PATENT CLAIM ANALYSIS

Application Number: 16196530
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["355", "071000"]

Abstract:
The illumination optical system for illuminating an illumination target surface with light from a light source is provided with a polarization converting member which converts a polarization state of incident light to form a pupil intensity distribution in a predetermined polarization state on an illumination pupil of the illumination optical system; and a phase modulating member which is arranged in the optical path on the illumination target surface side with respect to the polarization converting member and which transmits light from the pupil intensity distribution so as to convert linearly polarized light thereof polarized in a first direction, into required elliptically polarized light and maintain a polarization state of linearly polarized light polarized in a second direction (X-direction or Y-direction) obliquely intersecting with the first direction, in order to reduce influence of retardation caused by a subsequent optical system between the polarization converting member and the illumination target surface.

Claim (Index 37):
The illumination optical system according to  claim 36 , wherein\n the polarization member is arranged so that the first illumination light and the second illumination light, out of the illumination light entering at the polarization member in a linear polarization state having a polarization direction corresponding to a predetermined direction, pass through the optical material in mutually different lengths along a direction of the optical axis of the optical material.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 98.0
- Lexical Diversity: 2.15278
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15390127', '13161877', '14563275', '15424085', '14124034']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7561630290990162
- 35 USC 102 Novelty (BERT): 0.5672945339734294
- Combined Prediction Score: 0.7372761795864575
- Mean Citation Score: 429.425554
- Max Citation Score: 487.9968
- Similarity Product: 394.26687292041777

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