Description
Aluminum Coating Mirror for Slit Lamp
Our aluminum coated mirror for slit lamp is a precision optical mirror designed for ophthalmic instruments and slit lamp systems that require stable reflection, accurate optical alignment, and consistent imaging performance.
The mirror is manufactured from optical glass and finished with a protective aluminum coating using vacuum deposition. The coating provides high reflectivity across the visible wavelength range of 430–670 nm, making this optical mirror suitable for applications where controlled visible-light reflection is required.
The substrate is B270® optical glass, which offers good optical clarity and stable material properties. SCHOTT provides B270® in a wide range of thicknesses and formats for optical applications.
Key Features of the Aluminum Coated Mirror
- B270® optical glass substrate
- Protective aluminum coating for visible-light reflection
- Reflectivity of R>90% at 430–670 nm
- Designed for 45° angle of incidence (AOI)
- Surface quality of 60/40 or better
- Surface flatness of 3(1) @ 632.8 nm
- Dimensional tolerance of ±0.1 mm
- Thickness tolerance of ±0.1 mm
- Parallelism of <3 arcmin
- Clear aperture of 90%
- Ground and blackened edges and back surface
- Suitable for customized dimensions and optical specifications
Optical Mirror for Slit Lamp Systems
A mirror used in a slit lamp optical system needs to maintain stable reflection while meeting the mechanical and dimensional requirements of the instrument. Small variations in thickness, flatness, parallelism, or coating performance can affect optical alignment and the consistency of the imaging path.
This aluminum coating mirror for slit lamp is manufactured with controlled dimensional and surface specifications to support stable integration into ophthalmic optical assemblies.
The protective aluminum coating is specified for R>90% at 430–670 nm with an AOI of 45°, providing high visible-light reflection for optical paths operating within this wavelength range.
The mirror can be supplied according to customer drawings or optical specifications, including customized dimensions, thickness, tolerances, edge treatment, and coating requirements.
Applications
The aluminum coating mirror for slit lamp can be used in optical assemblies for:
- Slit lamp biomicroscopes
- Ophthalmic examination instruments
- Optical imaging systems
- Corneal and anterior-segment imaging systems
- Medical optical instruments
- Visible-light optical paths
- Customized ophthalmic diagnostic equipment
For slit lamp applications, the mirror can be integrated into the optical path where controlled reflection is required for illumination or imaging.
Precision Manufacturing and Quality Control
Jiujon Optics manufactures precision optical mirrors through controlled processes including glass preparation, grinding and polishing, cleaning, coating, edge treatment, and optical inspection.
For this type of optical mirror, key inspection parameters can include dimensional tolerance, surface flatness, surface quality, parallelism, clear aperture, and coating performance.
The production and inspection equipment includes spectrophotometers and interferometric measurement equipment for optical performance verification.
This manufacturing approach allows Jiujon Optics to support both standard optical mirror requirements and customized components for OEM ophthalmic equipment manufacturers.
Aluminum Coating Performance
Aluminum is widely used as a reflective coating for optical mirrors because it provides effective reflection across the visible spectrum and can be combined with a protective overcoat to improve environmental durability.
For this product, the specified coating performance is:
Protective Aluminum Coating: R>90% @ 430–670 nm, AOI=45°
The coating specification can be adapted according to the optical design and operating wavelength requirements of the customer’s instrument.
If your slit lamp system requires a different wavelength range, angle of incidence, reflectivity target, substrate material, or coating structure, Jiujon Optics can evaluate the optical requirements and provide a customized solution.
Specifications
| Parameter | Specification |
|---|---|
| Substrate | B270® |
| Dimensional Tolerance | ±0.1 mm |
| Thickness Tolerance | ±0.1 mm |
| Surface Flatness | 3(1) @ 632.8 nm |
| Surface Quality | 60/40 or better |
| Edges | Ground and blackened, 0.3 mm max. full-width bevel |
| Back Surface | Ground and blackened |
| Clear Aperture | 90% |
| Parallelism | <3 arcmin |
| Coating | Protective Aluminum Coating |
| Reflectivity | R>90% @ 430–670 nm |
| Angle of Incidence | 45° |
Customized Optical Mirrors for Ophthalmic Instruments
Optical systems used in ophthalmic instruments often require components manufactured to specific mechanical and optical drawings rather than standard catalog dimensions.
Jiujon Optics supports customized slit lamp mirrors according to customer drawings, including special dimensions, thicknesses, tolerances, edge configurations, surface requirements, and coating specifications.
For OEM projects, customers can provide the required optical parameters, mechanical drawing, wavelength range, angle of incidence, reflectivity target, and annual quantity. Our engineering team can then review the requirements and recommend a suitable substrate, polishing specification, and coating design.
Related Optical Components
Jiujon Optics also manufactures customized optical mirrors, optical windows, optical filters, lenses, prisms, and reticles for medical, machine vision, surveying, laser, and other precision optical applications.
If you are sourcing an aluminum coated mirror for slit lamp applications, please send us your drawing or optical specification. We can evaluate the requirements and provide a quotation for prototype and volume production.
