Reconstruction of a breakage on a 16 mm telecine lens

Context

A telecine is a broadcast studio appliance that converts a film on reels into electrical signals that can be used by a television, frame by frame. Upon initial assessment, it turns out that the projection optics of the film on the electronic sensor are damaged (some lenses are broken).

The INQUEST laboratory was appointed by the insurer Bris de Machine to find a cost-effective solution for refurbishing the optics.

INQUEST’s know-how

There are two options: either to purchase new optics or repair the damaged ones, taking into account that this model is no longer included in its manufacturer’s catalogue, and that the manufacturer no longer has spare parts.

To study the feasibility of the repair, the lab searched international patent databases to find the “optical formula” of the projection optics. The formula is then simulated in light beam tracing software to verify the data.

Once the lens parameters have been identified, a custom optics manufacturer can be consulted to provide a quote.