Flexible Optical B.V. (OKO Technologies)

1. Welcome to Flexible Optical B.V.!
(Company/What is OKO Tech?)

... laser, astronomical, medical and other applications, based on MEMS and piezoelectric deformable mirrors. Flexible Optical B.V. is a small Dutch business operating in the field of research and application-oriented ...

2. 15 mm 37-ch "OKO Mirror"
(Products/MMDM)

... laser beam control, real time atmospheric correction, ophthalmology, intracavity laser control, communications, holographic memory, optical fiber switching, etc. Properties of these mirrors are described ...

3. What coating can be used with your deformable mirrors?
(FAQs/General)

The standard coating for MMDM is aluminum, for PDM — aluminum or protected silver. Gold, protected silver and dielectric coatings (with a small number of coating layers) for MMDM and ...

4. What is the stroke of a deformable mirror?
(FAQs/General)

... (or 8 μm at 400 V); for MMDM, it depends on the mirror size (about 9 μm for 15-mm mirrors and 18 µm for 50-mm mirrors). For typical values of maximum and inter-actuator stroke of our ...

5. How do the response functions of the deformable mirrors look like?
(FAQs/General)

The shape of the response functions depends on the mirror type (MMDM or PDM) and on the actuator structure. A very good approximation to the response functions for all of our mirrors can be calculated ...

6. Product Guide updated
(News/Latest news)

New, third edition of our Product Guide is out! It contains descriptions of our new mirrors and wavefront sensor configuration, technical drawings of the mirror cases, updated section on the mirror performance ...

7. MrFit
(Products/Software)

MrFit is a program for simulation of membrane and continuous facesheet deformable mirrors ("Mr" means mirror and "Fit" means to fit a specified wavefront). It calculates the voltages to be applied to the ...

8. High-voltage amplifier boards
(Products/Electronics)

We produce three different types of  20-channel driver boards  for deformable mirrors. These boards have gain of 59, 35, 81, providing output voltage swing [0...400V] for input range [0...10V] in a frequency ...

9. Contact us
(Company/What is OKO Tech?)

... a catalogue Deformable mirrors Wavefront sensors Closed-loop adaptive optics Optical software Microoptics Jobs with OKO Message*: Please type in the following charachters*:    ...

10. MrFit is out
(News/Latest news)

A free version of our Windows software for modeling of the response of membrane and piezoelectric deformable mirrors is available for download (Warning, the file size is ~150 MB!). MrFit is a program ...

11. Correction of low-order aberrations
(News/Latest news)

Our article "Correction of low-order aberrations using continuous deformable mirrors" is published in Optics Express. ...

12. High-voltage amplifier units
(Products/Electronics)

OKO DC HV amplifiers with 20 and 40 channels are specially designed to drive MEMS  devices and  deformable mirrors. Each amplifier has 40 identical amplifier channels with a gain of 55 (80). ...

13. Electronics
(Products/Electronics)

... of interfaces and amplifiers that allow to control high-voltage deformable mirrors with up to 1 kHz frequency, voltage up to 400V with a precision of 8 (PCI) or 12 (USB) bit. OKO PCI boards allow to ...

14. Introduction to the FrontSurfer
(Products/Wavefront sensors)

... testing of transmissive and reflective optics: lenses, mirrors, lens assemblies, collimators, etc. The measurement precision can reach λ/100 rms. Real-time display of low-order aberrations (tip/tilt, ...

15. Which modifications of FrontSurfer software are available?
(FAQs/Wavefront sensors)

FrontSurfer is available in two modifications - with and without support for deformable mirrors and adaptive optics feedback.  ...

16. What is FrontSurfer?
(FAQs/Wavefront sensors)

FrontSurfer is a wavefront analysis and control system based on Shack- Hartmann wavefront sensors and deformable mirrors from OKO Technologies.  ...

17. How good is the initial figure of OKO deformable mirrors?
(FAQs/General)

The surface quality of all OKO mirrors is similar to any other solid reflective optics produced by leading manufacturers. It is good enough to work with very low scattering in the whole visible spectrum. ...

18. How linear is the PDM response?
(FAQs/PDMs)

OKO piezoelectric mirrors have linear response and feature 7 to 15% hysteresis and up to 2% creep.  ...

19. How good the mirrors will correct our aberrations?
(FAQs/General)

Information about the spatial and temporal spectra of the aberrated wavefronts is required for a good answer to this question. Membrane mirrors in general are good in correcting smooth continuous aberrations. ...

20. Linear deformable mirrors
(Products/Wavefront correctors)

  OKO Tech produces membrane and piezoelectric DM for ultrafast pulse control. These mirrors are usually used in a stretcher for selective control of the delays of chosen spectral components. Linear ...