PATENT CLAIM ANALYSIS

Application Number: 15743938
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["345", "007000"]

Abstract:
A head-up display device includes an illumination optical system, an imaging optical system and a reflective optical system. The illumination optical system emits a source light indicating information. The imaging optical system projects the source light to a projection surface. The reflective optical system has a dielectric multilayer film, and is configured so that a retardation of a subject wavelength including at least a part of wavelengths of the source light from the illumination optical system is in a range greater than −π/2 [rad] and smaller than π/2 [rad]. The reflective optical system is arranged on a path from the illumination optical system to the imaging system so that a polarization axis of the source light from the illumination optical system defines an angle α satisfying a relation of 0 degree <α<90 degrees <α<180 degrees, relative to an incident surface.

Claim (Index 6):
A reflective optical system that is configured to be used in a head-up display device mounted in a movable body and having an illumination optical system emitting a linearly polarized source light and an imaging optical system projecting the source light emitted by the illumination optical system to a projection surface, the reflective optical system comprising:\n a dielectric multilayer film that is configured to be arranged, on a path of the source light from the illumination optical system to the imaging optical system, so that a polarization axis of the source light emitted by the illumination optical system defines an angle relative to an incident surface being greater than 0 degree and smaller than 90 degrees, or being greater than 90 degrees and smaller than 180 degrees, the dielectric multilayer film transmitting an electromagnetic wave in an infrared region and reflecting an electromagnetic wave in a visible light region, wherein the reflective optical system is configured so that a retardation of a subject wavelength including at least a part of wavelengths of the source light emitted from the illumination optical system is in a range greater than \u2212\u03c0/2 [rad] and smaller than \u03c0/2 [rad].

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 2.19444
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11189102', '13888504', '16349031', '15040385', '10319800']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.635370206301287
- 35 USC 102 Novelty (BERT): 0.466294151006312
- Combined Prediction Score: 0.6184626007717896
- Mean Citation Score: 169.409468
- Max Citation Score: 173.24132
- Similarity Product: 136.3510177382255

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