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Location: Main > Optical Prisms > Dove Prisms > DVP-3-H1.5-Al
Name: 3.0x3.0mm Dove Prism BK7(Coated)-L25.0mm(Pinholed)
P/N: DVP-3-H1.5-Al
Keywords:3x3xL25mm,BK7.Dove Prism,P-Al coated;Hole1.5mm
Unit Price: S$120.00/pc
Available: In stock
Request: Add to Request List
Introduction:
Dove prisms are reflective prisms which are commonly used to invert an image, especially when the inverted image cannot be laterally transposed. The shape of a Dove prism follows that of a truncated right-angle prism. The applications of Dove prisms are based on the theory of total internal reflection, causing the images that pass through the Dove prism to be flipped.

The Dove prism is designed as an image rotator. If the Dove prism is rotated along its longitudinal axis, the image transmitted through the prism will rotate by an angle twice of that of the rotation of the prism. Therefore Dove prisms can rotate a beam of light by an arbitrary angle, an important feature required in astronomy and interferometry.
 Substrate Material:  BK7 Optical Glass; 
 Dimensions:  
 A=3.0mm
 B=4.2mm
 L=25.0mm
 
 Dimension Tolarence:  +/-0.1mm
 Surface Quality:  40/20 Scratch and Dig (Optical surfaces: two 45-deg-angled surfaces and the larger bottom surface);
 Flatness (Optical Surfaces):  < Lambda/10 @ 633nm over clear aperture(>85% of endface)  per 25mm 
 Angular Tolerance:  Within +/-3 arc. min
 Other surfaces:  Ground only 
 Coating:

(1) 45-deg angled surfaces(3.0x4.2mm): protected Al coating/internal high reflection (2 optical surfaces)

(2) Large bottom surface(3.0x25.0mm): protected Cr/Al coated; Shadow mask processing on one end with Diameter of 1.5mm pinhole(uncoated in this area), and on the other end with 3.0x3.0mm uncoated area. See drawing

 Packing:  1pc/pk;Vacuum packed