Aluminium extrusion linear lighting has become increasingly popular in recent years due to its versatility and sleek design. However, choosing the right diffuser can have a significant impact on the amount and quality of light emitted by the fixture. In this article, we'll discuss the importance of transmittance and reflectance in aluminium extrusion linear lighting and the various diffusers available.
Transmittance refers to the percentage of light that passes through the diffuser, while reflectance refers to the amount of light that is reflected off the diffuser. Different diffusers have varying levels of transmittance and reflectance, which can affect the overall lighting performance.
Here is a general range of typical transmittance and reflectance ratings for each type of diffuser:
- Frosted diffusers: 70-90% transmittance, 5-15% reflectance
- Opal diffusers: 60-80% transmittance, 10-20% reflectance
- Semi-clear diffusers: 50-70% transmittance, 20-30% reflectance
- Clear diffusers: 20-40% transmittance, 60-80% reflectance
3 Different types of diffusers
When choosing a diffuser, consider factors such as transmittance and reflectance ratings, as well as the specific lighting needs of your space. With the right diffuser, you can achieve the perfect balance of functionality and aesthetics in your lighting design.
Frosted diffusers
Frosted diffusers, for example, have a high level of transmittance and a low level of reflectance. On average, frosted diffusers have a transmittance rating of around 70%, which means that 30% of the light emitted from the fixture is lost due to absorption or reflection. This makes them ideal for applications where a soft and diffused light is desired, such as in offices, retail spaces, and residential settings. Opal diffusers have a similar effect but with less transparency, offering a more diffused, yet slightly less bright illumination.
Semi-clear diffusers
Semi-clear diffusers are designed to balance the need for both diffused light and clear visibility. They are made from a material that is partially transparent, allowing some light to pass through while still providing a diffused effect. Semi-clear diffusers typically have a transmittance rating of around 70-80%. Semi-clear diffusers have a moderate level of transmittance and reflectance, making them a versatile choice for a wide range of applications.
Clear diffusers
Clear diffusers, as the name suggests, allow the most light to pass through, typically around 90% or higher. However, clear diffusers do not provide the same level of glare reduction as frosted or semi-clear diffusers. Clear diffusers are typically used in situations where maximum light output is desired, such as in commercial or industrial settings or in areas where high visibility is required.
It is important for architects and designers to consider the level of transmittance and reflectance when selecting a diffuser for aluminium extrusion linear lighting. By choosing the right diffuser, they can achieve the desired lighting effect while also maximizing the energy efficiency of the fixture.
At BoscoLighting, we specialize in providing high-quality aluminium extrusion linear lighting solutions that are tailored to meet the unique needs of each project. Our team of experienced lighting professionals can work with architects and designers to determine the optimal transmittance and reflectance values for their space.
If you're an architect or designer looking for the best lighting solutions for your project, we invite you to get in touch with us today. Our team is ready to help you create a space that is both beautiful and functional.
