bring sth to light
- These problems should have been brought to light much earlier.
come to light
- Fresh evidence has recently come to light that suggests that he didn't in fact commit the murder.
cast/shed/throw light on sth
- As an economist, he was able to shed some light on the problem.
light at the end of the tunnel
- As finals approached, she felt that at last she could see the light at the end of the tunnel.