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 30):
An optical device comprising:\n (a) a lightguide having:\n (i) a first pair of external surfaces parallel to each other, and \n (ii) at least two sets of facets, each of said sets:\n (A) including a plurality of partially reflecting facets parallel to each other, and \n (B) between said first pair of external surfaces, and \n \n (b) wherein in each of said sets of facets, the respective facets are:\n (i) at an oblique angle relative to said first pair of external surfaces, and \n (ii) non-parallel relative to another of said sets of facets, \n (c) a coupling-in arrangement configured to guide light into said lightguide such that said light propagates via internal reflection of said first pair of external surfaces along the lightguide in a propagation direction with a first in-plane component, and\n wherein in one of said sets of facets, the respective facets are orientated to deflect part of the light to be guided by internal reflection of said lightguide to propagate along said lightguide with a propagation direction with a second in-plane component non-parallel to said first in-plane component.

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): 0.800738523192032
- 35 USC 102 Novelty (BERT): 0.4859608974680088
- Combined Prediction Score: 0.7692607606196297
- Mean Citation Score: 207.437276
- Max Citation Score: 253.64296
- Similarity Product: 192.4786177420616

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

Dataset: test