What is a Rod Lens?
A rod lens is a cylindrical optical component with an elongated shape and a curved optical surface. Unlike conventional circular lenses, its optical geometry is designed to control light primarily along one direction. This makes rod lenses useful for compact optical systems requiring image transmission, light focusing, or optical path control.
How Does a Rod Lens Work?
A rod lens changes the direction of incoming light through its cylindrical optical surface. Depending on its dimensions and optical parameters, it can focus, expand, or relay light along a selected axis while maintaining the desired optical path.
Specifications of Rod Lens
| Material: | CaF2 |
| Surface: | Two ends surfaces polished |
| Diameter: | 30mm |
| Length: | 200mm |
Picture of CaF2 Rod Lens
Video of Rod Lens
Key Features of Glass Rod Lenses
- Cylindrical optical geometry
- One-dimensional light control
- Compact elongated structure
- Accurate optical surface processing
- Excellent light transmission
Applications
- Image relay systems
- Compact imaging equipment
- Light focusing assemblies
- Optical measurement instruments
- Precision optical modules
Why Choose Custom Rod Lens Manufacturing?
- Custom diameter and length
- Various optical glass materials
- Precision cylindrical surface processing
- Customized optical coatings
- High quality surface polishing
People Also Ask (FAQs)
What is another name for a rod lens?
Rod lenses are also commonly described as glass rod lenses or cylindrical rod lenses, depending on their optical structure and application.
Can glass rod lenses be customized?
Yes. Diameter, length, optical material, focal characteristics, surface quality, and coating can be customized according to technical requirements.
Customization Options
- Custom diameter
- Custom length
- Optical glass selection
- Focal length requirements
- Surface quality specifications
- Optical coating options












