PATENT CLAIM ANALYSIS

Application Number: 15861602
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["348", "047000"]

Abstract:
An image acquisition device including: an imaging optical system forming two images having parallax; and an element acquiring the parallax images, the imaging optical system includes: a first negative lens group having negative refractive power; a first positive lens group having positive refractive power; and a second positive lens group having positive refractive power, the first negative lens group includes two negative lens groups disposed side by side in the parallax direction and having central axes respectively, the first positive lens group is a common lens group having a single central axis, and light rays emitted from the negative lens groups pass therethrough, the second positive lens group includes two positive lens groups disposed side by side in the parallax direction and having central axes respectively and the first positive lens group includes a moving lens group moved along the central axis of the first positive lens group.

Claim (Index 1):
An image acquisition device comprising:\n an imaging optical system that forms two images having parallax; and an image acquisition element that is disposed at an image side of the imaging optical system and that acquires the parallax images, wherein the imaging optical system is provided with a first negative lens group that has a negative refractive power, a first positive lens group that has a positive refractive power, and a second positive lens group that has a positive refractive power, which are arranged in this order from an object side to an image side; the first negative lens group is provided with two negative lens groups that are disposed side by side in a parallax direction corresponding to the parallax images and that have central axes respectively; the first positive lens group is a common lens group that has a single central axis and which light rays emitted from the respective negative lens groups in the first negative lens group pass through; the second positive lens group is provided with two positive lens groups that are disposed side by side in the parallax direction corresponding to the parallax images and that have central axes respectively; and the first positive lens group is provided with a moving lens group that is moved along the central axis of the first positive lens group, wherein the image acquisition device further comprises an aperture stop that has openings corresponding to the respective parallax images and is disposed closer to an imaging surface than a lens surface of the first positive lens group, the lens surface being located closest to the first negative lens group; and central principal rays passing through the two negative lens groups reach the imaging surface without the principal rays intersecting.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 86.0
- Lexical Diversity: 2.89091
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12672032', '11790338', '14472672', '14314050', '15822592']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6002999397707609
- 35 USC 102 Novelty (BERT): 0.4965766669394118
- Combined Prediction Score: 0.589927612487626
- Mean Citation Score: 241.722918
- Max Citation Score: 251.1397
- Similarity Product: 201.88226914393303

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