PATENT CLAIM ANALYSIS

Application Number: 16137637
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["353", "101000"]

Abstract:
An imaging optical system includes a plurality of lens groups each moving such that spaces between each one of the plurality of lens groups change during a zooming. The imaging optical system conjugates a conjugate point on a magnification side and an intermediate imaging position, and conjugates a conjugate point on a reduction side and the intermediate imaging position. The imaging optical system includes a first lens group located at a furthest place on the magnification side and a rear group in this order from the magnification side toward the reduction side. The first lens group includes a field curvature correction lens group moving along an optical axis when an amount of a field curvature is changed, and a focusing lens group. The imaging optical system satisfies condition (4) below: |{(1− βcw 2 )×β crw 2 }/{(1−β fw 2 )×β frw 2 }|<0.2   (4)

Claim (Index 9):
The imaging optical system according to  claim 5 , wherein the first negative lens is located farther on the magnification side than the aspherical lens located furthest on the magnification side among the other aspherical lenses, and satisfies condition (3) below:\n 0.5<( R 1 f+R 1 r )/( R 1 f\u2212R 1 r )<5.0 \u2003\u2003(3) where, R 1 f  is a curvature radius of a surface, facing toward the magnification side, of the first negative lens, and\n R 1 r  is a curvature radius of a surface, facing toward the reduction side, of the first negative lens.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 97.0
- Lexical Diversity: 2.14103
- Patent Class: 353.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14288421', '14044430', '13418430', '15183494', '14542963']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7218970221285799
- 35 USC 102 Novelty (BERT): 0.5209581314889025
- Combined Prediction Score: 0.7018031330646122
- Mean Citation Score: 308.1547260000001
- Max Citation Score: 318.27667
- Similarity Product: 263.49163451579216

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

Dataset: test