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  | Frequently asked questions about... |
 | Optics | |
| Lasers | |
| Hardware and Positioners | |
| Laser Beam & Spectral Measurement | |
| Machine Vision | |
| Shutters | |
| Tables & Breadboards | |
| Microscope Components | |
| Apertures & Spatial Filters | |
| Lab Accessories |
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| I would like to order an optical tabletop and mount my large frame laser under the table to save space. What exactly do I need to order for a complete system?
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There are many times when it is inconvenient and impractical to put a large laser on the top surface of a tabletop. For this situation, Melles Griot has a shelf designed to fit under the tabletop that allows a laser to be mounted below. The beam is then steered using mirrors to the tabletop surface via a laser port allowing the entire table surface to be used for an experiment.
To place an order for this system, there are four key points to remember:
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| What is the difference between your SuperDamp Self-Leveling Vibration and Pump & Go Passive Vibration Isolators?
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| The Pump & Go Isolators are the first step up from simple rigid legs. They are a simple and economical alternative when ultra stability isn't required. These isolators are intended for applications such as Bioimaging, Raman spectroscopy and Micropositioning. The isolators contain a reinforced rubber air mount to act as a soft damped spring. The Pump & Go isolators have also been designed to operate for long periods of time without consuming air. Air can be adjusted with a simple foot pump through a standard Schrader valve located near the bottom of the leg.
The SuperDamp Isolators provides both vertical and horizontal dampening. These isolators are intended for applications such as Interferometry, Holography and Single-mode fiber alignment. Vibrations from the floor are dampened by passing air through two chambers. The resistance this air meets at the interface of the chambers helps to dampen the vertical vibrations. A design similar to that of a pendulum uses gravity to reduce the horizontal vibrations that the may effect experiments on the table. The SuperDamp Isolators are an active system. To allow for changes in load distribution, these isolators have a self-leveling system. The isolators allow for a range of motion of 13mm to compensate for an uneven floor. As a reminder, a continuous airflow must be supplied to these isolators. The main structure of all our isolators is the same, allowing for the rigid and Pump & Go to be upgraded if needs and applications change. | |
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What items do I need to purchase for a complete table enclosure?
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| In the catalog the different parts are labeled A through E. For a complete system you would need to choose one part from each of the letters.
A: Choose either an open or paneled lower frame. The height of the frame is 36". These frames will accommodate any manufacturers tables provided the outside dimensions are the same. There is approximately a 1" gap between the table and the enclosure on all four sides of the table. B: There is only one size of upper frame for our enclosures. The distance from the lower frame to the top of the upper frame (where the translucent windows fit) is 36". C: The sliding windows are not essential to the enclosure system but do help provide isolation between the experiment and outside air turbulence in the lab. D: The accessory shelf allows the user to keep instruments which may interfere with the experiments (due to vibrations from a fan or pump) away from the work surface. The shelf hangs down approximately 17" from the top of the upper enclosure and is 22" wide. E: When you purchase the paneled lower frame (letter "A") the center section on all four sides will be open. This option allows the user to fill in these sections with either doors or panels. There is also the option of filling these spaces with rolling utility cabinets. | |
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I would like to order a tabletop system with legs,
but I'm not sure how to pick the system. What would
I need for a complete system?
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First of all, a tabletop would need to be chosen based
on a few parameters. For more detail on choosing the
system, please see the following link. Selecting
and Optical Table.
Second, a leg support system would need to be chosen based on your application.
Third, any accessories like instrument shelves for the system would need to be chosen.
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Your catalog lists the dynamic deflection coefficient for
the tabletops, but not for the breadboards. What are
the typical specs for the breadboards?
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For
a comparison of the breadboards, the following data
has been calculated for each of our 0.9m x 1.2m breadboards.
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