METHOD FOR SIMULATING INDOOR ILLUMINANCE

Title:

METHOD FOR SIMULATING INDOOR ILLUMINANCE

Document Type and Number:

WIPO Patent Application WO/2012/032760

Kind Code:

A1

Abstract:

The light distribution characteristics of each actually employed skylight have been conventionally actually measured, and enormous types of optical members for constituting skylights have been currently suggested. It has been thus difficult to design the skylight in advance. To address this problem, the present invention provides a method for simulating indoor illuminance which includes preparing an intrinsic optical property function of a bidirectional transmittance function and a bidirectional reflectivity function based on values actually measured for each plate-shaped optical member; for a skylight constructed by combining a plurality of those optical members, creating an optical physical model based on the intrinsic optical property function and the construction mode of each optical member constituting the skylight; calculating the skylight light distribution data for daylight, which is introduced through the skylight, by using the optical physical model; and simulating the indoor illuminance, which would be provided by actually installing the skylight, on the basis of the light distribution data. The simulation is performed on a computer system which has stored the intrinsic optical property function of each optical member in a database.

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Inventors:

SUZUKI TAKAAKI (JP)
KATO TOSHIFUMI (JP)
ONO MIYOSHI (JP)
TOYAMA SUSUMU (JP)
KOGA YASUKO (JP)

Application Number:

PCT/JP2011/004963

Publication Date:

March 15, 2012

Filing Date:

September 05, 2011

Export Citation:

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Assignee:

SHIZUOKA PREFECTURE (JP)
SKY PLANNING CO LTD (JP)
SUZUKI TAKAAKI (JP)
KATO TOSHIFUMI (JP)
ONO MIYOSHI (JP)
TOYAMA SUSUMU (JP)
KOGA YASUKO (JP)

International Classes:

G06F17/50; E04D13/03

Foreign References:

JP2007272847A

2007-10-18

Attorney, Agent or Firm:

YOSHIKAWA, Koji et al. (JP)
Koji Yoshikawa (JP)

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