Surgical Lens
The LI-3ER-EEL-.150 Asymmetric Symmetric Surgery Lens can be installed into recessed or surface-mounted luminaires. These biased diffuse microstructure lenses provide improved LED hiding power, smooth distribution, and both symmetrical (along axis) and asymmetrical (cross axis) lighting distributions. Unlike other linear optic lenses, lamp alignment has less impact on distribution.
The LI-3ER-EEL-.150 Asymmetric Symmetric Surgery Lens is ideally suited for surgical suite lighting or similar applications where an asymmetric distribution provides more light on a targeted work surface. A conductive grid that shields electromagnetic interference (EMI/RFI) can help the fixture comply with the requirements of MIL-STD-461(E) standard.
Radio Frequency Interference Suppression
This surgical lens comes with an RFI-suppressing grid of silver ink on the smooth side of the lens. The grid intercepts the radiated emissions from the lamps, which are then carried out to the fixture and dissipated through an electrical ground. This reduces the RFI transmitted to the space to a level below which RFI-sensitive equipment is affected. The RFI grid has been tested and complies with Military Standard 461A*.
NOTICE: RFI SUPPRESSION AND ELECTRICAL BALLAST Testing data for fixtures with electrical ballasts and clear acrylic lenses with RFI-suppressing grids have yielded a result that deviates from the Mil-Std specification (461A, 461D). The result is associated with the approximate 20kHz operating frequency of the ballasts and their harmonics (which differ markedly from those associated with magnetic ballasts). Further information about these tests may be obtained from Louvers International.
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