Cooper Lighting Envoy Manual De Usuario

Envoy offers three optical distributions and a variety of light control media to optimize lighting performance and comply with local lighting ordinances.

The standard Envoy system features the main reflector contributing to both horizontal and vertical illumination. The upper reflector 

contributes 10% uplight, reducing the visual cave effect within the parking structure. 

Lighting design for parking structures normally follows specific published guidelines and design practices as defined by the Illuminating Engineering
Society of North America [IESNA]. IESNA publishes recommended guidelines to help facilitate garage lighting design. The following minimum guidelines
are established for safety and security of pedestrians and property within the space. 

In addition to the amount of light measured on the work plane, uniformity of light must be balanced as well. As with minimum footcandle values listed
on the above table, the maximum/minimum uniformity ratio within the space is an important element in minimizing eyestrain and creating an inviting
and safe environment. The IESNA recommended maximum/minimum uniformity ratio is no greater than 10:1. 

R O U N D [RD]

D R I V E   L A N E   S H I E L D  [DLS1]

DIRECTION 

OF TRAFFIC

C O N C E N T R A T E D   D O W N   L I G H T  [CD]

D R I V E   L A N E   S H I E L D  [DLS2]

H O U S E   S I D E   S H I E L D   1 2 0 ° [HS]

Horizontal Illuminance [On Floor]

Minimum Horizontal Footcandles [fc]*

Vertical Illuminance [60” Above Floor]

Minimum Vertical Footcandles [fc]*

1.0

0.5

2.0

1.0

1.0

0.5

50

25

1.0

0.5

2.0

1.0

*NOTE: IES Recommended Practices RP-20.

H O U S E   S I D E   S H I E L D   1 8 0 ° [HS]

Garage Exterior

DIRECTION 

OF TRAFFIC

DIRECTION 

OF TRAFFIC

Garage Exterior