Acrylic and aluminium on wood. 92 x 92 cm

Strong primary colours merge optically and produce softer secondaries when reflected in the slightly matte metal surface.

Zig-Zag Reflecting Structure. 1969    [Click to view]

Acrylic on wood. 230 x 60 x 60 cm

This piece shows our early interest in the phenomenon of reflecting colour. The interior of this structure takes on a strong yet subtle bluish glow when viewed in bright sunlight. The photographs here do not quite do it justice.

Owned by the Leicestershire Collection.

Aluminium Triangles. 1969 [Click to view]

Polished aluminium and wood 140 x 28 cm

Acrylic on canvas. 125 x 125 cm

An early example of our use of the three light primaries, Red, Green and Blue to produce additive colour blending. A smaller version (43 x 43 cm) was also produced in gouache.

Acrylic on canvas. 125 x 125 cm

Also produced as silkscreen in 2 versions 43 x 43 cm

Early examples of optical (additive) colour mixing.

Painted wooden rollers in a perspex and brass dolly.

Made in in 2 versions 45 x 24 x 6 cm and 30 x 16 x 4 cm

Colours react together and produce unexpected combinations and inter-reflections  when the rollers are pushed along. The larger version in particular makes a pleasant clattering sound as the rollers rotate.

Painted steel in 3 units, approx. 46 x 46 x 24 cm each

The units can be arranged and rearranged

Spot-welded, painted steel in 3 units, approx. 90 x 90 x 22 cm each

The units allow for arrangement in many combinations.

Acrylic on canvas. 125 x 125 cm

Flat colours begin to flicker, hop and blend optically as they approach the centre.