LEED certified buildings save money and resources and have a positive impact on the health of occupants, while promoting renewable, clean energy. LEED, or Leadership in Energy & Environmental Design, is a green building certification program that recognizes best-in-class building strategies and practices.he key to success is making sure you're using the right tools. LEED v4 is backed by a supporting cast of tools and resources. 1  Discover which LEED v4 rating system applies to your project. 2  Get started.
The Process of Sight. All vision is based on the perception of electromagnetic rays. These rays pass through the cornea in the form of light; the cornea focuses the rays as they enter the eye through the pupil, the black aperture at the front of the eye.
This is not positive news from an energy point of view, but itâs important to recognize because preference is related to satisfaction. The solution may not be to raise light levels with its associated energy cost but to influence perception of light levels based on brightness contrast. Higher contrast correlates to perception of a higher light level. The challenge is that too much light can be tiring to the eye (or, in extreme cases, glaring).