Laser Line Coated Off-Axis Parabolic (OAP) Mirrors
• Through Holes Parallel to Focused and Collimated Beams
• Range of Metallic Coatings Available
• <50 Å RMS Surface Roughness
TECHSPEC® Off-Axis Parabolic (OAP) Mirrors with Alignment Through Holes are designed with two through
holes, one that aligns with the focal point of beams focused off the parabolic surface and the second parallel to
beams collimated by the surface. The hole placements allow for two beams to hit a target or sample simultaneously,
which is a technique used to take pump-probe measurements. These OAPs feature aluminum substrates and are diamond
turned with a surface roughness of <50 Å RMS that minimizes scatter. TECHSPEC® Off-Axis Parabolic Mirrors
with Alignment Through Holes are available coated with protected gold, protected aluminum, or UV enhanced
aluminum for integration into applications requiring high reflectance from the ultraviolet (UV) to the infrared (IR).
• <100 Å Surface Roughness for Low Scatter
• Diamond Turned Alignment Surfaces
• Ideal for Finite Conjugate Reflection
TECHSPEC® Off-Axis Ellipsoidal Mirrors are finite conjugate focusing mirrors used to image at a set angle.
These mirrors feature fixed conjugate image and object path lengths, providing up to 2,5 X magnification from
the object plane to the imaging plane. Off-Axis Ellipsoidal Mirrors are commonly found in Fourier-transform
infrared spectroscopy (FTIR) systems where broadband light sources require the use of metallic reflectors with
an off-axis design to meet space constraints. TECHSPEC® Off-Axis Ellipsoidal Mirrors feature a diamond turned
cylindrical surface on their base, with a radius equivalent to the distance to the major axis of the ellipse, for aligning
the mirror to the major axis as well as a diamond turned flat reference surface that is perpendicular to the major
axis. Please contact us if your application requires an Off-Axis Ellipsoidal Mirror with custom specifications.
Y-Offset
Offset Angle
Diamond Turned Flat
Reference Surface
108 +44 (0) 1904 788600 | Edmund Optics® N NEW PRODUCT NEW LOW PRICE
testing & detection targets illumination cameras imaging lenses microscopy lasers optomechanics optics
Substrate: Aluminum 6061-T6
Diameter Tolerance (mm): +0,0/-0,1
Focal Length Tolerance (%): ±1
Offset Angle (°): 90
Surface Figure, RMS: λ/8
Surface Roughness, Å RMS: <50
Coating Specification: Ravg >99,5% @ DWL, 45° AOI
• Dielectric Laser Line Coatings for 532 and 1064 nm
• Ideal for Collimating or Focusing Nd:YAG Laser Light
• >99,5% Reflectivity at Nd:YAG Design Wavelengths
TECHSPEC® Laser Line Coated Off-Axis Parabolic (OAP) Mirrors feature diamond turned aluminum substrates
coated with dielectric coatings for high reflection at 532 or 1064 nm laser lines. These high reflectivity
dielectric coatings are designed for laser applications that require higher performance than metallic coated
optics can provide. Standard imperial sizes are available with multiple focal length options, and mounting plates
with holes perpendicular to the optical axis are also available for benchtop integration. TECHSPEC Laser Line
Coated Off-Axis Parabolic (OAP) Mirrors are ideal for use with the fundamental or second harmonic of Nd:YAG
lasers to collimate or focus laser light. Please contact us if your application requires any of our standard Off-
Axis Parabolic Mirrors with a laser line coating.
Diameter Tolerance (mm): +0,00/-0,10
Focal Length Tolerance (%): ±1
Off-Set Angle (°): 90
Surface Figure, RMS: λ/8
Surface Roughness (RMS): <50 Å
Surface Quality: 80-50
Substrate: Aluminum 6061-T6
Y Offset (mm): 25,40
Through Hole Orientation:
1 x Parallel to Focused Beam
1 x Parallel to Collimated Beam
Through Hole Size (mm): 4,1
TECHSPEC® Off-Axis Parabolic Mirrors with Alignment Through Holes
Coating Effective Focal
Length EFL (mm)
Diameter
(mm)
Parent Focal
Length PFL (mm) Stock No. Price
UV Enhanced Aluminum 25,4 25,4 12,7 #11-768 €230,00
Protected Aluminum 25,4 25,4 12,7 #11-770 €219,00
Protected Gold 25,4 25,4 12,7 #11-772 €281,00
Call For OEM Quantity Pricing
Through Beam
Parallel to
Collimated Beam
Through Beam
Parallel to
Focused Beam
Off-Axis Parabolic Mirrors with Alignment Through Holes
NEW
Reflected Wavefront, RMS: λ/4
Surface Roughness (RMS): <100 Å
Surface Quality: 60-40
Substrate: Aluminum 6061-T6
TECHSPEC® Off-Axis Ellipsoidal Mirrors
Magnification Dimensions
(mm)
Object
Distance (mm)
Image
Distance (mm)
Offset
Angle (°)
Y Offset
(mm)
Protected Aluminum Protected Gold
Stock No. Price Stock No. Price
2X 25,40 x 25,40 25,40 50,80 72,89 38,10 #12-495 €250,00 #12-496 €295,00
2,5X 31,75 x 31,75 33,02 83,82 65,44 49,28 #12-497 €250,00 #12-498 €295,00
Call For OEM Quantity Pricing
Off-Axis Ellipsoidal Mirrors
Bottom View Side View
Image Distance
Focal Point 1
Cylindrical Surface with
Radius Equal to Distance from
Major Axis for Alignment
Object Distance
Ellipse Center Focal Point 2
TECHSPEC® Laser Line Coated Off-Axis Parabolic (OAP) Mirrors
Diameter (mm) Effective Focal
Length (mm)
Parent Focal
Length (mm)
532 nm 1064 nm
Stock No. Price Stock No. Price
12,7 12,7 6,35 #15-339 €265,00 #15-365 €265,00
12,7 25,4 12,7 #15-340 €265,00 #15-366 €265,00
12,7 203,2 101,6 #15-344 €265,00 #15-370 €265,00
25,4 25,4 12,7 #15-345 €275,00 #15-371 €275,00
25,4 50,8 25,4 #15-346 €275,00 #15-372 €275,00
25,4 203,2 101,6 #15-352 €275,00 #15-378 €275,00
50,8 50,8 25,4 #15-353 €470,00 #15-379 €470,00
50,8 190,6 95,3 #15-358 €470,00 #15-384 €470,00
Call For OEM Quantity Pricing
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