Brandaris 128
Michel Versluis

 
 

Rotating mirror cameras produce frame records at up to 25 million frames per second. They record up to 130 frames on a negative film track expose to the image which is relayed to the film by associated lenses and a fast rotating mirror (1.2 million rpm). The most important disadvantage of using negative film is its poor light sensitivity which is limited to 3200 ASA, highly insufficient for the short exposure times in our microscopic application.

By replacing the negative film track of the rotating mirror camera by highly sensitive CCD cameras we have constructed an ultra high-speed camera that records 128 digital frames at a speed of up to 25 million frames per second (40 nanoseconds interframe time).

The sweeping light beam within a rotating mirror camera resembles that of the optical principle of a light house, therefore we have named the camera Brandaris 128 after the Netherlands' most famous lighthouse on the island of Terschelling.

Website: http://www.brandaris128.nl

Brandaris 128: a digital 25 million frames per second camera with 128 highly sensitive frames.
C.T. Chin, Ch. Lancee, J. Borsboom, F. Mastik, M.E. Frijlink, N. de Jong, M. Versluis, D. Lohse,
Rev. Sci. Instrum., Vol. 74, No. 12, pp. 5026-5034 (2003).

Ultra high-speed imaging

@ nanoseconds timescale

Specifications

25,000,000
frames per second
6x128  full frames
of 500x292 pixels

segmented mode:
24x32 full frames

region of interest:
5400x32x32 frames