-- Zoom 1x - 6x
-- Remote control for Zoom, Focus, fast switching between Align and View mode
-- Aperture 4" (102mm)
-- The original Vidicon camera has been replaced by a modern CCD camera, it's a SONY XC-ST51CE, vertical 50 Hz, horizontal 15625 Hz, alternatively a 60Hz camera is possible too
-- line voltage: 120V or 230V, please specify
-- For interferogram analysis I recommend  IntelliWave Software from Engineering Synthesis Design, Inc. (not included)
-- The 4" transmission flat, the 4" return flat and the video monitor shown in the picture are not included.

-- Used, in working condition, well collimated, including 4 weeks warranty

-- Delivery time about 8 weeks 

Price:
9200.- EUR plus VAT
 

Please note: We have many interferometers in stock, and we refurbish them one after the other. This takes a lot of time ...
If you are interested in a refurbished interferometer, please let us know and we put you on the wait list.

-- Zoom 1x - 6x
-- Remote control for Zoom, Focus, fast switching between Align and View mode
-- Aperture 4" (102mm)
-- The original Vidicon camera has been replaced by a modern CCD camera, it's a SONY XC-ST51CE, vertical 50 Hz, horizontal 15625 Hz, alternatively a 60Hz camera is possible too
-- Including 4" Phase Shifter from Zygo®
-- Including high voltage amplifier from ASTRO ELECTRONIC, built into the MK-3 or MK-4
-- line voltage: 120V or 230V, please specify
-- For interferogram analysis I recommend  IntelliWave Software from Engineering Synthesis Design, Inc. (not included)
-- Transmission sphere is not included
-- Used, in working condition, well collimated, including 4 weeks warranty 
-- Delivery time about 8 weeks

Prices:
MK-3  12950.- EUR plus VAT
MK-4  13450.- EUR plus VAT

Please note: We have many interferometers in stock, and we refurbish them one after the other. This takes a lot of time ...
If you are interested in a refurbished interferometer, please let us know and we put you on the wait list.

This is a point diffraction interferometer. 
In very good condition. 
Includes XY stage with micrometer screws.
Comes with wood box.

Price: 1200.- EUR plus VAT

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

Standard Zygo Bayonet

Please ask for prices
 
 

New: A special version with antireflective coating for Ritchey-Common Test is available as well.

New:
f/1.1, f/1.9, f/4.8 Transmission spheres
f/35 convergers and divergers
6" Super f/1.1 Transmission Sphere, with 6" input, internal beam expander to 8" diameter, and true 6" f/1.1 output 

CaliBall is a 25.4mm diameter, high precision silicon nitride ball and kinematic mount used to calibrate phase-measuring interferometers by determining the errors in 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 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:  650.- EUR plus VAT 
 
 
 

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:  800.- EUR plus VAT 

The main part of a Point Diffraction Interferometer is the PDI plate, which is a fused silica substrate with a 0.2% transmission Chrome coating, and pinholes in many different sizes from 1µm to 100µm.

Click here for more informations

Serial Number:
D152 T34

Wood Box: yes
Foam in Box: no

Notes:
Has a very small damage on the reference surface, at 1 o'clock position

Price:
5000.- EUR plus VAT 

Serial Number:
91159

Wood Box: yes
Foam in Box: no

Notes: Includes original Zygo test report,
PV 0.041 wave,
RMS 0.007 wave

Price:
6500.- EUR plus VAT 

Serial Number:
D152 T37

Wood Box: yes
Foam in Box: no

Notes: 
Has interal dust between the lenses, and a small damage on the reference surface (black dot a 3 o'clock)

Price:
3000.- EUR plus VAT 

Serial Number:
D152 T55

Wood Box: no
Foam in Box: no

Notes: 
Has several small damages on the reference surface

Price:
2500.- EUR plus VAT

SOLD

Serial Number:
D152 T35

Wood Box: no
Foam in Box: no

Notes:
Has several small damages on the reference surface, and has internal dust between the lenses

Price:
3500.- EUR plus VAT 

Serial Number: none, it's a one-of-a-kind item

Wood Box: yes
Foam in Box: yes

Notes:
I think it's a transmission asphere which was specially designed for testing the COSTAR instrument, which corrected the spherical aberration in the Hubble Space Telescope.

