EVDS 639 - Architectural Lighting Design Winter 2003

Term Project

Due: 2003 04 03 1000 Thursday

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The purpose of this assignment is to gain and demonstrate proficiency at developing an interior lighting design appropriate to an architectural concept. This project will address only electric lighting provisions. A space with a variety of features will be the subject of the assignment. Computer methods will be used as they provide a superior capacity to realize the design in virtual terms. Both qualitative and quantitative aspects of lighting design are to be addressed.

This is an individual project weighted at 60 percent of the course course grade.

A lighting design may be submitted for any of

a) the space you were assigned for EVDA 617,

b) the focus space for the integration studio for those students registered in the integration studio

c) a project to be selected by the student and approved by the instructor by 1200 on February 13, 2003.

Examples of suitable spaces are the sanctuary of a church and the lobby of a major public building. Residential spaces are not suitable for this exercise. Those who do not receive approval for a suitable space by Feb. 13 will be deemed to have selected option “a)”.

In the case of option "a", the base "lp" geometry file is provided, including a set of light sources with power (watts) indicated for each source (see the Lightscape "luminaires table"). This set of light sources may also be used for options b) and c).

All projects to be in SI units.

IMPORTANT: When creating the geometry model for import into Lightscape, walls, ceilings and floors must not run continuously from one space into another. They must be physically separate entities for each space, or the light will show up as “leaking” from one space into another via these surfaces due to the techniques used to calculate light exchanges among sources and surfaces.

Assessment for this assignment will be weighted as follows:

1. Statement of intentions (10%)

a) indicate whether this is a space with visual focal points for night-time illumination; briefly describe the visual focal points

b) describe the experiential requirements in terms of the word pairs such as

relaxed-focussed

domestic-commercial

and the general luminous atmosphere that will generate the qualities you identify as desirable.

c) describe the illumination ratios planned to highlight the visual focal points

- least intense

- 1.3:1 just noticeable emphasis (relative to least intense)

- 3:1 noticeable emphasis

- 10:1 distinct emphasis

- >10:1 dramatic emphasis

2. Lightscape model of the design (15%).

Requirement: Provide one Lightscape preparation file (*.lp) for the design.

The light sources shall be selected from the lighting library provided for the assignment, unless otherwise approved in advance by the instructor. Properties of light sources must be kept as initially assigned by the instructor.

3. Rendered images of the design (5%).

Requirement: Provide one rendered image illustrating the lighting solution. Use antialiasing and raytracing as required to produce good images (e.g., no “jaggies,” specular surfaces shown as such).

4. Conventional documentation of the installation (15%)

Requirement:

a) Plan and overlay reflected ceiling plan (that is, a ceiling plan that can be placed over the floor plan and through which the floor plan can be viewed) in AutoCAD with schedule of light sources/luminaires. A base ".dwg" plan of the space is provided for option "a" (7.5%)

b) Section (7.5%)

The placement of lighting equipment, daylighting shades or other controls, and other pertinent features should be clearly shown in a) and b).

5. Lighting power analysis (10%)

a) A table of sources/luminaires including type, wattage, and identifier (name) of same used in your Lightscape model; identifiers should be such that they can be readily related to the drawings. The table should show the number of luminaires of each type that are used in the design, the total watts for each luminaire type, and the total watts for all luminaires. The watts are provided in the Lightscape luminaire table for the option "a" projects; if additional sources are used, power levels should be checked with the instructor.

b) Complete a lighting power analysis (assessment of lighting power density). If lighting power density exceeds the level appropriate for your scenario (consult instructor re reference level), explain the cause and means by which it could be reduced to that level.

example

Luminaire Watts for Number of Subtotal

Identifier Luminaire Luminaires Watts

Ledalite1 62 10 620

Bega1 26 5 130

Total Watts 750

6. Details (10%)

Comment: Details are a critical aspect of successful lighting design. For instance, sectional drawings showing cutoff angles must be drawn for the most critical viewing positions. This will usually mean the section must be taken across the space of interest, and often diagonally, as the most critical viewing position.

Requirement: Annotated detail drawings (e.g., 1:5 to 1:20) of lighting systems showing approach to appearance and glare control. Brief annotations should be provided with the details to explain their purpose and function.

Note: This does not mean copying details, such as recessed lamp sections, from the text book. It means communicating the decisions made at a detailed level to create the desired lighting effects.

7. Rendered false colour images of the design (5%).

Requirement:

Provide as many false colour images as required to show significant illumination patterns.

8. Design Review (20%)

a) Design Review Explain the relationship between the lighting scheme you developed and the intentions in 1. Specificity is an asset. For instance, discuss the transition from verbal or conceptual intentions to specifications for lighting equipment. Address the intended illumination ratios and those finally achieved, making reference to the false colour images. (10%)

b) Illumination Review Review the adequacy of the illumination provided as determined through the Lightscape computations; give the basis for your assessment of adequacy (e.g., IES illuminance standards). Use the false colour images for this review (10%)

9. Instructor's assessment of overall design quality. (10%)

All materials should be labelled with the name of the person submitting them. Computer files are to be submitted on CD.

Evaluation

B+ work in categories 1 to 8 will
- be complete and correct
- have largely correct English usage

A- to A work will, in addition
- show an extra level of effort beyond the base requirements
- have, except for a couple of minor points, entirely correct English usage

Assessments will be based on based on the degree of challenge attempted, clarity, completeness, quality of concept, and logic.

Submissions missing the deadline will be assigned grade one level lower (i.e. from B+ to B) for each 24 hour period that they are late.