Product Case Studies

Aluminum plated off-axis parabolic reflector

• Product manual: Aluminum plated off-axis parabolic reflector mirror is a first surface reflector made of aluminum material, and its reflective surface is part of the mother parabolic surface. They can focus collimated beams or collimated diverging light sources without color difference, and their off-axis design can separate the focus from the optical path in space. Reflective design eliminates the phase delay and absorption loss introduced by transmissive optical elements, making it highly suitable for femtosecond pulse lasers.
• Category：Ultra smooth glass non spherical surface、metal reflector、glass molded lens、Levicorn spindle、ultra precision optical mold

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describe

Aluminum coated off-axis parabolic reflector is a high-performance optical component that combines the characteristics of off-axis parabolic mirrors with the high reflectivity of aluminum coating. This type of reflector is used in optical systems to precisely focus light and eliminate spherical aberration, while providing high reflectivity, especially in the visible and ultraviolet light bands. Aluminum plating treatment makes these mirrors very popular in various applications, including astronomical telescopes, laser systems, imaging equipment, and scientific research.

General parameters

Basic principles

Off Axis Parabolic MirrorBased on the geometric characteristics of parabolas, it is possible to focus light rays parallel to its axis of symmetry at a focal point, effectively eliminating spherical aberration. Off axis design means that the reflective surface does not directly contain the axis of symmetry of the original parabolic surface. This design provides greater flexibility, allowing light to be focused without being parallel to the mirror’s axis of symmetry, reducing blockages and obstructions in the optical system.

Aluminum plating treatment Apply a thin aluminum film on the surface of the reflector. Aluminum is a high reflectivity material, especially in the visible and ultraviolet light bands. This treatment not only improves the reflectivity, but also enhances the corrosion resistance and durability of the mirror surface.

manufacturing process

1. Shape processing:Using high-precision machining techniques such as computer numerical control (CNC) grinding and polishing to form precise shapes of off-axis paraboloids.
2. Coating: By using techniques such as physical vapor deposition (PVD), a thin aluminum film is uniformly coated on a precisely shaped mirror surface, and may be covered with a protective film to further improve durability and reflectivity.

application area

Aluminum coated off-axis parabolic reflectors have a wide range of applications in multiple fields:

• Astronomical telescope: used to focus starlight and other celestial radiation, especially in large ground-based and space telescopes.
• Laser system: Used for efficient reflection of laser beams in laser processing, laser communication, and scientific research.
• Imaging System: Used in high-end cameras, scanners, and microscopes to provide high-quality imaging.
• Scientific research: used for optical measurement and spectral analysis in physics, chemistry, and biology experiments.

advantage

• High reflectivity: Aluminum film provides excellent reflectivity, especially in the visible and ultraviolet light bands.
• Accurate focusing: effectively eliminates spherical aberration and achieves precise focusing of light.
• Durability: Aluminum film has good chemical and environmental resistance, suitable for use in harsh conditions.
• Design flexibility: Off axis design reduces optical system blockage and provides greater design freedom.

conclusion

Aluminum plated off-axis parabolic reflectors play an important role in modern optical systems due to their high performance and versatility, and are an indispensable part of many high-end optical systems.

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