First Surface Mirror
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2019
Description
First Surface Mirrors (FSM), also known as front surface mirrors, are meticulously crafted with the reflective surface applied directly to the front of the glass substrate. This unique design ensures that light reflects from the very first surface it encounters, thereby minimizing any distortion or “ghosting” effects that can occur when light passes through glass before reflecting. This makes FSM an essential component in precision optical applications where clarity and accuracy are paramount.
Our First Surface Mirrors are coated with a high-quality aluminum layer, further enhanced with a protective overcoat of either silicon monoxide (SiO) or magnesium fluoride (MgF2). This multilayer coating spans a spectrum of approximately 300nm, accommodating a 0-45 degree angle of incidence. Such specifications ensure that our mirrors deliver superior reflectivity and performance across a wide range of optical applications.
These mirrors are particularly indispensable in fields such as telescopes, periscopes, laser optics, and military & commercial simulators. They are also increasingly utilized in modern technologies like 3D scanners, where precise light manipulation is critical. At Sherlan Optics, we pride ourselves on offering custom sizes, with dimensions reaching up to nearly 1000mm, to meet the diverse needs of our clients. For tailored solutions, we invite you to contact us directly.
First Surface Mirror
Specifications |
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|---|---|
| Reflective Coating: | Protected Aluminum |
| Substrate: | BK7 |
| Average Reflectance: | 94 % |
| Wavelength Range: | 400 – 700 nm |
| Surface Flatness: | Custom |
| Surface Quality: | 60-40 scratch-dig |
| Diameter: | 25.4 mm |
| Thickness: | 1.1 mm |
| Shape: | Round |
Features
- High-Quality Reflection: First Surface Mirrors (FSM) feature a reflective surface applied directly to the front surface of the glass substrate, minimizing distortion and "ghosting" effects.
- Advanced Coating: Mirrors are coated with aluminum and over-coated with either silicon monoxide (SiO) or magnesium fluoride (MgF2) for enhanced durability and performance.
- Wide Spectrum Coverage: Multilayer coating spans a spectrum of approximately 300 nm for a 0-45 degree angle of incidence, ensuring optimal reflection across various applications.
- Customizable Sizes: Sherlan Optics offers nearly any size up to 1000mm, with custom dimensions available upon request.
Applications
- Telescopes: Used in telescopes to minimize distortion and enhance image clarity by reducing ghosting effects.
- Periscopes: Essential in periscopes for clear and accurate reflection without secondary refraction.
- Laser Optics: Ideal for laser optics where precision and minimal distortion are crucial.
- Military & Commercial Simulators: Utilized in simulators to provide realistic and undistorted visual experiences.
- Cameras: Applied in camera systems to improve image quality by reducing reflective distortions.
- 3D Scanners: Recently adopted in 3D scanning technology for precise light manipulation and accuracy.
Frequently Asked Questions
First Surface Mirrors can reduce the chance of distortion and “ghosting” from secondary refraction as light passes through the glass to the reflective surface and then back through the glass as in second or rear surface mirrors. They are essential for certain applications where light is being manipulated and distortion must be minimized.
The surface flatness is 4-6λ, substrate material is float glass, surface quality is 60-40, dimension is 3-1400mm for 4-6λ, thickness is 0.55mm, 1mm, 2mm, 3mm, 4mm, 5mm, coating is Enhanced Aluminum Ravg>94%@400-680nm, coating type is metal, and edges are ground, 0.45mm*45degree.
Typical uses of First Surface Mirrors include telescopes, periscopes, laser optics, military & commercial simulators, cameras and most recently 3D scanners.
A First Surface Mirror (FSM) is a mirror where the reflective surface is applied to the front surface of the glass substrate.
Sherlan Optics can offer the large size nearly to be 1000mm. For more information, please contact us to custom your size.