| 摘要 |
<p>A narrow viewing angle micro-bead projection screen includes a micro-bead reflecting material layer (1), a bonding layer (2) and a screen substrate layer (3). The micro-bead reflecting material layer (1) is adhered to the screen substrate layer (3) by the bonding layer (2). The micro-bead reflecting material layer (1) is made of glass micro-beads with a refractive index of 1.9 to 2.5. The screen substrate layer (3) can be made of hard surface material (4), coiling material (5), or flexible material (6) according to need.</p> |
