阅读说明：本技术 照明设备 (Lighting device ) 是由 杰拉尔德·菲特雷尔 于 2013-10-24 设计创作，主要内容包括：本发明涉及一种用于照明至少一个空间光调制器设备(SLM)的照明设备。所述照明设备包括用于照明至少一个空间光调制器设备(SLM)的带有至少一个光源(LS)的至少一个光源设备；光导元件(LG),从光源(LS)发出的光通过所述光导元件(LG)传播；以及在光导元件(LG)的顶部或内部布置的至少一个光去耦元件(VG)。至少一个光去耦元件(VG)被提供为用于在光导元件(LG)中传播到至少一个空间光调制器设备(SLM)的方向中的光的波场的去耦。光导元件(LG)具有显著低于或者至少等于至少一个光去耦元件(VG)的折射率的折射率。以从光去耦元件(VG)去耦的平面波的角谱具有取决于所要求的照明设备的使用的预定值的这种方式,通过折射率之间的差来确定进入光去耦元件的波场的入射角。(The invention relates to an illumination device for illuminating at least one spatial light modulator device (SLM). The illumination device comprises at least one light source device with at least one Light Source (LS) for illuminating at least one spatial light modulator device (SLM); a light guide element (LG) through which light emitted from a Light Source (LS) propagates; and at least one light decoupling element (VG) arranged on top of or inside the light guiding element (LG). At least one light decoupling element (VG) is provided for decoupling a wave field of light propagating in the light guiding element (LG) in a direction to the at least one spatial light modulator device (SLM). The light-guiding element (LG) has a refractive index which is significantly lower than or at least equal to the refractive index of the at least one light decoupling element (VG). The angle of incidence of the wave field entering the light decoupling element is determined by the difference between the refractive indices in such a way that the angular spectrum of the plane wave decoupled from the light decoupling element (VG) has a predetermined value depending on the required use of the lighting device.)

1. A device having a lighting device, comprising:

an array of pixels, each of which has a plurality of pixels,

a light source device is provided with a light source,

the light-guiding member is provided with a light-guiding element,

a coupling element for coupling light from the light source device into the light-guiding element, an

At least one decoupling element that couples light from the light guide element out of the light guide element and onto the pixel array to illuminate the pixel array and reflect image light from the pixel array.

2. The device of claim 1, further comprising an optical system configured to image light.

3. The apparatus of claim 1, wherein the pixel array is tilted with respect to the light guide element.

4. The device of claim 1, wherein the decoupling element is angularly selective, wherein the decoupling element is designed to direct light out of the light guiding element at a non-zero angle relative to a surface normal of the light guiding element.

5. A device as claimed in claim 1, in which the pixels of the pixel array are arranged to introduce an axial offset of incident light to direct light at a non-zero angle relative to a surface normal of the light-guiding element.

6. The device of claim 1, wherein the decoupling element comprises a polarization selective volume grating or a liquid crystal dispersed volume grating or a switchable grating.

7. The apparatus of claim 1, wherein the decoupling element is a transmission hologram.

8. The apparatus of claim 1, wherein the decoupling element is a multiplexed volume grating having a graded profile of diffraction efficiency.

9. The device of claim 1, further comprising at least one retarder between the decoupling element and the pixel array, wherein the decoupling element comprises a polarization selective volume grating.

10. The apparatus of claim 1, wherein the pixel array comprises a MEMS array or a liquid crystal-based pixel array.

11. The device of claim 1, wherein the light source device comprises a light source selected from the group consisting of a laser and a light emitting diode.

12. The device of claim 1, further comprising a lens or lens array interposed between the light source device and the light guide element.

13. The apparatus of claim 1, wherein the decoupling element comprises at least one field lens function.

14. A device having a lighting device, comprising:

an array of pixels;

a light source device;

a light guide member;

a diffractive coupling element configured to couple light from a light source into the light guiding element,

a diffractive decoupling element configured to couple light out of the light guide element,

the pixel array is configured to reflect light coupled out of the lightguide element as image light that passes through the diffractive decoupling element and the lightguide element.