Think Tekk (Based in San Diego, California) have created the ‘Light Bandit’ which takes light from outside and passes it to where it’s needed using optical fibre cabling – and it’s surprisingly effective.
This reduces the cost of artificially lighting areas without windows and also carries health benefits.
Light enters the light bandit through a box which uses Fresnel mirrors to focus the light, the light then travels down optical fibres and can either light the tube or a bulb. The mirrors are motorised to ensure optimum angle for sunlight trapping.
Currently on Kickstarter the creators hope to be shipping the product in November 2015.