Description
Precision Optical Slit – Chrome on Glass
Precision optical slit is a chrome-on-glass optical component designed for accurate control of light transmission through a narrow, precisely defined aperture. Manufactured on optical glass substrates such as B270, this slit plate combines controlled slit dimensions, optical surface quality, and an opaque chrome coating for applications where consistent light shaping and aperture definition are required.
The chrome-on-glass structure provides a precise and durable way to define the slit opening while maintaining the optical performance of the surrounding glass substrate. Depending on the application, slit widths of 0.05 mm and 0.1 mm are available. This precision optical slit can be used in spectroscopy, laser systems, optical measurement equipment, imaging systems, and other instruments requiring controlled light passage.
Key Features of the Precision Optical Slit
- Precision slit widths of 0.05 mm and 0.1 mm
- B270 optical glass substrate for stable optical performance
- High optical density opaque chrome coating
- Surface quality of 40/20
- Surface flatness of 3(1) @ 632.8 nm
- Thickness tolerance of ±0.05 mm
- Dimensional tolerance of -0.1 mm
- Clear aperture up to 90%
- Ground edges with a maximum 0.3 mm full-width bevel
- Suitable for custom optical and instrument applications
Chrome-on-Glass Optical Slit for Controlled Light
The chrome coating is applied to the glass surface to define the opaque areas around the slit opening. This chrome-on-glass structure allows the optical slit to provide a clearly defined aperture while limiting unwanted light transmission through the coated areas.
For optical instruments, precise aperture geometry is important because variations in slit width or edge definition can affect the amount and distribution of transmitted light. A precision optical slit can therefore be used to establish a repeatable optical opening for measurement, imaging, spectroscopy, and other light-control applications.
The glass substrate provides a stable platform for precision surface processing and chrome patterning. Jiujon Optics can manufacture optical slit plates according to application-specific dimensions and technical requirements.
Applications of Precision Optical Slits
Precision optical slit components can be integrated into a variety of optical and photonic systems, including:
- Spectrometers and spectroscopy equipment
- Optical analysis instruments
- Laser measurement systems
- Imaging and machine vision equipment
- Optical testing instruments
- Light-control assemblies
- Laboratory optical instruments
- Custom photonics and precision measurement systems
For systems requiring a specific slit width, substrate size, edge configuration, or coating specification, the optical slit can be manufactured according to the customer’s drawing and application requirements.
Precision Optical Slit Specifications
| Specification | Value |
|---|---|
| Substrate | B270 |
| Dimensional Tolerance | +0/-0.1 mm |
| Thickness Tolerance | ±0.05 mm |
| Surface Flatness | 3(1) @ 632.8 nm |
| Surface Quality | 40/20 |
| Slit Width | 0.05 mm / 0.1 mm |
| Edges | Ground, 0.3 mm max. full-width bevel |
| Clear Aperture | 90% |
| Parallelism | <45″ |
| Coating | High optical density opaque chrome |
| Transmission | <0.01% @ visible wavelength |
Custom Chrome-on-Glass Optical Slit Manufacturing
Jiujon Optics manufactures precision optical components for industrial and scientific applications. Our optical slit production capabilities include glass processing, precision surface finishing, chrome coating, cleaning, inspection, and dimensional control.
The precision optical slit can be produced according to customer drawings and application requirements, including substrate dimensions, slit width, coating pattern, edge treatment, and other optical specifications.
Our production and inspection capabilities support the manufacturing of precision optical components for demanding optical systems. Each optical slit can be evaluated according to the required dimensional, surface quality, coating, and optical specifications.
Request a Custom Precision Optical Slit
If you are looking for a precision optical slit, chrome-on-glass slit plate, or custom optical aperture, Jiujon Optics can provide solutions based on your required dimensions, substrate, slit width, coating, and optical specifications.
Please send us your drawing or technical requirements for evaluation and quotation.
