Transparent sound absorbing panels

Patent metadata

Field	Value
Publication number	US-2020370293-A1
Application number	US-202016992370-A
Country	US
Kind code	A1
Filing date	Aug 13, 2020
Priority date	Mar 20, 2014
Publication date	Nov 26, 2020
Grant date	—

Abstract

A sound absorbing panel and method therefor comprising providing a first sheet of photosensitive material, applying a first mask having a first plurality of features to the first sheet of photosensitive material, exposing the masked material to ultraviolet light, heating the first sheet of photosensitive material to form crystals in exposed portions of the first sheet, and etching the crystals to form a second plurality of features in the first sheet of photosensitive material.

First claim

What is claimed is:

1 . A sound absorbing panel comprising:
a first sheet of photosensitive material; and a resilient surface spaced apart from the first sheet of photosensitive material by a predetermined distance, wherein the sheet of photosensitive material includes a first plurality of features.

2 . The sound absorbing panel of claim 1 , wherein the first plurality of features comprise etched features.

3 . The sound absorbing panel of claim 1 , wherein the first sheet of material is three dimensional.

4 . The sound absorbing panel of claim 1 , wherein the photosensitive material is a glass or glass ceramic material.

5 . The sound absorbing panel of claim 1 , wherein the photosensitive material comprises:
about 75-85 wt % SiO 2 , about 2-6 wt % Al 2 O 3 , about 7-11 wt % Li 2 O, about 3-6 wt % K 2 O, about 0.5-2.5 wt % Na 2 O, about 0.01-0.5 wt % Ag, about 0.01-0.5 wt % Sb 2 O 3 , about 0.01-0.04 wt % CeO 2 , about 0-0.01 wt % Au, and about 0-0.01 wt % SnO 2 .

6 . The sound absorbing panel of claim 1 , wherein the first sheet has a thickness of up to about 20 μm, up to about 40 μm, up to about 60 μm, up to about 100 μm, up to about 0.1 mm, up to about 0.3 mm, up to about 0.5 mm, up to about 1.0 mm, up to about 1.5 mm, or up to about 2.0 mm.

7 . The sound absorbing panel of claim 1 , wherein the photosenstive material is translucent, transparent, tinted, colored, or decorated.

8 . The sound absorbing panel of claim 1 , wherein the photosensitive material is strengthened.

9 . The sound absorbing panel of claim 1 , wherein the features have a diameter or depth of up to about 20 μm, up to about 40 μm, up to about 60 μm, up to about 100 μm, up to about 0.1 mm, up to about 0.3 mm, up to about 0.5 mm, up to about 1.0 mm, up to about 1.5 mm, or up to about 2.0 mm.

10 . The sound absorbing panel of claim 1 further comprising a second sheet of photosensitive material having a second plurality of features etched therein, the second sheet intermediate the first sheet and the resilient surface.

11 . A sound absorbing panel comprising:
a first sheet of photosensitive material; and a resilient surface spaced apart from the first sheet of photosensitive material by a predetermined distance, wherein the first sheet of photosensitive material includes a plurality of features formed therein without mechanical etching.

12 . The sound absorbing panel of claim 11 wherein the plurality of features are formed by chemical etching.

13 . The sound absorbing panel of claim 11 , wherein the first sheet of material is three dimensional.

Assignees

• Corning Inc

Inventors

• Borrelli Nicholas Francis
• Shi Zhiqiang

Classifications

• C03C3/095 Primary

  containing rare earths · CPC title

• E04B1/82

  specifically with respect to sound only ({of floors or ceilings E04B9/001;} noise damping in ducts or channels E04F17/00; noise damping in general G10K11/16) · CPC title

• C03C2218/34

  Masking · CPC title

• C03C4/04

  for photosensitive glass · CPC title

• E04B9/0464

  having irregularities on the faces, e.g. holes, grooves · CPC title