PATENT CLAIM ANALYSIS

Application Number: 15880909
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["351", "206000"]

Abstract:
An apparatus for non-contact examination of an eye comprises for illuminating and imaging the eye: an apparatus objective of a positive optical power and a positive spherical aberration which illuminates and images an angle wider than a cross section of the zone I of the retinal vasculature, the apparatus objective being common to the imaging and the illumination the optical paths of which are deviated from each other in the examination apparatus; and a secondary lens unit, which is located behind the apparatus objective in the optical path in a direction of the imaging, modifies at least one of the following optical features: lateral color aberration, astigmatism, field curvature and coma caused by the apparatus objective, and focuses the imaging radiation modified by the secondary lens unit on an image sensor for forming an image of a retina of the eye.

Claim (Index 14):
A method of non-contact examination of an eye, the method comprising\n illuminating and imaging an eye through a common apparatus objective which has a positive optical power and a positive spherical aberration for covering an angle wider than a cross section of the zone I of the retinal vasculature, the imaging and the illumination having optical paths deviated from each other in the examination apparatus; distorting an image of an exit pupil of imaging and an image of an entrance pupil of illumination on their image planes within the eye by the positive spherical aberration of the apparatus objective; separating the optical paths of the imaging and illumination at least on frontal and rear surfaces of the crystalline lens by the deviation of the optical paths from each other in the examination apparatus, cross sections of the optical paths on the frontal and rear surfaces of the crystalline lens being fully illuminated areas side by side; and modifying, by a secondary lens unit located behind the apparatus objective in the optical path in a direction of the imaging at least one of the following optical features: lateral color aberration, astigmatism, field curvature and coma caused by the apparatus objective; and focusing the imaging radiation modified by the secondary lens unit on an image sensor for forming an image of a retina of the eye.

Metadata:
- Claim Count in Document: 10.0
- Percentile: 86.0
- Lexical Diversity: 1.96104
- Patent Class: 351.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13814808', '14003099', '13876539', '14553956', '10137720']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5701742658699553
- 35 USC 102 Novelty (BERT): 0.4645826201181245
- Combined Prediction Score: 0.5596151012947723
- Mean Citation Score: 197.98848000000004
- Max Citation Score: 207.00087
- Similarity Product: 166.78841189690348

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

Dataset: test