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 1):
A projection optical system that forms an intermediate image at a conjugate position with an image which is displayed by image display elements provided on a reduction side conjugate plane and projects the intermediate image onto a magnification side conjugate plane as a magnified image, consisting of:\n a plurality of lenses; and two optical path bending means for bending an optical path by 90 degrees with a reflective surface; a lens being positioned respectively at the most reduction side and the most magnification side of the entire system; the images which are displayed by the image displayed elements being projected as the magnified image which are inverted 180 degrees; and the lens positioned at the most magnification side having a shape in which at least a portion thereof more toward the side of the image display elements than the optical axis of the lens is cut out.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 94.0
- Lexical Diversity: 2.3913
- Patent Class: 359.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15044531', '15045570', '15042631', '14996601', '14821009']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.891912654087979
- 35 USC 102 Novelty (BERT): 0.5385573022199437
- Combined Prediction Score: 0.8565771189011756
- Mean Citation Score: 400.648844
- Max Citation Score: 425.1892
- Similarity Product: 355.81858832125664

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test