PATENT CLAIM ANALYSIS

Application Number: 15916515
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["356", "445000"]

Abstract:
A specular variable angle absolute reflectometer. The device includes a light source and a mirror system in a light path of the light source. The mirror system is configured to reflect a light beam from the light source towards a sample that is optically reflective. The device also includes a roof mirror disposed in the light path after the sample. The roof mirror is configured to reflect the light beam back towards the sample. The device also includes a mechanism connected to the roof mirror. The mechanism is configured to rotate the roof mirror about an axis of the sample. The device also includes a detector in the light path after the roof mirror such that the detector receives light that has been reflected from the roof mirror, thence back to the sample, thence back to the mirror system, and thence to the detector.

Claim (Index 20):
A method of using a specular variable angle absolute reflectometer comprising a light source; a mirror system in a light path of the light source, the mirror system configured to reflect a light beam from the light source towards a sample that is optically reflective; a roof mirror disposed in the light path after the sample, the roof mirror configured to reflect the light beam back towards the sample; a mechanism connected to the roof mirror, the mechanism being configured to rotate the roof mirror about an axis of the sample; and a detector in the light path after the roof mirror such that the detector receives light that has been reflected from the roof mirror, thence back to the sample, thence back to the mirror system, and thence to the detector, the method comprising:\n removing the sample and verify a sample holder does not restrict the light beam; aligning the roof mirror to a 100% configuration; measuring a signal at the detector to form a 100% measured value; measuring a total light source power at the detector; thereafter moving a mirror system so that the light beam is projected into a light trap to interrupt the light source; thereafter measuring a background noise at the detector; thereafter moving the mirror system back to receive the light beam; replacing the sample into the path of the light beam; rotating the sample to a desired incident angle; rotating the roof mirror to a complimentary reflection angle; measuring a sample reflection at the detector to form a measured value; measuring a total light source power at the detector; thereafter moving a mirror system so that the light beam is projected into a light trap to interrupt the light source; thereafter measuring a background noise at the detector; thereafter moving the mirror system back to receive the light beam; calculating a reflectance of the sample as a ratio of the 100% measured value with background compensation; and calculating an absolute reflectance of the sample as a square root of the reflectance to the 100% measured value.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 90.0
- Lexical Diversity: 3.1
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['10255940', '08871305', '11418062', '12854917', '10472296']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7261097650457351
- 35 USC 102 Novelty (BERT): 0.4822201049067779
- Combined Prediction Score: 0.7017207990318394
- Mean Citation Score: 230.24461800000003
- Max Citation Score: 247.02136
- Similarity Product: 209.6156489694786

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