Title:
ILLUMINATING UNIT
Document Type and Number:
WIPO Patent Application WO/2021/019611
Kind Code:
A1
Abstract:
This illuminating unit illuminates an imaging area of a single-color camera mounted on a substrate work machine for performing a work with respect to a substrate, and is provided with: a red light source for emitting red light; a green light source for emitting green light; a blue light source for emitting blue light; and an illumination controller capable of adjusting the light amount of the red light source, the green light source, and the blue light source each independently in the same number of gradations in a predetermined dimming range. The upper limit of the dimming range of a light source that has a large light amount among the red light source, the green light source, and the blue light source is smaller than the upper limit of the dimming range of a light source with a small light amount.
Inventors:
HASHIMOTO MITSUHIRO (JP)
Application Number:
PCT/JP2019/029472
Publication Date:
February 04, 2021
Filing Date:
July 26, 2019
Export Citation:
Assignee:
FUJI CORP (JP)
International Classes:
H05K13/08; H05K13/00
Domestic Patent References:
| WO2011148507A1 | 2011-12-01 |
Foreign References:
| JPH11312898A | 1999-11-09 | |||
| JP2006048315A | 2006-02-16 | |||
| JP2006322951A | 2006-11-30 | |||
| JP2005260268A | 2005-09-22 | |||
| JP2018138871A | 2018-09-06 | |||
| JPH10210218A | 1998-08-07 | |||
| JPH1140983A | 1999-02-12 |
Other References:
See also references of EP 4007482A4
Attorney, Agent or Firm:
ITEC INTERNATIONAL PATENT FIRM (JP)
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