PATENT CLAIM ANALYSIS

Application Number: 16100397
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["353", "098000"]

Abstract:
A projection optical system consists of, in order from the magnification side, a first optical system, which consists of one convex mirror and a plurality of lenses disposed on the reduction side of the convex mirror, and a second optical system. The lens closest to the magnification side in the first optical system is a negative lens. Assuming that a paraxial radius of curvature of the convex mirror is Mr and a focal length of the negative lens closest to the magnification side in the first optical system is fL1, Conditional Expression is satisfied: 0< Mr/fL 1<4.5.

Claim (Index 7):
The projection optical system according to  claim 1 , wherein assuming that the first optical system and the second optical system have a common optical axis, an air gap on the optical axis between the first optical system and the second optical system is DG12, and an air gap on the optical axis between the convex mirror and the lens closest to the magnification side in the first optical system is Dm, Conditional Expression (6) is satisfied,\n 0.6< DG 12/ Dm< 1.5\u2003\u2003(6).

Metadata:
- Claim Count in Document: 23.0
- Percentile: 96.0
- Lexical Diversity: 2.13725
- Patent Class: 353.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16100415', '16004142', '15042631', '14996601', '15687991']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7606796716004074
- 35 USC 102 Novelty (BERT): 0.5439520878957543
- Combined Prediction Score: 0.7390069132299422
- Mean Citation Score: 340.345748
- Max Citation Score: 399.07382
- Similarity Product: 338.2055106815088

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