OPTICAL DEVICE AND BIOLOGICAL INFORMATION DETECTOR

• US 20110237908A1
• Filed: 02/22/2011
• Published: 09/29/2011
• Est. Priority Date: 03/25/2010
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: SATO, Shigemi
• Granted Patent: US 8,932,228 B2
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers

Abstract

An optical device including a contact part having a contact surface and an opposing surface, the contact surface coming into contact with a test subject and the opposing surface being opposite the contact surface; a support body installed on the opposing surface; a first element supported by the support body; and a second element disposed between the opposing surface and the support body; wherein one of the first element and the second element is a light-emitting element for emitting light towards a detection site of the test subject; another of the first element and the second element is a light-receiving element for receiving reflected light, the reflected light being light emitted by the light-emitting element and reflected at the detection site; and the contact part is formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting element.

Claims

1. An optical device comprising:

a contact part having a contact surface and an opposing surface, the contact surface coming into contact with a test subject and the opposing surface being opposite the contact surface;

a support body installed on the opposing surface;

a first element supported by the support body; and

a second element disposed between the opposing surface and the support body;

wherein

one of the first element and the second element is a light-emitting element for emitting light towards a detection site in the test subject;

another of the first element and the second element is a light-receiving element for receiving reflected light, the reflected light being light emitted by the light-emitting element and reflected at the detection site; and

the contact part is formed from a material that is transparent with respect to a wavelength of the light emitted by the light-emitting element.

2. The optical device according to claim 1, wherein

wiring for at least one of the first element and the second element is formed on the opposing surface.

3. The optical device according to claim 2, further comprising:

a reflecting part for reflecting the light emitted by the light-emitting element or the reflected light; and

a substrate, disposed between the support body and the reflecting part;

wherein

the wiring is electrically connected to a wiring formed on the substrate.

4. The optical device according to claim 1, wherein

the first element is the light-receiving element, and the second element is the light-emitting element.

5. The optical device according to claim 4, wherein

the support body has an electroconductive support surface, and an electrode on a support-surface-side of the light-receiving element is electrically connected to the support surface.

6. The optical device according to claim 1, wherein

the light emitted by the light-emitting element has a first light directed at the detection site and a second light directed in a direction other than that of the detection site, and the support body has a reflecting surface for reflecting the second light towards the detection site.

7. The optical device according to claim 4, wherein

the light-emitting element is installed on the opposing surface.

8. A biological information detector comprising:

the optical device according to any of claim 1, wherein

the reflected light has pulse rate information.