Manually operated low-coherence interferometer for optical information hiding.
A low-coherence interferometer for optical information hiding that ensures security of an optical image by hiding the image behind a light-scattering medium is demonstrated. The interferometer has a distinctive feature in that modulation of the optical-path difference between the object and reference arms is performed with a manual operation. The main advantage of the operation method is the absence of expensive optomechanical parts in the interferometer.
Otaka
M
M
Yamamoto
H
H
Hayasaki
Y
Y