PATENT CLAIM ANALYSIS

Application Number: 16270164
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["353", "098000"]

Abstract:
An optical system includes a reflective optical system on a magnification side along an optical path of the projection optical system and a refractive optical system on a reduction side along the optical path. The reflective optical system includes one reflective optical element having a power. The refractive optical system includes a front group on the magnification side and a rear group on the reduction side. The front group having, in order from the magnification side toward the reduction side, a first lens group with a positive or negative refractive power, a second lens group, and a third lens group with a positive refractive power. The rear group has a positive refractive power. The first lens group moves to the magnification side, and the second lens group and the third lens group move to the reduction side in a change in focus from a long distance to a short distance.

Claim (Index 12):
The projection optical system according to  claim 1 , wherein each of the first focusing lens group and the third focusing lens group in the front group of the refractive optical system consists of a single lens.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 99.0
- Lexical Diversity: 3.28571
- Patent Class: 353.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15822036', '15230816', '15170159', '14488720', '14488838']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7207221846665701
- 35 USC 102 Novelty (BERT): 0.588560572367858
- Combined Prediction Score: 0.7075060234366989
- Mean Citation Score: 356.24082400000015
- Max Citation Score: 472.3998
- Similarity Product: 462.0153319548011

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

Dataset: test