Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

Data Sheet ® DATA SHEET Lead Glass RD50 SCHOTT AG Density Notes RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content

Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3   λc (τ i = 0.5) [nm] = 780 ± 9 RD 50 λ s ( τ i, U = 0.00001) [nm] = 610 Transformation temperature

λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion 1. Optical propertiesα [10-6/K] 9.5 -30/+70°C -6 α20/300°C [10 /K] 10.5 -6 α20/200°C [10 /K]   1.1 Refractive Index n index Temperature coefficient 

ni (365.0 nm) = 1.590 TK [nm/°C] 0.22 All data wihout tolerances are to be

nh (404.7 nm) = 1.581 understood to be reference values. Guaranteed values are only those 1.2 Transmittanceng (435.8 nm) = 1.576 data nF' (480.0 nm) = 1.570 values listed in the section Sellmeier coefficients on request "Spectral values guaranteed". 1.2.1 Spectral transmittance τ (((λλλ ))) Colorimetric evaluation τ (λ ) 1.2.1.1 τIlluminant (( λλ )  curveA (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K) d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3 x x τ (λ ) x y y y   Y  Y  λ Y λd [nm] λd [nm] λd [nm] 1.2.1.2 τ (((Peλλλ )))  individual valuesPe in % ( = 10 mm) Pe

τ λ  τ   1.2.1.3 Edge wavelength ( = 5.0 mm)

λ τ  

1.2.2 Luminous transmittance τττ v as a function of thickness

 τ  τ          

STATUS: 01.12.14 Page 1/2 Further explanations see 'Optical Filters 2013' catalogue 2. Thermal properties

2.1 Viscosities and corresponding temperatures     η  ϑ                    2.2 Transformation temperature  in °C 

2.3 Coefficient of thermal expansion ααα 2.3.1 Coefficient of mean linear thermal expansion ααα (20 °C;300 °C) in 106 K1   2.4 Fuseability 

2.5 Mean specific heat capacity  p(20 °C to 100 °C) in J/(g — K) 

2.6 Thermal conductivity λλλ in W/ (m—K) for 50 °C     

1 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

Data Sheet ® DATA SHEET Lead Glass RD50 SCHOTT AG Density Notes RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content

Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3   λc (τ i = 0.5) [nm] = 780 ± 9 RD 50 λ s ( τ i, U = 0.00001) [nm] = 610 Transformation temperature

λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion 3. Mechanical propertiesα [10-6/K] 9.5 -30/+70°C -6 α20/300°C [10 /K] 10.5 -6 α20/200°C [10 /K] ρ ≥ 3.1 DensityRefractive Index n ρρ in g/cm³ Temperature coefficient 

ni (365.0 nm) = 1.590 TK [nm/°C] 0.22 All data wihout tolerances are to be

nh (404.7 nm) = 1.581 understood to be reference values. 12Guaranteed values are only those 3.2 Stressng (435.8 nm) = 1.576optical coefficient  in 1.02 — 10 m²/N  nF' (480.0 nm) = 1.570 values listed in the section Sellmeier coefficients on request "Spectral values guaranteed".

3.3 Breaking strength Colorimetric evaluation 

Illuminant A (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K) d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3 3.4 Young´sx modulus  inx kN/mm² x  y y y Y Y Y 3.5 Poisson´sλd [nm] ratio  λd [nm] λd [nm]  Pe Pe Pe

3.6 Torsion modulus  in kN/mm² 

3.7 Knoop hardness  0.1/20 

4. Chemical properties

4.1 Hydrolytic resistance acc. to DIN ISO 719

STATUS: 01.12.14 Page 1/2 Further explanations see 'Optical Filters 2013' catalogue  

  

4.2 Acid resistance acc. to DIN 12 116

 ◊

 ◊

4.3 Alkali resistance acc. to DIN ISO 695

 

 

4.4 Hazardous Substances

 

5. Electrical properties  

  

2 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

Data Sheet ® DATA SHEET Lead Glass RD50 SCHOTT AG Density Notes RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content

Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3  λc (τ i = 0.5) [nm] = 780 ± 9 RD 50 λ s ( τ i, U = 0.00001) [nm] = 610 Transformation temperature

λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion -6 6. Other propertiesα-30/+70°C [10 /K] 9.5 -6 α20/300°C [10 /K] 10.5 -6 α20/200°C [10 /K]

6.1 RefractiveLead Index equivalent n in %Temperature of glass coefficient thickness for different types of radiation ni (365.0 nm) = 1.590 TK [nm/°C] 0.22 All data wihout tolerances are to be

nh (404.7 nm) = 1.581 understood to be reference values.

ng (435.8 nm) = 1.576 Guaranteed values are only those 6.1.1 nX (480.0  radiation nm) = 1.570 quality values listed in the section F' Sellmeier coefficients on request "Spectral values guaranteed".   Colorimetric evaluation     

