PATENT CLAIM ANALYSIS

Application Number: 15864556
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-02
Patent Classification: ["353", "038000"]

Abstract:
A laser illumination system and a method for eliminating laser speckles thereof are revealed. The laser illumination system includes laser module emitting a laser beam, a scanning unit for scanning the laser beam to form scanning beams, and a diffractive optical element which the scanning beams are passed through to form illuminating beams that are projected to an area to be illuminated or an object. Thus an image detecting unit can capture an image of the area or the object. The scanning beams are converted into the illuminating beams by the diffractive optical element that causes changes in spatial phase redistribution or light energy distribution thereof. One point in the area or on the object shows energy of partial light of at least two of the laser beams. Thus a laser speckle of the image can be eliminated by the superposition of the energy of the partial light.

Claim (Index 7):
A method for eliminating laser speckles of a laser illumination system comprising the steps of:\n providing a laser illumination system; wherein the laser illumination system includes at least one laser module that emits a laser beam, at least one scanning unit used for scanning the laser beam to form scanning beams, and at least one diffractive optical element which the scanning beams are passed through to form illuminating beams; then the illuminating beams are projected to an area to be illuminated or at least one object in the area to be illuminated for illumination; thus an image detecting unit can capture an image of the area to be illuminated/or the object; the image detecting unit is able to be human eyes and or an optical sensor; the image detecting unit has reaction time that is defined as how long an impression of an image remains on the human eyes, or sensing and responding time of the optical sensor; converting the scanning beam into the illuminating beam by diffraction of the diffractive optical element that causes changes in spatial phase redistribution or light energy distribution of the scanning beam while the scanning beam being passed through the diffractive optical element; and eliminating a laser speckle of the image captured by the image detecting unit by superposition of energy of partial light of at least two of the illuminating beams shown on one point in the area to be illuminated or on the object in the area to be illuminated within the reaction time of the image detecting unit; wherein the diffractive optical element further includes an effective diffraction zone that causes changes in spatial phase redistribution or light energy distribution of the scanning beams and converts the scanning beams into the illuminating beams by diffraction effect thereof while the scanning beams being passed therethrough; thus the illuminating beams further form an effective illumination area within the area to be illuminated; and wherein the diffractive optical element is selected from the group consisting of a micro-optical diffractive element, a bulk optic, a diffuser and a combination thereof according to light energy and phase distribution required; but the diffractive optical element does not comprise any Electrically Switchable Bragg Grating (ESBG) element wherein said ESBG element is recorded in a Holographic Polymer Dispersed Liquid Crystal sandwiched between transparent substrates to which transparent conductive coatings have been applied.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 2.22857
- Patent Class: 353.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10067540', '10131796', '10150491', '10164845', '13821707']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6815264622658036
- 35 USC 102 Novelty (BERT): 0.4967391288472357
- Combined Prediction Score: 0.6630477289239468
- Mean Citation Score: 242.056498
- Max Citation Score: 247.36697
- Similarity Product: 194.68834762552265

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