Overview of Galvo Scanning Mirrors Module with Pinhole
This two-axis Galvo Scanning Mirrors unit includes a computer-controlled, variable-aperture pinhole. The unit includes a rotating filter wheel, descanning lens, two computer-controlled shutters and one variable-aperture pinhole. Up to four dichroic filters can be installed to separate the excitation radiation from the fluorescence; filter selection is through the software. The mirrors, 5 x 5 mm, are coated to cover the range 250 - 450 nm (UV-enhanced Al coating) or the range 375 - 800 nm (broadband dielectric coating). The unit, complete with driving electronics and power supply, is controlled through the 3-axis card by the VistaVision software.
Applications
Key component of a custom-built 1-photon Laser Scanning Microscope
Product Specifications for Galvo Scanning Mirrors Module with Pinhole
Module
Power
- 110/240 V, 50/60 Hz
Communication
- USB
Laser Port
- One (Free air)
Output Port
- One
Filters
- Four with automated filter wheel
Dimensions (cm)
- 33 x 33 x 14
Weight (kg)
- 10
Pinhole
Aperture
- Variable
Alignment
- Computer controlled
Diameter
- 20 µm to 1000 µm
Galvo Mirrors
Mirrors dimensions
- 5 x 5 mm
Mirrors coating optimal ranges
- UV enhanced Al: 250 - 450 nm
- Broadband dielectric: 375 - 800 nm
Rated Angular Excursion
- 40°
Rotor Inertia
- (0.125 ± 10%) gm • cm2
Torque Constant
- (6.17x104 ± 10%) dyn • cm/A
Maximum Coil Temperature
- 110 °C
Coil Resistance
- (2.79 ± 10%) Ω
Coil Inductance
- (180 ± 10%) µH
Back EMF Voltage
- (108 ± 10%) µV/deg/s
Current, RMS
- 3.9 A, Maximum
Current, Peak
- 20 A, Maximum
Small Angle Step Response
- 200 µs, with appropriate CTI Y mirror
Linearity
- Over 99.9%, minimum, over 40° optical
Scale Drift
- 50 PPM/°C, Maximum
Zero Drift
- 15 microradians/°C, Maximum
Repeatability
- 8 microradians, Maximum
Output Signal, Common Mode
- 155 A, with AGC Voltage of 30 mA, ±20%
Output Signal, Differential Mode
- 11.7 µA/deg, with Common Mode of 155 A, ±20%
Descanning Lens
Transmission Cruve
Details
- It is a high aperture laser objective achromatic system (f = 60 mm, NA = 0.19) made of a cemented achromat and aplanatic meniscus lens with a 40 mm diameter. The lens features an anti-reflection ARB2-line coating.
