Alexis Boivin

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Measurement of worker exposure to a thoracic health-related aerosol fraction is necessary in a number of occupational situations. This is the case of workplaces with atmospheres polluted by fibrous particles, such as cotton dust or asbestos, and by particles inducing irritation or bronchoconstriction such as acid mists or flour dust. Three personal and two(More)
We discuss two key concepts that are useful for extending the depth of field of an optical system. The first concept associates anamorphic processors with the methods that reduce the impact of focus errors, on the optical transfer function. The second concept links Alvarez–Lohmann lenses with tunable masks for controlling the depth of field, without(More)
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