Optical Component

Optical Component

道威棱镜Doveprism

Dove prism

Dove prisms are shaped from a truncated right-angle prism. A beam of light entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest (bottom) face and emerges from the opposite sloped face. Images passing through the prism are flipped, and because only one reflection takes place, the image's handedness is changed to the opposite sense. Dove prisms have an interesting property - when they are rotated along their longitudinal axis, the transmitted image rotates at twice the rate of the prism. It is very important that the application must be used with parallel or collimated beam and the large square reflective surface should be kept very clean. Another application is used as a retroreflector. For this application it performs as a right-angle prism.

 

Dove prism

Material

H-K9L (Schott BK7)/Fused Silica/glass

 

Dimension  Tolerance

±0.1mm

 

Surface Accuracy

L/4@632.8nm

 

Surface Quality

40-20

 

Angular Tolerance                   

±3 arc min

 

Clear Aperture

>90%

 

Bevelling

<0.2 *45

 

Coating

Custom Design

 

 

 

 

 

 

 

 

 

No.

A=C(mm)

B(mm)

D(mm)

SQ

Flatness

Angular Tolerance

 

41Q990

5.00

21.21

7.07

40-20

L/4

3'

 

41Q991

10.00

42.42

14.14

40-20

L/4

3'

 

41Q992

15.00

63.63

21.21

40-20

L/4

3'

 

41Q993

30.00

127.26

42.42

40-20

L/4

3'