PATENT CLAIM ANALYSIS

Application Number: 15990106
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["351", "159750"]

Abstract:
A computer-implemented method for providing a lens shape for an ophthalmic lens is disclosed. Further, there is provided a method for angular smoothing of a surface determined by carrier lines radially outwards of a prescription zone bordered by a first boundary line. In addition, there is provided an ophthalmic lens, in particular, a spectacle lens. Moreover, a method for minimizing the difference in thickness between two ophthalmic lenses for the same spectacles is provided. A computer program product and a machine-readable storage medium are provided as well.

Claim (Index 24):
A computer-implemented method for providing a lens shape for an ophthalmic lens, the method comprising:\n a) providing a predetermined lens shape of an ophthalmic lens having a front surface and a back surface, wherein the predetermined lens shape includes a predetermined shape of the front surface and a predetermined shape of the back surface within a prescription zone of the back surface bordered by a first boundary line, such that the ophthalmic lens satisfies predetermined optical properties within the prescription zone; b) determining a carrier point on the back surface within the prescription zone and a plurality of carrier lines each extending from the carrier point into a respective direction; c) determining a transition zone of the back surface, wherein the transition zone extends radially outwards from the first boundary line towards the outer edge of the ophthalmic lens and ends at a second boundary line bordering the transition zone radially outwards; d) for each carrier line, setting a desired constant curvature gradient in the transition zone; e) for each carrier line, determining a curvature profile of the back surface between the first boundary line and an outer edge the ophthalmic lens along the carrier line, wherein the curvature profile in the transition zone is determined based on the respective desired constant curvature gradient; and f) providing for angular smoothing of the back surface radially outwards of the first boundary line by:\n i) forming a series of coefficient values of corresponding coefficients of a respective function describing each carrier line in the transition zone, and \n ii) determining, for each corresponding coefficient, a first mathematical representation approximating the series of coefficient values, to obtain a first set of mathematical representations each dependent on an angle around the carrier point, the first set of mathematical representations describing any carrier line in a radial direction for a given angle.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 93.0
- Lexical Diversity: 1.67241
- Patent Class: 351.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14719039', '14436804', '15512874', '10052372', '10497108']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5844871025598793
- 35 USC 102 Novelty (BERT): 0.4923907732842824
- Combined Prediction Score: 0.5752774696323196
- Mean Citation Score: 236.97433800000005
- Max Citation Score: 290.46936
- Similarity Product: 239.03088865181925

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

Dataset: test