Title:
VEHICULAR LAMP
Document Type and Number:
WIPO Patent Application WO/2022/185949
Kind Code:
A1
Abstract:
This vehicular lamp (10) comprises a configuration in which light from a light source (20) reflected by a reflector (30) is radiated toward the front of the lamp via a projection lens (40). Moreover, a reflective surface of the reflector (30) has a reflection region (30Aa2) for irradiating a short-distance road surface that is no more than 5 m from the front of the lamp. Additionally, a light diffusion process (grain finishing E) for causing light emitted from the light source (20) to be diffusely reflected is implemented in the reflection region (30Aa2). This makes it possible to irradiate the short-distance road surface in front of the lamp with reflected light from the reflection region (30Aa2) at a substantially uniform brightness having little unevenness in terms of light distribution.
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Inventors:
SUZUKI TAKAHIRO (JP)
SHIMIZU TAKAYA (JP)
FUJIMURA TOSHIYUKI (JP)
SHIMIZU TAKAYA (JP)
FUJIMURA TOSHIYUKI (JP)
Application Number:
PCT/JP2022/006603
Publication Date:
September 09, 2022
Filing Date:
February 18, 2022
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
F21S41/147; F21S41/19; F21S41/153; F21S41/275; F21S41/29; F21S41/33; F21S41/36; F21S41/37; F21S41/39; F21S41/663; F21S45/47; F21V5/00; F21V7/04; F21V7/09; F21V7/10; F21V17/00; F21V19/00; F21V29/503; F21V29/76; F21W102/155; F21W102/19; F21W102/30; F21Y115/10
Domestic Patent References:
| WO2013153964A1 | 2013-10-17 |
Foreign References:
| JP2001160309A | 2001-06-12 | |||
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| JP2014175102A | 2014-09-22 | |||
| JP2019220398A | 2019-12-26 | |||
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| JP2021033903A | 2021-03-01 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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