Advantages of Femtosecond Laser Technology for Precision Processing of Shaped Parts Explained
In today's high-end manufacturing sector, there is a growing demand for the ...
MONO | 2024-10
INDUSTRY
An objective diaphragm is an important component in a microscope, light microscope or other optical instrument that controls the amount and path of the light beam entering the optical system. It optimises the clarity, contrast and resolution of the image by adjusting the size and shape of the beam.
Functions of the objective lens diaphragm:
1. Controls the number of beams
By adjusting the opening size of the diaphragm, the number of beams entering the optical system can be controlled, thus affecting the brightness and contrast of the image.
2. Optimise image quality
Appropriate diaphragm settings can reduce the impact of scattered light and stray light, and improve the clarity and resolution of the image.
3. Adjust depth of field
The opening size of the diaphragm directly affects the depth of field. A smaller diaphragm opening increases the depth of field and is suitable for observing thick samples; a larger diaphragm opening decreases the depth of field and is suitable for observing thin samples or high-resolution imaging.
4. Reducing spherical aberration and chromatic aberration
By adjusting the diaphragm appropriately, optical aberrations such as spherical aberration and chromatic aberration can be reduced to improve the imaging quality.
Monochrome Technology femtosecond laser technology can perform a variety of processing operations such as punching, cutting and etching on the objective lens diaphragm.
1. Perforation
Femtosecond lasers can punch precise, small holes in the objective lens diaphragm that can be used to control the size and shape of the beam.
- High precision: Femtosecond lasers can achieve sub-micron aperture accuracy, making them ideal for manufacturing precision optical components.
- Low thermal impact: Due to the extremely short pulse duration, the material is less affected by heat, reducing thermal damage and ensuring the optical performance of the diaphragm.
- Clean edges: The edges of the laser perforation are very smooth and burr-free, ensuring that the beam passes through undisturbed.
2. Cutting
Femtosecond laser can be used to cut the objective lens diaphragm to obtain the desired shape and size.
- High-precision cutting: Femtosecond lasers enable high-precision cutting of complex shapes, which is ideal for customised optics.
- Non-contact processing: Stress and distortion that can be caused by conventional mechanical cutting are avoided.
- Applicable to a wide range of materials: Femtosecond laser can cut a wide range of materials such as metal, glass, ceramics and polymers with high adaptability.
3. Etching
Femtosecond laser can be used to etch on the surface of the objective lens diaphragm to create complex microstructures or patterns.
- High resolution: Femtosecond laser etching can achieve nanometre resolution, which is suitable for creating precision microstructures.
- Customised Patterns: Specific patterns or markings can be etched on the surface of the diaphragm according to design requirements.
- Low-damage processing: The small heat-affected zone during femtosecond laser etching avoids damage to the material surface and ensures optical performance.
Comprehensive Advantages of Monochrome Technology Femtosecond Laser Processing
1. Extremely high processing precision: Femtosecond laser can achieve micron or even nanometer processing precision, which is suitable for the manufacture of optical components with high requirements.
2. low thermal impact: femtosecond laser pulse time is extremely short, reducing the heat-affected zone and avoiding thermal damage to the material.
3. No mechanical stress: laser processing is non-contact, does not exert mechanical stress on the material, avoiding deformation and damage caused by mechanical processing.
4. Multi-material adaptability: Femtosecond laser can process a wide range of materials, including metals, glass, ceramics and polymers, to meet the manufacturing needs of different optical components.
Application Examples
1. Microscope objective lens diaphragm: Femtosecond laser technology can punch and cut holes in microscope objective lens diaphragm to improve the imaging quality and resolution of the microscope.
2. optical instruments: in other optical instruments, femtosecond laser technology can be used to manufacture high-precision diaphragm components to optimise the performance of optical systems.
3. scientific research applications: femtosecond laser processing technology is widely used in scientific research to fabricate a variety of complex microstructures and nanostructures.
Monochromatic technology femtosecond laser technology is suitable for a wide range of machining operations such as punching, cutting and etching on objective lens diaphragms due to its high precision, low thermal impact and absence of mechanical stress. This technology provides an ideal solution for high quality manufacturing of optical components and is widely used in microscopy, optical instruments and scientific research.
