Metal projection screen Main Specifications: Gain Gain is a digital representation of the projection screen material with reflective properties of intrinsic (brightness of different angles). To complete projection diffuse scattering (i.e. vertical and horizontal direction of 180 degrees are the same reflectance reflecting surface) of the light projected on a certain, then the reflection brightness is set to 1. Then under the same conditions, in the direction perpendicular to the screen frame projection light projected same screen customization, brightness was measured on the same central point and the points of the arc, the brightness and gain complete diffuse scattering intensity ratio is called the screen. Gain a measure of the ability to screen projection screen reflection of incident light, certainly, under the same circumstances of the incident light flux, the higher the brightness of the screen at the incident angle, the greater the gain. Usually dull white walls as a gain, if the gain is less than a rear projection screen projection screen customization, will weaken the incident light; if the projector screen gain is greater than 1, the incident light is reflected or refracted more. Zhangjiagang leaves perspective projection screen Product Description: Effective scattering angle greater than 150 degrees, the brightness of the screen surface coefficient greater than 01.6 This screen is used to transmit light viewing screen, gather gain direction of the transmitted light is consistent with the direction of the incident light projection screen, and its transmission. rate over ≥70%, with a light, soft, clear imaging, color reproduction is good, etc., the physical parameters of stability, the screen surface without fading, yellowing, brightness gain moderate, beneficial long view, mildew, moisture-proof, flame retardant, Odorless, an environmentally friendly material screen surface. Multimedia conference room projector screen, projection screen, Wuhan Spring Ram Jiuhua video provided by Wuhan Engineering Limited. Jiuhua Video Engineering Co., Ltd., Wuhan (www.jowa-tech.com) strong, credible, in Wuhan, Hubei control and adjustment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Wuhan Jiuhua innovative ideas will lead into the brilliant video and you work for a better future!