If you want to reduce visible light levels in a room without completely blocking sunlight with curtains or shades, there are several alternatives you can consider:
Sheer or Translucent Curtains: Instead of using heavy, opaque curtains, you can opt for sheer or translucent curtains. These allow light to filter through while still providing some level of privacy and reducing the intensity of sunlight. They soften the incoming light and create a diffused lighting effect.
Window Films: Window films are available in various tints and designs. They can be applied to windows to reduce the amount of incoming light while still allowing a certain degree of visibility. These films can provide shade and also offer additional benefits like UV protection and privacy.
Blinds or Shades: Instead of completely blocking out the light with solid blinds or shades, you can choose adjustable blinds or shades that allow you to control the amount of light entering the room. By tilting the slats or adjusting the position of the shades, you can achieve a desired level of light reduction without completely darkening the room.
Reflective or Solar Control Window Coatings: Special window coatings can be applied to the glass that reflect a portion of the sunlight and reduce glare and heat. These coatings are designed to block specific wavelengths of light while maintaining visibility to the outside. They can help in reducing the intensity of visible light without compromising the view.
Window Screens: Installing window screens can help reduce the amount of direct sunlight entering the room while still allowing air circulation and maintaining an outdoor view. Window screens come in different materials and densities, providing varying levels of light reduction.
Light Diffusers: Placing light diffusers or sheer fabrics in strategic locations within the room can help scatter and soften the incoming light. This can be achieved by using materials like frosted glass, textured panels, or light-diffusing films on windows or skylights.
Remember that the effectiveness of these methods may vary based on the intensity of sunlight, the orientation of windows, and the specific requirements of the room. It's a good idea to experiment with different solutions or consult with a professional to find the most suitable option for your specific needs.