Lark Presentation

25,000 CCT 100% CS

LARK SPECTRAL LIGHTING

7,000 CCT 50% CS

LARK SPECTRAL LIGHTING

2700 CCT 5% CS

LARK SPECTRAL LIGHTING

METABOLIC FUNCTION

LARK SPECTRAL LIGHTING

22

Melatonin Secretion Starts

23

0

Deepest Sleep

1

2

21

3

20 Highest Body Temperature

19

Highest Blood Pressure

18

Lowest Body Temperature

4 5 6 Sharpest Blood Pressure Rise

Best Muscle Tone

17

7

16 Fastest Reaction Time Best Coordination

CIRCADIAN OSCILLATOR

8 15

Melatonin Secretion Stops

9 14

13

12

11

10 High Alertness

LARK SPECTRAL LIGHTING

379 384 390 396 402 408 414 420 426 432 438 444 450 456 462 468 474 480 486 492 498 504 510 516 522 528 534 540 546 552 558 564 570 576 582 588 594 600 606 612 618 624 630 636 642 648 654 660 666 672 678 684 690 696 702 708 714 720 726

1.0000

0.8000

0.6000

CIE D65 Daylight Luminant

0.4000

0.2000

0.0000

Circadian Response (CS)

SPECTRAL VARIATION OF RECEPTORS (nm)

Photopic Response (V 位)

LARK SPECTRAL LIGHTING

OPEN SOURCE CODE

LARK SPECTRAL LIGHTING

Visual Color Response

Circadian Resource (LUMINANCE)

HIGH

LOW

PREDICTIVE CIRCADIAN SIMULATION

LARK SPECTRAL LIGHTING

Circadian Resource

(LUMINANCE)

WINTER

SEASONAL SIMULATION

SPRING

SUMMER

LARK SPECTRAL LIGHTING

Circadian Resource

(LUMINANCE)

HIGH

LOW

WINTER

PREDICTIVE CIRCADIAN SIMULATION

SPRING

SUMMER

LARK SPECTRAL LIGHTING

Seasonal Sky Variability

View & Material Variability

December 21, 15:00

March 21, 15:00

June 21, 15:00

Overcast Sky Conditions

Partly Cloudy Sky Conditions

Clear Sky Conditions

Correlated Color Temperature: 7000K

Correlated Color Temperature: 5000K

Correlated Color Temperature: 25000K

March 21, 15:00 Partly Cloudy Sky Conditions Correlated Color Temperature: 5000K

CIRC ILL. | 178 LUX PHOTOPIC ILL. | 337 LUX

CIRC ILL. | 57 LUX

SAMPLE OUTPUTS

PHOTOPIC | 444 LUX

CIRC ILL. | 386 LUX

CIRC ILL. | 29 LUX PHOTOPIC ILL. | 81 LUX

PHOTOPIC | 833 LUX

CIRC ILL. | 1267 LUX

CIRCADIAN & PHOTOPIC NITS (CD/M2)

PHOTOPIC | 55 LUX

3000

CIRC ILL. | 301 LUX PHOTOPIC ILL. | 534 LUX 0

LARK SPECTRAL LIGHTING

Visual Color Response

Circadian Resource (LUMINANCE)

HIGH

Circ Ill. 1267 lux

Photopic 833 lux

PREDICTIVE CIRCADIAN SIMULATION

LOW

LARK SPECTRAL LIGHTING

PANELISTS

SUSAN GEIDUSCHEK

SENIOR DIRECTOR & ASSOCIATE CHIEF NURSE SEATTLE CHILDREN’S HOSPITAL

i i W

PANELISTS

LISA REITZES

PROJECT MANAGER, FACILITY DESIGN SEATTLE CHILDREN’S HOSPITAL

SUSAN GEIDUSCHEK

SENIOR DIRECTOR & ASSOCIATE CHIEF NURSE SEATTLE CHILDREN’S HOSPITAL

T h d t h

LISA REITZES

PROJECT MANAGER, FACILITY DESIGN SEATTLE CHILDREN’S HOSPITAL

AGENDA JUDITH HEERWAGEN

PROGRAM EXPERT U.S. GENERAL SERVICES ADMINISTRATION

MEHLIKA INANICI

ASSOCIATE PROFESSOR UNIVERSITY OF WASHINGTON

JUDITH HEERWAGEN

PROGRAM EXPERT U.S. GENERAL SERVICES ADMINISTRATION

MEHLIKA INANICI

ANITA ROSSEN

ASSOCIATE PROFESSOR UNIVERSITY OF WASHINGTON

5

ED CLARK

KARI THORSEN

ASSOCIATE PARTNER AND INTERIOR DESIGNER ZGF ARCHITECTS LLP

MARK GESINGER

PRINCIPAL AND MEDICAL PLANNER ZGF ARCHITECTS LLP

PRESENTERS

KARI THORSEN

ASSOCIATE PARTNER AND INTERIOR DESIGNER ZGF ARCHITECTS LLP

MARK GESINGER

PRINCIPAL AND MEDICAL PLANNER ZGF ARCHITECTS LLP

PRESENTERS

I

P

MARTY BRENNAN

1

ANITA ROSSEN

I

SUSAN SZENASY

1

MODERATED BY

P

SUSAN SZENASY

6

Q

1

S ED CLARK

ASSOCIATE AND SUSTAINABLE DESIGNER ZGF ARCHITECTS LLP

MARTY BRENNAN

PROJECT ARCHITECT AND DAYLIGHTING SPECIALIST ZGF ARCHITECTS LLP

ED CLARK

ASSOCIATE AND SUSTAINABLE DESIGNER ZGF ARCHITECTS LLP

MARTY BRENNAN

PROJECT ARCHITECT AND DAYLIGHTING SPECIALIST ZGF ARCHITECTS LLP

LARK

LARK

Lark Spectral Lighting is a collaboration of University of Washington and ZGF Architects

Lark Spectral Lighting is a collaboration of University of Washington and ZGF Architects

3