AHRJ-OE_FC_AD_12_HARW
The Assisted Fiber-optic & Electrical Rotary Joint is electrically driven as it senses and follows the tethered animal’s rotations. It detects the torsion of the optical cable during the animal movements and releases it with a very high sensitivity
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The Assisted Fiber-optic & Electrical Rotary Joint is electrically driven as it senses and follows the tethered animal’s rotations. It detects the torsion of the optical cable during the animal movements and releases it with a very high sensitivity. A good electrical signal transmission requires frictional contacts that brake the rotation of the rotary joint. The assistance of this rotary joint helps to counter the resistive force and offers a good transmission of the signal during experiment with freely moving small animals like mice. It comes with 12 electrical contacts and one optical channel with FC receptacles on both ends.
If the experiment requires a really stable output (e.g. miniaturized fluorescence microscopy), we recommend the use of the Pigtailed Assisted Fiber-optic & Electrical Rotary Joints (AHRJ-OE_PT_AH_12_HDMI and AHRJ-OE_PT_AH_12_USB-C, see the Miniaturized Fluorescence Microscopy section). These rotary joints have pigtailed input (1 m) and output (0.2 m) fiber-optic patch cords of 200 µm diameter, NA 0.48 with a light weight metal jacket.
The Assisted Fiber-optic & Electrical Rotary Joints can be designed with two types of lenses: achromatized doublet (AD) and aspheric 0.53 NA (AH). The achromatized doublets AD allow a near-equal focal distance for wavelengths between 450 nm and 650 nm, minimizing chromatic aberration. Our AD models are designed for use with a 200 µm core, 0.22 NA optical fiber. The 0.53 NA aspheric AH is optimized for reduced optical aberration. It is designed for use at a wavelength of 470 nm.
Contact us to discuss the possibility of custom wavelengths and NA.
Notes:
• The holder for the Assisted Fiber-optic & Electrical Rotary Joint is included (Holder_ARJ).
• The output fiber-optic patch cords are also included.
