PATENT CLAIM ANALYSIS

Application Number: 15763571
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["351", "159440"]

Abstract:
A diffractive multi-focal ophthalmic lens includes a novel structure and manufacturing method in which improvement in optical characteristics such as halo reduction is obtained. A diffractive multi-focal ophthalmic lens in which a plurality of focal points are set by a diffraction grating including a blaze shaped phase function in which a plurality of zone sequences are overlapped, wherein adopted is a structure expressed by a phase function in which an inclination of a blaze of a specific adjustment zone in a standard profile is reversed.

Claim (Index 2):
A diffractive multi-focal ophthalmic lens for which a diffraction grating comprising a blaze shaped phase function is configured by a plurality of concentric zones for which a plurality of zone sequences with a zone radius given by Equation 2 are overlapped such that a plurality of focal points are set, wherein\n at least one of the zones configuring the diffraction grating, the zone having a zone area S that satisfies S\u22640.5\u00d7S max  with respect to a zone area S max  for a maximum area zone having a maximum zone area among the plurality of concentric zones, serves as an adjustment zone and, in the adjustment zone, a blaze shaped phase function for which an inclination is reversed with respect to an inclination of the blaze shaped phase function in the maximum area zone is set. r n = r 1 2 + 2 \ue89e ( n - 1 ) \ue89e \u03bb P [ Equation \ue89e \ue89e 2 ] r n : nth zone radius of a certain zone sequence r 1 : 1st zone radius of the zone sequence n: Natural number P: Addition power based on 1st order diffracted light of the zone sequence \u03bb: Design wavelength

Metadata:
- Claim Count in Document: 41.0
- Percentile: 90.0
- Lexical Diversity: 1.69231
- Patent Class: 351.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15500589', '14377819', '14377029', '12625364', '09032954']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6246056872981066
- 35 USC 102 Novelty (BERT): 0.536322203748413
- Combined Prediction Score: 0.6157773389431372
- Mean Citation Score: 346.612148
- Max Citation Score: 424.14484
- Similarity Product: 309.92218632548816

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