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Galvo Scanner

Click to EnlargeThe front of the controller has a DB-25 connector for the scan head, as well as BNC connectors and an NI 68-pin connector for position control and readout.

Xy scanning mirror

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Click to EnlargeThe back of the controller has a USB port to control the resonant scanner of the scan head, as well as a fuse holder, power switch, and grounding pin connector.

Each scan mirror has a protected silver coating that provides high reflectance in the visible and NIR; see the Specs tab for details. Since the coating is metallic, its performance varies minimally over the ±7.5° mechanical scan range of the mirror.

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Employing the van Cittert–Zernike theorem of classical coherence theory, we derive a general expression for the efficiency with which quasi-monochromatic random light can be coupled to an optical fiber by means of a lens. For the important case of a source with Gaussian intensity distribution, we obtain and discuss the dependence of the coupling efficiency to single-mode fibers on the lens-to-fiber coupling geometry as well as on the ratio of lens size to speckle size. A specialization to the emerging fields of both incoherent and coherent fiber-based lidar applications shows that a maximum coupling efficiency of ∼42% can be obtained for a monostatic system.

Lasorb

by JC Christou · 2021 · Cited by 13 — Adaptive optics is an area of optical research and application that has grown significantly in the last fifteen years as the cost and complexity ...

MountingThe input face of the scan head has internal SM05 (0.535"-40) threads, internal SM1 (1.035"-40) threads, and four Ø6 mm bores spaced for our 30 mm cage system. The output face has internal SM1 threads and four 4-40 taps for our 30 mm cage system.

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The scan head is connected to the controller using the included DB25 cable. If using the BNC input connectors to drive the galvo mirrors, a drive voltage of ±10 V at an impedance of 10 kΩ will be required for each axis. The BNC output connectors have a voltage range of ±3.75 V and an impedance of 1 kΩ.

Galvo mirror

A National Instruments (NI) 68-pin connector is available to directly control and monitor the scanner via an NI card or breakout box (not included). The beam can also be steered by supplying DC, sine, sawtooth, or triangle wave drive signals through two BNC connectors. Two additional BNC connectors provide X and Y position feedback signals. This scanner is also compatible with Vidrio's ScanImage software.

The compound microscope has two systems of lenses for greater magnification, 1) the ocular, or eyepiece lens that ... The high power objective lenses are ...

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SCANLAB

The scan head has a mass of 0.56 kg, so it may be useful to support it directly using a Ø1/2" post or Ø1" post. Four 1/4"-20 tapped holes (M6) are located on the bottom.

Fresnel lenses are unlike typical spherical or aspherical optical lenses. The grooves of Fresnel Lenses act as individual refracting surfaces, making these ...

ScannerMAXSaturn 5

Apr 22, 2020 — Compared to professional grade lenses, the Canon EF 50mm f/1.8 STM lens' images will appear soft when shot at f/1.8. That said, in the middle of ...

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Allows Nikon F-mount lenses to be used with your Beastgrip DOF Adapter Lightweight, rugged design ensures your lenses are mounted safely Also compatible ...

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You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

Our LSKGG4(/M) Galvo-Galvo Scanner utilizes two galvo scan mirrors that deflect an incident laser beam in X and Y. Identical to the galvo-galvo scanner used in our Bergamo® III multiphoton microscopes and complete Cerna®-based confocal systems, each mirror has a mechanical scan range of ±7.5°, corresponding to an optical scan range of ±15°. This range is large enough to explore the entire diffraction-limited FN20 field of view of Thorlabs' SL50 scan lenses for laser scanning microscopy.

Institut für Nachrichtentechnik und Hochfrequenztechnik, Technische Universität Wien, Gusshausstrasse 25/389, A-1040 Vienna, Austria

ScannerMAXCompact 506

Discover cutting-edge, ultrafast lasers for scientific research with superior performance and reliability for faster data precision and publishing.

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution. Contact your librarian or system administrator or Login to access Optica Member Subscription

Employing the van Cittert–Zernike theorem of classical coherence theory, we derive a general expression for the efficiency with which quasi-monochromatic random light can be coupled to an optical fiber by means of a lens. For the important case of a source with Gaussian intensity distribution, we obtain and discuss the dependence of the coupling efficiency to single-mode fibers on the lens-to-fiber coupling geometry as well as on the ratio of lens size to speckle size. A specialization to the emerging fields of both incoherent and coherent fiber-based lidar applications shows that a maximum coupling efficiency of ∼42% can be obtained for a monostatic system.

Note because the galvo-galvo scanner can be steered using multiple methods of input signals, neither BNC cables nor an NI 68-pin cable are included.

Please note that the scan lens needs to be positioned such that its entrance pupil is at the midpoint between the galvo mirrors; when being used at the input, the distance is 27.255 mm, while at the output, the distance is 29.045 mm. For the CLS-SL Scan Lens, an LCP02(/M) Cage System Size Adapter can be used to convert the 30 mm cage system to a 60 mm cage system to mount and position this scan lens at the correct distance using a LCP8S Cage Plate. An SM1A70 adapter with external SM1 and internal SM30 mounting threads will position our SL50-CLS2, SL50-2P2, or SL50-3P Scan Lens at the correct distance from the scanner output port.