Title:
OPTICAL DEVICE
Document Type and Number:
Japanese Patent JP2016111168
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical device capable of preventing alteration troubles, such as discoloration, melting, burning, and the like, due to large radiant heat from a light source and a heat radiation substrate to an optical lens, in a resin optical lens of low heat resistance, when the distance of the optical lens and light source and heat radiation substrate is short.SOLUTION: A light source 1 is mounted on a heat radiation substrate 2, and an optical lens 3 is arranged oppositely to the surface of the heat radiation substrate 2 mounting the light source 1. From the standpoint of weight saving, and molding degree of freedom, the optical lens 3 is composed not of glass, but of resin such as polycarbonate, acryl, and the like. The optical lens 3 is attached to the heat radiation substrate 2 by means of a screw 5. On the heat radiation substrate 2, an optical layer 6 having a large transmittance t for the visible light and a small emittance ε for the infrared light and an insulation layer 7, as the underlying layer thereof, are provided.SELECTED DRAWING: Figure 3
Inventors:
MATSUMOTO NAOKO
Application Number:
JP2014246542A
Publication Date:
June 20, 2016
Filing Date:
December 05, 2014
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
H01L33/58; H01L23/36; H01L33/64
Domestic Patent References:
| JPS5854343U | 1983-04-13 | |||
| JPH10188610A | 1998-07-21 | |||
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Foreign References:
| US20130277689A1 | 2013-10-24 | |||
| US20130277643A1 | 2013-10-24 |
Attorney, Agent or Firm:
Shozo Igarashi