Objective measurement of resolution in film images.
It has been found experimentally that a correlation exists between visually determined resolution limits using four-bar patterns recorded on film and the measured intensity of laser light diffracted from a grating pattern recorded on the film near the four-bar patterns. This correlation has been established for one-lens type and film combination. A practical device has been constructed that reads resolution and is suitable for a production test of a lens-film system.
Carroll
J P
JP
Cupery
K N
KN