I dont have many bulbos- but the plants you have should not have to bright sun atm. They are dehydrated, strong sun can kill them very fast, I believe.
Even if they got a little less sun than what they want, they shouldnt become like this in short time. Seems like more trouble than only light. (And sometimes it is better to keep plants a bit on the shady side until they recover a bit- these dont look like they can take much sun as they are now)
Like OW says- if you can tell more about how you grow them, then its easier to figure out what is wrong.
(And light can be one of the things, not saying it doesnt need more light- just saying too much light now will easily send them to orchid-heaven).
Lol- and now I read the second post from CambriaWhat- and agree
lol, thats how it is when you dont read all. Yes to sun, no to burning them😎