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Home > Product Details > HR Optical Bench Options

HR Optical Bench Options

HR Optical Bench Options 1 2 3 4 5 6 7 8 9 10

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SMA 905 Connector
Light from a fiber enters the optical bench through an SMA 905 connector.

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Fixed Entrance Slit
Light passes through the slit, which acts as the entrance aperture.

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Longpass Absorbance Filter
An optional filter used to limit the bandwidth of light entering the spectrometer or to balance color.

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Collimating Lens
Light reflects from this mirror as a collimated beam toward the grating.

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Grating
Gratings are fixed in place at the time of spectrometer assembly.

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Focusing Mirror
This mirror focuses first-order spectra on the detector plane.

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Detector Collection Lens
Optional cylindrical lens increases light collection efficiency.

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Detector
Linear CCD arrays available in 2048- and 3648-element versions.

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OFLV Variable Longpass Order Sorting Filter
Filters block second- and third-order light from specific detector elements.

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UV Upgrade
Optical bench option for applications <340 nm.

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Light from a fiber enters the optical bench through the SMA 905 connector. The SMA 905 bulkhead provides a precise locus for the end of the optical fiber, fixed slit, absorbing filter and fiber clad mode aperture.

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Light passes through the installed slit, which acts as the entrance aperture. Slits come in various widths from 5 µm to 200 µm. The slit is fixed in the SMA 905 bulkhead to sit against the end of a fiber.

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If selected, an absorbance filter is installed between the slit and the clad mode aperture in the SMA 905 bulkhead. The filter is used to block second- and third-order effects or to balance color.

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The collimating mirror is matched to the 0.22 numerical aperture of our optical fiber. Light reflects from this mirror, as a collimated beam, toward the grating. You can opt to install a standard mirror or a UV absorbing SAG+ mirror.

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We install the grating on a platform that we then rotate to select the starting wavelength you’ve specified. Then we permanently fix the grating in place to eliminate mechanical shifts or drift.

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This mirror focuses first-order spectra on the detector plane. Both the collimating and focusing mirrors are made in-house to guarantee the highest reflectance and the lowest stray light possible. You can opt to install a standard or SAG+ mirror.

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One of these cylindrical lenses, made in-house to ensure aberration-free performance, is fixed to the detector to focus the light from the tall slit onto the shorter detector elements. These lenses increase light-collection efficiency.

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We offer two detectors for the “HR” Bench; both are linear CCD arrays. Each pixel responds to the wavelength of light that strikes it. Electronics bring the complete spectrum to the software.

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Our proprietary filters precisely block second- and third-order light from reaching specific detector elements.

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When a UV upgrade is selected, the detector’s standard BK7 window is replaced with a quartz window to enhance the performance of the spectrometer for applications <340 nm.

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View HR2000+ or HR4000 Custom Configured Product