PATENT CLAIM ANALYSIS

Application Number: 15964867
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["348", "750000"]

Abstract:
In a projection system, a nonaxisymmetric aspheric surface is used as a surface that is located in a position where in a pencil of light of video image light that exits from each of two points in different corner regions in an image plane that is a light exiting plane of an image display apparatus, light components that should reach a viewer's eyes do not intersect one another, whereby the size of an optical system can be further reduced and the size of an overall apparatus can therefore be reduced with a variety of types of optical precision, such as the resolution and angle of view, maintained.

Claim (Index 3):
The virtual image display apparatus according to  claim 1 ,\n wherein the light guide member has at least two nonaxisymmetric curved surfaces, among the plurality of surfaces that form the light guide member, a first surface and a third surface are so located as to face each other, and the first surface and the third surface provide diopter of roughly zero when an outside scene is visually recognized through the first surface and the third surface, and the video image light from the video device is totally reflected off the third surface, is totally reflected off the first surface, is reflected off a second surface, then passes through the first surface, and reaches an observation side.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 1.72727
- Patent Class: 348.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15368294', '15374656', '13353641', '14561976', '13949744']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7009124590241659
- 35 USC 102 Novelty (BERT): 0.586253482270129
- Combined Prediction Score: 0.6894465613487623
- Mean Citation Score: 339.082636
- Max Citation Score: 479.72775
- Similarity Product: 474.0516404196472

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

Dataset: test