Search International and National Patent Collections

1. (WO2018142730) OUTER CYLINDER LENS AND LASER IGNITION DEVICE

Pub. No.:    WO/2018/142730    International Application No.:    PCT/JP2017/042201
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Sat Nov 25 00:59:59 CET 2017
IPC: G02B 7/02
F02P 23/04
Applicants: NIPPON ELECTRIC GLASS CO., LTD.
日本電気硝子株式会社
Inventors: TOMITA, Mitsuru
富田 充
Title: OUTER CYLINDER LENS AND LASER IGNITION DEVICE
Abstract:
Provided is an outer cylinder lens that is not readily broken, and whereby force exerted on an outer cylinder in conjunction with a temperature increase can be relaxed. The present invention is characterized by being provided with a lens 2 and a holder 3 inside which the lens 2 is retained, and in that the holder 3 has an outer wall surface 3b as a surface on the reverse side thereof from the lens 2, at least one notch part 4 is provided in the outer wall surface 3b, and an outer cylinder 5 provided on the periphery of the outer wall surface 3b is further provided.