ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings

COLD MIRRORS

A Cold Mirror is the inverse of the Hot Mirror, it reflects the visible and transmits the infrared. Their coatings are all first-surface variety and like the hot mirrors, are also deposited onto low expansion material such as borosilicate glass. These mirrors are usually used at a 45° angle of incidence in randomly polarized light.

 
 
 
 
 
 
 
 
BENEFITS 
  • Transmit near-IR and reflect visible light
COMMON APPLICATIONS
  • Projection systems
  • Photocopiers
  • Surgical and dental lighting
  • Film and photographic apparatus
  • Illumination systems
  • Scientific instruments

Cold Mirror General Specifications

Thickness:  3.0mm ±0.5mm
Size Tolerance:  +0.0mm/-0.5mm
Min. Clear Aperture:  95% of outside dimension
Substrate Material:  Borosilicate glass
Flatness:  5–10 waves per 25mm
Parallelism:  3 arc minutes or better
Surface Quality:  80/50 per MIL-O-13830
Humidity and Abrasion:  Per MIL-C-675A
Max. Operating Temperature:  +200°C
Mechanical: Unmounted  

     

PART NO.
DESCRIPTION
1 - 5 pcs.
> 5 pcs.
Stock Status
Buy
Available Items
645FK84-25
Cold Mirror, 25mm diameter x 3mm thick
$46.00
$44.00
In Stock
Qty To Buy:
Filter TypeCold Mirror
Transmission³85% average from 800 to 1200nm
Blocking
Size+0/-0.5mm
Thickness3.0 +0.5/-0.5 mm
Operating Temp. (°C.)+200 max.
CSV File (typical)N/A
ChartN/A
QuantityPrice
1 - 5 pcs.$46.00
> 5 pcs.$44.00

Estimated Delivery: 2-3 Days
645FK84-50
Cold Mirror, 50mm diameter x 3mm thick
$67.00
$64.00
In Stock
Qty To Buy:
Filter TypeCold Mirror
Transmission³85% average from 800 to 1200nm
Blocking
Size+0/-0.5mm
Thickness3.0 +0.5/-0.5 mm
Operating Temp. (°C.)+200 max.
CSV File (typical)N/A
ChartN/A
QuantityPrice
1 - 5 pcs.$67.00
> 5 pcs.$64.00

Estimated Delivery: 2-3 Days
645FK84-50S
Cold Mirror, 50mm x 50mm x 3mm thick
$78.00
$74.00
In Stock
Qty To Buy:
Filter TypeCold Mirror
Transmission³85% average from 800 to 1200nm
Blocking
Size+0/-0.5mm
Thickness3.0 +0.5/-0.5 mm
Operating Temp. (°C.)+200 max.
CSV File (typical)N/A
ChartN/A
QuantityPrice
1 - 5 pcs.$78.00
> 5 pcs.$74.00

Estimated Delivery: 2-3 Days