Light travels in straight lines and can be reflected or refracted. There are three types of materials: transparent, translucent, and opaque. Shadows are formed when an object blocks light. The length and shape of a shadow depends on the position of the light source and object. An experiment was conducted to determine which material - transparent plastic, tissue paper, or black paper - makes the darkest shadow. Black paper produced the darkest shadow because it is opaque and does not let any light pass through.
Light plays an important role in our daily lives. Light is also key to design. There’s design for light and design with light. Yet the way light is used morphs with new inventions and with increased awareness regarding sustainability and energy consumption.
A design proposal with the objective of 1) providing sufficient Lighting to the Dual Carriageway under the King Fahad & Tahalia Roads Intersection during Daytime, Night Time and Emergency scenarios and 2) providing excellent wall grazing effect on the writing on the walls of the underpass.
Powerpoint that outlines the three point lighting system used in films, key lighting techniques and activities to help students identify and talk about lighting
Corporate Lighting: Architectural lighting for brand communicationThomas Schielke
Doctoral thesis from Darmstadt University of Technology.
Title: Corporate lighting - Methods and techniques of architectural lighting for brand communication.
Author: Thomas Schielke
Presentation: Dissertation defense 4.3.2014.
Online access to complete doctoral thesis:
http://tuprints.ulb.tu-darmstadt.de/id/eprint/3466
Contact for correspondence: www.arclighting.de
Abstract:
This work analyses architectural lighting as an element of brand communication. The lighting is comprehended as the message of a sender, which has an impact on the appearance of architecture. In the context of experiments and case studies, the effects of lighting on the appearance will be examined for a neutral space and for interiors and exteriors in the retail and service sectors. Illuminance, luminance distribution, as well as the light spectrum and dynamic serve as independent variables of lighting. A model for the brand personality with the four factors of temperament, competence, attractiveness and naturalness will be drawn upon for the appearance as an independent variable, as well as a sociological model with the two factors of style and price for social milieus. The experiments are carried out in real space and using light simulations. The results provide correlations between the perception of brightness, contrast, colour temperature and colourfulness and the factors for the two models relating to the appearance. In individual cases models exist for predicting the appearance on the basis of the subjective evaluation of light. This work documents significant differences for both models with respect to the appearance due to an alteration of the light physics parameters of luminous intensity distribution and light spectrum. The economic analysis of the experiments did not result in any significant correlations between higher investment or operating costs and a correspondingly higher subjective price impression of the various lighting situations. Case studies on design guidelines for lighting prove the various lighting design and lighting technology strategies, as well as the processes in business practice. The semiotic analysis of case studies considers architectural lighting as symbol, the properties of the appearance as the object and the consumer as the interpretant, and discusses strengths and weaknesses in communication. In this way, the work produces a differentiated connection between architecture, lighting and marketing.
7. There are 3 types of materials
• Transparent materials let light pass through them
in straight lines
Glass
crystal
• Translucent materials let some light through
Tissue paper
Frosted glass
• Opaque materials do not let any light pass through
them
Wood
8. Characteristics of light
• Light travels in straight line
• Light can be reflected
• Light can be bent / refracted
9. SHADOW
A shadow is made when an object blocks light.
Light travels in straight line, so if it is blocked
there must be shadow formed
10. The object must be opaque or translucent to
make a shadow.
A transparent object will not make any
shadow, as light will pass straight through it.
11. Shadow made by sun
Early morning - the Sun is low in the sky
and casts a long shadow
12. Midday - The Sun is above the tree and
casts a short shadow
14. If an object is moved closer to
the light source, the shadow gets
bigger.
If an object is moved further
away from the light source, the
shadow gets smaller
15. MAKING SHADOW
Experiment aim: Find the best material to cast a shadow
Things you need:
transparent plastic - Black paper
Tissue paper - Torch /flashlight
White paper
Procedures :
Draw the shapes onto 1 piece transparent plastic (A) and 2
pieces of paper (B= tissue paper, C=black paper) with the
similar shape and size
Put the cut-out shapes one by one under the light
Shine a strong light onto white surface
Prediction:
Which object produces the darkest shadow?______________
16. Result
Shade following box to show how dark the shadows are.
plastic Tissue Black paper
Conclusion:
Which object produces the darkest shadow?______________
Tell your analysis why it could be
happen!__________________________
17. Conclusion
• Black paper is the best material to cast the
darkest shadow, because it is dark and
opaque so it won’t let any light pass trough
and block more light then others.