Sound transmission curtain and manufacturing method thereof

A manufacturing method and sound-transmitting technology, applied in optics, instruments, projection devices, etc., can solve problems affecting sound effects, small hole moiré fringes, sound wave diffraction, etc., and achieve the effect of eliminating moiré fringes and diffraction phenomena and improving the effect

Active Publication Date: 2019-08-13
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current perforated screens are all periodic perforated arrays, and the periodic arrangement of the holes is likely to cause the diffraction of sound waves, thereby affecting the sound effect. In addition, this kind of periodic arrangement of small holes will also produce moiré fringes

Method used

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  • Sound transmission curtain and manufacturing method thereof
  • Sound transmission curtain and manufacturing method thereof

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Embodiment Construction

[0020] figure 1 Schematic diagram of the structure of the sound-permeable curtain of the present invention Figure 1 ; figure 2 Schematic diagram of the structure of the sound-permeable curtain of the present invention Figure II . like figure 1 and figure 2 As shown, the present invention provides a sound-transmitting curtain, which includes a sound-transmitting curtain substrate 100 and a sound-transmitting hole 200 disposed on the sound-transmitting curtain substrate 100, and the sound-transmitting hole 200 is at least partially The sound curtain substrate 100 is arranged in a two-dimensional quasicrystal array. The material of the sound-transmitting curtain substrate 100 is polyvinyl chloride (PVC), polycarbonate (PC) or polyethylene terephthalate (PET), and the sound-transmitting hole 200 is arranged on the sound-transmitting curtain Through holes on the substrate 100, the sound emitted from one side of the sound-transmitting curtain can reach the other side of th...

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Abstract

A sound transmission curtain is provided and comprises a sound transmission curtain base material (100) and sound transmission holes (200) formed in the sound transmission curtain base material, and at least part of the sound transmission holes are distributed in the sound transmission curtain base material in a two-dimensional quasi-crystal array mode. According to the invention, the sound transmission holes which are at least partially distributed in the two-dimensional quasi-crystal array are arranged in the sound transmission curtain base material, so that the effect of the sound transmission curtain is improved, and moire fringes and diffraction phenomena are eliminated.

Description

technical field [0001] The invention relates to a sound-transmitting screen and a manufacturing method thereof, and belongs to the technical field of projection screen manufacturing. Background technique [0002] Pursuing the perfect fusion of sound and picture has been the relentless pursuit of the film industry for nearly a hundred years. The ideal placement of speakers is behind the screen, so that the picture and sound can be perfectly integrated. to restore the real sound. [0003] The current sound-transmitting screens mainly include perforated screens and woven screens. The woven screens have low gain and poor performance in maintaining deviation. The perforated screen can realize the advantages of high gain and high polarization maintenance, and has developed rapidly. However, the current perforated screens are all periodic perforated arrays. The periodic arrangement of the holes is likely to cause the diffraction of sound waves, thereby affecting the sound effect....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/56G03B21/60
CPCG03B21/56G03B21/60G03B21/58G03B21/62
Inventor 张红秀胡飞李屹
Owner APPOTRONICS CORP LTD
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