PATENT CLAIM ANALYSIS

Application Number: 15766414
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["359", "630000"]

Abstract:
Provided is a head-up display device which has a virtual image plane shape becoming a part of a concave shape as viewed from the driver side. This head-up display device ( 30 ) includes: an image forming unit ( 10 ) that displays image information; and a projection optical system including an ocular optical system ( 5 ) that displays a virtual image by reflecting light emitted from the image forming unit ( 10 ). The ocular optical system ( 5 ) includes spherical lenses ( 51 ), ( 52 ), ( 53 ), and a free-form curved surface mirror ( 56 ), and is configured by arranging the spherical lenses ( 51 ), ( 52 ), ( 53 ) and the free-form curved surface mirror ( 56 ) in this order along the light emission direction.

Claim (Index 6):
The projection optical system according to  claim 4 , wherein a cross section in the horizontal direction of the virtual image plane has such shape that virtual image distance in line of sight of the front as viewed from an observer of the virtual image positioned on the side where the light is made to be incident on the virtual image plane is longer than virtual image distance in the line of sight on the right and left sides.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 91.0
- Lexical Diversity: 2.17647
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15766398', '15768840', '15671299', '15630218', '15854318']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8227251787817711
- 35 USC 102 Novelty (BERT): 0.5237058355915074
- Combined Prediction Score: 0.7928232444627447
- Mean Citation Score: 243.511104
- Max Citation Score: 370.64633
- Similarity Product: 215.78143090790627

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