PATENT CLAIM ANALYSIS

Application Number: 15912595
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["359", "676000"]

Abstract:
The lens system forms an image conjugately between each of a magnification conjugate point and a reduction conjugate point; and an intermediate image-forming position. The lens system includes a magnification optical system with positive power, the magnification optical system having a plurality of lens elements and positioned closer to the magnification side than the intermediate image-forming position; and a relay optical system with positive power, the relay optical system having a plurality of lens elements and positioned closer to the reduction side than the intermediate image-forming position. The lens system satisfies following conditions (1) and (2). 0.08≤ fp/fr ≤0.8  (1) { Y max− ft ·tan(ωmax)}/{ ft ·tan(ωmax)}≤−0.3  (2) where fr is composite focal length of the relay optical system, fp is composite focal length of the magnification optical system, Ymax is a radius of an effective image diameter, ωmax is a maximum half view angle, and ft is the focal length of the lens system.

Claim (Index 4):
The lens system of  claim 1 ,\n wherein the magnification optical system includes at least one lens element with positive power and is composed of a rear group and a front group,\n the rear group composed of at least one lens element closer to the reduction side than a lens element with positive power disposed closest to the magnification side of the magnification optical system, the at least one lens element including the lens element with positive power disposed closest to the magnification side, \n the front group composed of at least one lens element closer to the magnification side than the lens element with positive power disposed closest to the magnification side of the magnification optical system, and \n wherein the lens system satisfies following condition (5)\n | t/ft|\u2264 3.0\u2003\u2003(5) \n where t is distance on an optical axis between a surface of a lens element closest to the reduction side among the at least one lens element in the front group of the magnification optical system; and a surface of a lens element closest to the magnification side among the at least one lens element in the rear group of the magnification optical system.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 90.0
- Lexical Diversity: 2.61972
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12057103', '14610559', '15545702', '12696546', '15464937']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8433882729706602
- 35 USC 102 Novelty (BERT): 0.5000112942554161
- Combined Prediction Score: 0.8090505750991358
- Mean Citation Score: 282.759506
- Max Citation Score: 291.02634
- Similarity Product: 207.207531235056

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

Dataset: test