Price:
12000.- EUR plus VAT

(the 5-axis mount shown in the picture is not included)

Serial Number:  unknown
AE stock number: 1

Wood Box: no
Foam in Box: no

Price:
1500.- EUR plus VAT

Serial Number:  unknown
AE stock number: 2

Wood Box: yes
Foam in Box: yes

Price:
1800.- EUR plus VAT

Serial Number:  unknown
AE stock number: 3

Wood Box: yes
Foam in Box: yes

Price:
2300.- EUR plus VAT

Serial Number:  95100 ?
AE stock number: 4

Wood Box: yes 
Foam in Box: no

Price:
2200.- EUR plus VAT

Serial Number:  unknown
AE stock number: 5

Wood Box: yes
Foam in Box: yes

Price:
1800.- EUR plus VAT

Serial Number:  unknown
AE stock number: 6

Wood Box: no
Foam in Box: no

Price:
2200.- EUR plus VAT

Serial Number:  95101
AE stock number: 7

Wood Box: yes
Foam in Box: yes

Notes:
Comes with original Zygo test protocol, 
profile along vertical diameter: PV 0.017   RMS 0.005
profile along horizontal diameter: PV 0.026   RMS 0.008

Price:
1800.- EUR plus VAT

Serial Number:  unknown
AE stock number: 8

Wood Box: no
Foam in Box: no

Price:
1300.- EUR plus VAT

Serial Number:  071069
AE stock number: 10

Aluminium Box: yes
Foam in Box: yes

Notes:
Comes with original Zygo test protocol, 
PV 0.044
RMS 0.006
Comes in like-new condition

Price:
1200.- EUR plus VAT

Serial Number:  unknown
AE stock number: 12

Wood Box: yes
Foam in Box: no

Notes:
Has a high reflective coating which transmits only a few % of light. There are many small damages in this coating.

Price:
1000.- EUR plus VAT

Serial Number:  (00138)
AE stock number: 13

Wood Box: no
Foam in Box: no
 

Price:
1000.- EUR plus VAT

Serial Number:  00029
AE stock number: 14

Wood Box: no
Foam in Box: no

Notes:
Has a 6mm diameter damage on the reference surface at 6 o'clock.
Bad PV value is only due to this small damage. 
The rest of the surface is very good, look at the RMS value !

Price:
2200.- EUR plus VAT

Serial Number:  99045
AE stock number: 15

Wood Box: no
Foam in Box: no

Price:
3600.- EUR plus VAT

Serial Number:  6TF0393-0184
AE stock number: 16

Wood Box: no
Foam in Box: no

Notes:
This is a special flat for infrared use. The back surface has an AR coating, most probably for 1064nm.
When you use it at 633nm, always keep in mind that the brighter spot is from the back surface !

Price:
3500.- EUR plus VAT

Serial Number:  (00136)
AE stock number: 9

Wood Box: no
Foam in Box: no

Price:
1200.- EUR plus VAT

Optics and coatings are in very good condition !

Wood Box: yes, but in bad condition
Foam in Box: no

Price:
3800.- EUR plus VAT

in very good condition. Resolution 0.2 arc seconds. 12 Volts lamp.
The telescope can be turned by 90 degrees.
Including original wood box.

Price:
2000.- EUR plus VAT

in very good condition. Resolution 0.2 arc seconds . 12 Volts lamp.
The eyepiece with measurement dial can be turned by 90 degrees.
Including original wood box in very good condition.

Price:
4500.- EUR plus VAT

in good condition. Resolution 10 arc seconds. 
There is some dust on the optics, but readability is not affected. 
Including lamp and instruction manual.
The eyepiece can be turned 360 degrees.
Including original wood box.

Price:
800.- EUR plus VAT

in very good condition, like new. 
Including test certificates, all angles were measured individually.
Maximum error is 4.9 seconds between adjacent faces.
Including original wood box.

Price each:
1000.- EUR plus VAT

weight 9.1 kg
used, in very good condition

Price:
2400.- EUR plus VAT

X/Y travel range about +-10mm
cast iron, weight 19.7 kg, very heavy !
used, in very good condition

Price:
2600.- EUR plus VAT

360° rotation is possible as well
weight 5.3 kg
used, in very good condition

Price:
2400.- EUR plus VAT

zygo® Reference Sphere 37mm f/0.68 4%,
0.038 wave PV, 0.006 wave RMS,
used, in perfect condition, 
original test certificate is included,
including wood box,
price 2000.- EUR plus VAT
 

zygo® Reference Sphere 37mm f/0.68 4%,
(not shown in the picture)
0.046 wave PV, 
used, in perfect condition, 
original Zygo interferogram is included,
including wood box, no foam, 
price 1800.- EUR plus VAT

This computer came together with a Zygo Maxim GP profiler. Including built-in frame grabber card, keyboard, mouse, HP keyboard adapter module and HP ID module. The computer does boot, but then it asks for a password, which I don't have.
Mains voltage 100-240V AC.
System info as shown in picture below.

price 100.- EUR plus VAT

price 50.- EUR plus VAT

The cover is not shown in the pictures, but included

Mains voltage 100-240V AC

price 200.- EUR plus VAT 

Including 4-Axis stage and Z axis motor,
Z axis limit switches, and all interconnecting cables, also including the power supply for the indexer (not shown in the pictures).
X and Y travel: +-76mm 
Roll And Pitch: a few degrees
Mains voltage 100-240V AC
Guaranteed in working condition.

