Thorlabs AC254-150-A-ML - f=150 mm, BBAR Coating 400-700 nm, Ø1" Achromatic Do

Description: This is a Thorlabs AC254-150-A-ML - f=150 mm, Ø1" Achromatic Doublet, SM1-Threaded Mount, BBAR Coating 400-700 nm What you will get: Thorlabs AC254-150-A-ML - f=150 mm, Ø1" Achromatic Doublet, SM1-Threaded Mount, BBAR Coating 400-700 nm This is my item R20B7S4 PC0852. This was removed from a prototype machine that was never put into production. This is available from Thorlabs for $116.42. 1 was available at listing time. More Information: AR Coated for the 400 - 700 nm Range Diameters from 5 mm to 2" Available Engraved Threaded Housing Enables Easy Integration into Thorlabs’ Optomechanics Housing on Lenses Ø1/2” and Larger Includes Focal Length and Coating Information Focal Lengths Available: 7.5 mm to 1000 mm Thorlabs' Cemented Visible Achromatic Doublets are available pre-mounted in engraved threaded mounts, making it easy to incorporate these optics into your setup. Choose from 7 diameters: Ø5 mm, Ø6 mm, Ø6.35 mm, Ø8 mm, Ø1/2", Ø1", or Ø2". Please see our Visible Achromatic Doublets to purchase these lenses unmounted. The engraving on mounts 1/2" or larger in diameter clearly indicates the part number, focal length, and antireflection coating deposited onto the surface. The engraved arrow points from the side of the lens with the larger radius of curvature (flatter side) to the side with the smaller radius of curvature and indicates the recommended direction of light propagation to collimate a point source. If focusing a collimated beam, the engraved arrow should point in the opposite direction of light propagation. An infinity symbol denotes that this lens has an infinite conjugate ratio (i.e., if a diverging light source is placed one focal length away from the flatter side of the lens, the light rays emerging from the curved side will be collimated). Mounts smaller than Ø1/2" are engraved with the part number only. These achromatic doublets, which are designed for use in the visible spectral region (400 - 700 nm), are computer optimized at infinite conjugate ratios. The design wavelengths used are the helium "d" (587.6 nm, yellow), hydrogen "F" (486.1 nm, blue/green), and hydrogen "C" (656.3 nm, red) lines since they reasonably represent the visible spectrum and are used to define the Abbe Number, Vd, of a material. For applications in wavelength regimes less than 410 nm, Thorlabs’ air-gap UV doublets provide excellent performance down to 240 nm. Achromatic doublets are useful for controlling chromatic aberration and are frequently used to achieve a diffraction-limited spot when using a monochromatic source like a laser. Refer to the Application tab above for information about the superior performance of achromatic doublets compared to singlet lenses. In the specification tables below, a positive radius of curvature indicates that the surface is opening to the right when the lens is oriented as shown in the reference drawing while a negative radius of curvature indicates that the surface is opening to the left. Both the positive and negative lenses have an infinite conjugate ratio (i.e., if a diverging light source is placed one focal length away from the flatter side of the lens, the light rays emerging from the curved side will be collimated). For best performance, the side of the lens with the largest radius of curvature (flattest side) should face away from the collimated beam. Please see the diagram under the reference drawing link below for details. Custom Achromatic Lenses Thorlabs' optics business unit has a wide breadth of manufacturing capabilities that allow us to offer a variety of custom achromatic optics for both OEM sales and low quantity one-off orders. Achromatic optics with customer-defined sizes, focal lengths, substrate materials, cement materials, and coatings are all available as customs. In addition, we can offer optics that exceed the specifications of our stock catalog offerings. To receive more information or inquire about a custom order, please contact Tech Support. Please use the shipping calculator to determine shipping. Check out my other items! If you receive your item and it is not to your 100 Percent Satisfaction, please contact us before leaving feedback. I strive to make sure every transaction is a positive one! IF you have a problem with my item, I would like you to use the "Contact Seller" link in the listing, or call me. Please don't open a case. Cases count against me even if they are resolved. I stand behind my items and will work out any problems that you may have with an item. So please contact me if you have a problem with an item I have sold you and don't use the eBay Case as a means of communication. International Buyers, Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as "gifts". US and International government regulations prohibit such behavior. Powered by SixBit's eCommerce Solution

Price: 59.99 USD

Location: Natick, Massachusetts

End Time: 2024-09-22T22:44:37.000Z

Shipping Cost: 1 USD