A 20 mm working distance objective for two-photon imaging
Posted in Hardware
We have designed a 20 mm working distance air immersion objective for multiphoton imaging. The target application is for surgical preparations that make it difficult to use conventional objectives with shorter working distances and/or a requirement for a water interface. This objective is all about getting the geometry to work out. If you’re frustrated with the working distance limitations of objectives on the market for your particular surgical prep, we hope this can be an interesting solution for your work.
We already have some early adopters and we’re going to have a first run made soon. If you want in, contact us by the end of the day this Friday (Nov 13, 2020). We can accommodate some more people. $15k is the price.
Specifications
| Design wavelength range | 920 nm ± 10 nm |
| Working distance | 20 mm |
| Numerical aperture | 0.5 |
| Magnification | 10 X (with 200-mm focal length tube lens) |
| Focal length | 20 mm |
| Field of view | 2.08 mm (diameter) |
| Scanning angles | ± 3 degrees |
| Entrance pupil | 20 mm (diameter) |
| Parfocal distance | ~90 mm |
| Mounting thread size | M32 x 0.75 |
| Immersion media | Air |
| Coverslip thickness | Correction collar (0 – 1 mm glass thickness) |
Did you go ahead and make a batch of these objectives? Are any now available? Who do we contact about more details or making an order?
Hi Trevor, Thanks for your interest. I’ll email you. -Spencer