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In my work (lab research), I have need to take digital photos of thin transparent gels sitting on and being illuminated by a white light box. When I try to take a digital photo, weird orange bands appear in the image. These orange bands are not visible to the naked eye, but they appear in digital images taken using both Samsung and Apple smartphones. We know nothing about photography, so all our images have been made using the phones' default camera settings. To get rid of these orange bands, do I need to change some setting on the camera? Would some kind of filter get rid of these (even though, again, they aren't visible to the eye)? Any suggestions would be most welcome, because we are at a loss about what to do.