Title:
BOARD LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2020087508
Kind Code:
A
Abstract:
To provide a board lighting device that can reduce illuminance unevenness of a board and an illuminance difference.SOLUTION: A lighting device 1 includes: multiple LEDs 32 arranged in parallel on a board 5; a condenser lens 33 provided while corresponding to each LED 32 and condensing light from each LED 32; and a lenticular lens board 35 for changing a luminous flux of light condensed by the condenser lens 33 to a strip-like luminous flux L35 of which size in a longitudinal direction is larger than a size in a depth direction.SELECTED DRAWING: Figure 9
Inventors:
AOI MASANORI
TAKANO YOSHIRO
KAMIKAWA HIDEKI
IIOKA TORU
TAKANO YOSHIRO
KAMIKAWA HIDEKI
IIOKA TORU
Application Number:
JP2018214438A
Publication Date:
June 04, 2020
Filing Date:
November 15, 2018
Export Citation:
Assignee:
AOI KOKUBAN SEISAKUSHO KK
KPLUS CO LTD
R ATELIER INC
KPLUS CO LTD
R ATELIER INC
International Classes:
F21S8/00; F21S8/04; F21S8/08; F21V5/00; F21V5/04; F21V7/00; F21V7/05; G09F13/02
Domestic Patent References:
| JP2018049748A | 2018-03-29 | |||
| JP3188622U | 2014-01-30 | |||
| JP2018170155A | 2018-11-01 | |||
| JP2010527104A | 2010-08-05 | |||
| JP2014002353A | 2014-01-09 | |||
| JP2013037918A | 2013-02-21 |
Foreign References:
| WO2013183205A1 | 2013-12-12 |
Attorney, Agent or Firm:
Heiwa International Patent Office