TECHSPEC® Heat Absorbing Glass

  • Absorbs IR
  • Also Useful as a Shortpass Filter

Heat absorbing glass is used to reduce the amount of heat transmitted through an optical system. Schott KG filter glasses effectively absorb wavelengths beyond the visible spectrum. Unlike hot mirrors, which reflect the infrared wavelengths, KG filter glasses absorb the infrared radiation and then dissipate the heat into the air around the glass. Schott KG filter glasses can also be utilized as a shortpass filter, in order to pass the visible and block the IR. We recommend using a cooling fan with any of our heat absorbing products to reduce stress associated with excessive heat.

 View Legend
Description Stock No. Price In Stock  
Showing 1-17 of 17 Items | Sort by Spec
12.5mm x 12.5mm KG-1 Heat Absorbing Glass
NT45-720 $16.50Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 12.5 x 12.5
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
12.5mm Dia. KG-1 Heat Absorbing Glass
NT45-719 $16.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm Dia. KG-1 Heat Absorbing Glass
NT45-646 $25.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm x 25mm KG-1 Heat Absorbing Glass
NT45-647 $26.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 25 x 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm Dia. KG-1 Heat Absorbing Glass
NT45-648 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm x 50mm KG-1 Heat Absorbing Glass
NT45-649 $57.50Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 50 x 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
75mm x 75mm KG-1 Heat Absorbing Glass
NT45-721 $119.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 75 x 75
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-1
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
12.5mm Dia. KG-3 Heat Absorbing Glass
NT49-087 $17.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-3
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm Dia. KG-3 Heat Absorbing Glass
NT49-088 $30.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-3
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm x 25mm KG-3 Heat Absorbing Glass
NT49-089 $31.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 25 x 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-3
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm Dia. KG-3 Heat Absorbing Glass
NT49-090 $56.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-3
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm x 50mm KG-3 Heat Absorbing Glass
NT49-091 $57.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 50 x 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-3
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
12.5mm Dia. KG-5 Heat Absorbing Glass
NT49-092 $19.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-5
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm Dia. KG-5 Heat Absorbing Glass
NT49-093 $36.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-5
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
25mm x 25mm KG-5 Heat Absorbing Glass
NT49-094 $37.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 25 x 25
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-5
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm Dia. KG-5 Heat Absorbing Glass
NT49-095 $66.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-5
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
50mm x 50mm KG-5 Heat Absorbing Glass
NT49-096 $67.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensions (mm) 50 x 50
Dimensional Tolerance (mm) ±0.25
Surface Quality 60-40
Thickness (mm) 3
Thickness Tolerance (mm) ±0.38
Substrate KG-5
Reflection Factor Pd 0.92
Density (g/cm3) 2.53
Operating Temperature (°C) 300 Maximum
RoHS Exempt
1476.gif

Related Documents