D-571  ADJUSTABLE REFERENCE MIRROR

 

 

The Model D-571 5.8 inch (147 mm) Diameter Adjustable Reference Mirror provides a large reflecting surface that is perpendicular to the mounting plane.  Two extremely fine adjustment screws simplify precision alignment. 

 

 

  • General lab and shop reference mirror
  • Flat to 1/10 wave over working surface
  • Adjustable to fractions of one arc second
  • Flatness certified traceable to NIST 

 

The Model D-571 Adjustable Reference Mirror offers a clear 5.8 inch (147 mm) diameter working surface.  The adjustment screws tilt the mirror approximately 1.0 second for each 1° turn.  A series of Model D-569 or Model D-571 mirrors are often used for the purpose of simulating long distances.  Both mirrors are basic tools recommended for any laboratory or precision shop, and most aerospace ground support installations.

 

Specifications:

Flatness: λ/10
Surface Quality: 80/50 per MIL-O-13830
Material: Mirror: Fused Silica
Mount: Brass
Coating: Aluminum with protective overcoat per MIL-M-13508
Mirror Dimensions: Diameter: 5.8 inch (147 mm)
Thickness: 0.875 inch (22 mm)
Overall Dimensions: Height: 9.75 inch (248 mm)
Width: 7.5 inch (190 mm)
Depth: 7 inch (178 mm)
Height to Mirror Center: 6 inch (152 mm)
Finish: Ivory enamel
Weight: 25 lbs (11.4 kg)
Shipping Weight: 30 lbs (13.6 kg)