PATENT CLAIM ANALYSIS

Application Number: 16103113
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-01
Patent Classification: ["385", "037000"]

Abstract:
An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide ( 12 ) and three linear diffraction grat-ings H 0,  H 1,  H 2.  An incident beam from a projector illuminates an input grating H 0  with polychromatic light, and the light is coupled into the waveguide ( 12 ). The other two gratings H 1,  H 2  are overlaid on top of one another. Light can be diffracted by one grating H 1  into a first diffracted order and towards the other grating H 2  which can couple the light out of the waveguide ( 12 ) towards a viewer. In another arrangement the crossed gratings H 1,  H 2  may be replaced by a photonic crystal ( 19 ) having a regular array of pillars ( 20 ) which create a number effective diffraction gratings.

Claim (Index 1):
An optical device for expanding input light in two dimensions in an augmented reality display, comprising:\n a waveguide; an input diffractive optical element configured to couple input light into the waveguide; and two diffractive optical elements entirely overlaid on one another in or on the waveguide, wherein each of the two diffractive optical elements is configured to receive light from the input diffractive optical element and couple it towards the other diffractive optical element which can then act as an output diffractive optical element providing outcoupled orders towards a viewer.

Metadata:
- Claim Count in Document: 25.0
- Percentile: 96.0
- Lexical Diversity: 1.95122
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15329557', '15149115', '15683702', '09991371', '10186684']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7731443107283377
- 35 USC 102 Novelty (BERT): 0.4924774772047788
- Combined Prediction Score: 0.7450776273759818
- Mean Citation Score: 190.445666
- Max Citation Score: 272.84354
- Similarity Product: 263.18857758618594

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test