PATENT CLAIM ANALYSIS

Application Number: 16029492
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2018-11
Patent Classification: ["359", "645000"]

Abstract:
Provided is an eyepiece optical system including at least three lenses disposed in order from an observation object (Ob) along an optical axis. A final lens disposed closest to an eye point (EP) (corresponds to the third lens (L 3 ) in FIG.  1 ) is fixed when adjusting the diopter, and the following conditional expressions (1) and (2) are satisfied: 2.2<| fe/fa <6.0  (1) 0.5<| Re 2/ fa |<5.0  (2) where fe denotes a focal length of the final lens, fa denotes a focal length of the total eyepiece optical system (EL), and Re2 denotes a radius of curvature of the eye point (EP) side lens surface of the final lens. When an optical surface is aspherical, a paraxial radius of curvature is used for calculation.

Claim (Index 25):
The eyepiece optical system according to  claim 12 , wherein\n the following conditional expression is satisfied:\n 0.60<\u03a3 d/fa< 1.60 \n where \u03a3d denotes a distance on the optical axis, from an observation object side lens surface of a first lens disposed closest to the observation object to the eye point side lens surface of the final lens.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 95.0
- Lexical Diversity: 1.98765
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14676688', '14675790', '15062078', '14726615', '10892175']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8322724449997243
- 35 USC 102 Novelty (BERT): 0.5841429333699143
- Combined Prediction Score: 0.8074594938367433
- Mean Citation Score: 392.480164
- Max Citation Score: 505.9783
- Similarity Product: 450.71207881033416

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