Illuminant A (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K) d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3 x x  x     y y y Y  Y Y λd [nm] λd [nm] λd [nm] Pe Pe Pe        ◊◊       ◊◊                                                 STATUS: 01.12.14 Page 1/2 Further explanations see 'Optical Filters 2013' catalogue                                                                        Measuring and Test Procedures TÜV NORD EnSys Hannover GmbH & Co. KG (23.06.2009)  

  

3 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

Data Sheet ® DATA SHEET Lead Glass RD50 SCHOTT AG Density Notes RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content

Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3  λc (τ i = 0.5) [nm] = 780 ± 9 RD 50 λ ( τ = 0.00001) [nm] = 610 s i, U Transformation temperature

λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion 6.1.2 Radionuclide -6 α-30/+70°C [10 /K] 9.5 -6 α20/300°C [10 /K] 10.5  -6 α20/200°C [10 /K]         Refractive Index n Temperature coefficient

ni (365.0 nm) = 1.590  TK [nm/°C] 0.22 All data wihout tolerances are to be

nh (404.7 nm) = 1.581 understood to be reference values. Guaranteed values are only those ng (435.8 nm) = 1.576 nF' (480.0 nm) = 1.570 values listed in the section Sellmeier coefficients on request "Spectral values guaranteed".         Colorimetric evaluation

Illuminant A (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K) d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3    x x x  y y  y     Y Y Y λd [nm] λd [nm] λd [nm] Pe Pe  Pe                                                                     STATUS: 01.12.14 Page 1/2 Further explanations see 'Optical Filters 2013' catalogue                                         Measuring and Test Procedures TÜV NORD EnSys Hannover GmbH & Co. KG (23.06.2009)  

  

4 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

Data Sheet ® DATA SHEET Lead Glass RD50 SCHOTT AG Density Notes RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content

Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3  λc (τ i = 0.5) [nm] = 780 ± 9 RD 50 λ ( τ = 0.00001) [nm] = 610 s i, U Transformation temperature

λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion 6.1.3 Monoenergetic photon radiation-6 α-30/+70°C [10 /K] 9.5 -6 α20/300°C [10 /K] 10.5  -6 α20/200°C [10 /K]         Refractive Index n Temperature coefficient

ni (365.0 nm) = 1.590  TK [nm/°C] 0.22 All data wihout tolerances are to be understood to be reference values. nh (404.7 nm) = 1.581 ng (435.8 nm) = 1.576 Guaranteed values are only those values listed in the section nF' (480.0 nm) = 1.570 Sellmeier coefficients on request "Spectral values guaranteed".         Colorimetric evaluation

Illuminant A (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K) d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3    x x x  y y  y     Y Y Y

λd [nm] λd [nm] λd [nm] Pe Pe  Pe                                     Measuring and Test Procedures TÜV NORD EnSys Hannover GmbH & Co. KG (23.06.2009) 

STATUS: 01.12.14 Page 1/2 Further explanations see 'Optical Filters 2013' catalogue 7. Annex  

  

5 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEETData Sheet ® Lead Glass RD50  Density Notes  SCHOTT AG RG780 ρ [g/cm3] 2.94 Colloidally colored glass Longpass filter Reflection factor Bubble content  Pd 0.908 Bubble class 3

Reference thickness Chemical Resistance d [mm] 3 FR class 5.0 Specification SR class 53.4 PCP Spectral values guaranteed AR class 1.3 λc (τ i = 0.5) [nm] = 780 ± 9  λ s ( τ i, U = 0.00001) [nm] = 610 Transformation temperature RD 50 λp ( τ i, L = 0.97) [nm] = 900 Tg [°C] 552

Thermal expansion -6 α-30/+70°C [10 /K] 9.5 -6 α20/300°C [10 /K] 10.5 -6 α20/200°C [10 /K]

Refractive Index n Temperature coefficient

ni (365.0 nm) = 1.590 TK [nm/°C] 0.22 All data wihout tolerances are to be nh (404.7 nm) = 1.581 understood to be reference values. 

ng (435.8 nm) = 1.576 Guaranteed values are only those

nF' (480.0 nm) = 1.570 values listed in the section Sellmeier coefficients on request "Spectral values guaranteed". 

Colorimetric evaluation Illuminant A (Planck T = 2856 K) Illuminant Planck T = 3200 K Illuminant D65 (TC = 6504 K)  d [mm] 1 2 3 d [mm] 1 2 3 d [mm] 1 2 3

x x x y y y  Y Y Y

λd [nm] λd [nm] λd [nm] Pe Pe Pe 



 λ

 

 

  

 

STATUS: 01.12.14 Page 1/2

Further explanations see 'Optical Filters 2013' catalogue 









 



 







   SpectralTransmittance Glass:of Type RD 50 

        



  τ 

 

6 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY