Off-axis Parabolic Mirrors SPA series

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Off-axis Parabolic Mirrors SPA series

High-Precision, High-Quality

  • Surface accuracy of λ/6 has been achieved by a newly-developed latest replicating technology (conventional Shimadzu product:λ/2).
  • Stable quality due to premium quality master mirrors.
  • Proven mass-production technology secures steady supply of large quantities.

 

Off-axis parabolic mirror

This aspherical mirror, which focuses parallel light to the focus point without aberrations, or converts a point light source from the focuse point into parallel light without aberrations, is used in spectroscopic systems that require high resolution.

Product List (Table of Code Number)

Code Number*1 On-axis focal length
f(mm)		 Off-axis focal length
f'(mm)		 Off-axis angle
θ(°)		 Dimensions W×H(mm) Effective area FA(mm) Central thickness T(mm)
SPA 275-07-6060 275 279.1 7 60×60 Φ56 16
SPA 350-03-4040 350 351 3 40×40 Φ36 10

*1:Code Number Meaning :

Code Number Meaning

Specifications

Classification Replica parabolic mirror*2
Blank Material Soda glass
Dimensional Tolerance(W,H) 0/-0.2 mm
Central Thickness Tolerance(T) ±0.2 mm
On-axis Focal Length Tolerance(f) ±0.5%
Off-axis Angle Tolerance(θ) ±10'
Surface Accuracy Within λ /6*3
Effective area(FA) Ref table
Coating Aluminum
Scratches & Digs 80-50(as per MIL-O-13830A)

*2:Paraboloidal surface is formed by resin.
*3:λ =632.8nm
※RoHS compliant (Directive 2011/65/EU + (EU)2015/863 on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment)
※Thermal and Humidity Conditions for Storage:0℃ to 50℃, 50% RH max.(no conensation) *When temperature is from 0℃ to 40℃, humidity should be 80% RH max.

Schematic Diagram

Schematic Diagram
  • Paraboric Mirrors other than standard products are available.
  • Specifications are subject to change without notice for improvement.
  • OEM prices are also available. Please contact Shimadzu for details.

 

For more information, please contact us.

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