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GCC-501302 Protect Silver 90˚off-axis parabolic mirror

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GCC-501302 Protect Silver 90˚off-axis parabolic mirror

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361.5
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361.5
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GCC-5011 90°Off-Axis Parabolic Mirrors


The Off-Axis Parabolic Mirrors achromatically focus a collimated beam or collimate a divergent source, and their off-axis design separates the focal point from the rest of the beam path. The mirrors are fabricated using aluminum substrates. The parabolic surface has a protected gold coating which provides >95% average reflectance from 650nm to 20µm. The bottom of each mirror has three M4 mounting holes for easy installation and fixing. Now we have protect gold, protect silver and UV enhanced aluminum off-axis parabolic mirror for options.

 

Selection guide

When using off-axis parabolic mirror collimation point light source, according to the required output beam diameter to select the appropriate mirror, using the divergence Angle of incident light and parabolic mirror reflection effective focal length to calculate the beam diameter. Calculated by the small Angle approximation, the beam diameter, formula is as follows:

 

Beam Diameter = sin(θ) x REFL

 

If the output beam is from collimation optical fiber, the formula is as follows:

 

Beam Diameter = 2 x NA(fiber) x REFL

 

Specification:

Metallic Coating Protected Gold   UV Enhanced Aluminum   Protect Silver  
Reflectance (Average) >96%@650nm-20um   >85%@250nm-700um   >95%@450nm-20um  
Off-Axis Angle 90°   90°   90°  
Clear Aperture >90% of Diametera   >90% of Diametera   >90% of Diametera  
Surface Roughness (RMS)  < 10nm    < 10nm    < 10nm  
Surface Quality  40-20 Scratch-Dig    40-20 Scratch-Dig    40-20 Scratch-Dig  
Parent Focal Length Tolerance ±1%   ±1%   ±1%  
Reflected Focal Length Tolerance ±1%   ±1%   ±1%  
Substrate Aluminum   Aluminum   Aluminum  

 

GCC-5011 Protect Gold 90°Off-Axis Parabolic Mirrors

Part No.

Part Name

Parent Focal Length

Reflected Focal Length

Center offset

Diameter

A

B

C

GCC-501101

90˚off-axis parabolic mirror

25.4

50.8

50.8

50.8

57.2

25.4

6.4

GCC-501102

90˚off-axis parabolic mirror

50.8

101.6

101.6

50.8

57.2

28.5

6.4

GCC-501103

90˚off-axis parabolic mirror

76.2

152.4

152.4

50.8

57.2

29.7

6.4

GCC-501104

90˚off-axis parabolic mirror

12.7

25.4

25.4

25.4

38.1

15.9

6.4

GCC-501105

90˚off-axis parabolic mirror

25.4

50.8

50.8

25.4

38.1

17.45

6.4

GCC-501106

90˚off-axis parabolic mirror

38.1

76.2

76.2

25.4

38.1

18.05

6.4

GCC-501107

90˚off-axis parabolic mirror

50.8

101.6

101.6

25.4

38.1

18.3

6.4

GCC-501111

90˚off-axis parabolic mirror with through holes

25.4

50.8

50.8

50.8

57.2

25.4

6.4

GCC-501112

90˚off-axis parabolic mirror with through holes

50.8

101.6

101.6

50.8

57.2

28.5

6.4

GCC-501113

90˚off-axis parabolic mirror with through holes

76.2

152.4

152.4

50.8

57.2

29.7

    6.4

GCC-5012 UV Enhanced Aluminum 90˚Off-axis Parabolic Mirror

Part No.

Part Name

Parent Focal Length

Reflected Focal Length

Center offset

Diameter

A

B

C

GCC-501201

90˚off-axis parabolic mirror

25.4

50.8

50.8

50.8

57.2

25.4

6.4

GCC-501202

90˚off-axis parabolic mirror

50.8

101.6

101.6

50.8

57.2

28.5

6.4

GCC-501203

90˚off-axis parabolic mirror

76.2

152.4

152.4

50.8

57.2

29.7

6.4

GCC-501204

90˚off-axis parabolic mirror

12.7

25.4

25.4

25.4

38.1

15.9

6.4

GCC-501205

90˚off-axis parabolic mirror

25.4

50.8

50.8

25.4

38.1

17.45

6.4

GCC-501206

90˚off-axis parabolic mirror

38.1

76.2

76.2

25.4

38.1

18.05

6.4

GCC-501207

90˚off-axis parabolic mirror

50.8

101.6

101.6

25.4

38.1

18.3

6.4

GCC-501307 Protect Silver 90˚Off-axis Parabolic Mirror

Part No.

Part Name

Parent Focal Length

Reflected Focal Length

Center offset

Diameter

A

B

C

GCC-501301

90˚off-axis parabolic mirror

25.4

50.8

50.8

50.8

57.2

25.4

6.4

GCC-501302

90˚off-axis parabolic mirror

50.8

101.6

101.6

50.8

57.2

28.5

6.4

GCC-501303

90˚off-axis parabolic mirror

76.2

152.4

152.4

50.8

57.2

29.7

6.4

GCC-501304

90˚off-axis parabolic mirror

12.7

25.4

25.4

25.4

38.1

15.9

6.4

GCC-501305

90˚off-axis parabolic mirror

25.4

50.8

50.8

25.4

38.1

17.45

6.4

GCC-501306

90˚off-axis parabolic mirror

38.1

76.2

76.2

25.4

38.1

18.05

6.4

GCC-501307

90˚off-axis parabolic mirror

50.8

101.6

101.6

25.4

38.1

18.3

6.4

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