Twenty feet -- that's six meters. Other suggestions include putting more distance between you and the device and using good lighting.

VOA: special.2011.08.01

My mom is a modern dancer and my dad is a lighting designer and technician

我妈妈是现代舞演员，我爸爸是个灯光设计师兼技术人员。

成为演员之路 - SpeakingMax英语口语达人

And not completely dark. The National Park Service has enough lighting to see many of the beautiful formations all around.

VOA: special.2009.12.07

Investigators sometimes use chemicals and special lighting to uncover fingerprints that cannot be seen with the eye alone.

VOA: special.2010.05.05

With special lighting effects, they became invisible and their brightly colored puppets took over the stage.

VOA: special.2009.09.23

Critics have praised the play for its skillful acting and expressive lighting and set design.

VOA: special.2010.03.12

Now a growing number of companies and hospitals will not hire smokers,or worse, will fire them if they are caught lighting up.

VOA: standard.2010.02.18

Responding to the need for safe, clean and affordable lighting, Irvine-Halliday set to work on a solution.

VOA: standard.2009.12.13

The development community is divided over whether non-profits should give away or sell technology and services as diverse as solar lighting, water filtration,healthcare and education.

VOA: standard.2010.08.09

"I chose to try to make progress, and the concept of burning down a building or lighting a torch just seemed to me to be essentially crazy.

VOA: standard.2010.04.16

And as the country prepared for a period of mourning, people were seen lighting candles and placing flowers in front of the Presidential Palace in Poland's capital Warsaw.

VOA: standard.2010.04.10

In contrast,a light bulb has much more impact in the use phase, where it's using the energy, and where you can reduce that with more efficient lighting technologies,"

VOA: standard.2009.03.30

He's also decided to give up leadership in Light up the World Foundation to start a company in India that will develop a more energy-efficient and cheaper lighting system that he hopes will bring even more light to the world's poor.

VOA: standard.2009.12.13

Patrick,who is also an activemember of the community. "But at first when they saw us celebrating only Passover and they were saying, 'Oh,this is not a good type of religion for you to belong.' So when we got to know about Rosh Hashana, Yom Kippur,Hanukkah, maybe lighting the candles and the Feast of Esther, which is Purim, and the fasting day, we were really happy,".

VOA: standard.2009.09.26