Title:
LIGHT RADIATION DEVICE AND LIGHT READING DEVICE
Document Type and Number:
Japanese Patent JP2018066969
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To perform a series of scanning of a light.SOLUTION: An emission part emits a light from a light source, and can change its emission angle. A reflection part reflects a light by multi times so that a string of an arc which is a locus drawn by a point separated from the light source by a constant distance along the light following to change of the emission angle of the light in a division angle range, becomes a same direction to a main scanning direction. A control part controls radiation of the light from the emission part. In the respective division angle range, when a radiation range which is a locus of a radiation position to an object of the light when the emission angle is changed, from one end to the other end of the division angle range, is considered, the radiation ranges are partially overlapped in the main scanning direction in the adjacent division angle range. The control part controls radiation of the light from the emission part so that lights of the two division angle ranges are selectively radiated, in a part where the radiation ranges are overlapped.SELECTED DRAWING: Figure 4
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Inventors:
NAKAZAWA MUTSUHIRO
Application Number:
JP2016207381A
Publication Date:
April 26, 2018
Filing Date:
October 21, 2016
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
G02B26/10; B23K26/082; H04N1/04; H04N1/113
Domestic Patent References:
| JP2013116488A | 2013-06-13 | |||
| JPS56155916A | 1981-12-02 | |||
| JPS5174523A | 1976-06-28 | |||
| JPS6028618A | 1985-02-13 | |||
| JP2005292628A | 2005-10-20 | |||
| JP2011000625A | 2011-01-06 |
Foreign References:
| EP0677383A2 | 1995-10-18 | |||
| WO2012093471A1 | 2012-07-12 |
Attorney, Agent or Firm:
Naomi Katsura River