price 1200.- EUR plus VAT

-- manufactured by Barry Controls
-- used, guaranteed in working condition, 2 weeks warranty
-- line voltage: 230V
-- total load: 1905 - 4770 kg
-- 6 active degrees of freedom
-- active bandwidth 0.3 to 250 Hz
-- including manual, PC diagnostics software, and all cables
 

Price: 4000.- EURO plus VAT

-- Output voltage range: -400V ... +400V
-- Input voltage range: -10V ... +10V (or -5V ... +5V)
-- Gain: -40 (or -80)
-- Input impedance: 50kOhm (or 25kOhm)
-- Output connector: HV-BNC or BNC, please specify when ordering
-- Input connector: BNC
-- line voltage: 115V or 230V, please specify when ordering
-- Fits perfectly to the Zygo® MK-3 or MK-4 phase shifter
-- Size: 164mm x 105mm (130mm at bottom) x 66mm

Price: 950.- EURO incl. VAT
         (798.32 EURO overseas)

The Wyko Siris is a beautiful  small Twyman-Green interferometer.
It has an internal reference mirror with a piezoelectric phase shifter.
There is a movable shutter in front of the reference element. It it's closed, the instrument can be used with an external Fizeau reference element.

There exist several different versions of the Siris, I've seen it with 840nm semiconductor lasers and with 633nm He-Ne lasers.
In the original configuration, the laser is in an extra housing on top of the interferometer. This modified Siris does now have an internal He-Ne laser, a new CCD camera, and an internal power supply. You only have to connect the mains power, a video monitor and the remote control.

The laser beam is directed by two small adjustable mirrors (with a small negative lens in the middle between them) to a spatial filter assembly.
 

WYKO SIRIS in original configuration (not modified): 2500.- EUR incl. VAT 

-- untested as-is

Price: 100.- EURO incl. VAT
(84.03 EURO overseas)

-- I have two of them
-- untested as-is 

Price: 100.- EURO incl. VAT
(84.03 EURO overseas)

in working condition, mains voltage is 115V AC, secondary voltage is 2 x 12V without load.

Price 20.- EURO incl. VAT
(16.81 EURO overseas)

2/3" CCD sensor
120V AC 60 Hz
C-Mount
In working condition

Price 100.- EURO incl. VAT
(84.03 EURO overseas)

It does power up, but is otherwise untested. What you see is what you get. No manual, no schematics, no warranty.

Price: 200.- EURO incl. VAT
(168.07 EURO overseas)

-- Wyko Cobra Interface
-- HP Human Interface, RS232, SPKR, HP-HIL KYBD, HP-IB
-- HP98543A, seems to be the video card with RGB outputs 

This is the electronics box from a SIRIS interferometer.
It does power up, but is otherwise untested. What you see is what you get. Some (but not all) cables included. No manual, no schematics, no warranty. I have two of them. 

Price: 100.- EURO incl. VAT
(84.03 EURO overseas)

This is the camera from a WYKO SIRIS Interferometer. I sell it untested as-is. The rest of the interferometer was in like-new condition.

The CCD chip is a RA-0100AAQ-011 from Reticon.
Sensitive area is about 6mm x 6mm.

With cable and connector. I don't have the rest of the electronics or any schematic diagrams.

Price: 100.- EURO incl. VAT
(84.03 EURO overseas)
 

This is the camera from a WYKO SIRIS Interferometer. I sell it untested as-is. The interferometer was unopened when I got it, with the factory seals not removed.

This camera has a giant CCD chip:
It's a RA-0226BAQ-011 from Reticon.
Sensitive area is about 10.2mm x 10.2mm.

With cable and connector (not visible in picture). This camera fits to the COBRA controller above, but I don't have the cable that connects the SIRIS with the COBRA. I don't have any schematic diagrams.

Price: 100.- EURO Europe incl. VAT
(84.03 EURO overseas)

This is the infrared diode laser from a WYKO SIRIS Interferometer. It is in working condition. The type plate says 840nm wavelength and 2.0 mW maximum power. I do not need the diode laser because I built a 633nm He-Ne laser into the SIRIS.
The key for the switch is missing, but it's absolutely no problem to replace the whole switch, or simply shorten the wires.
Two adjustable mirrors and one lens inside. One spatial filter with pinhole and microscope objective inside. Laser radiation exit is at the bottom of the unit.
I think the supply voltage is about 24-28 VDC.
A Wyko technican told me that the coherence length is several meters if the diode current is adjusted correctly at the multi-turn potentiometer.

Price: 300.- EURO incl. VAT
(252.10 EURO overseas)

This is the video camera from a WYKO LADITE Interferometer. I sell it untested as-is. 
Cable is included. I don't have the rest of the electronics or any schematic diagrams.

Price: 100.- EURO incl. VAT
(84.03 EURO overseas)

This is the electronics board from a WYKO LADITE Interferometer. I sell it untested as-is. 
I don't have the rest of the electronics or any schematic diagrams.

Price: 30.- EURO incl. VAT
(25.21 EURO overseas)