Prism
Prisms are blocks of optical material with flat polished sides arranged at precisely controlled angles to each other, which deflect, deviate and rotate light beams as well as disperse the wavelength. THATSHIGH provides diverse high precision prisms for different applications. Prisms | Material | Illustration | Property & Application Beam Splitter Penta Prism | BK7 | | By adding a wedge and with partial refractive coating on surfaces S1, Penta prism can be used as a beamsplitter. Right Angle Prisms | BK7 Fused Silica | | Right angle prism is deviating or deflecting a beam of light with 90° or 180°.It is often used in telescope, periscope and other optical system. Furthermore, Laser grade right angle prism is also available. Dispersion Prism | BK7 Fused Silica SF-14 | | A commonly used optical component for dispersing the spectrum. Dove Prism | BK7 | | Dove prism has two applications. Being used as a rotator, it can rotate an image but without deviating the beam. When the prism is rotated about the input parallel ray through some angle, the image rotates through twice that angle. It is very important that, in this application,the prism must be used with parallel or collimated beam and the large square reflective surface should be kept very clean. This prism has other application of being used as a retroreflector, in which it performs as a right-angle prism. Wedge Prism | BK7 Fused Silica | | Wedge prisms have similar function with optical windows. They all can be used as isolating components. Wedges may be used to produce a small deviation, which don’t allow returning to the source. Roof Prism | BK7 | | Roof prism is normally combined with a right angle prism and a totally internally reflecting roof, attaching by their largest square surfaces. It can invert and reverse an image, as well as deflect the image by 90° . Therefore, it is often used in terrestrial telescopes, viewing systems and rangefinders.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material [Standard Prism] | BK7 Grade A optical glass |
| Dimension Tolerance [Standard Prism] | +0mm, -0.2mm |
| Flatness [Standard Prism；632.8nm] | λ/6 |
| Surface Quality [S/D] [Standard Prism] | 20/10 |
| Clear Aperture [Standard Prism] | > 80% central area |
| Bevel [Standard Prism；45°] | (0.1-0.5)mm×45° |
Datasheet
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Supplier Information
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Prisms turn and displace light at specified angles and can adjust image orientation. Their shape and function depend on their interaction with light. Incident light may reflect from one or more surfaces before exiting, or refract while passing through the substrate. Baijing offers forms including triangular prisms, pentaprisms, Dove prisms, Powell prisms, roof prisms, and corner cubes.
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Penta Prism is a five-sided prism containing two reflecting surfaces at 45° to each other, and two refracting faces perpendicular to the entering and emerging beams. The standard Penta Prism reflecting surfaces are coated with aluminum or enhanced aluminum.
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Roof prisms rotate and invert images and bend light by 90°. Suitable for telescopes and other optical instruments that need to invert the objective image, turn it right-side up, and bend the path by 90° to maintain the correct viewing orientation.
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