Description
Ealing 25-9218 f/2 Smartt Point Diffraction Interferometer w/ Case Manual
Smartt point diffraction interferometer for wavefront testing and optical surface inspection. Uses laser or white light sources to generate high-contrast interference fringes for measurement applications.
Specifications & What's Included
- Model: 25-9218, f/2 aperture ratio
- Smartt point diffraction interferometer design
- Compatible with laser or white light sources
- Includes Beck X6 eyepiece, lens adapter ring, micrometer stage adjusters (L.S. Starrett Co. Ltd No. 263M)
- Wooden carrying case and instruction manual
Applications
Point diffraction interferometers are used for wavefront testing and quality control of optical components including lenses, mirrors, and telescope objectives. This instrument type has been standard in optical metrology and research laboratories for characterizing optical surfaces and detecting aberrations. The Smartt design provides a compact benchtop configuration suitable for laboratory use with direct eyepiece observation or camera coupling.
Ealing 25-9218 f/2 Smartt Point Diffraction Interferometer in used, good condition. The optical instrument is complete and fully assembled, with both micrometer translation adjusters present and the optical element securely mounted. An ATK Space Systems asset tag is affixed to the base. The unit has not undergone optical testing at our facility. This interferometer is accompanied by its original wooden carrying case with green felt-lined interior and all original component cutouts preserved. Included accessories are the Beck X6 eyepiece, a precision-machined aluminum lens adapter ring, and the original Ealing Smartt Point Diffraction Interferometer Instruction Manual. The case exterior shows light surface wear consistent with age and use. Please refer to the complete photograph set for additional condition details.
Warranty Information
Additional Information
Brand: |
Ealing |
Model: |
25-9218 |
MPN: |
25-9218 |
Type: |
Point Diffraction Interferometer |
SKU: |
50140 |
Aperture Ratio: |
f/2 |
Interferometer Design: |
Smartt Point Diffraction Interferometer (PDI) |
Light Source Compatibility: |
Laser or white light source |
Auxiliary Optics Required: |
No |
Fringe Type: |
High contrast interference fringes |
Application / Use Case: |
Wavefront testing, lens, mirror, telescope objective |
Included Accessories: |
Wooden carrying case, instruction manual, Beck X6 eyepiece, lens adapter ring, micrometer stage adjusters |
Micrometer Brand: |
L.S. Starrett Co. Ltd, Made in Great Britain, No. 263M |
Form Factor: |
Benchtop / Portable |
Condition: |
Used – Untested |
Country/Region of Manufacture: |
United Kingdom |
Seller Notes: |
Includes original wooden case and Ealing Smartt Interferometer Instruction Manual |
Condition Notes: |
Ealing 25-9218 f/2 Smartt Point Diffraction Interferometer, used good condition. Complete with both micrometers, optical element, Beck X6 eyepiece, aluminum adapter ring, manual & original wooden case. Not optically tested. Light case wear. |
