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Dove Prism

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            Dove Prism is a form of prism invented by H. W. Dove. It resembles half of a common right-angle prism in which a ray entering parallel to hypotenuse face is reflected internally at that face and emerges parallel to its incident direction. One of the incident rays emerges along a continuation of its incident direction, and if the prism is rotated about that ray through some angle, the image rotates through twice that angle. A Dove Prism must be used in parallel light.

180° deflection prism has another application. The prism is used as a retroreflector. For this application it perform as a right angle prism that is used 180° deflection.

Specification:
Material
see the table
Dimension Tolerance
+0.0, -0.2mm
Clear Aperture
> 85%
Angle Tolerance
< 3 arc minutes
Flatness
λ/2 @ 632.8nm
Surface Quality
60-40 scratch and dig
Bevel
from 0.2mm to 0.5mm x 45°
Deflection Model
180° deflection
Coating
R < 0.25% @1550nm on big face

          (input and output at the same face)

Part  No.

Material

Model

A(mm)

B(mm)

h(mm)

INF-DP101

SF11

180°

9.34

2.6

1.3

INF-DP102

SF11

180°

14.0

5.0

2.6

INF-DP201

BK7

Dove

21.1

5.0

5.0

INF-DP202

BK7

Dove

42.3

10.0

10.0

INF-DP203

BK7

Dove

63.4

15.0

15.0

INF-DP103

BK7

180°

80.0

20.0

20.0

INF-DP101

SF11

180°

9.34

2.6

1.3

Custom designs for other sizes and coatings are also available upon request.


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