| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular lamp in which an antifogging coating can exhibit excellent antifogging properties, and which can inhibit the occurrence of a failure in an appearance such as the stain of a water drip on the inner surface of a lens. <P>SOLUTION: A vehicle headlight 10 as a vehicular lamp comprises a light source bulb 23 in a housing 11, a front lens 13 which permeates light from the light source bulb 23, and a vent hole 18 for adjusting a pressure variation in the housing 11. An antifogging coating 16 constituted of a crosslinked body prepared by three-dimensionally crosslinking a water soluble polymer and having a water absorption amount of 1.5-25 mg/cm<SP>2</SP>is formed on the inner surface 13a of the front lens 13. It is preferred that the crosslinked part constituting the crosslinked body has an ether bond or a siloxane bond, and has a remaining rate of the coating after immersion in water at 40°C after 240 hours of 20-100 mass%. It is also preferred that the crosslinked body is formed of a random copolymer. <P>COPYRIGHT: (C)2009,JPO&INPIT |
