Visual display having adjustable diffusion strength
A display apparatus uses an LED array having an LED pixel pitch, having LED pixels emitting light with viewing angles θ. A transmissive diffuser panel is mounted with the LED array, having a directly-lit, diffuser panel surface spaced away from the LED array by an adjustable distance D. The distance D and the viewing angles θ being are effective to merge illumination from multiple LED pixels in the LED array on the directly-lit diffuser panel surface. A controller is connected to the LED array having circuitry to control the LED array in response to image data to induce display via the diffuser panel of a time varying image with spatially varying colors and intensities.
1. An apparatus, comprising:
a frame;
a light source on the frame;
a transmissive diffuser panel having a diffuser panel surface directly lit by the light source; and
an adjustable support member connected to the frame, which secures the diffuser panel in position relative to the light source, so that a region on the diffuser panel surface is spaced away from the light source by an adjustable distance D.
2. The apparatus of claim 1 , including a controller connected to the light source to induce a display in response to image data via the diffuser panel of a time varying image with spatially varying colors and intensities.
3. The apparatus of claim 1 , including a controller and a motor coupled to the adjustable support member, configured to adjust the adjustable distance D.
4. The apparatus of claim 1 , including
a motor coupled to the adjustable support member, configured to adjust the adjustable distance D; and
a controller connected to the light source and the motor to cause the motor to change the distance D over time in response to display control data, and to induce a display via the diffuser panel of a time varying image with spatially varying colors and intensities.
5. The apparatus of claim 1 , wherein the light source comprises an LED array.
6. The apparatus of claim 1 , wherein the diffuser panel surface includes a plurality of regions, including said first mentioned region, spaced away by adjustable different distances from the light source.
7. The apparatus of claim 1 , configured as a ceiling mounted fixture which orients the directly-lit, diffuser panel surface relative to a plane of a ceiling.
8. The apparatus of claim 1 , wherein the light source comprises an LED array arranged on a cylindrical form, and the directly-lit, diffuser panel surface is cylindrical.
9. The apparatus of claim 1 , wherein the light source comprises an LED array disposed on a planar form.
10. The apparatus of claim 1 , wherein the light source comprises an LED array including a plurality of panels arranged to face in different directions, and the diffuser panel surface includes a plurality of regions including said first mentioned region, spaced away by adjustable distances from corresponding panels in the plurality of panels.
11. The apparatus of claim 1 , configured for use in a soundscape environment in which a sound is produced in the environment, and including a controller connected to the light source in response to image data to induce display via the diffuser panel of an interpretable time varying image suggestive of a source of the sound.
12. A display apparatus, comprising:
a mount fixture for mounting;
a frame;
an LED array mounted on the mount fixture;
a transmissive diffuser panel having a diffuser panel surface directly lit by the light source;
an adjustable support member connected to the fixture, which secures the diffuser panel in position relative to the LED array, so that a region in the diffuser panel surface is spaced away from the LED array by an adjustable distance D; and
a controller connected to the LED array which controls the LED array in response to image data to induce a display via the diffuser panel of a time varying image with spatially varying colors and intensities.
13. The apparatus of claim 12 , wherein the mount fixture comprises a ceiling mount fixture for mounting relative to a plane of a ceiling, and the LED array is disposed on a cylindrical form, and the diffuser panel surface is cylindrical and concentric with the cylindrical form, and faces laterally relative to the plane of the ceiling.
14. The apparatus of claim 12 , wherein the mount fixture comprises a ceiling mount fixture for mounting relative to a plane of a ceiling, and the LED array is mounted on a planar form on the ceiling mount fixture, the planar form parallel to the plane of the ceiling.
15. The apparatus of claim 12 , including a motor coupled to the adjustable support member, configured to adjust the adjustable distance D.
16. The apparatus of claim 15 , wherein the controller is configured to control the motor to change the distance D over time.
17. The apparatus of claim 12 , including a plurality of adjustable support members, and wherein the diffuser panel surface includes a plurality of regions, including said first mentioned region, spaced away by adjustable different distances set by the plurality of adjustable support members from the light source.
18. The apparatus of claim 17 , wherein the controller is coupled to the adjustable support members and configured to change one or more of the different distances over time.
19. The apparatus of claim 12 , configured for use in a soundscape environment in which a sound is produced in the environment, and wherein the controller is coupled to a source of image data that causes generation of an interpretable time varying image suggestive of a source of the sound.
20. The apparatus of claim 12 , wherein the mount fixture comprises a wall mount fixture.