Concept Aims, Research & Process

from Mr. Fullmoon - Multi-function Desktop for WFG

Control System

Aims

The designed luminaire is fully functional yet aesthetically pleasing. As the designers of Mr. Fullmoon would take careful consideration of the potential glare users may experience, as well as the potential heat dissipation problems.

Mr. Fullmoon would possess a tunable white function whereby the colour temperature can be gradually modified. Recent concerns have been raised about how the human well-being and biological processes depend on the natural light. This could essentially mean cooler tones will be given out to match the existing daylight, and warmer tones before bedtime to avoid disrupting circadian rhythms, therefore simulating the spectral distribution of natural daylight throughout the day.

•Designing a desk mounted luminaire that provides good illumination for faces and tasks

•Targeted for work-from-home users

•CCT adjustable from 2700 to 5100 K

•Identifying warmer temperatures as the night mode therefore improves users' wellbeing + avoid disrupting circadian rhythms

•Manual control - simple and user-friendly

•Height adjustable to users with different monitor sizes

Circadian rhythm regulate functions such as temperature, awareness and immune system activity

Research

•Strong backlighting - appear full shadow on screen

•Top lighting - cast harsh shadows on users' face

•Diffused soft lighting in front of user

•Optimal luminance ratio between foreground (i.e. user' s face) and background (i.e. ambient area) = 2:1

•Maximum illuminance = 500 lux

Step 2 – Design exploration

•The spotlight is above the computer and is slightly higher than the eye level of the user.

•Create a diffused soft light for face illumination without glare by adding a diffuser.

•The direct light from the strip light is perpendicular to the desk, designed for task lighting.

•Height adjustable to cater users of different heights.

Design process

How our design has evolved

Step 1 – Idea generation

Create a luminaire consisting of horizontal and vertical elements, using fabric to create soft light.

•Spotlight - achieve a face illumination with appropriate shadow when the user is in a videoconference.

•Strip lighting - achieve a desk illumination when the user is working on the desk.

•Problem - We had to come up with a way to direct the light towards both the desk and user's face without glare.

Step 3 – Optimisation of design

•Problem: the strip light illuminates the user instead of the working plane (i.e., desk), causing glare.

•Solution: The vertical light is designed into a curved shape to direct lighting distribution towards desk.

•Use LED tape instead of the LED beams can be recessed into the curved part so that the bent downward light emitted by LED tape can directly illuminate the desk.

Technical details

Material, Dimensions and CCT Adjustment

Material

Dimensions (mm)

Lamp Holders or Sockets

Aluminum alloy

The Height Rotation Bearing

Steel

Rotary Dimmer/ Touch Control

Button

Aluminum clad wood

CCT Adjustment

The day/ night mode identified on the rotary CCT controller can essentially indicate the correct colour temperature to be used during the day, and warmer temperatures before bedtime. This can potentially avoid disrupting circadian rhythms, as well as enhance the human wellbeing.