Glassprism

Blackout curtains fully block the light entering a room when closed, allowing you to get needed rest and relaxation. Light blocking curtains are especially popular for bedrooms and living rooms where sunlight and artificial light can disturb restful sleep or cause a glare. These thick curtains provide the highest level of light blocking in IKEA’s curtain collection.

Blackout curtains block light from shining through to completely darken your room at any time of day. Since any light can prevent truly restful sleep, be sure your little ones also get the peaceful naps and sleep they need to be their best by including thick curtains in nurseries and kid’s bedrooms, playrooms and any room they may doze off. Simply close the curtains once you’ve noticed their head starting to nod!

Window treatments that block out light can actually make your home more energy-efficient by keeping out drafts in the winter and heat in the summer, thereby cutting on heat transfer through your windows.

Dispersion oflightthroughprism

While it might seem that thick curtains would make a room retain heat—much like a thick sweater will have you sweating in the summer—the same rule doesn’t apply to what our windows wear! Light blocking curtains can play an important role in keeping rooms cooler in the summer and warmer in the winter.

Browse our wide selection of light blocking curtains in colors and patterns to suit your interior design style, with a variety of common sizes to accommodate small, medium and large windows.

Light exposure can affect the production of melatonin, a hormone that is key to promoting and maintaining a good night’s sleep. Whether you work second or third shift, are a bit of a night owl or just want to get in a good nap in the middle of the day, blackout drapes ensure the sunshine outside doesn’t make its way inside your curtained windows.

Prism and lightexperiment

A rainbow is formed in the sky by white light from the sun being refracted by water droplets in the air. The colours are split up with the red on the outside. To see a rainbow you must be facing away from the sun towards the rainstorm. The photograph shows part of a rainbow that I saw over Lake Windermere in Cumbria. You can see not only the rainbow itself but also its reflection in the lake. If you look very carefully you can see part of the double rainbow, made by the light reflecting inside the raindrops to make this.

Prism and lightin physics

If you want a good night’s sleep without any interruptions from moonlight, street lights, headlights or the sun coming up, blackout curtains for the bedroom could be the perfect window coverings for you. The heavy fabric of these thick curtains falls elegantly and evenly to the floor, having a functional light-blocking impact with a serious side of style.

The colour of an object can look very different if the colour of the light shining on it is changed. This is because a surface will only reflect certain colours. This is especially important when choosing paints or clothes in a shop where there are coloured lights. You should always look at things in daylight (white light) to see their true colours. The results of shining different colours of light on different coloured surfaces is shown below.

After starting your day admiring the sunrise with your cup of coffee or tea, getting some work done at your desk could be hindered by that very same sun. Besides helping you to sleep restfully, thick blackout drapes are great for cutting down on annoying glare on computer screens that can distract you from your work. For the same reason, thick curtains are great for delivering an authentic home theater experience in the living room or wherever you catch up on your favorite shows.