PATENT CLAIM ANALYSIS

Application Number: 15981523
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["359", "557000"]

Abstract:
A variable magnification optical system has, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; an aperture stop; a third lens group having positive refractive power; and a rear lens group. Upon zooming from a wide-angle end state to a telephoto end state, at least the rear lens group is moved toward the object side, and distances between the lens groups are varied. Upon focusing from an infinitely distant object to a closely distant object, the third lens group is moved along the optical axis. At least a portion of the rear lens group constitutes a vibration reduction lens group having negative refractive power and moveable perpendicular to the optical axis. An optical apparatus and a method of manufacture are also provided.

Claim (Index 1):
A variable magnification optical system comprising, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; an aperture stop; a third lens group having positive refractive power; and a rear lens group;\n upon zooming from a wide-angle end state to a telephoto end state, at least the rear lens group being moved toward the object side, and a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, and a distance between the third lens group and the rear lens group being varied; upon focusing on from an infinitely distant object to a closely distant object, the third lens group as a whole being moved in the direction of the optical axis; at least a portion of the rear lens group being moved as a vibration reduction lens group to have a component in a direction perpendicular to the optical axis; and the vibration reduction lens group having negative refractive power.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 93.0
- Lexical Diversity: 2.15942
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14693920', '14693916', '14616718', '14700703', '15418753']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.849701802992746
- 35 USC 102 Novelty (BERT): 0.5867523021735415
- Combined Prediction Score: 0.8234068529108255
- Mean Citation Score: 437.149732
- Max Citation Score: 517.0949
- Similarity Product: 515.490098747325

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

Dataset: test