PATENT CLAIM ANALYSIS

Application Number: 15939428
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["358", "475000"]

Abstract:
In an optical scanning device, an optical deflector includes a base plate, a rotor having an axis of rotation orthogonal to the base plate, and a polygon mirror fixed to the rotor; the polygon mirror has a plurality of reflecting surfaces tilted at a predetermined angle with respect to the axis of rotation. Protrusions protruding from a bottom surface of a frame have bearing surfaces at respective distal ends thereof; the bearing surfaces are in contact with the base plate. The bottom surface includes a first region on which a first protrusion is disposed, and a second region on which a second protrusion is disposed, and a distance between the first region and a scanning plane containing optical axes in cross sections taken along a sub scanning direction of a scanning lens is different from a distance between the second region and the scanning plane.

Claim (Index 1):
An optical scanning device comprising:\n a light source configured to emit a light beam; an optical deflector configured to deflect, in a main scanning direction, a light beam emitted from the light source; a scanning lens configured to focus the light beam deflected by the optical deflector on a surface to be scanned; and a frame on which the light source, the optical deflector and the scanning lens are fixed, the frame having a bottom surface, wherein the optical deflector includes a base plate, a rotor having an axis of rotation orthogonal to the base plate, and a polygon mirror fixed to the rotor, the polygon mirror having a plurality of reflecting surfaces tilted at a predetermined angle with respect to the axis of rotation in a plane containing the axis of rotation, wherein the frame includes a plurality of protrusions protruding from the bottom surface, the plurality of protrusions having a plurality of bearing surfaces at respective distal ends thereof, the plurality of bearing surfaces being in contact with the base plate, the plurality of protrusions including a first protrusion and a second protrusion, and wherein the bottom surface includes a first region on which the first protrusion is disposed, and a second region on which the second protrusion is disposed, and a distance between the first region and a scanning plane containing optical axes in cross sections taken along a sub scanning direction of the scanning lens is different from a distance between the second region and the scanning plane.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.15278
- Patent Class: 358.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13072717', '10740577', '11675808', '14014674', '14715842']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4974133447070028
- 35 USC 102 Novelty (BERT): 0.4589799505077422
- Combined Prediction Score: 0.4935700052870768
- Mean Citation Score: 170.736798
- Max Citation Score: 173.76317
- Similarity Product: 148.7113943866515

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