Patent ID: 9690211
Date: 2017-06-27
CPC Classifications: G03F

Claim:
1. An exposure system including an exposure light source and a carrier which is arranged opposite to the exposure light source and configured for placing a to-be-exposed film which is to be exposed to light emitted from the exposure light source, wherein the exposure system further includes a thickness measurement unit and a light intensity adjustment unit which are electrically connected to each other, the thickness measurement unit is configured for measuring thicknesses of different regions of the to-be-exposed film, and the light intensity adjustment unit is configured for adjusting exposure-light intensities of different regions of the to-be-exposed film according to the thicknesses of corresponding regions of the to-be-exposed film measured by the thickness measurement unit; wherein the thickness measurement unit includes a measurement light source, a light splitting element, a light collection module, and a processing module, the light splitting element is opposite to the carrier in a direction of the light emitted from the exposure light source, light emitted from the measurement light source irradiates directly onto the to-be-exposed film after passing through the light splitting element, the light splitting element is configured for splitting light reflected back from the to-be-exposed film to obtain a reflection spectrum, the light collection module is configured for collecting the reflection spectrum and converting the reflection spectrum into an analog signal, and the processing module is configured for processing the analog signal to obtain the thicknesses of the to-be-exposed film and sending the thicknesses of the to-be-exposed film to the light intensity adjustment unit.