PATENT CLAIM ANALYSIS

Application Number: 15956887
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["359", "485030"]

Abstract:
Integral optical stacks and optical systems including the integral optical stack are described. The integral optical stack may include first and second lenses, a partial reflector, a reflective polarizer curved about two orthogonal axes, and a quarter wave retarder. The reflective polarizer is curved about two orthogonal axes and includes at least one layer that is substantially optically biaxial at at least one first location on the at least one layer away from an optical axis of the optical stack and substantially optically uniaxial at at least one second location away from the optical axis.

Claim (Index 7):
The optical stack of  claim 1 , wherein the at least one layer of the reflective polarizer at the at least one second location has a first refractive index in a thickness direction, a second refractive index in a second direction orthogonal to the thickness direction, and a third refractive index in a third direction orthogonal to the thickness direction and to the second direction, an absolute value of a difference in the first and second refractive indices being less than 0.02, an absolute value of a difference in the second and third refractive indices being greater than 0.05.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.02
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15787862', '15786810', '14865439', '14865031', '14865063']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.869077492577606
- 35 USC 102 Novelty (BERT): 0.5810268791619618
- Combined Prediction Score: 0.8402724312360417
- Mean Citation Score: 430.56886
- Max Citation Score: 438.78134000000006
- Similarity Product: 321.6955755594301

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