PATENT CLAIM ANALYSIS

Application Number: 16051937
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-11
Patent Classification: ["355", "067000"]

Abstract:
The present invention provides a projection optical system including a first concave reflecting surface, a first convex reflecting surface, a second concave reflecting surface, and a third concave reflecting surface, wherein the first concave reflecting surface, the first convex reflecting surface, the second concave reflecting surface, and the third concave reflecting surface are arranged such that light from an object plane forms an image on an image plane by being reflected by the first concave reflecting surface, the first convex reflecting surface, the second concave reflecting surface, the first convex reflecting surface, and the third concave reflecting surface in an order named.

Claim (Index 25):
The system according to  claim 18 , wherein letting W1 be a distance between the first convex reflecting surface and the object plane with no reflecting surface existing, W2 be a distance between the first convex reflecting surface and the image plane with no reflecting surface existing, Lt1 be a distance between the object plane and the second concave reflecting surface, and Lt2 be a distance between the second concave reflecting surface and the image plane, with no reflecting surface existing between the object plane and the first concave reflecting surface, and between the third concave reflecting surface and the image plane,\n 0.5\u2264 W 1/ Lt 1\u22640.7 or 0.5\u2264 W 2/ Lt 2\u22640.7 is satisfied.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 96.0
- Lexical Diversity: 2.92308
- Patent Class: 355.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15728631', '12246795', '11751139', '11508290', '09615081']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7440597694552131
- 35 USC 102 Novelty (BERT): 0.541896596259446
- Combined Prediction Score: 0.7238434521356364
- Mean Citation Score: 300.365496
- Max Citation Score: 436.12598
- Similarity Product: 331.59237106568816

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