LASER LIGHT IRRADIATION DEVICE AND LASER LIGHT IRRADIATION METHOD

WIPO Patent Application WO/2017/145610

A1

A laser light irradiation device is provided with: a laser light source for generating laser light; a spatial light modulator that has a display unit for displaying a phase pattern and modulates the laser light generated by the laser light source according to the phase pattern displayed on the display unit; a beam diameter conversion mechanism that is disposed in the light path for the laser light between the laser light source and the spatial light modulator and increases or decreases the beam diameter for the laser light; a lens insertion and removal mechanism that has a lens capable of changing the laser light beam diameter and can insert the lens into the light path for the laser light between the laser light source and the spatial light modulator and can remove the lens from the light path; and a control unit for at least controlling the phase pattern displayed on the display unit. The control unit displays a phase pattern for correcting wavefront aberration generated by insertion and removal of the lens by the lens insertion and removal mechanism.

WO/2009/063380	METHOD FOR STRUCTURING A PTFE LAYER
JPS6025616	PREPARATION OF COMPOSITE BLANK
WO/2023/149449	LASER PROCESSING METHOD

OKUMA JUNJI (JP)

PCT/JP2017/002351

August 31, 2017

January 24, 2017

Click for automatic bibliography generation  

HAMAMATSU PHOTONICS KK (JP)

B23K26/00; B23K26/064; H01L21/301; B23K26/53

WO2014041660A1

2014-03-20

US20020190040A1	2002-12-19
JP2012250249A	2012-12-20
JP2013132651A	2013-07-08

HASEGAWA Yoshiki et al. (JP)

View/Download PDF      PDF Help

Previous Patent: CLOTH TAPE AND FIBER PRODUCT

Next Patent: LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT