The following simulations show the effects of different glazings on video display terminal glare, etc.

About the Office Animation

Physical Setup of the Office and Simulation

• Office room dimensions: 10 feet wide (N-S) by 20 feet long (E-W)
• Glazing Clear opening dimensions: 10 feet by 5.75 feet
• West facing glazing three floors above street level
• CIE Clear skies with direct sun
• Building located in San Francisco (37.8 N latitude, 122.4 W longitude) in a mid-rise, office/industrial neighborhood
• Electrochromic device time sequence and spectral transmittance and reflectance measurements based 1 foot square prototype Tungsten Oxide (WO₃) devices provided by industry-leading glazing manufacturers.
• Dynamic exposure compensation with pcond foveal-weighted averaging applied to each frame

Sequence of Events

1. 15:00:00, sun obscured by a cloud, glass at full transmittance: Tvis=74%
2. 15:00:03, cloud moves away and direct sun enters the office
3. 15:00:12, electrochromic glazing begins to color at its maximum rate
4. 15:04:06 through 15:17:42, video is in 10X time lapse to prevent boredom
5. 15:17:42, electrochromic glazing reaches its maximum coloration: Tvis=3.2%
6. 15:17:48, the cloud moves in front of sun obscuring all direct sun
7. 15:17:54, electrochromic glazing begins to bleach at its maximum rate
8. 15:22:18, electrochromic glazing reaches its maximum bleached: Tvis=74%