PATENT CLAIM ANALYSIS

Application Number: 15766398
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["359", "599000"]

Abstract:
A head-up display device includes: an image formation unit which emits light including image information; and a projection optical system including an ocular optical system which displays a virtual image by reflecting the light emitted from the image formation unit. The ocular optical system includes spherical lenses, a free-form curved surface lens, a reflection mirror, and a free-form curved surface mirror, and is configured by arranging, in a space on the side of the ocular optical system of a plane conjugate with the virtual image plane with respect to the ocular optical system, a first small lens system which achieves first focus position movement and on which separated light from the image formation unit is made to be incident, and a second small lens system which achieves second focus position movement and on which separated light from the image formation unit is made to be incident.

Claim (Index 1):
A projection optical system comprising:\n an ocular optical system that displays a virtual image by reflecting light emitted from an image forming unit that emits light including image information, wherein the ocular optical system at least includes a spherical lens, a free-form curved surface lens, and a free-form curved surface mirror, and the ocular optical system is configured to arrange a first small lens system and a second small lens system in a space on the ocular optical system side of a plane conjugate with a virtual image plane side by side along the conjugate plane, the first small lens system achieving first focus position movement, separated light of the light emitted from the image formation unit being incident upon the first small lens system, the second small lens system achieving second focus position movement shorter than the first focus position movement, separated light of the light emitted from the image formation unit being incident upon the second small lens system.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 91.0
- Lexical Diversity: 2.45312
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15768840', '10921136', '10593138', '13884043', '15637989']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7741298470791135
- 35 USC 102 Novelty (BERT): 0.4920710341690327
- Combined Prediction Score: 0.7459239657881054
- Mean Citation Score: 216.156688
- Max Citation Score: 255.97299
- Similarity Product: 193.7843616488028

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