OPTICAL AND LASER DEVICES

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Aspherical Mirrors

Off-axis Parabolic Mirrors SPA series

High-Precision, High-Quality

Off-axis Parabolic Mirrors SPA series
  • 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.
  • Non-Use of Specific Chemical Substances*1

*1. RoHS Directive: Directive on the restriction of the use of certain hazardous substances (mercury, cadmium, lead, hexavalent chromium, PBB and PBDE) in the EU. (EU Directive 2011/65/EC)

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

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(※1) Code Number Meaning :
Product List

Specifications

Classification Replica parabolic mirror*1
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*2
Effective area(FA) Ref table
Coating Aluminum
Scratches & Digs 80-50(as per MIL-O-13830A)
Thermal and Humidity Conditions for Storage 0°C to 50°C,50% RH max.(no conensation) *When temperature is from 0°C to 40°C,humidity should be 80% RH max.

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(*1):Paraboloidal surface is formed by resin.
(*2):λ =632.8nm

Schematic Diagram

Schematic DiagramSchematic 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.

This page may contain references to products that are not available in your country. Please contact us to check the availability of these products in your country.

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