Aluminized Outer Reflection BK7 Optical Glass 90 Degree Rectangular
Prism Right Angle Prism
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.
