The important thing is that your plant doesn't get too hot. Heat more than sun can damage a plant fast. If you feel it is too bright you can hang a sheer, and if it's a little warmer in that area add a fan for air movement. You'd be suprised at the extremes these orchids can handle with good airmovement and time to acclimate to their new area. Move them into the increased light slowly and all should be okay. Watch for stress and act accordingly. Most orchids love reflected sunlight, rather than direct sun anyways.