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SPECIFICATIONS: 25mm LASER MIRROR SERIES
| Diameter: 25.4 |
+0.0 |
mm, fine ground |
| -.25 |
Thickness: 6.00 ± 0.25mm
Flatness: l/20 at 6328Å over 23mm
Regularity: l/40 at 6328Å
Cosmetic Quality: Reticle grade plus exceeds 15-5, scratch-dig
Bevel: 0.5mm at 45°, both edges
Clear Aperture: 23mm
Glass Type: Schott Zerodur® Class l
Expansion Coefficient: 5x10-7cm/°C, from 50°C to 150°C
Coating: Hard multilayer dielectric reflectivity > 99% at design wavelength for both s and p polarizations.
Coatings exceed MIL-M-13508C with low scatter and absorption losses.
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Note:
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The coating on 050-MZP-001 through 050-MZP-004 is LMZ 01.
The coating on 050-MZP-005 through 050-MZP-016 is LMZ 10.
The coating on 050-MZP-017 through 050-MZP-020 is LMZ 20. |
| For detailed coating specifications and transmission curves, please see the coating section. |
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SPECIFICATIONS: 37mm, 50mm AND 75mm
LASER MIRROR SERIES
| Diameter: |
37.5 |
+0.0 |
mm, fine ground |
| -0.25 |
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50.8 |
+0.0 |
mm, fine ground |
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-0.25 |
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76.2 |
+0.0 |
mm, fine ground |
|
-0.25 |
| Thickness: |
12.0 |
+0.0 |
mm, for 37mm diameter |
| -0.25 |
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12.0 |
+0.0 |
mm, for 50mm diameter |
|
-0.25 |
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15.0 |
+0.0 |
mm, for 75mm diameter |
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-0.25 |
Flatness: l/20 at 6328Å over 90% of diameter
Regularity: l/40 at 6328Å
Cosmetic Quality: Reticle grade plus exceeds 15-5, scratch-dig
Bevel: 0.5mm maximum at 45°, both edges
Clear Aperture: 35mm, 48mm and 74mm diameter
Glass Type: Schott Zerodur® Class l
Expansion Coefficient: 5x10-7cm/°C, from 50°C to 150°C
Coating: Hard multilayer dielectric reflectivity > 99% at design wavelength for both s and p polarizations.
Coatings exceed MIL-M-13508C with low scatter and absorption losses.
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SPECIFICATIONS: LASER MIRROR SERIES AT CUSTOM WAVELENGTHS
| Diameter: |
+0.0 |
mm, fine ground |
| -0.25 |
Thickness: ±0.25mm
Flatness: l/20 at 6328Å over 90% of diameter
Regularity: l/40
Cosmetic Quality: Reticle grade plus exceeds 15-5, scratch-dig
Bevel: 0.5mm at 45°, both edges
Clear Aperture: 23mm, 35mm, 48mm, 74mm, 100mm and 150mm
Glass Type: Schott Zerodur® Class 1
Expansion Coefficient: 5x10-7cm/°C, from 50°C to 150°C
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COATING SPECIFICATION:
The above substrates can be coated with a large range of coatings. We list here the 3 basic laser coatings used on the 050 and 051 series and the manner in which they are specified.
| Coating: |
LMZ 01-00-000
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Angle
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Center wavelength
in microns |
This coating is a general ultraviolet multilayer dielectric mirror with R > 99.0% from 2600Å. The angle of incidence is 0°.
COATING SPECIFICATIONS
(SERIES 052-MZP-xxx)
The substrates listed in the table above can be coated with a large range of coatings. Here we will list the three basic laser coatings used on the 050 and 051 series and the manner in which they are specified.
| Coating: |
LMZ 01-00-000
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Angle
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Center wavelength
in microns |
This coating is a general UV multilayer dielectric mirror with R > 99.0% from 2600Å to 4000Å. The angle of incidence can be specified from 0° to 70°. The temperature range is 0° to 160°F. As an example, a maximum reflector for a cadmium laser at 3250Å at 30° incidence on a 76mm substrate is specified by 050-MZP-004 Coated: LMZ 01-30-325.
| Coating: |
LMZ 10-00-000
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Angle
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Center wavelength
in microns |
This coating is a visible multilayer dielectric mirror with R > 99% from 4000Å to 7000Å. The angle of incidence can be specified to 70°. Temperature range is -70°F to +250°F.
COATING: LMZ 20-00-000
This coating is a near infrared multilayer dielectric mirror with R > 99% from 7000Å to 2.5µ. The angle of incidence can be specified to 70°. The temperature range is from -70°F to +250°F.
For detailed specifications and typical transmission charts, see the coating section of this catalog.
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STANDARD MIRROR COATINGS
Most of the general flat mirrors are coated for maximum reflection using a variety of metals usually overcoated with dielectric layers in order to enhance durability or increase reflection in a given spectral interval.
A large variety of coatings are available from our standard coating list. The most widely used coatings are briefly described. A full description of each of these coatings can be found in the coating section.
The following coatings are overcoated with a protective layer of a transparent dielectric material. This overcoating provides a surface rugged enough to permit optical cleaning and also protects the metal coating from the effects of tarnish and oxidation.
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| A. Aluminum Mirrors (GMP 01-00-.550)
Aluminum is the most commonly used metal for the UV, visible and near-infrared parts of the spectrum. For use in the visible spectrum, GMP 01-00-.550 is used and is overcoated with quartz.
For the UV spectrum, GMP 02-00-.300 consists of aluminum overcoated with magnesium fluoride for maximum reflectivity from 2000Å to 4000Å.
B. Enhanced Aluminum (GMP 06-00-.550)
The reflectivity of aluminum can be increased through a limited portion of the spectrum. GMP 06-00-.550 gives a visible enhancement of 96% over a spectral region from 4500Å to 7200Å but significantly less than GMP 01-00-.550 over the rest of the spectrum.
GMP 08-00-.300 is the UV enhanced version of the GMP 06-00-.550 and produces a UV reflection of 96% over the region from 2000Å to 4000Å.
C. Gold Mirrors (GMP 10-00-5.00)
Protected gold’s reflectivity is greater than 98% from 1.0µ to 9.0µ in the infrared. The overcoat is put on the gold in order to clean the mirrors by careful optical methods.
Note: Any of the 53, 54 or 55 series general flat mirrors may be coated with standard mirror coatings by specifying the substrate followed by the coating product number. For example, a 100mm square Pyrex® mirror, l/4 flat coated with protected gold is ordered as 53 MPU-017 coated with GMP 10-00-5.00.
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SPECIFICATIONS: OPTICAL FLATS
Flatness: l/20, reference
Regularity: l/40
Cosmetic Quality: 40-20, scratch-dig
Thickness: Nominal, thin side ±0.2mm
Bevel: Reference, 0.2mm at 45°
Rear, 1.0mm at 45°
Rear Surface: l/4 flat
Material: Synthetic fused quartz Optical Grade
Coating: Reference, hard dielectric R > 25%
Rear, broadband antireflection R < 0.5% from 4500Å to 7500Å
Wedge: Front to rear surface, 3° |
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| Republic Lens Company, Inc. manufacturers of many types of flats, mirrors and windows. Please contact our applications Engineers for details. |
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