PATENT CLAIM ANALYSIS

Application Number: 16134367
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-05
Patent Classification: ["359", "630000"]

Abstract:
There are provided a light guide device that does not cause non-uniformity in image light and external light and does not cause ghosts, and a virtual image display apparatus provided with the light guide device. The light guide device includes a parallel light guide, an incident section, and an emission section. Here, the light guide device is set such that image light rays are reflected without reflecting from a boundary surface between the parallel light guide and the reflection unit and head for an observer. Thus, the image light rays only pass through half mirrors, which are positioned in positions where the image light rays are emitted from the reflection unit of the emission section or are positioned therearound. Accordingly, it is possible to prevent luminance non-uniformity or light reduction by reducing the number of times of the image light rays to be observed pass through the half mirrors.

Claim (Index 1):
A light guide device comprising:\n a light guide that includes a pair of surfaces, which faces each other so as to correspond to an observer and an external side, the pair of surfaces extending in substantially parallel with each other; an incident section that is provided at one end of the light guide; and an emission section that is provided at the other end of the light guide, the emission section including a reflection unit having:\n a first surface disposed between the light guide and the reflection unit, the first surface of the reflection unit not reflecting first image light rays that pass through the first surface, \n a second surface opposite to the first surface, the second surface of the reflection unit reflecting second image light rays depending on an angle of incidence on the second surface, and \n a plurality of mirrors configured to reflect the first image light rays and the second image light rays, the plurality of mirrors being inclined toward the incident section toward the external side, and the plurality of mirrors reflecting the first image light rays toward the observer.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 97.0
- Lexical Diversity: 2.14667
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15500683', '15425209', '14528410', '14910139', '15797261']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.788014622614546
- 35 USC 102 Novelty (BERT): 0.5613927534132499
- Combined Prediction Score: 0.7653524356944165
- Mean Citation Score: 306.969666
- Max Citation Score: 441.38956
- Similarity Product: 432.4015299042678

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