View Single Post
  #124  
Old 08-09-2018, 02:01 PM
Phil Nelson's Avatar
Phil Nelson Phil Nelson is offline
VideoKarma Member
 
Join Date: Jan 2006
Posts: 4,030
Quote:
Originally Posted by old_tv_nut View Post
I don't know how many layers the screen has and how much general diffusion is there in addition to the Fresnel. It would be interesting to check. Can you try looking at the picture from extreme right and left and extreme high and low, and see how far the viewing angle goes?
The screen appears to be a single layer, with a pattern of light horizontal lines (like extremely fine sandpaper scratches) on its rear surface and the pattern of concentric grooves on the front.

I looked at the screen from various angles, and tried to take some photos, and even a video, but the pics don't show anything very quantifiable, beyond "Yup, looks brighter head-on."

The brightness and contrast are clearly the best when you are looking head-on. The image looks quite good if you remain within an angle of about 45 degrees from the left or the right (or up or down). Beyond that, the picture is still coherent, but shown in shades of gray rather than vivid white & black.

Regards,

Phil
Reply With Quote