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. 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 ...

3. 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. ...

4. PCI DAC boards
(Products/Electronics)

OKO digital PCI boards provide 8-bit voltage control for 24 output channels. The output voltage range can be trimmed continuously in the range 2.5 ... 10V for all channels. Setting time per channel is ...

5. USB control unit
(Products/Electronics)

Digital-to-analog converter unit "DAC-40-USB" provides 12-bit voltage control for 40 output channels. The output voltage range can be trimmed continuously in the range 2.5 ... 5 V for all channels. Several ...

6. Wavefront Sensors
(Products/Wavefront sensors)

...  Wide range of microlens arrays for Hartmann-Shack sensors. Each array can be supplied standalone, or mounted in a C-mount compatible head. FrontSurfer - compatible HR CCD and CMOS cameras with PC ...

7. Software
(Products/Software)

In line with The FrontSurfer and The LightPipes  packages for WF sensing and scalar wave optics, we produce a wide range of custom software.  ...

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

... Features compact 40x200x280mm size, weight of 1,2 kg, 20W energy consumption and works in any country with AC power supply in the range from 85 to 250 V. Full signal response is linear from DC to ~700 ...

9. Microlens arrays
(Products/Wavefront sensors)

... distance of 18 mm and a pitch of 300 µm, mounted in a C-mount. Besides, Flexible Optical offers a range of microlens arrays fabricated in glass and fused silica with small numerical aperture and 99% optical ...

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

... and low-order wavefront aberrations in polar coordinates and bar graph format. Works with a wide range of cameras, Hartmann masks and microlens arrays. Windows and Linux versions. Version ...

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. 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 ...

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

Standard 15mm Al-coated MMDM can handle up to 3 W optical load in the visible range. On a special order MMDM can be coated with a special HR metal-dielectric coatings, making them suitable for optical ...

14. How linear is the MMDM response?
(FAQs/MMDMs)

... following expression can be used to convert the control signal CS (in the range -1...1) into the control byte CB applied directly to the digital board controlling the mirror actuator: CB=(int)sqrt(0.5*(CS.))*255.; ...

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

The device can be specially calibrated to correct for tilts, preserving the diffraction-limited quality of the reflected beam in the range of about 25*lambda/D where lambda is the wavelength and D is the ...

16. 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 ...

17. Piezoelectric DM
(Products/Wavefront correctors)

... in the range 1 to 3 μm. The mirror is controlled by OKO HV amplifer(s) and interfaced to a PC using 8-bit PCI or 12-bit USB controller(s). The full-amplitude mechanical response of the mirror is faster ...

18. WF correctors
(Products/Wavefront correctors)

... 99.0% HR coatings for 1060nm, 98% broadband metal/dielectric coatings for 550-1000nm, centered at 800nm, protected aluminum coatings optimized for 266 to 350nm range and other types of coatings on request. ...

19. AO systems with PDM
(Products/Complete AO systems)

AO systems with PDM are based on our technology of piezoelectric deformable mirrors (PDM). These mirrors can compensate large optical aberrations in a frequency range up to 1 kHz. Currently we fabricate ...

20. AO systems with MMDM
(Products/Complete AO systems)

AO systems with MMDM are based on our technology of Micromacined Membrane Deformable Mirrors. These mirrors are inexpensive and fast. They feature zero hysteresis and can work in a frequency range of up ...