Description
Black Painted Corner Cube Prism for Fundus Imaging
Our black painted corner cube prism is a precision optical component designed for fundus imaging systems and other ophthalmic imaging equipment. The prism combines precision corner cube geometry with silver reflective coatings, protective black paint, and an anti-reflection coating on the entrance surface.
The optical design provides controlled beam reflection and stable angular performance, making the prism suitable for compact imaging systems where optical path management and stray-light control are important.
Key Features
- Precision corner cube prism geometry for accurate beam reflection
- Three reflective surfaces with silver coating and protective black paint
- Anti-reflection (AR) coating on the entrance surface
- Beam deviation below 10 arcsec
- Surface quality of 40/20
- Surface flatness of 5(0.3) at 632.8 nm
- Dimensional tolerance of ±0.1 mm
- Available in H-K9L, N-BK7, JGS1, and other optical materials
- Custom dimensions and optical coatings available
Optical Design and Coatings
The black painted corner cube prism uses three silver-coated reflective surfaces to provide high reflectivity across the specified wavelength range. The reflective surfaces are additionally protected with black paint to improve durability and help control unwanted reflections within the optical assembly.
The entrance surface can be treated with an AR coating to reduce surface reflection and improve light transmission. For the current design, the AR coating specification is Ravg <0.5% from 650–1050 nm at 0° AOI, while the silver-coated reflective surfaces provide Rabs >95% from 650–1050 nm.
Applications in Fundus Imaging
This corner cube prism for fundus imaging is designed for integration into ophthalmic imaging systems where compact optical components are required to redirect light within the instrument.
Typical applications include:
- Fundus imaging systems
- Ophthalmic diagnostic instruments
- Retinal imaging equipment
- Medical imaging systems
- Optical modules for clinical instruments
- Research equipment for ocular imaging
Its compact optical geometry can help system designers manage beam paths within confined instrument spaces while maintaining the required angular accuracy.
Technical Specifications
| Parameter | Specification |
|---|---|
| Substrate | H-K9L / N-BK7 / JGS1 or other material |
| Dimensional Tolerance | ±0.1 mm |
| Surface Flatness | 5(0.3) @ 632.8 nm |
| Surface Quality | 40/20 |
| Chips | 90% |
| Beam Deviation | <10 arcsec |
| AR Coating | Ravg <0.5% @ 650–1050 nm, AOI=0° |
| Silver Coating | Rabs >95% @ 650–1050 nm |
| Reflective Surfaces | Black Painted |
Custom Optical Prism Manufacturing
Jiujon Optics manufactures custom optical prisms for medical imaging, machine vision, surveying, laser systems, and other precision optical applications. Depending on the project requirements, we can customize the substrate material, dimensions, surface quality, coatings, and optical specifications.
For applications requiring a specific optical path or mechanical envelope, our engineering team can work from customer drawings, optical specifications, samples, or application requirements.
If you are developing a fundus imaging system or need a black painted corner cube prism with customized optical performance, contact Jiujon Optics for a technical evaluation and quotation.
