PATENT CLAIM ANALYSIS

Application Number: 15985821
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["250", "339110"]

Abstract:
A reflectance detection method in which a workpiece is irradiated with a laser beam and reflectance is detected, irradiating, with a light amount H0, the workpiece with a laser beam with a first wavelength X1 shorter than a detection-target wavelength X and detecting a light amount H1 of reflected return light, irradiating the workpiece with a laser beam with a second wavelength X2 longer than the detection-target wavelength X with the light amount H0 and detecting a light amount H2 of reflected return light, and employing H calculated based on an expression shown below as the light amount of return light obtained when the workpiece is irradiated with the detection-target wavelength X and calculating reflectance obtained when the workpiece is irradiated with the detection-target wavelength X based on H/H0. H=H 1+( H 2− H 1)×( X−X 1)/( X 2− X 1)

Claim (Index 3):
A reflectance detection apparatus that irradiates a workpiece with a laser beam and detects reflectance, the reflectance detection apparatus comprising:\n holding means for holding the workpiece; laser beam irradiation means for irradiating the workpiece held by the holding means with a laser beam; a light receiving element that receives reflected light reflected from the workpiece; and reflectance calculation means for comparing a light amount of the light received by the light receiving element and a light amount of the laser beam with which the workpiece is irradiated and calculating reflectance, wherein the laser beam irradiation means includes\n a first laser oscillator that oscillates a first laser beam having a first wavelength X1 shorter than a detection-target wavelength X regarding which reflectance is desired to be detected, \n first output power adjusting means for adjusting output power of the first laser beam having the first wavelength X1, \n a second laser oscillator that oscillates a second laser beam having a second wavelength X2 longer than the detection-target wavelength X, \n second output power adjusting means for adjusting output power of the second laser beam having the second wavelength X2, \n a coupler that causes the first laser beam adjusted by the first output power adjusting means and the second laser beam adjusted by the second output power adjusting means to coalesce, and \n a condenser that condenses a laser beam that results from the coalescence by the coupler to irradiate the workpiece held by the holding means with the laser beam, and \n wherein output power W1 of the first laser beam and output power W2 of the second laser beam when output power that generates a light amount H0 of the laser beam with which the workpiece is irradiated and that results from the coalescence by the coupler is defined as W0 are set based on an expression shown below, and a laser beam having the detection-target wavelength X is generated in a pseudo manner by adjusting the first output power adjusting means to cause the output power of the first laser beam to become W1 and adjusting the second output power adjusting means to cause the output power of the second laser beam to become W2,\n W 1= W 0\u00d7( X 2\u2212 X )/( X 2\u2212 X 1) \n W 2= W 0\u00d7( X\u2212X 1)/( X 2\u2212 X 1).

Metadata:
- Claim Count in Document: 9.0
- Percentile: 93.0
- Lexical Diversity: 2.54098
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11783190', '12430522', '12516336', '12535496', '11896336']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7086102796178692
- 35 USC 102 Novelty (BERT): 0.4612012526796554
- Combined Prediction Score: 0.6838693769240478
- Mean Citation Score: 190.893132
- Max Citation Score: 200.45511
- Similarity Product: 175.74409356423138

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