PATENT CLAIM ANALYSIS

Application Number: 15939556
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["359", "558000"]

Abstract:
A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the largest.

Claim (Index 7):
The microscope objective lens according to  claim 1 , wherein\n the second lens group includes at least one cemented lens comprising a positive lens and a negative lens, the microscope objective lens satisfying the following expression:\n \u22120.0025 \u2264\u0394\u03b8gF 2/\u22120.0006 \n where a partial dispersion ratio \u03b8gF is defined as \u03b8gF=(ng\u2212nF)/(nF\u2212nC), with a refractive index relative to a g-line being set as ng, a refractive index relative to an F-line being set as nF, and a refractive index relative to a C-line being set as nC; a difference in the partial dispersion ratio between the positive lens and the negative lens which configure the cemented lens provided in the second lens group is set as \u0394\u03b8gF2, and a difference in the Abbe number between the positive lens and the negative lens is set as \u0394\u03bd2.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 90.0
- Lexical Diversity: 2.36364
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15131694', '13760681', '13709785', '15138697', '12889783']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8580937676121345
- 35 USC 102 Novelty (BERT): 0.5759606307356963
- Combined Prediction Score: 0.8298804539244906
- Mean Citation Score: 449.762114
- Max Citation Score: 490.65854
- Similarity Product: 482.2011427447917

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