Evaluation of the ViewSonic PF815 4 x 3 Aspect Ratio, 22-Inch Diagonal Color Monitor
Abstract
NIDL does not certify the ViewSonic PF815 color monitor as being suitable for IEC workstations requiring stereoscopic performance. NIDL rates this color monitor as "A" in monoscopic, but "C" in stereoscopic mode for the Image Analyst and Cartographer applications. The 1-pixel-on/1-pixel-off contrast modulation over the whole screen in monoscopic mode is excellent for a CRT color monitor. The "C" rating results from the maximum vertical refresh rate of 55 Hz per eye in stereo mode. This is below the IEC Working Group specification of 60 Hz per eye. The monitor passes the stereo extinction requirement of 15:1 with StereoGraphics CrystalEyes shutter glasses at 50 Hz per eye. The flat face CRT in the PF815 is an aperture grill technology, much like the aperture grill Trinitron CRT used in Sony monitors. Originally, NIDL certified as acceptable for the IEC workstation the View Sonic P817 color CRT monitor. But, the manufacturer withdrew this product from the market. NIDL purchased the new flat face ViewSonic PF815 monitor to determine if this could be an acceptable color monitor in place of the P817. As we see from the discussion above, NIDL does not certify the PF815 monitor. NIDL evaluated two new monitors from Cornerstone and Eizo that can achieve the 60 Hz per eye minimum vertical refresh rate needed for stereo mode acceptability. These are shown in the following table along with the PF815 and other color CRT monitors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 29, 2000
- Accession Number
- ADA406667