PATENT CLAIM ANALYSIS

Application Number: 16364351
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["356", "520000"]

Abstract:
A wavefront measuring device and method obtain wavefront information of an optical system. The method including: irradiating the optical system with a light beam; allowing the light beam passed via the optical system to come into a diffraction grating having periodicity in a first direction; and obtaining the wavefront information based on an interference fringe formed by light beams generated from the diffraction grating. The diffraction grating including: first portions which allow light to pass therethrough; and second portions which shield light, each of the second portions being provided between two of the first portions. A ratio between a width of one of the first portions in the first direction and a width of one of the second portions in the first direction is changed in the first direction, the one of the first portions and the one of the second portions being adjacent to each other.

Claim (Index 5):
The method according to  claim 4 , wherein the diffraction grating has, in the first direction, a first area and a second area, the first area being an area in which the first portions allowing the light to pass therethrough and the second portions shielding the light are alternately arranged in the first direction such that the N-pairs of first and second portions are arranged in the first direction within a width corresponding to one period of the periodicity, the second area being an area in which the third portions allowing the light to pass therethrough and the fourth portions shielding the light are alternately arranged in the first direction such that N1-pairs (N1 being an integer not less than 2 and different from N) of third and fourth portions are arranged in the first direction within the width corresponding to one period of the periodicity.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 99.0
- Lexical Diversity: 2.39394
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14401860', '10964868', '11364600', '12716730', '09792607']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.747288985796766
- 35 USC 102 Novelty (BERT): 0.5568253197007558
- Combined Prediction Score: 0.7282426191871649
- Mean Citation Score: 307.054126
- Max Citation Score: 451.001
- Similarity Product: 334.0195618577004

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

Dataset: test