Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OPTICAL ELEMENT AND LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/024641
Kind Code:
A1
Abstract:
Disclosed are an optical element and a light emitting device capable of reducing glare. A light guiding body (2) of which interior is solid is a meniscus lens that guides light entering a concave surface (11) and emits the light from a light emitting surface (12). The meniscus lens is formed of a light diffusing body containing light diffusing particles that diffuse light. A light emitting device (1) comprises the light guiding body (2), of which interior is solid, receiving light emitted from an LED member (3) using the concave surface (11) and emitting the light from the light emitting surface (12). The light guiding body (2) is a meniscus lens having the concave surface (11) serving as a concave and the light emitting surface (12) serving as a convex. This meniscus lens is formed of a light diffusing body that diffuses light.

Inventors:
MOCHIZUKI KEIICHI (JP)
Application Number:
PCT/JP2010/063535
Publication Date:
March 03, 2011
Filing Date:
August 10, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NITTOH KOGAKU KK (JP)
KOIKE YASUHIRO (JP)
MOCHIZUKI KEIICHI (JP)
International Classes:
H01L33/58; F21S2/00; F21V5/00; G02B5/02; G02B17/08; F21Y101/02
Domestic Patent References:
WO2007032187A12007-03-22
Foreign References:
JP2002228921A2002-08-14
JP2004253477A2004-09-09
JP2002043629A2002-02-08
JPH02155279A1990-06-14
JP2009054995A2009-03-12
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (JP)
Eye アット international patent business corporation (JP)
Download PDF: