ASTRO ELECTRONIC
Dipl.-Ing. Michael Koch
Raabestr. 43     D-37412 Herzberg     Germany
Tel: +49 (0)5521 854265    Fax:  +49 (0)5521 854266
www.astro-electronic.de        e-mail
Gebrauchte Referenz-Objektive für Interferometer
  Used reference optics for interferometers
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Used Transmission Spheres
Surface Error
Tested either with CaliBall (average of 10 measurements) or against a 1/40 wave f/3.3 transmission sphere, or against a 1/40 wave F/0.70 transmission sphere.
Description            Pictures
Zygo®  6" f/0.77

Stock Number: #115

Wood Box: no
Foam in Box: no

This transmission sphere has a few very small damages on the reference surface (black dots in the phase map). Each of them is smaller than 1mm.

The phase map is for 100% aperture, measured with CaliBall
(20 measurements averaged)

Price:
10500.- EUR plus VAT

already sold

ZygoŽ 4" f/3.3
 

Stock Number: #116

Wood case: yes
Foam in case: no

Phase map is for 95% aperture (tested against the central part of a 1/40 wave 4" f/0.7 transmission sphere)

Price:
4500.- EUR plus VAT

already sold

ZygoŽ 4" f/3.3 Series 4, has an original 1/40 wave sticker 
 

Stock Number: #111

Aluminium case: yes
Foam in case: yes

Phase map is for 95% aperture (tested against the central part of a 1/40 wave 4" f/0.7 transmission sphere)

Price:
10500.- EUR plus VAT

Zygo®  (produced by Jenoptik) 
2" f/1.25  for 655nm

Stock Number: #69

Bayonet diameter is 70mm

Wood Box: yes
Foam in Box: yes

Phase map is for 95% aperture

Price:
3200.- EUR plus VAT

Zygo®  (produced by Jenoptik) 
2" f/3.3  for 655nm

Stock Number: #79

Bayonet diameter is 70mm

Wood Box: yes
Foam in Box: yes

Phase map is for 95% aperture

Price:
2400.- EUR plus VAT

Zygo® 
33mm f/0.81

Stock Number: #34

Wood Box: no
Foam in Box: no

Phase map is for 95% aperture

Price:
800.- EUR plus VAT

Zygo® 
33mm f/1

Stock Number: #66

Wood Box: yes
Foam in Box: no

Phase map is for 100% aperture

This lens shows spurious fringes near the center, possibly because the AR coating is missing on some surface, or because it's designed for another wavelength.

Price:
800.- EUR plus VAT

Zygo® 
33mm f/2

Stock Number: #33

Wood Box: no
Foam in Box: no

Phase map is for 95% aperture

Price:
1400.- EUR plus VAT

Zygo® 
33mm f/4

Stock Number: #32

Wood Box: no
Foam in Box: no

Phase map is for 95% aperture

Price:
700.- EUR plus VAT

Zygo® 
33mm f/16

Stock Number: #31

Wood Box: no
Foam in Box: no

Phase map is for 95% aperture

Price:
1200.- EUR plus VAT


Zygo® COSTAR TEST LENS B.F.L. 1529mm

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)


Used Transmission Flats
Surface Error (Average of 10 measurements)
-- 4" or smaller optics were tested against a 4" 1/70 wave PVr flat
--Larger optics were tested against the central part of a 18" Zerodur TF from Zygo,
-- Aluminized optics were tested against a 6" 1/43 wave PV Dynaflect flat from Zygo
Description        Pictures
Zygo® 6" Transmission Flat

AE stock number: 119

The phase map is for 95% aperture

The flat has a small damage in the glass, about 1-2mm wide. In the phase map it's the largest black dot at 11 o'clock. MetroPro did automatically mask it out. The other black dots are only dust.

Wood Box: yes
Foam in Box: no

Price:
3800.- EUR plus VAT

4"  Transmission Flat from Phase Shift Technology

AE stock number: 121

Wood Box: yes
Foam in Box: yes

Price:
1800.- EUR plus VAT

ZygoŽ 4" Dynaflect Transmission Flat

Serial Number: 058
AE stock number: 123

This TF has an old original test report from Zygo from 1990, PV 0.035 waves, RMS 0.008 waves.

Wood Box: yes
Foam in Box: no

Price:
2400.- EUR plus VAT

already sold

Zygo® 4"  Reference Flat with 90% Aluminium Coating

AE stock number: 124

This flat has an old original test report from Zygo from 1989, PV 0.050 waves, RMS 0.011 waves.

Wood Box: yes
Foam in Box: no

Price:
1500.- EUR plus VAT

Zygo® 4"  Transmission Flat

AE stock number: 37

Wood Box: no
Foam in Box: no

Price:
1500.- EUR plus VAT

VEECO 4" Transmission Flat

This flat was not designed for 633nm. I don't know for which wavelength it is. It can be used at 633nm, if you use the darker of the two alignment spots. The brighter spot is from the back side!

Phase map is for 95% aperture.

AE stock number: 96

Wood Box: no
Foam in Box: no

Price:
2600.- EUR plus VAT

Zygo® 4" Reference Flat

AE stock number: 92

It can't be used as a transmission flat because the back  side has too much curvature.

Wood Box: yes
Foam in Box: no

Price:
1800.- EUR plus VAT

Zygo® 4" Reference Flat

AE stock number: 46

It can't be used as a transmission flat because the back  side has too much curvature.

Wood Box: yes
Foam in Box: yes

Price:
2200.- EUR plus VAT

Zygo® 4"  Transmission Flat

AE stock number: 64

Wood Box: no
Foam in Box: no

Price:
2600.- EUR plus VAT

Zygo® 4"  Transmission Flat

AE stock number: 113

This flat has an antireflection coating for 830nm on the back side. You can use it at 633nm, but then you must select the darker of the two alignment spots. At 633nm the spot from the back side is the brighter one.   

Wood Box: no
Foam in Box: no

Price:
900.- EUR plus VAT

Phase Shift Technology
4" Transmission Flat

This flat has a coating for testing of highly reflective samples. In very good condition.

AE stock number: 95

Wood Box: no
Foam in Box: no

Price:
2400.- EUR plus VAT

Zygo® 4" Reference Flat

This RF has a 90% Aluminium coating and is mounted backwards in the Zygo bayonet

AE stock number: 68

Wood Box: yes
Foam in Box: yes

Price:
1800.- EUR plus VAT


Zygo® 4" Dynaflect Transmission Flat

Serial Number:  96054
AE stock number: 61
 

This TF has a damage in the coating, about 8mm x 5mm, which will produce a very bad PV reading (see upper phase map)
In the lower phase map I masked out this damage.

This TF is perfectly usable if your test piece is smaller than 70mm diameter, or if you only want to inspect the straightness of the fringes visually.

Wood Box: no
Foam in Box: no

Price:
1400.- EUR plus VAT

Wyko 100mm Transmission Flat
 

Serial Number:  unknown
AE stock number: 8

Wood Box: no
Foam in Box: no

Price:
1300.- EUR plus VAT

Zygo® 
25mm Transmission Flat for PTI250

Stock Number: #76

Outer Aluminium housing is missing, but that's onyl a cosmetic problem

Wood Box: yes
Foam in Box: yes

Phase map is for 95% aperture

Price:
2000.- EUR plus VAT

Zygo® 
25mm Transmission Flat for PTI250

Stock Number: #77

Wood Box: yes
Foam in Box: no

Phase map is for 95% aperture

Price:
2000.- EUR plus VAT

Zygo® 
25mm/6mm Aperture Converter for PTI250

Stock Number: #78

With internal 6mm transmission flat

Wood Box: no
Foam in Box: no

Phase map is for 95% aperture

Price:
1500.- EUR plus VAT



Zygo® 
25mm/6mm Aperture Converter for PTI250

Stock Number: #107

With internal 6mm transmission flat

Wood Box: no
Foam in Box: no

Left side: Phase map is for 70% aperture

Below: Phase map is for 95% aperture  

Price:
1800.- EUR plus VAT

Zygo® 33mm Transmission Flat

AE stock number: 51

Wood Box: no
Foam in Box: no

Price:
700.- EUR plus VAT

Zygo® 33mm Transmission Flat

AE stock number: 25

Wood Box: yes
Foam in Box: no

Price:
1000.- EUR plus VAT

Zygo® 33mm Transmission Flat

AE stock number: 26

Wood Box: yes
Foam in Box: no

Price:
850.- EUR plus VAT

Zygo® 33mm Transmission Flat

AE stock number: 27

Wood Box: yes
Foam in Box: no

Coating on the back side is optimized for 830nm, but it's no problem to use it at 633nm

Price:
1050.- EUR plus VAT


Zygo® 33mm Transmission Flat

AE stock number: 29

Wood Box: yes
Foam in Box: no

Upper phase map shows two small damages (small red dots) which raise the PV to 0.064 waves. 

In the lower phase map these peaks are masked out, so that PV in only 0.029 waves.
 

Price:
400.- EUR plus VAT

Zygo® 33mm Transmission Flat

AE stock number: 10

Wood Box: no
Foam in Box: no

Price:
850.- EUR plus VAT

Zygo® 33mm Transmission Flat, Aluminium coating

AE stock number: 11

Wood Box: yes
Foam in Box: no

Price:
1000.- EUR plus VAT

Zygo® 33mm Transmission Flat, Aluminium coating

AE stock number: 12

Wood Box: yes
Foam in Box: yes

Price:
1100.- EUR plus VAT

Zygo® PRISM QUICK-CHECK/FONT>

-- Zerodur Mirrors
-- usable mirror dimensions: 85mm x 55mm
-- Mirror distance: 101mm
-- 3-axis-stage (tip, tilt, rotation)
-- has some small damages on the reference mirrors
-- includes wood box with foam

Price:
7000.- EUR plus VAT



Used Aperture Converters
Zygo Aperture Converter 4" / 6"

This converter is in bad condition, but it is fully usable. The antireflection coating of the 6" front lens is damaged, as you can see in the pictures. The inner surface of the 6" lens and both surfaces of the 4" lens are in good condition. The anodizing of the housing has degraded and is no longer black. And now the good news: It's perfectly usable, as you can see in the MetroPro test report. You can clearly see the damaged coating in the intensity map in the top right corner, but the damages are invisible in the phase map. I did test two very good transmission flats against each other, almost 1/40 wave PV. 

AE stock number: 120

Wood Box: no
Foam in Box: no

The 6" transmission flat is not included!

Price:
3000.- EUR plus VAT


Zygo Aperture Converter 4" / 6" @ 488nm

In very good condition !

It's designed for 488nm, but you can also use it at 633nm without any problems. I have checked the collimation at  633nm with a collimation tester and it's perfect.

AE stock number: 108

Wood Box: yes
Foam in Box: no

The 6" transmission flat is not included!

Price:
5600.- EUR plus VAT

already sold

Zygo Aperture Converter 4" / 33mm

The housing has a few scratches, but the optics are in very good condition !

AE stock number: 50

Wood Box: no
Foam in Box: no

Price:
3800.- EUR plus VAT

already sold

Zygo Aperture Converter 4" / 33mm @ 830nm

Designed for 830nm

Very good condition.

AE stock number: 109

Wood Box: yes
Foam in Box: no

Price:
3000.- EUR plus VAT



Used Reference Spheres
Measurement procedure:
These reference spheres were measured against a 1/40 wave F/0.7 transmission sphere, which was calibrated with CaliBall (immediately before the measurement). The sytem error was subtracted and 10 measurements were averaged. 
ZygoŽ Reference Sphere 37mm f/0.68 4%

-- used, in very good condition

-- The left phase map is for 95% aperture

-- including wood box

-- Price 650.- EUR plus VAT

-- AE stock number: 18

Same item as above, but tested for 50% aperture  
zygo® Reference Sphere 37mm f/0.68 4%

-- used, in very good condition

-- Two original test protocols from Zygo are included: PV 0.046 for center and PV 0.042 for edge

-- including wood box with foam

-- Price 1800.- EUR plus VAT

-- AE stock number: 19

 already sold

zygo® Reference Sphere 37mm f/0.68 4%

-- used, the back side is damaged

-- no test certificate included

-- including wood box, but without foam

-- Price 1300.- EUR plus VAT

-- AE stock number: 20

zygo® Reference Sphere 37mm f/0.68 4%

-- used, in good condition

-- no test certificate included

-- including wood box with foam

-- Price 1800.- EUR plus VAT

-- AE stock number: 22



 
Pellicle Filter 46.6mm Diameter

-- Protective lids on both sides 
-- Post has 12mm diameter
-- including wood box

Price: 700 EUR + VAT


zygo® Retroreflector 7003A

-- very useful for critical alignment of transmission flats and apertue converters, see Zygo's application notes AN-0024 and AN-0029
-- the retroreflector can also be mounted from the other side
-- fits in Zygo's 4" XYZ stage, see next picture (the stage is not included)

-- Price 700.- EUR plus VAT


Used Objectives for Interference Microscopes:

Wyko GX 2.5 Mirau Objective 950.- EUR plus VAT
Wyko GX 10 Mirau Objective 950.- EUR plus VAT
Wyko GX 40 Mirau Objective 950.- EUR plus VAT
Wyko GX 40 Mirau Objective 950.- EUR plus VAT
Wyko IX 50 Objective   950.- EUR plus VAT
Wyko LX 40 Michelson Objective 950.- EUR plus VAT 
Wyko PX 1.5 Michelson Objective 950.- EUR plus VAT

Wyko PX 2.5 Michelson Objective 950.- EUR plus VAT
Wyko PX 5 Michelson Objective 950.- EUR plus VAT
Wyko PX 10 Mirau Objective 950.- EUR plus VAT
 
Wyko PX 20 Mirau Objective 950.- EUR plus VAT
Wyko PX 40 Mirau Objective 950.- EUR plus VAT
Wyko RX 2.5 Mirau Objective 950.- EUR plus VAT
Wyko RX 20 Mirau Objective 950.- EUR plus VAT 

Nikon/Zygo MPlan 2.5 TI / 0.075  Michelson Objective 950.- EUR plus VAT
Nikon/Zygo MPlan 5 TI / 0.1  Michelson Objective 950.- EUR plus VAT
Zygo 40x Mirau Objective (from NV100) 950.- EUR plus VAT
 


Used Objectives for Microscopes:/FONT>

Mitutoyo M Plan Apo 5  0.14  infinite / 0  f=200mm    500.- EUR plus VAT
Mitutoyo M Plan Apo 10  0.28  infinite / 0  f=200mm    500.- EUR plus VAT


Optische Formelsammlung: Allgemein      Optical formula collection: General

Optische Formelsammlung: Interferometrie      Optical formula collection: Interferometry

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