PATENT CLAIM ANALYSIS

Application Number: 15868924
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["359", "644000"]

Abstract:
Present embodiments provide for ocular optical systems. An ocular optical system for imaging of imaging rays entering an eye of an observer via the ocular optical system and a pupil of the eye of the observer from a display screen, may comprise four lens elements positioned sequentially from an eye side to a display side. By controlling the refracting power and the surface shape of the lens elements and designing parameters satisfying at least one inequality, the ocular optical system may exhibit better optical characteristics and the half apparent field of view of the ocular optical system may be broadened.

Claim (Index 1):
An ocular optical system, for imaging of imaging rays entering eyes of an observer via the ocular optical system from a display screen, a side facing towards the eye being an eye-side, a side facing towards the display screen being a display-side, sequentially from the eye side to the display side along an optical axis, comprising first, second, third and fourth lens elements, each of the first, second, third and fourth lens elements having an eye-side surface facing toward the eye side and a display-side surface facing toward the display side, wherein:\n the display-side surface of the first lens element comprises a convex portion in a vicinity of the optical axis; the second lens element has a positive refracting power; the third lens element has a refracting power; the display-side surface of the fourth lens element comprises a concave portion in a vicinity of the optical axis; the ocular optical system comprises no other lenses having refracting power beyond the first, second, third and fourth lens elements; and wherein G4D is a distance between the display-side surface of the fourth lens element and the display screen along the optical axis; AAG is a sum of all three air gaps from the first lens element to the fourth lens element along the optical axis; and G4D and AAG satisfy the inequality:\n G 4 D/AAG\u2264 7.

Metadata:
- Claim Count in Document: 28.0
- Percentile: 86.0
- Lexical Diversity: 1.84211
- Patent Class: 359.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15415662', '14696224', '14534032', '14724782', '15791889']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8790051446750672
- 35 USC 102 Novelty (BERT): 0.668184822195223
- Combined Prediction Score: 0.8579231124270827
- Mean Citation Score: 554.135822
- Max Citation Score: 702.18475
- Similarity Product: 677.9067224475145

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

Dataset: test