Abstract

For the $X$-cube prism three-charge-coupled-device (3CCD) camera, the spectra of the designed dichroic films in the $X$-cube prism shift with changes in the angle of incident light, producing non-uniformity of color on the image plane. We considered the influence of the incident angle on color performance in filter design and directly optimized the thin film to improve color consistency. An optical model was constructed to calculate the distribution of camera spectral sensitivity and independently correct the non-uniform color on the image plane. Results showed that the optimization and correction methods could significantly improve the color performance of the $X$-cube prism 3CCD camera.

© 2023 Optica Publishing Group

Optimum color filters for CCD digital cameras

Kai Engelhardt and Peter Seitz
Appl. Opt. 32(16) 3015-3023 (1993)

Metric for evaluation of filter efficiency in spectral cameras

Alireza Mahmoudi Nahavandi and Mohammad Amani Tehran
Appl. Opt. 55(32) 9193-9204 (2016)

3CCD camera’s capability for measuring color differences: experiment in the nearly neutral region

María S. Millán, Edison Valencia, and Montse Corbalán
Appl. Opt. 43(36) 6523-6535 (2004)

Gamut expansion of consumer camera to the CIE XYZ color gamut using a specifically designed fourth sensor channel

Dilip K. Prasad
Appl. Opt. 54(20) 6146-6154 (2015)

Rotating Prism Design for Continuous Image Compensation Cameras

J. H. Waddell
Appl. Opt. 5(7) 1211-1223 (1966)