PATENT CLAIM ANALYSIS

Application Number: 15744077
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["252", "584000"]

Abstract:
An oxychloride infrared nonlinear optical crystal and the preparation method and use thereof, the optical crystal has a general chemical formula of Pb 2+x OCl 2+2x , therein 0<x<0.139 or 0.141<x<0.159 or 0.161<x≤0.6. The crystal is non-centrosymmetric, belongs to orthonormal system with space group of Fmm2, cell parameter is a=35.4963(14)±0.05 Å, b=5.8320(2)±0.05 Å, c=16.0912(6)±0.05 Å. The crystal is prepared by high temperature melt method or flux method. The crystal has a strong second harmonic generation efficiency of 4 times that of KDP (KH 2 PO 4 ) tested by Kurtz method, it is phase machable, transparent in the range of 0.34-7 μm. The laser damage threshold is 10 times that of the current commercial infrared nonlinear optical crystal AgGaS 2 . No crystalline water exists in lead oxychloride, and it is stable in the air and has good thermal stability.

Claim (Index 4):
A use of oxychloride infrared nonlinear optical crystal according to  claim 1 , wherein said oxychloride infrared nonlinear optical crystal is used to prepara a second harmonic generator, an up frequency converter, a down frequency convertor, an optical parametric oscillator, a photorefractive information processor, electro-optic modulator or optical lens.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 86.0
- Lexical Diversity: 1.74257
- Patent Class: 252.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13383797', '12420526', '13383743', '14426094', '16061670']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8074080569015977
- 35 USC 102 Novelty (BERT): 0.5122905999615923
- Combined Prediction Score: 0.7778963112075972
- Mean Citation Score: 259.139828
- Max Citation Score: 276.54428
- Similarity Product: 190.2480481933356

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