PATENT CLAIM ANALYSIS

Application Number: 15775973
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["356", "477000"]

Abstract:
An interferometer for areally measuring an optically smooth surface is presented, including means for illuminating a surface region with a plurality of discrete object waves from different directions and comprising means which, on a detector, superimpose object waves reflected at the surface onto a reference wave that is coherent with a plurality of object waves in order to form an interferogram. The interferometer is distinguished by virtue of it being configured to illuminate the surface with a plurality of object waves at the same time and produce the reference wave by way of a Fizeau beam splitter plate or a Fizeau objective, and by virtue of the interferometer including an interferometer stop that is arranged in the beam path upstream of the detector, and imaging optics, wherein the interferometer stop is situated within, or slightly outside of, the Fourier plane of the imaging optics and said interferometer stop filters the object waves reflected by the surface.

Claim (Index 18):
Method according to  claim 17 , characterized in that a measurement consists of a plurality of measured value recordings, and in that different samples of mutually differing object waves are used for the different measured value recordings, in such a way that, as a result of the different measured value recordings, each point to be measured of the surface is illuminated at least once by an object wave that reaches the detector.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 93.0
- Lexical Diversity: 2.10127
- Patent Class: 356.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12856723', '10838694', '11800840', '15385143', '11354534']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7034406066461714
- 35 USC 102 Novelty (BERT): 0.5106018173099942
- Combined Prediction Score: 0.6841567277125538
- Mean Citation Score: 246.20876200000004
- Max Citation Score: 264.7556
- Similarity Product: 188.0074162000656

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

Dataset: test