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Sound-transmitting curtain and manufacturing method thereof

A manufacturing method and sound-transmitting technology, applied in instruments, projection devices, optics, 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: 2021-08-17
APPOTRONICS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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-transmitting curtain and manufacturing method thereof
  • Sound-transmitting 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 . Such as 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...

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Abstract

A sound-transmitting curtain, the sound-transmitting curtain comprising a sound-transmitting curtain base material (100) and a sound-transmitting hole (200) arranged on the sound-transmitting curtain base material, the sound-transmitting hole being at least partly on the sound-transmitting curtain base material Arranged in a two-dimensional quasicrystal array. The present invention improves the effect of the sound-transmitting curtain and eliminates moiré fringes and diffraction phenomena by arranging at least part of the sound-transmitting holes arranged in a two-dimensional quasi-crystal array on the base material of the sound-transmitting curtain.

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 Patents(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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