When the input light is incident on the face of the hypotenuse, it undergoes TIR at the glass/air boundary at the prism legs. Video 2 (to the right below) shows how the right-angle prism can be used as a 180° retroreflector. This 90° deviation of the input light makes the right-angle prism a suitable alternative to a mirror. When the input light is incident on one of the prism's legs, it undergoes TIR at the glass/air boundary of the hypotenuse and exits via the other prism leg. Our N-BK7 right-angle prisms are available uncoated or with one of our three standard broadband antireflection coatings (-A: 350 - 700 nm, -B: 650 - 1050 nm, -C: 1050 - 1700 nm) on either the hypotenuse or both legs, thereby reducing surface losses.ĭue to total internal reflection (TIR), Video 1 (to the left below) demonstrates how the right-angle prism can be used as a 90° reflector. These prisms are fabricated from N-BK7, UV fused silica, CaF 2, or ZnSe, and they are offered in sizes ranging from 3 mm to 60 mm. Thorlabs' high-precision Right-Angle Prisms can be used to deviate a light path by 90° or 180°, depending on which surface is used as the input for the light source. N-BK7 Prisms Available with an AR Coating on the Hypotenuse or Both Legs.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |