waveguides, one group being arranged between every two adjacent sub-waveguides.
Claims20
An optical waveguide unit, comprising:
- at least one group of total reflection layers, each group comprising at least one type of total reflection layer, and each type of total reflection layer comprising at least one single total reflection layer;
- and
- at least two sub-waveguides, one group being arranged between every two adjacent sub-waveguides.
An optical waveguide array comprising:
- a plurality of optical waveguide units, each optical waveguide unit having a rectangular cross section, and the plurality of optical waveguide units being joined in parallel;
- an outer contour of the optical waveguide array is rectangular, and an extending direction of the optical waveguide units and at least two sides of the outer contour of the optical waveguide array form an angle of 30 to 60 degrees,
- wherein each optical waveguide unit comprises:
- at least one group of total reflection layers, each group comprising at least one type of total reflection layer, and each type of total reflection layer comprising at least one single total reflection layer;
- and
- at least two sub-waveguides, one group being arranged between every two adjacent sub-waveguides.
3 more elements
A flat lens, comprising:
- two transparent substrates, each transparent substrate having two optical surfaces;
- and
- two optical waveguide arrays, the two optical waveguide arrays being arranged between the two transparent substrates by means of glue, and optical waveguide extending directions of the two optical waveguide arrays being arranged orthogonally,
- wherein each optical waveguide array comprises a plurality of optical waveguide units, each optical waveguide unit having a rectangular cross section, and the plurality of optical waveguide units being joined in parallel;
- an outer contour of the optical waveguide array is rectangular, and an extending direction of the optical waveguide units and at least two sides of the outer contour of the optical waveguide array form an angle of 30 to 60 degrees;
- wherein each optical waveguide unit comprises:
- at least one group of total reflection layers, each group comprising at least one type of total reflection layer, and each type of total reflection layer comprising at least one single total reflection layer;
- and
- at least two sub-waveguides, one group being arranged between every two adjacent sub-waveguides.
6 more elements
Dependencies are inferred from the claim text.