论文部分内容阅读
如果要观看100英寸以上的大尺寸画面,相比平板电视,使用投影系统更为简单易行。只是投影系统对环境光的控制要求非常高,小小的漏光都会对投影画面造成难以估计的影响。为此,不少人在家中建立一个具备完善遮光条件的空间以求获得更佳的画面表现,可是并非所有人都愿意或有条件建立一个这样的“黑暗”环境,在保留客厅环境不变的情况下,加入投影系统才是他们所追求的。投影幕是影响投影成像质量的关键因素,投影画面主要是靠投影幕反射投影光线而形成的。一般家用的投影幕,如白塑幕和灰幕,由于属于漫反射的材质,拥有广宽的可视角度固然是优点,相对地也极易受到外界光线的干扰,严重影响画面的成像。于是针对强光环境应用的金属复合材质的投影幕诞生了,并大大改善了投影系统在遮光条件较弱情况下的画质表现。最近几年,这种高性能的幕料还不断更新与改进,并非只是简单地提高增益而牺牲可视角度的方式来实现,而是通过改变幕料的特性来实现抗环境光的能力。SI(Screen Innovations)最近就带来了一款全新的强光幕Black Diamond(黑钻),增益仅为0.8,半值增益角度达到了可观的44°,称得上目前强光幕的代表作。
If you want to watch a large screen more than 100 inches, compared to flat-panel TVs, using the projection system is more simple and easy. Just the projection system for the control of ambient light is very high, a small light leakage will have unpredictable impact on the projection screen. To this end, many people at home to create a room with a perfect shading conditions in order to get a better picture performance, but not everyone is willing or conditional to establish such a “dark ” environment, the living room environment is not preserved Change the case, join the projection system is what they are after. Projection screen is a key factor affecting the quality of projection imaging, the projection screen is mainly formed by projection projection screen reflecting light projection. General household projection screen, such as white plastic curtain and gray screen, due to the diffuse reflection of the material, with a wide range of viewing angle is of course advantages, is also relatively easy to be outside light interference, seriously affecting the imaging screen. As a result, the projection screens for metal composite materials for bright light environments were born, and the image quality performance of the projection system under weak light-shielding conditions was greatly improved. In recent years, this high-performance screen continuously updated and improved, not just simply increase the gain at the expense of viewing angle to achieve, but by changing the characteristics of the curtain to achieve the ability to resist ambient light. SI (Screen Innovations) recently brought a new Black Diamond (black diamond) with a gain of only 0.8 and an impressive 44 ° half-value gain, making it the highlight of today’s light curtain.