(6) Amici Prisms are also known as Roof Prisms. When passing an image through, they erect the image and deviate the beam 90°. Exceptionally good as prism diagonals in telescopes as they erect the image and make it acceptable for a terrestrial type viewing scope. Useful in enlarging to deviate the beam 90°.
These five sided prisms are used to deviate the incident beam 90° independent of small positional changes of the prism relative to the beam. The image is neither inverted nor reverted. Reflecting faces are AlSiO coated.
(2) These five sided prisms are used to deviate the incident beam 90° independent of small positional changes of the prism relative to the beam. The image is neither inverted nor reverted. Reflecting faces are AlSiO coated.
(8) The Corner Cube Prism actually represents a cube with one corner cut off so that there are three mutually orthogonal surfaces. The Corner Cube will reflect all light rays towards their source. As each face contrib¬ utes to the total amount of deviation the angular deviation can only be a fraction of the total deviation.
(9) Cube Beamsplitters are formed by bonding together two Right Angle prisms with appropriate coatings on the interface. These beamsplitters are used to avoid ghost images which sometimes occur with plate type splitters.
(6) Dove Prisms are also known as Reversion prisms. When the prism is rotated about its length axis, the image viewed through the prism rotates at twice the prism rotation rate. This is an unusual and sometimes useful property for special applications. Entry and exit faces are anti-reflection coated.
(6) Equilateral or dispersion prisms have three equal 60° angles and are ideal for demonstrating that white light is a combination of all colors of the spectrum. May be used in refraction experiments and spectroscopes, also widely used in classrooms for demonstrations.
(7) These five sided prisms are used to deviate the incident beam 90° independent of small positional changes of the prism relative to the beam. The image is neither inverted nor reverted. Reflecting faces are AlSiO coated.
(6) ROLYN Precision Alignment Cubes can be set on any of the ground faces as desired to position the precision alignment faces for angle measurement. Other sizes and numbers of precision faces can be supplied on request.
(4) The Rhomboid Prism is a simple means of displacing the line of sight without affecting the orientation of the image or deviating the line of sight. The Rhomboid Prism and its reflections are shown. End faces are square.
(53) Right Angle Prisms are the most popular of all prisms. They are used to deviate a beam 90° when used as shown or 180° when beam enters normal to the hypotenuse. Typical applications are: telescope diagonals, range finders, periscopes, cameras, bore sights, cube beam splitters, etc.
Schmidt prisms erect the image and deviate the incoming beam 45°. The image is also reverted left to right. Used in 45° eyepiece holders to get right-reading images when combined with eyepiece and objective lenses.
(8) Wedge Prisms are used to deviate a light beam through some specified angle. When used in pairs the deviation can be varied from zero to the sum of the individual prism deviation angles by varying the angular relationship of the two prisms with respect to each other.
Rolyn Optics Co. • 706 Arrowgrand Circle •
Covina, CA 91722
