Light source and display system incorporating same
    14.
    发明授权
    Light source and display system incorporating same 有权
    光源与显示系统相结合

    公开(公告)号:US08922733B2

    公开(公告)日:2014-12-30

    申请号:US13502060

    申请日:2010-10-22

    IPC分类号: G02F1/1335 F21V8/00

    摘要: Light sources are disclosed. A disclosed light source includes an optically reflective cavity that includes an input port for receiving light and an output port for transmitting light, a lamp that is disposed at the input port, and an optical stack that is disposed at the output port. The optical stack includes a forward scattering optical diffuser that is disposed at the output port and has an optical haze that is not less than about 20%, and an optical film that is disposed on the optical diffuser. The optical film enhance total internal reflection at the interface between the optical film and the optical diffuser. The optical film has an index of refraction that is not greater than about 1.3 and an optical haze that is not greater than about 5%. The optical stack also includes a reflective polarizer layer that is disposed on the optical film. Substantial portions of each two neighboring major surfaces in the optical stack are in physical contact with each other.

    摘要翻译: 公开了光源。 所公开的光源包括光反射腔,其包括用于接收光的输入端口和用于传输光的输出端口,设置在输入端口处的灯以及设置在输出端口处的光学堆叠。 光学堆叠包括设置在输出端口并具有不小于约20%的光学雾度的前向散射光学漫射器,以及设置在光学漫射器上的光学膜。 光学膜增强了在光学膜和光学扩散器之间的界面处的全内反射。 光学膜的折射率不大于约1.3,光学雾度不大于约5%。 光学堆叠还包括设置在光学膜上的反射偏振器层。 光学堆叠中每两个相邻的主要表面的实质部分彼此物理接触。

    Optical film for preventing optical coupling
    20.
    发明授权
    Optical film for preventing optical coupling 有权
    用于防止光耦合的光学膜

    公开(公告)号:US08964146B2

    公开(公告)日:2015-02-24

    申请号:US13264254

    申请日:2010-04-14

    IPC分类号: G02F1/1335 F21V8/00

    摘要: Optical constructions are disclosed. A disclosed optical construction includes first and second optical layers having first and second major surfaces that face each other and are separated by an air gap. The first and second surfaces are susceptible to physically contacting each other at a location in the air gap. The optical construction further includes an optical film that is disposed at the location to prevent the first and second major surfaces from contacting each other at the location. The optical film has an effective index of refraction that is not greater than about 1.3.

    摘要翻译: 公开了光学结构。 所公开的光学结构包括第一和第二光学层,第一和第二光学层具有彼此面对并由气隙分开的第一和第二主表面。 第一和第二表面易于在气隙中的一个位置处彼此物理接触。 光学结构还包括光学膜,该光学膜设置在该位置处,以防止第一和第二主表面在该位置处彼此接触。 光学膜具有不大于约1.3的有效折射率。