ASTRO ELECTRONIC
Dipl.-Ing. Michael Koch
Raabestr. 43     D-37412 Herzberg     Germany
Tel: +49 (0)5521 854265
www.astro-electronic.de        e-mail
Neue Referenz-Objektive für Interferometer
  New reference optics for interferometers		 If you want to see our new arrivals 
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For used interferometers click here

For USED reference optics click here

For new or used translation and tip/tilt stages click here

New Transmission spheres from MPF Optics
Surface Accuracy: 1/10, 1/20, 1/30 or 1/40 wave PVr

Standard Zygo Bayonet

Operating wavelength: 632.8nm

Operating temperature range: 22 +- 5 °C

Input beam diameter: 101.6mm for 4" or 152.4mm for 6"

Material of reference element: Fused Silica  

All MPF Transmission Spheres come in a wood box and include a test certificate.

Please ask for prices 


4" Objectives with internal Beam Expander: 4" f/0.55 EX 4" f/0.65 EX 4" f/0.80 EX 4" f/1.0 EX
Numerical Aperture 0.91 0.77 0.63 0.50
F-Number 0.55 0.65 0.80 1.0
Angular Aperture 128.5° 100.5° 77.0° 60.0°
Radius of Reference Surface RM  [mm] -25.50 -40.50 -61.50 -85.00
Maximum outside Sample Diameter DM allowed when accommodating Radii up to RM  [mm] 46 62 77 85.0
Maximum convex (concave) Radius that can be tested when outside Sample Diameter is larger than DM  [mm] 25.0 40.0 60.0 84.0
Diameter x Length [mm] 150 x 175 150 x 155 150 x 155 150 x 155
Weight [kg] 4.0 3.9 3.9 3.9
Wavefront Deformation for single pass [Waves PV] <2.5 <2.5 <2.0 <2.0
Surface defects (according to ISO):  5/ 60x0.25 5/ 60x0.25 5/ 60x0.25 5/ 60x0.25

 

4" Objectives: 4" f/0.75 4" f/1.1 4" f/1.5 4" f/1.9 4" f/2.9
Diverger 		4" f/3.3 4" f/4.8 4" f/7.2
Converger		 4" f/7.2
Diverger 		4" f/11
Converger		 4" f/11
Diverger
Numerical Aperture 0.67 0.46 0.33 0.26 -0.17 0.15 0.10 0.07 -0.07 0.05 -0.045
F-Number 0.75 1.1 1.5 1.9 2.9 3.3 4.8 7.2 7.2 11 11
Angular Aperture 82.3° 55.6° 38.9° 30.3° 21.0° 17.3° 12.1° 8.0° 8.0° 5.4° 5.4°
Radius of Reference Surface RM  [mm] -48.17 -65.50 -121.44 -163.12 230.0 -300.69 -449.0 -700.35 700.35 -1051.7 1051.7
Maximum outside Sample Diameter DM allowed when accommodating Radii up to RM  [mm] 63.4 61.0 80.9 85.3 85.0 90.2 94.5 97.5 97.5 98.5 98.5
Maximum convex (concave) Radius that can be tested when outside Sample Diameter is larger than DM  [mm] 47 65 120 162 -250 299 447 695 -705 1045 -1055
Diameter x Length [mm] 140 x 68 140 x 72 140 x 72 140 x 72 140 x 68 140 x 72 140 x 72 140 x 72 140 x 68 140 x 72 140 x 72
Weight [kg] 2.1 2.5 1.7 1.7   2.0 2.0 1.6 1.5 1.6 1.5
Wavefront Deformation for single pass [Waves PV] <2.0 <1.5 <1.5 <1.5 <1.5 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Surface defects (according to ISO):  5/ 60x0.25 5/ 60x0.25 5/ 60x0.25 5/ 60x0.25 5/ 40x0.25 5/ 40x0.25 5/ 40x0.25 5/ 20x0.25 5/ 20x0.25 5/ 10x0.25 5/ 10x0.25

 

Long Radius 4" Objectives: 4" f/15
Converger		 4" f/15
Diverger		 4" f/25
Converger		 4" f/25
Diverger		 4" f/35
Converger		 4" f/35
Diverger		 4" f/50
Converger		 4" f/50
Diverger		 4" f/65
Converger		 4" f/65
Diverger
Numerical Aperture 0.033 -0.033 0.02 -0.02 0.014 -0.014 0.01 -0.01 0.0077 -0.0077
F-Number 15 15 24.3 24.3 34.9 34.9 50 50 65 65
Angular Aperture 3.8° 3.8° 2.4° 2.4° 1.6° 1.6° 1.1° 1.1° 0.88° 0.88°
Radius of Reference Surface RM  [mm] -1517.0 1517.0 -2449.4 2449.4 -3520 3500 -5010 5010 -6500 6500
Maximum outside Sample Diameter DM allowed when accommodating Radii up to RM  [mm] 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
Maximum convex (concave) Radius that can be tested when outside Sample Diameter is larger than DM  [mm] 1520 -1510 2460 -2440 3500 -3490 4980 -5040 6450 -6450
Diameter x Length [mm] 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45
Weight [kg] 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Wavefront Deformation for single pass [Waves PV] <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Surface defects (according to ISO):  5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25

 

