PATENT CLAIM ANALYSIS

Application Number: 15753912
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["359", "731000"]

Abstract:
A projection optical system capable of performing compact and proximate projection and a projector including the projection optical system. The projection optical system includes a first optical group which is a dioptric system and a second optical group which is a catoptric system. The second optical group includes a first catoptric system to a third catoptric system that have a first reflection surface with a concave surface shape, a second reflection surface with a curved surface shape, and a third reflection surface with a convex surface shape. The first catoptric system to the third catoptric system satisfy Conditional Expression (1) for focal distances. Image light emitted from the first optical group is reflected by the second optical group to be projected to a projection surface.

Claim (Index 4):
The projection optical system according to  claim 3 ,\n wherein all surfaces of the plurality of lenses and the first to third catoptric systems are configured with rotationally symmetric surfaces to form a coaxial optical system that has a same optical axis.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 88.0
- Lexical Diversity: 2.5283
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15580584', '15240883', '14032865', '15014464', '15014668']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8462277216919102
- 35 USC 102 Novelty (BERT): 0.530860840604841
- Combined Prediction Score: 0.8146910335832033
- Mean Citation Score: 326.33689
- Max Citation Score: 390.32578
- Similarity Product: 367.2086337219585

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