Interior Design Projects

For an overview - click here

Background Information
Introduction
The Process
Colour Theory

Case Study

Design Illusions

The theory behind these illusions can be applied within design to make physical spaces appear very different (larger, smaller, brighter, darker and so on).

Müller-Lyer Illusion:

Which is the longer line?

The horizontal line segment on the left looks longer than the other one, even though both segments are of the same length.

Are the lines directly above each other at the same vertical position?

The bottom horizontal line segment appears to be to the right of the other horizontal segment.

Delboenf's Illusion:

Is the inner circle on the right larger than the outer circle on the left

Here we have four circles. The outer circle on the left, and the inner circle on the right are of the same size, but the right one appears larger.

Helmholtz' Irradiation Illusion:

Are the lines directly above each other at the same vertical position?

The two figures are of identical size, but the small white square (inside the larger black square) looks larger than the small black square.

Hermann's grid Illusion:

Are there grey spots at the intersection of the black squares?

Looking at this grid produces the illusion that there are grey spots or squares at the intersections of the streets or canals.

Poggendorff's Illusion:

 
Do the diagonal lines line up?

In the top diagram, the diagonal lines do not appear to line up, but they are the same line. Below that we have the same illusion as it is often shown, with a second segment which seems to line up with the other line on the other side.