Abstract: The optical performance of lighting products plays an important role. The current industrial
design of lighting products mainly focuses on the appearance, structure, material, and ergonomics,
while calls for effective methods that can take into full account the lighting effects and optical
performance during the design process. The method of design innovation for lighting products based
on optical simulation using DIALux, is characterized with simulating the virtual environment of their
use, and carry out calculations and analysis of lighting effects according to the specific light source
distribution parameters and illumination properties to determine the best location and angle. Thus a
prototype can be built and used as a guide for the design and development of lighting products. It can
also ensure that subsequent design is reasonable in terms of lighting characteristics. This method can
also be used for lighting verification analysis of existing designs and products, identifying problems
in the design process and suggesting improvements.

Key words: design innovation, lighting analysis, product prototype design, conceptual design