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The working principle of a wedge-shaped prism is based on the law of refraction of light. When light enters another medium (such as glass) from one medium (such as air), its velocity changes, causing the light to change direction. This phenomenon is called refraction. The two inclined surfaces of a wedge-shaped prism cause light to undergo two refractions when passing through the prism, and the combined effect of these two refractions changes the direction of light propagation.
characteristic
- Direction adjustment：Wedge prisms can accurately change the direction of light propagation, and the angle of change depends on the refractive index and wedge angle of the prism.
- dispersion effect：Due to the different refractive indices of light of different colors, wedge-shaped prisms can be used to decompose light into its constituent colors, similar to the effect of a spectrometer.
- Compact and simple：The wedge-shaped prism has a simple structure and is easy to manufacture and integrate into various optical systems.
A wedge prism is a simple optical element composed of two inclined planes that are usually not parallel, forming a wedge shape. It is mainly used to change the direction of light propagation or decompose light into different colors. Wedge prisms have various designs and applications, and their angles and sizes can be customized according to needs.
application
- beam deflection：Wedge prisms are commonly used to fine tune the direction of light beams, such as in the calibration of optical instruments.
- optical isolation：By combining two opposite wedge-shaped prisms, an optical isolator can be manufactured to eliminate or reduce the impact of reflected light on the light source.
- Optical correction：In imaging systems, wedge-shaped prisms can be used to correct image offsets or distortions.
- Dispersion control：In spectroscopy and color analysis, wedge-shaped prisms are used to decompose light rays to study different colors of light.
advantage
- Simple and cost-effective, easy to manufacture and integrate.
- It can precisely control the deflection angle of the light beam.
- Suitable for wideband light sources.
disadvantage
- The dispersion effect may lead to a decrease in image quality, which needs to be compensated for through design or other optical components.
- In some applications, a combination of multiple wedge-shaped prisms may be required to achieve the desired effect, increasing the complexity of the system.
Wedge prism is a fundamental component in optical design, which has found applications in various optical systems due to its simplicity, flexibility, and cost-effectiveness. Wedge prisms play an important role in scientific research, industrial applications, and consumer electronics products.
| Conventional indicators for processing wedge-shaped prisms | |
| material | Optical glass, quartz glass |
| Product Category | WEDGE PRISM |
| Processing size (mm) | 10-100 |
| Diameter tolerance (mm) | ±0.03 |
| Surface smoothness (American standard) | 40-20 |
| Surface Accuracy | λ/4 @ 632.8nm or higher |
| angle tolerance | <3 ‘or higher |
| Optical aperture | ＞90% |
| Wedge rotation angle | 1-10° |
| chamfer | Protective chamfer |
| coating film | Customize according to demand |