Very long Radius 4" Objectives: 4" f/75
Converger		 4" f/75
Diverger		 4" f/85
Converger		 4" f/85
Diverger		 4" f/100
Converger		 4" f/100
Diverger		 4" f/115
Converger		 4" f/115
Diverger		 4"
Flat 
Numerical Aperture 0.0067 -0.0067 0.0059 -0.0059 0.005 -0.005 0.0043 -0.0043 -
F-Number 75 75 85- 85 100 100 115 115 -
Angular Aperture 0.76° 0.76° 0.67° 0.67° 0.57° 0.57° 0.5° 0.5° -
Radius of Reference Surface RM  [mm] -7500 7500 -8500- 8500 -10000 10000 -11500 11500 infinite
Maximum outside Sample Diameter DM allowed when accommodating Radii up to RM  [mm] 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 101.6
Maximum convex (concave) Radius that can be tested when outside Sample Diameter is larger than DM  [mm] 7450 -7550 8450 -8550 9950 -10050 11450 .11550 -
Diameter x Length [mm] 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45 140 x 45
Weight [kg] 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Wavefront Deformation for single pass [Waves PV] <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Surface defects (according to ISO):  5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25 5/ 10x0.25

 

 
6" Objectives: 6" f/1.1 6" f/1.1 EX 6" f/2.2 6" f/5.0 6" Flat 
Numerical Aperture 0.45 0.45 0.228 0.09 -
F-Number 1.1 1.1 2.19 5.0 -
Angular Aperture 53.49° 55.6° 26.36° 10.0° -
Radius of Reference Surface RM  [mm] -109 -165.0 -284.90 -715.6 infinite
Maximum outside Sample Diameter DM allowed when accommodating Radii up to RM  [mm] 102 150 131 145 152.4
Maximum convex (concave) Radius that can be tested when outside Sample Diameter is larger than DM  [mm] 107 163 280 710 -
Diameter x Length [mm] 190 x 109 210 x 240 190 x 109 190 x 109 190 x 60
Weight [kg] 7.0 12.7 4.9 3.5 2.2
Wavefront Deformation for single Pass
[Waves PV]		 <2.5 <2.5 <2.0 <1.5 <1.0
Surface defects (according to ISO):  5/ 60x0.25 5/ 60x0.25 5/ 60x0.25 5/ 60x0.25 5/ 10x0.25

 

In stock and immediately available (November 2024):

4" f/0.55 EX 1/20 wave
4" f/0.75 1/50 wave
4" f/0.8 EX 1/30 wave
4" f/1.1 1/40 wave
4" f/1.5 1/20 wave and 1/30 wave
4" f/1.9 1/20 wave and 1/40 wave
4" f/3.3 1/30 wave and 1/40 wave
4" f/4.8 1/40 wave
4" f/7.2 1/20 wave
4" f/7.2 Diverger 1/20 wave
4" f/11 1/20 wave
4" f/15 Converger 1/20 wave
4" f/25 Converger 1/20 wave
4" f/50 Converger 1/20 wave
4" f/75 Converger 1/20 wave
4" transmission flat 1/20 wave and 1/40 wave
6" transmission flat 1/20 wave and 1/30 wave
MPF Optics

Super 6" f/1.1 EX  Transmission Sphere

6" input, internal beam,
expander to 8" diameter,
true 6" f/1.1 output 

Surface Accuracy:
1/10 or 1/20  wave PV

Numerical aperture: 0.45
Radius of reference element: -165mm
 

Diameter 210 mm
Length 240 mm
Weight 12.7 kg

6" Zygo bayonet

Please ask for prices
MPF Optics  4" --> 6" Beam expander, horizontal version

Input:  4"  Zygo bayonet

Diameter 180mm (without the bolts), Length 230mm

Weight 3.7 kg

Wavefront deformation in single pass: < 1.5 waves PV

Please ask for prices
MPF Optics  4" --> 6" Beam Expander, Vertical Version with 6" Zygo Bayonet

Input: 4" Zygo bayonet    Output: 6" Zygo bayonet

Diameter about 222mm, Length about 227mm

Weight about 4.0 kg

Wavefront deformation in single pass: < 1.5 waves PV

Please ask for prices
MPF Optics  4" --> 6" Beam Expander, Vertical Version with Tip/Tilt and 6" Zygo Bayonet

Input: 4" Zygo bayonet    Output: 6" Zygo bayonet

Length about 248mm, Size about 200mm x 200mm

Please ask for prices

CaliBall TM

CaliBall TM 

CaliBall is a 25.4mm diameter, high precision silicon nitride ball and kinematic mount used to calibrate phase-measuring interferometers by determining the errors of the transmission sphere reference-surface. The CaliBall is located with its center at the focus of the transmission sphere and aligned to better than one fringe. A measurement of the ball is taken, the ball picked up, arbitrarily rotated and replaced on its mount. The center of the ball will return to the original position due to the kinematic mount. Another measurement of the ball is then taken.  This process is repeated about a dozen times and the interferograms are averaged. The average represents the errors in the transmission sphere and interferometer because the ball is extremely round and the small imperfections of the ball average to zero. The calibration can be done in as little as 10 minutes and the result is difficult to dispute. Best used with low F/# transmission spheres.

Price: 1050.- EUR plus VAT

CaliBall2 TM 

This is the second version of the CaliBall, which is used if the optical axis is horizontal. It fits into a standard 4" Zygo bayonet mount.

Price:  1600.- EUR plus VAT 

 
New Transmission Flats from other Manufacturers  
CVI Technical Optics Ltd. 4" Transmission Flat

This TF is new !
Serial Number:  6060313-11
AE stock number: 62

Wood Box: yes
Foam in Box: yes
Price: 1800.- EUR plus VAT
 

 


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Optische Formelsammlung: Interferometrie      Optical formula collection: Interferometry

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