Barco MGP 15 Dicom Theater Instruction Manual download pdf (Page 20)

3. Installation Guidelines

3.4 Lenses

Overview

• Lenses

• Lens formulas

• Lens installation

• Removing the lens

• Cleaning the lens

3.4.1 Lenses

Available lenses

The following lenses are available, or will become available (contact a BARCO service center) as an option :

Lenses

Standard version

QVD(0.85:1)

R9841220

QVD(1.3-1.8:1)

R9840950

QVD(1.9-2.6:1)

R9840960

QVD(3.0-6.0:1)

R9840970

QVD(7:1)

R9841230

SVD(2.0-2.5:1)

R9841240

The QVD (0.85:1) is to be used in ON Axis configuration only.

Shifting the lens vertically will not guarantee optimal image quality.

3.4.2 Lens formulas

Formulas

Metric Formulas (meter) Inch formulas (inch)

QVD(0.85:1) PD = -0.034 + 0.801 x SW + 0.0086 /SW PD = -1.34 + 0.801 x SW + 13.35 /SW

QVD(1.3-1.8:1) PDmin = 0.019 + 1.216xSW + 0.028/SW

PDmax = -0.001 + 1.584xSW + 0.074/SW

PDmin = 0.75 + 1.216xSW + 43.4/SW

PDmax = -0.04 + 1.584xSW + 115/SW

QVD(1.9-2.6:1) PDmin = 0.052 + 1.731xSW - 0.014/SW

PDmax = 0.11 + 2.33xSW - 0.059/SW

PDmin = 2.05 + 1.731xSW - 21.7/SW

PDmax = 4.33 + 2.33xSW - 91.8/SW

QVD(3.0-6.0:1) PDmin = 0.048 + 2.795xSW - 0.042/SW

PDmax = 0.06 + 5.6xSW - 0.041/SW

PDmin = 1.89 + 2.795xSW - 65/SW

PDmax = 2.36 + 5.6xSW - 63.4/SW

QVD(7:1) PD = 0.013 + 6.35xSW + 0.005/SW PD = 0.51 + 6.35xSW + 8.35/SW

SVD(2.0-2.5:1) PDmin = -0.139 + 1.733xSW + 0.1/SW

PDmax = 0.005 + 2.224xSW - 0.00862/SW

PDmin = -5.47 + 1.733xSW + 153/SW

PDmax = 0.2 + 2.224xSW - 13.3/SW

Lens program to calculate the projector distance is available on the BARCO web site :

ttp://www.barco.com/projection_systems/customer_services/lens_program.asp

16 R5976741 MGP 15 MEDICAL GRADE PROJECTOR 28/04/2004

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Barco MGP 15 Dicom Theater Instruction Manual Page 20

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