Return to the thumbnail page Display/hide file information See previous file See next file

Showing the VU1 woven pattern projected onto the phosphor.

Showing the VU1 woven pattern projected onto the phosphor.

Click to view full size image

When lit, the VU1 lamps show this unusual sort of shadow mask projected onto the phosphor mask. It certainly is in the electron path as its size and shape doesn't really finalize until the lamp has settled. This may be for return current or it may act as a diffuser or beam director, functioning similarly to the way a shadow mask in a color TV may behave. While this looks like it's a pattern illuminated from behind, it isn't. This woven pattern is not visible when the lamp is off, and is not part of the phosphor. The slight RGB stippling you can see is NOT from the camera, but is visible on the bulb itself when lit, due to different phosphors used (Closeup in another pic in my gallery).

finally-inductive-1.png finally-inductive-startup-op3.gif vu1-2.png vu1-3.png

Light Information

Light Information

Manufacturer:VU1
Model Reference:R30
Lamp
Lamp Type:BR30
Filament/Radiator Type:CRT / Cathode Ray
Base:E26
Shape/Finish:BR30
Service Life:11000h
Fixture
Fixture Type:N/A
Electrical
Wattage:19.5
Voltage:120
Current:163mA
Optical
Lumen Output:500
Lumen Efficacy:25lm/watt
Color Temperature:3000k
Color Rendering Index:90
Physical/Production
Dimensions:6x4in
Factory Location:China
Fabrication Date:2015
Application/Use:Downlight

File information

File information

Download: Download this File
Filename:vu1-2.png
Album name:michilumin / Modern / HighEfficiency lighting
Keywords:Lamps
File Size:2705 KB
Date added:Apr 02, 2015
Dimensions:1595 x 1140 pixels
Displayed:76 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-106782
Favorites:Add to Favorites
© 2005-2019 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery