The leading company for pre owned electronics equipment Special Sale Edmund Optics 43795 FRESNEL IR 1.5X1.5 IR Fresnel lenses are molded in a flexible, 0.015" (0.457mm) thick, milky white plastic. Advantages of this product are: least absorption loss in the 8-14?m region, extremely thin with consistent thickness across the lens, large apertures and minimal thermal expansion. The design of an infrared-transmitting Fresnel lens involves many complex considerations. The grooved side of a Fresnel lens should face the longer conjugate (away from the detector when used to collect radiation). If the smooth side needs to face the longer conjugate for some nonoptical reason, the maximum aperture of the lens should be f/1.0. In this case, total internal reflection keeps all radiation from the area of the lens past f/1.0 from reaching the image. Even when the grooves face the longer conjugate, the portion of the lens past f/1.0 contributes a diminished amount and there is no significant contribution past f/0.5. For more information: About us About us About us Y.S. Metronics" was established in 1989 and specializes in trading electronic test equipment, surplus electronic equipment and electronic components for the Israeli market and all over the world . "Y.S. Metronics" is proud to display the larg inventory, at prices for all pockets. Our shelves are full of various test equipment from the world's leading manufacturers. We stock items manufactured by LAMBDA, WAVETEK, FLUKE, WILTRON, TEKTRONIX, HP/AGILENT and many, many more. We have a vast inventory of electronic components and hardware, including over 30 tons of wire and cables, connectors of a variety of shapes and sizes, and sleeves and shrink for most applications. "Y.S. Metronics" has wide customer base and provides local and foreign customers with a large variety of components such as ? power supplies, connectors, resistors, cables, diodes, cable ends and terminals, switches with and w/o illumination, RF components, satellite equipment, communication equipment, etc. We are committed to providing professional and fast service with varied payment options. Payment Payment Payment We accept payment by any of the following methods: PayPal Please pay as soon as possible after winning an sale, as that will allow us to post your item to you sooner! Shipping Shipping Shipping There is a possibility for fast delivery(EMS. between 3 to4 business days) atan additional charge Your purchase will be carefully packaged for shipping using bubble wrap. we cannot be responsible for uninsured packages that got lost or damaged during shipping . Import duties end taxes are not included in the item price or shipping charges. These charges are for the buyer's responsibility Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying Please, allow approximately 5 to 25 business days for shipment. . Click here to see description The leading company for second hand electronics equipment DPMB9058 GaAs Bi-Phase Modulator 10-500 MHz There is little damage in connector It does not bother connected to the connector Cables and components. For more information: PDF About us Y.S. Metronics" was established in 1989 and specializes in trading electronic test equipment, surplus electronic equipment and electronic components for the Israeli market and all over the world . "Y.S. Metronics" is proud to display the larg inventory, at prices for all pockets. Our shelves are full of various test equipment from the world's leading manufacturers. We stock items manufactured by LAMBDA, WAVETEK, FLUKE, WILTRON, TEKTRONIX, HP/AGILENT and many, many more. We have a vast inventory of electronic components and hardware, including over 30 tons of wire and cables, connectors of a variety of shapes and sizes, and sleeves and shrink for most applications. "Y.S. Metronics" has wide customer base and provides local and foreign customers with a large variety of components such as ? power supplies, connectors, resistors, cables, diodes, cable ends and terminals, switches with and w/o illumination, RF components, satellite equipment, communication equipment, etc. We are committed to providing professional and fast service with varied payment options. Payment We accept payment by any of the following methods: PayPal Please pay as soon as possible after winning an sale, as that will allow us to post your item to you sooner! Shipping There is a possibility for fast delivery(EMS. between 3 to4 business days) atan additional charge Your purchase will be carefully packaged for shipping using bubble wrap. we cannot be responsible for uninsured packages that got lost or damaged during shipping . Import duties end taxes are not included in the item price or shipping charges. These charges are for the buyer's responsibility Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying Please, allow approximately 5 to 25 business days for shipment. CAT 9