PATENT CLAIM ANALYSIS

Application Number: 16019133
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["359", "433000"]

Abstract:
A projection optical system is constituted by, in order from the reduction side, a first optical system for forming an image displayed by image display elements as an intermediate image, and a second optical system for forming the intermediate image on a magnification side conjugate plane. The second optical system is constituted by, in order from the reduction side, a first lens group having a positive refractive power, a first optical path bending means that bends an optical path with a reflective surface, a second lens group having a positive refractive power, a second optical path bending means that bends an optical path with a reflective surface, and a third lens group having a negative refractive power. Conditional Formulae (1) and (2) below are satisfied. 0.05<| f 23|/ D 223<0.50  (1) 5.0< D 212/| f |<20.0  (2).

Claim (Index 15):
The projection optical system as defined in  claim 2 , in which Conditional Formula (5) below is satisfied:\n 0.125< Im\u03c6/TL 2<0.240\u2003\u2003(5) wherein Im\u03c6 is the effective image diameter at the reduction side, and TL2 is the distance along the optical axis from the surface most toward the reduction side in the second optical system to the surface most toward the magnification side in the second optical system.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 94.0
- Lexical Diversity: 2.3913
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15044531', '15045570', '15042631', '14996601', '14821009']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8759829395538995
- 35 USC 102 Novelty (BERT): 0.5461274078697478
- Combined Prediction Score: 0.8429973863854843
- Mean Citation Score: 400.648844
- Max Citation Score: 425.1892
- Similarity Product: 404.8640138878823

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