PATENT CLAIM ANALYSIS

Application Number: 16161711
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["355", "072000"]

Abstract:
There is provided an encoder device to measure a relative moving amount between first and second members. The encoder device includes: a reflective-type diffraction grating on the first member; a light source unit to radiate a measuring light; a first optical member on the second member; a first and second reflecting units on the second member that cause first and third diffracted lights generated via diffraction of the measuring light and having orders different from each other to come into the diffraction grating respectively, and cause second and fourth diffracted lights generated via diffraction of the first and third diffracted lights respectively to come into the first optical member; photo-detectors configured to detect interference lights between two diffracted lights and other light beam respectively; and a measuring unit to obtain the relative moving amount by using detection signals from the photo-detectors.

Claim (Index 1):
An optical system for an encoder device configured to measure a relative moving amount relative to a reflective-type diffraction grating, the optical system comprising:\n a first optical member configured to emit a first part of a light from a light source as a measuring light so as to irradiate the diffraction grating with the measuring light and to emit a second part of the light from the light source as a reference light; and a second optical member configured to cause a diffracted light, which is generated via a diffraction of the measuring light at the diffraction grating, to come into the first optical member, wherein the first optical member emits the diffracted light from the second optical member in a direction in which the reference light is emitted.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 97.0
- Lexical Diversity: 2.27273
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15964230', '14397312', '13678857', '15919519', '14401860']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7506986055967418
- 35 USC 102 Novelty (BERT): 0.555926547385265
- Combined Prediction Score: 0.7312213997755942
- Mean Citation Score: 373.351728
- Max Citation Score: 450.28906
- Similarity Product: 423.86972220348366

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