Title:
An extended optical element and a lamp house provided with the optical element and the optical element
Document Type and Number:
Japanese Patent JP6230973
Kind Code:
B2
Abstract:
An optical element is constituted of a polygonal column-shaped transparent body which has four inner wall surfaces that surround a rectangular column-shaped space having a square-shaped opening when seen in a plan view, four outer wall surfaces that are respectively parallel to the inner wall surfaces, and two outer wall surfaces which are perpendicular to a diagonal line of the square-shaped opening and face each other, in which the distance between the two outer wall surfaces facing each other is longer than the diagonal line.
Inventors:
Masayuki Naya
Application Number:
JP2014165346A
Publication Date:
November 15, 2017
Filing Date:
August 15, 2014
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B5/04; F21S6/00; F21V8/00
Domestic Patent References:
| JP2005316087A |
Foreign References:
| CN102866448A | ||||
| CN102519356A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda
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