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 1):
A zoom lens comprising, in order from an object side,\n a first lens group having positive refractive power, a second lens group having negative refractive power, a composite positive lens group having positive refractive power as a whole, and a composite negative lens group having negative refractive power as a whole, wherein the composite positive lens group comprises, at a most object side, a third lens group having positive refractive power, and comprises one or more lens groups having positive refractive power, the composite negative lens group comprises, at a most object side, a negative A lens group having negative refractive power, changing focal length is performed by varying distances between the lens groups, and the following conditional expressions are satisfied:\n 0.050<( fpw\u00d7fpt ) 1/2 /( fw\u00d7ft ) 1/2 <0.205\u2003\u2003(1) \n 2.50<| f 1/ f 2|<5.10\u2003\u2003(2) \n where fpw: focal length of the composite positive lens group at a wide angle end, fpt: focal length of the composite positive lens group at a telephoto end, fw: focal length of the zoom lens at the wide angle end, ft: focal length of the zoom lens at the telephoto end, f1: focal length of the first lens group, and f2: focal length of the second lens group.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 90.0
- Lexical Diversity: 2.44828
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15937240', '14140702', '15416532', '14984286', '14284784']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.869840247983317
- 35 USC 102 Novelty (BERT): 0.6438850590569062
- Combined Prediction Score: 0.8472447290906759
- Mean Citation Score: 539.3054860000002
- Max Citation Score: 697.6564
- Similarity Product: 605.1699009815216

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

Dataset: test