PATENT CLAIM ANALYSIS

Application Number: 16001575
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["348", "079000"]

Abstract:
An observation device  100  includes an objective  2 a , camera  3 , an observation scope changing device, and a control device. The objective  2 a  having from 4× to 20× and including a positive lens group forms an image with light from sample S. The lens group includes a single lens L 1  having a concave surface on an object side and a variable aperture diaphragm  4 . The camera  3  converts the image into an image signal. The observation scope changing device performs electronic scaling on the image signal and performs an observation scope changing process. The control device controls the diaphragm  4  in accordance with the observation scope changing process. The observation device  100  satisfies a conditional expression is satisfied, 3≤| fa/fGS |≤10 where fa is a focal length of single lens L 1  and fGS is a focal length of a lens group from an object plane to the diaphragm  4.

Claim (Index 1):
An observation device that observes an object, the observation device comprising:\n an objective that forms an image with light from the object, that includes a lens group, and that has a magnification equal to or higher than 4\u00d7 and equal to or lower than 20\u00d7, the lens group having a positive refractive power and including, in order starting from an object side, a single lens having a concave surface on an object side and a variable aperture diaphragm configured to change a numerical aperture on an exit side of the objective; an image pickup device that converts an image of the object into an image signal, the image of the object being formed by the objective; an observation scope changing device that performs electronic scaling on the image signal obtained by the image pickup device and thereby performs an observation scope changing process of changing an observation scope; and a control device that controls the variable aperture diaphragm in accordance with the observation scope changing process, wherein a conditional expression is satisfied,\n 3\u2264| fa/fGS|\u2264 10 \n where fa is a focal length of the single lens and fGS is a focal length of a lens group from an object plane to the variable aperture diaphragm.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 94.0
- Lexical Diversity: 2.28169
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13845041', '14514107', '12761463', '14504112', '13289182']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5838869406129593
- 35 USC 102 Novelty (BERT): 0.5112048623959281
- Combined Prediction Score: 0.5766187327912562
- Mean Citation Score: 225.036428
- Max Citation Score: 240.83797
- Similarity Product: 151.49149208621503

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