| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reflective screen capable of improving contrast even when a distance from an image source is short, and to provide a reflective projection system having the reflective screen. <P>SOLUTION: The reflective screen comprises: from the side where image light is projected, an optical functional layer; a Fresnel lens layer; and a light-reflecting layer formed on a lens face of the Fresnel lens layer. The optical functional layer includes light-transmitting portions arranged in parallel to one another to transmit light and light-absorbing portions formed between the light-transmitting portions to absorb light, in which the refractive index of the light-transmitting portion is larger than the refractive index of the light-absorbing portion. On a cross-sectional view in a layer thickness direction when the screen is posted with the arrangement direction of the light-absorbing portions aligned to a vertical direction, one of an upper interface and a lower interface of the light-absorbing portion with the light-transmitting portion is formed based on an incident direction of image light that is estimated to be incident to the optical functional layer. The reflective projection system includes the reflective screen. <P>COPYRIGHT: (C)2013,JPO&INPIT |
