Title:
【発明の名称】アレルゲン検出システムおよび検出方法
Document Type and Number:
Japanese Patent JP2002512698
Kind Code:
A
Abstract:
A light beam is directed from a light source through an air sample so that portions of the beam will be scattered if any particles are present in the path of the beam. A beam blocking device on the opposite side of the air sample is arranged to block all light except light scattered in a predetermined angular range corresponding to a predetermined allergen particle size range. A light focusing lens in front of the light source is arranged to focus the unscattered part of the light beam onto the blocking device. Light transmitted through the blocking device is detected by a light detector and an alarm output signal is produced if the detected amount of light is above a predetermined level. The signal may be used to activate filtering or air conditioning devices.
Inventors:
Hamburger, Robert N.
One, rooibo
Gian, Jien-Pin
One, rooibo
Gian, Jien-Pin
Application Number:
JP50740699A
Publication Date:
April 23, 2002
Filing Date:
July 02, 1998
Export Citation:
Assignee:
Hamburger, Robert N.
International Classes:
G01N15/02; G01N21/47; G01N15/14; G01N21/53; (IPC1-7): G01N15/14; G01N21/47
Attorney, Agent or Firm:
Hidekazu Miyoshi (1 outside)