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All Products / Optics / SCHOTT Optical Components / SCHOTT Colored Glass Heat Absorbing Shortpass Filters
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SCHOTT KG5, 25mm Dia., 3mm Thick, Colored Glass Heat Absorbing Shortpass Filter

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Stock #49-093 Contact Us
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£30.60
Qty 1-10
£30.60
Qty 11+
£27.20
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Specifications

General

Type:
IR Cut-Off Filter

Physical & Mechanical Properties

Diameter (mm):
25.00
Thickness (mm):
3.00 ±0.38
Dimensional Tolerance (mm):
±0.25
Bevel:
Protective as needed

Optical Properties

Glass/Filter Number:
SCHOTT KG5
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Heat Absorbing Glass
Coating:
Uncoated
Index of Refraction (nd):
1.51
Surface Quality:
60-40
Reflection Factor Pd:
0.92
Wavelength Range (nm):
300 - 2700

Material Properties

Density (g/cm3):
2.53
Transformation Temperature (°C):
565

Environmental & Durability Factors

Operating Temperature (°C):
300 Maximum

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 223:
Compliant
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Certificate of Conformance:
View
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Product Details

  • SCHOTT KG Colored Glass Substrates
  • Absorb Infrared Radiation
  • Standard Sizes with 1, 2, or 3mm Thickness

SCHOTT Colored Glass Heat Absorbing Shortpass Filters feature SCHOTT’s KG color glass, providing excellent absorption of infrared radiation. These filters can also be used as shortpass filters, passing visible wavelengths while blocking infrared radiation. SCHOTT Colored Glass Heat Absorbing Shortpass Filters are ideal for protecting sensitive components from heat generated by high intensity illumination systems. Custom sizes from 5 to 160mm are available upon request; for more information, visit our Colored Glass Filter Manufacturing capabilities webpage.

Filter Simulation Software

Click here to download SCHOTT’s colored glass filter calculation program which can be used to calculate the internal transmittance and external transmission of each SCHOTT glass type. The program can simulate the performance of individual filters with user specified thickness or of stacked filters with varying glass types and thicknesses.

Interactive transmission curves are also available here.

Immediate Custom Quotes Available

If you have a need for any round, square, or rectangular size of a SCHOTT Colored Glass Heat Absorbing Shortpass Filter in dimensions between 5mm and 50mm, please visit our Colored Filter Glass Tool.  We’ll provide an immediate quote, and can deliver the part to your requested size in approximately 2 weeks.  A full list of standard manufacturing tolerances and restrictions are listed.  For fully customized filters to your requirements, visit our Customized Optical Filter Glass Capabilities page.

Technical Information

Quote Your Size

Please enter your required specifications here:
Glass Type
  • BG - Blue, blue-green, and multiband
  • GG - Colorless to yellow, IR transmitting
  • KG - Colorless glasses, high VIS transmission and IR absorption
  • NG - Neutral density glasses with uniform attenuation in VIS
  • OG - Orange glasses, IR transmitting
  • RG - Red and black glasses, blocking VIS, IR transmitting
  • UG - Black and blue glasses, UV transmitting
  • VG - Green glasses
  • WG - Colorless glasses w/ different UV cut-offs, transmitting in VIS and IR
Filter Number
Thickness (mm) Select 1, 2 or 3 mm.
For any other thicknesses, please contact our product support team
Shape If you require any other shape, please contact our product support team
Diameter (mm) Minimum: 5 mm, Maximum: 49 mm diameter.
Please contact product support to request any filters with different diameters
This size filter is outside of our standard range. Please contact us to discuss manufacturing feasibility and get a custom quote.
Length (mm) Minimum: 5 mm, Maximum: 49 mm.
Please contact product support to request filters with different dimensions
This size filter is outside of our standard range. Please contact us to discuss manufacturing feasibility and get a custom quote.
Width (mm) Minimum: 5 mm, Maximum: 49 mm.
Please contact product support to request filters with different dimensions
This size filter is outside of our standard range. Please contact us to discuss manufacturing feasibility and get a custom quote.
Quantity Maximum quantity 25 pcs.
For larger volumes, please contact our product support team
Typical 3-4 week delivery. Delivery date to be confirmed at time of order.
Standard Manufacturing Tolerances:
Edge length and diameter +/-0.2 mm
Thickness For ≤ 1mm: ± 0.1mm
For > 1 – 3mm: ± 0.2mm
Surface Quality 60 – 40
Surface Accuracy ≤8 Waves
Parallelism ≤3 arcmin
Clear Aperture ≥90%
Edges & Bevels Round parts ≥ ∅5mm: polished edges & protective bevel
Square & rectangular parts < 50 x 50mm: polished edges, no bevel
Edge Chips For ≤ ∅80mm: < 0.3mm (5/E0.3),
for ≥ ∅81mm < 0.6mm (5/E0.6)

Surface quality according to DIN ISO 10110:
Polishing quality P2
Defects 5/3 x 0.63
All edges machined
Round filters with chamfer max. 0.5mm, square and rectangular < 50x50mm without chamfer
Edge chips permitted up to 5/E0.3
General Information SCHOTT Optical Filter Glass:
BG Blue, blue-green, and multiband glasses
GG Nearly colorless to yellow glasses, IR transmitting
KG Virtually colorless glasses with high transmission in the visible and absorption in the IR
NG Neutral density glasses with uniform attenuation in the visible range
OG Orange glasses, IR transmitting
RG Red and black glasses, blocking visible, IR transmitting
UG Black and blue glasses, UV transmitting
VG Green glasses
WG Colorless glasses with different cut-offs in the UV, transmitting in the visible and IR ranges
Note: The spectral curves above show the internal transmittance of the individual optical filter glasses
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