Design three

This structure is created from two spirals which will come together while containing a fixed space in between them.  This space will create varying focal lengths for the lenses I have, these will be placed in the outside spiral of the structure.  It will be necessary that these focal lengths are precise, so that focused projections are created.  The images will be projected onto screens made from opaque tracing paper, which will be placed on the inner spiral in line with the lenses.

This design would become an immersive space which my audience would walk into and be faced with various screens projecting images of the outside gallery space.  A spiral shaped room would work best for my camera obscura because this would cut of a lot of light in the inside space, ultimately this creates better viewing conditions for my audience, as the projected image will appear brighter in a darker light.  A roof will also be placed on the structure, which has the advantage of creating an even darker space but will also give stability to the structure.

The structure would have to be made from a bendable material, maybe a thin MDF.  As this is the structure I want to pursue the most, the next step is to build a model of this structure to get the scale and proportions correct and to see if the structure will actually be feasible.