Flexible Optical B.V. (OKO Technologies)

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

... development of high resolution optical systems based on wave-front sensing and aberration correction. The company produces a wide range of custom deformable mirrors and wave-front sensors. From its foundation ...

2. Special offer
(News/Latest news)

...  negligible scattering and negligible actuator print-through.  OKO mirrors can be HR coated  for high-power laser applications,  low-dispersion broadband coatings can be used  for ultrafast applications ...

3. Deformable mirror optimized for low-order Zernike terms
(News/Latest news)

Flexible Optical B.V. presents new 19-channel 30-mm deformable mirror  optimized for high-quality correction of low-order Zernike terms. Our new 19-channel piezo DM has been specially designed for ...

4. 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 ...

5. A4MEMS high-voltage amplifier modules
(Products/Electronics)

A4MEMS is a low-cost high-voltage DC amplifier. A4MEMS measures 110 x 60 x 30mm. It provides 0 ... 300 V output in 4 independent channels. Voltage ranges up to 0 ... 400 V are available on a special order. ...

6. Employment
(Company/General)

... at walking distance from Delft centre with its beautiful canals. Delft centre has the highest in Holland concentration of cafes and restaurants.   ...

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

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

8. Electronics
(Products/Electronics)

Our standard adaptive optical systems are based on Windows PCs, high-voltage amplifiers and digital-to-analog converters (DAC) serving as interface between a PC and an amplifier. We have developed a number ...

9. Hartmann masks
(Products/Wavefront sensors)

... holes are positioned with very high precision and aberration of the mask is negligible, these masks can be used for absolute wavefront sensing, without calibration on a reference light beam.  ...

10. Microlens arrays
(Products/Wavefront sensors)

Flexible Optical produces high-quality replicated microlens arrays specially for the use with FrontSurfer wavefront sensors. As a standard option, we offer a hexagonal array of 127 microlenses with a focal ...

11. How large can be the amplitude of the corrected aberrations?
(FAQs/General)

... range is higher for low spatial frequencies. The maximum profile difference between the adjacent actuators reaches 800 nm for MMDM and can be as large as 3 ?m for a PDM.  ...

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

... 37-ch MMDM provides high-quality correction of all 3-rd order aberrations and is reasonably good in correcting the 5-th order aberrations. 79-ch MMDM will correct aberrations up to 5th order. PDM with ...

13. Linear deformable mirrors
(Products/Wavefront correctors)

... negligible power consumption, high optical quality which is usually better than 2 fringes over the whole aperture, fast response and large correction range. These mirrors can be coated with high-reflective ...

14. What is the power handling ability of OKO DM?
(FAQs/General)

... loads of up to 500 W and even 1 kW in some cases. Piezoelectric mirrors can be coated with high-power HR coatings, making them suitable for optical load of up to 1 kW and higher - is some special cases. ...

15. How MMDM works?
(FAQs/MMDMs)

MMDM consists of a thin (500 to 700nm thick) membrane made of silicon nitride. The membrane is coated by a thin layer of aluminum or gold to produce a highly reflective surface. The membrane is fixed to ...

16. Is it possible to use MMDM for tilt correction (scanner mode)?
(FAQs/MMDMs)

... mirror diameter. Contact OKO for details. Using the device in scanner mode will reduce its correction performance for higher order aberrations. ...

17. Where to buy high-voltage power supplies for OKO driver boards?
(FAQs/General)

... fax (0)11-416919. EMCO high-voltage DC to DC convertors F03 (F02 for lower voltage) can be used for portable applications. One module is needed for a 19-ch system, two modules will power a 37-ch system. ...

18. Micromachined Membrane Deformable Mirrors (MMDM)
(Products/Wavefront correctors)

Micromachined membrane deformable mirrors with apertures in the range of 10 to 50 mm, represent a high-quality affordable solution for the correction of dynamic wavefront deformations in laser systems ...

19. Publications based on OKO products
(Products/Technology)

Correction of low order aberrations using continuous deformable mirrors The authors show that to achieve a high quality correction of low-order aberrations using membrane, bimorph and continuous facesheet ...

20. A4Mems -- new high voltage amplifier
(News/2006)

OKO introduces A4MEMS: 4-channel high-voltage amplifier for quick MEMS prototyping. ...