US Patent 9933565 Contact imaging devices for fluorescence applications

Devices, systems, methods, and kits for contact imaging are provided. A contact imaging device includes an imaging sensor, a fixed fiber faceplate mechanically coupled to the imaging sensor, and an optical filtering layer mechanically coupled to the fixed fiber faceplate. The optical filtering layer can include an interference filter, an absorptive filter, and/or a removable fiber faceplate. The contact imaging device can be used to image fluorescent samples by filtering out excitation light on the basis of wavelength and/or angle of incidence.