PATENT CLAIM ANALYSIS

Application Number: 15937023
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-01
Patent Classification: ["359", "557000"]

Abstract:
A zoom lens including, in order from an object side, a positive first lens group G 1 , a negative second lens group G 2 , a composite positive lens group which includes, at the most object side, a positive third lens group G 3 , which is consisting of one or more lens groups having positive refractive power, and which has positive refractive power as a whole, and a composite negative lens group which includes, at the most object side, a negative A lens group, which additionally includes at least a negative B lens group, and which has negative refractive power as a whole. In the zoom lens, changing focal length is performed by varying the distances between the lens groups, and a predetermined condition is satisfied.

Claim (Index 3):
The zoom lens according to  claim 1 , wherein\n the first lens group comprises at least one positive lens made from an anomalous dispersion glass material satisfying, with respect to a g-line and an F-line, the following condition:\n 0.012<\u0394 PgF 1<0.100\u2003\u2003(4) \n where \u0394PgF1: deviation of a partial dispersion ratio of the anomalous dispersion glass material from a reference line when a line passing through coordinates of glass material C7 (partial dispersion ratio: 0.5393, Abbe numbers \u03bdd: 60.49) and coordinates of glass material F2 (partial dispersion ratio: 0.5829, Abbe numbers \u03bdd: 36.30) is assumed to be the reference line.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 90.0
- Lexical Diversity: 2.44828
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15937240', '14140702', '15416532', '14984286', '14284784']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8789630480768412
- 35 USC 102 Novelty (BERT): 0.6681726352691569
- Combined Prediction Score: 0.8578840067960729
- Mean Citation Score: 539.3054860000002
- Max Citation Score: 697.6564
- Similarity Product: 673.0368105951547

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