Dove Prism

Short Description:

Dove prism is also called trapezoidal prism.
The uncoated dove prism is mainly used for rotating the image in the optical mechanical system. It can rotate the image 180
degrees. The coating dove prism is mainly on the reflector aluminized reflective film, and the antireflection coating is applied on the incident surface for the imaging system


Product Detail

Product Tags

Description 

Named for its inventor Harting Dove, dove prisms (with antireflection coatings on the ends) completely invert an image by 180 degrees. If the prism is rotated about its axis the image will rotate at twice the rate of rotation of the prism.

The Dove Prism is also called Image Rotator. The prism rotates the image without changing the direction of the input beam, which is parallel to hypotenuse. Rotation of the prisms in relation to the subject causes double rotations of the image. Dove Prism should be used in the parallel beam. A-STAR also offers Dove prisms AR coated on the hypotenuse for use in beam-folding applications. As the S1 and S2 sides are used in a total internal reflection (TIR) manner, it is extremely important to keep these two surfaces clean.

The wavelength of  SYCCO  general windows substrate(without coating)

图片1

Dove Prism Specifications

Attribute Specification
Material: N-BK7 Grade A optical glass
Dimension Tolerance: +0.0/-0.2mm
Deviation: 3 arc min.
Flatness: λ/2@632.8nm
Clear Aperture: >80%(Small Size),>95%(Large Size)
Surface Quality: 60/40
Bevel: 0.1-0.5
Coating: Uncoated

Materials characteristic

B270

CaF2

Ge

MgF2

N-BK7

Sapphire

Si

UV Fused Silica

ZnSe

ZnS

Refractive index (nd)

1.523

1.434

4.003

1.413

1.517

1.768

3.422

1.458

2.403

2.631

Coefficient of dispersion (Vd)

58.5

95.1

N/A

106.2

64.2

72.2

N/A

67.7

N/A

N/A

Density(g/cm3)

2.55

3.18

5.33

3.18

2.46

3.97

2.33

2.20

5.27

5.27

TCE(μm/m℃)

8.2

18.85

6.1

13.7

7.1

5.3

2.55

0.55

7.1

7.6

Soften Temperature(℃)

533

800

936

1255

557

2000

1500

1000

250

1525

Knoop hardness

(kg/mm2)

542

158.3

780

415

610

2200

1150

500

120

120

Packaging & Delivery

图片2

  • Previous:
  • Next:

  • Write your message here and send it to us

    Products categories