PATENT CLAIM ANALYSIS

Application Number: 15978139
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-07
Patent Classification: ["359", "798000"]

Abstract:
An optical device includes a lightguide having a first pair of external surfaces parallel to each other, and at least two sets of facets. Each of the sets including a plurality of partially reflecting facets parallel to each other, and between the first pair of external surfaces. In each of the sets of facets, the respective facets are at an oblique angle relative to the first pair of external surfaces, and at a non-parallel angle relative to another of the sets of facets. The optical device is particularly suited for optical aperture expansion.

Claim (Index 23):
A method of producing an optical device, the optical device comprising a lightguide ( 16 ) having:\n (i) at least two sets of facets ( 32 ,  36 ) between a first pair of external surfaces ( 22 ,  24 ), (ii) said external surfaces ( 22 ,  24 ) parallel to each other, (iii) each of said sets of facets ( 32 ,  36 ) including a plurality of partially reflecting facets parallel to each other, and wherein in each of said sets of facets ( 32 ,  36 ), the respective facets are at an oblique angle relative to said first pair of external surfaces ( 22 ,  24 ), and non-parallel to another of said sets of facets ( 32 ,  36 ), the method comprising: (a) providing a first array ( 52 ) of partially reflecting facets, (b) providing a second array ( 56 ) of partially reflecting facets, and (c) optically attaching said first array ( 52 ) and said second array ( 56 ) such that said facets of said first array ( 32 ) and said facets of said second array ( 36 ) are at an oblique angle relative to said first pair of external surfaces ( 22 ,  24 ), and non-parallel to each other.

Metadata:
- Claim Count in Document: 62.0
- Percentile: 93.0
- Lexical Diversity: 2.14894
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15951171', '15749511', '14711562', '11883574', '15559093']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8002850591767846
- 35 USC 102 Novelty (BERT): 0.4892210211790406
- Combined Prediction Score: 0.7691786553770102
- Mean Citation Score: 207.437276
- Max Citation Score: 253.64296
- Similarity Product: 183.47350905041213

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

Dataset: test