PATENT CLAIM ANALYSIS

Application Number: 16060160
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["219", "121670"]

Abstract:
A laser processing machine includes a convex lens having a positive focal length, a concave lens having a negative focal length, and a focusing lens having a positive focal length. The convex lens is movable in an optical axis direction and converts divergent light of a laser beam emitted from a laser beam emission end into convergent light. The concave lens is movable in the optical axis direction and is disposed at a position that is shifted from a position where the convergent light is focused toward the convex lens side by the same distance as the focal length of the concave lens according to a position of the convex lens in the optical axis direction. The concave lens converts the convergent light into parallel light. The focusing lens focuses the laser beam emitted from the concave lens and irradiates a plate material with the focused laser beam.

Claim (Index 6):
A laser processing machine comprising:\n a first lens that is movable in an optical axis direction and having a positive focal length, and configured to convert divergent light of a laser beam emitted from an emission end of the laser beam into convergent light; a second lens that is movable in the optical axis direction and having a negative focal length, and on which the convergent light is incident; and a third lens having a positive focal length, configured to focus the laser beam emitted from the second lens, and to irradiate a plate material with the focused laser beam, wherein the second lens is disposed at a position, which is shifted from a position where the convergent light is focused toward the first lens side by the same distance as the focal length of the second lens according to a position of the first lens in the optical axis direction, and is configured to convert the convergent light into parallel light, wherein the first lens is disposed in such a way that a distance from the emission end to the first lens is equal to or greater than a focal length of the first lens, when a focused beam diameter that is a diameter of a beam waist of a beam irradiated on the plate material is represented by d, a beam parameter product that is a product of a radius d/2 of the beam waist and a half width at half maximum of a divergence angle of the beam irradiated on the plate material is configured not to be changed and to be a fixed value, even when the first and second lenses are moved, wherein when a beam diameter of a parallel light emitted from the second lens is represented by D, the beam parameter product is represented by BPP, and a focal length of the third lens is represented by f, relative positions of the first and second lenses are set in such a way that the beam diameter D is increased so as to decrease the focused beam diameter d as a plate thickness of the plate material decreases, and that the beam diameter D is decreased so as to increase the focused beam diameter d as the plate thickness of the plate material increases, and wherein the focused beam diameter d is determined based on Equation (1). d = 4 \u00b7 BPP \u00b7 f D ( 1 )

Metadata:
- Claim Count in Document: 16.0
- Percentile: 94.0
- Lexical Diversity: 2.62712
- Patent Class: 219.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16089770', '13960982', '12028470', '12415196', '10789309']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8150102512474777
- 35 USC 102 Novelty (BERT): 0.5089592205151132
- Combined Prediction Score: 0.7844051481742412
- Mean Citation Score: 220.175936
- Max Citation Score: 305.5721
- Similarity Product: 253.7279810440064

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