Apple MacBook (13-inch, Mid 2010) - Manual (Page 79)

79 Chapter 5 Last, but Not Least
Built-in Display
Adjust the angle of the display to optimize viewing in your environment. Do not force
the display if you meet resistance. The display is not meant to open past 135 degrees.
You can adjust the brightness of the screen when you take the computer from one
work location to another, or if the lighting in your work area changes.
More information about ergonomics is available on the web:
www.apple.com/about/ergonomics
Apple and the Environment
Apple Inc. recognizes its responsibility to minimize the environmental impacts of its
operations and products.
More information is available on the web:
www.apple.com/environment