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The design of the Aluminized Outer Reflection BK7 prism is optimized for systems where internal light absorption must be eliminated. Unlike standard prisms that rely on total internal reflection (TIR), this Right Angle Prism utilizes an Aluminized Outer Reflection coating to reflect light directly from the first surface it encounters. This is particularly beneficial for the Optical Glass 90 Degree Rectangular Prism in high-vibration environments, as the mechanical stability of the BK7 substrate is superior to thin-film mirrors. Furthermore, the Rectangular Prism geometry allows for easy mounting and integration into compact optical housings. Whether you are constructing a complex beam splitter or a simple path folder, the Aluminized Outer Reflection BK7 ensures that your Optical Glass 90 Degree path remains pristine and aberration-free.
Technical Specifications
Feature
Specifications for Aluminized Outer Reflection BK7
Operational Benefit
Material Substrate
Optical Grade BK7 Glass
High homogeneity for the 90 Degree Prism
Reflection Type
Aluminized Outer Reflection
First-surface reflection for the Rectangular Prism
Angle Tolerance
< 3 arc minutes to < 30 arc seconds
High-fidelity steering for the Right Angle Prism
Surface Quality
40-20 to 20-10 Scratch-Dig
Low scatter in the Optical Glass 90 Degree
Coating Type
Protected Aluminum (R > 85%)
Durable Aluminized Outer Reflection surface
Geometry
Rectangular Prism / Right Angle
Simplified mounting for the Optical Glass
Clear Aperture
> 90% of face area
Maximum field of view for the Right Angle Prism
Surface Flatness
λ/4 @ 633nm
Pristine wavefront for the Aluminized Outer Reflection BK7
Detailed Specifications
Parameter
Specifications
Materials
BK7 or other optical glass, quartz, sapphire, Ge, Si, ZnSe, CaF2 etc
Length
3~100mm
Width
3~100mm
Height
3~100mm
Length tolerance
+/-0.01mm
Width tolerance
+/-0.01mm
Height tolerance
+/-0.01mm
Angle tolerance
3"~2'
Irregularity
ΔN=0.1~0.5
Surface accuracy
N=1~3
Surface quality
10/5~60/40
Coating
Upon request
Application area
Imaging, Lighting, Laser etc
Primary Application Areas
Laser Beam Steering: Using the Right Angle Prism to fold high-power beams in industrial CNC cutting heads
Tactical Sighting Systems: Implementing the Aluminized Outer Reflection BK7 in periscopic sights for vehicles
Spectroscopy Calibration: Utilizing the Optical Glass 90 Degree Rectangular Prism for precise light path referencing in lab instruments
Surveying Equipment: Integrating the Aluminized Outer Reflection prism in total stations and laser levels for long-range accuracy
Expert Product FAQ
Q1: Why choose an Aluminized Outer Reflection BK7 over a standard TIR prism?
Answer: The Aluminized Outer Reflection BK7 is preferred when you need a "front-surface" effect. Because it uses Outer Reflection, the light never enters the glass, which eliminates chromatic dispersion. This makes the Optical Glass 90 Degree Rectangular Prism more effective for broadband light sources.
Q2: How durable is the coating on the Aluminized Outer Reflection BK7?
Answer: Our Right Angle Prism features a protected aluminum layer. This means the Aluminized Outer Reflection surface is capped with a thin dielectric layer (like SiO₂), which protects the metal from oxidation and minor scratches during handling of the Optical Glass 90 Degree unit.
Q3: Can the Rectangular Prism be customized for specific wavelengths?
Answer: Absolutely. While the Aluminized Outer Reflection BK7 is great for general use, we can modify the Outer Reflection coating to silver or gold if your Optical Glass 90 Degree application requires higher reflectivity in the infrared spectrum.
Q4: What is the benefit of the BK7 material in an Outer Reflection prism?
Answer: Even though the light doesn't enter the glass in Outer Reflection, the BK7 substrate is vital because it is extremely stable. This ensures the Right Angle Prism angles do not warp, maintaining the Optical Glass 90 Degree precision over the product's lifetime.
Q5: How should I clean the Aluminized Outer Reflection surface?
Answer: You should treat the Aluminized Outer Reflection BK7 with care. Use an air duster to remove loose particles from the Optical Glass 90 Degree face, then gently wipe with a lint-free tissue and reagent-grade alcohol. Avoid excessive pressure on the Rectangular Prism reflective face.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2009
Total Annual:
8000000-10000000
Employee Number:
45~100
Ecer Certification：
Verified Supplier
1. We possess comprehensive capabilities in design, production and sales, providing customers with one-stop convenient procurement services and saving a great deal of time and cost for both new and existing projects.
2. We have tens of thousands of optical molds and samples, offering customers low-... 1. We possess comprehensive capabilities in design, production and sales, providing customers with one-stop convenient procurement services and saving a great deal of time and cost for both new and existing projects.
2. We have tens of thousands of optical molds and samples, offering customers low-...
