![]() ![]() The third type is externally SM threaded for direct compatibility with any of our internally SM-threaded components, such as our rotation mounts. ![]() The second type, designed for post mounting, contains an 8-32 (M4) tapped hole on all four sides for direct mechanical compatibility with Ø1/2" Posts. The first type is designed to be mounted in any Ø1", Ø2", or Ø3" mirror mount, depending upon the diameter of the OAP mirror. We offer three types of mounting plates for Ø1/2", Ø1", and Ø2" OAP mirrors. The tapped holes are also useful in OEM applications. Together, these features allow our OAP mirrors to be securely mounted. These holes are used to attach our Mounting Adapters, which contain three corresponding counterbore holes or captive screws and an alignment pin (see the image to the right). The bottom of each off-axis parabolic (OAP) mirror contains three tapped mounting holes in a triangle pattern and an alignment hole. For information on how to clean mirrors and other optics, visit our Optic Cleaning Tutorial. Silver mirrors should be used and stored in areas at room temperature with minimal humidity. Even with such precautions, care should be taken not to touch the mirrored face or edges. Latex gloves or similar protective coverings are recommended to prevent oil and other residues on the user’s fingers from reaching the optical surface. When working with silver mirrors, follow standard practices for handling optics. Fingerprints, contact with abrasive surfaces, and environments with high humidity or temperature will diminish the effectiveness of the protective overcoat leaving the silver coating susceptible to oxidation and degradation. Silver coated mirrors require additional care due to their susceptibility to damage from environmental conditions and improper handling. The non-optical surfaces are black anodized and laser engraved with the item number for easy identification. The bottom of each mirror has three tapped mounting holes in a triangle pattern and an alignment hole for use with a mounting adapter (see the OAP Mounting tab for more details). The OAP mirrors sold here are fabricated using aluminum substrates, and the diamond-turned parabolic surface has a protected silver coating that provides >97% average reflectance from 450 nm - 2 µm and >95% average reflectance from 2 µm to 20 µm (see the Graphs tab for a plot of the coating performance). As shown to the left, the propagation axis of the collimated beam should be normal to the bottom of the substrate to achieve a proper focus. The OAP mirrors on this page have off-axis angles of 15°, 30°, 45°, or 60°. The angle (θ) between the focused beam and the collimated beam is called the "off-axis angle". The geometry of our OAP mirrors is shown to the left. Our entire Zemax Catalog is also available. The all-reflective design eliminates phase delays and absorption losses introduced by transmissive optics and makes them well suited for use with femtosecond pulsed lasers.Ĭlick on the red Document icon next to the item numbers below to access the Zemax file download. They achromatically focus a collimated beam or collimate a broadband divergent source, and their off-axis design spatially separates the focal point from the rest of the beam path. Thorlabs' Off-Axis Parabolic (OAP) Mirrors are mirrors whose reflective surfaces are segments of a parent parabolic mirror. One Mounting Adapter for Ø3" Mirrors with External SM2 Threading and 8-32 Taps for Post Mounting.Three Kinds of Mounting Adapters for Ø1" and Ø2" Mirrors:.Off-Axis Angles of 15°, 30°, 45°, or 60° (See Diagram Below). ![]() ![]() Collimates a Divergent Source or Focuses a Collimated Beam without Spherical or Chromatic Aberrations. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |