Patent application number | Description | Published |
20100060969 | OPTICAL BEAM GENERATING DEVICE - The light beam generator | 03-11-2010 |
20100103962 | LIGHT SOURCE DEVICE, OBSERVATION DEVICE, AND PROCESSING DEVICE - A light source device | 04-29-2010 |
20100270277 | LASER MACHINING DEVICE AND LASER MACHINING METHOD - A laser machining device | 10-28-2010 |
20100295836 | PHASE MODULATING APPARATUS AND PHASE MODULATING METHOD - The present invention relates to a phase modulating apparatus capable of highly accurately and easily correcting the phase modulation characteristic of a reflective electric address spatial light modulator even when a condition of input light is changed. In the LCOS phase modulating apparatus, an input unit inputs the condition of the input light, and a processing unit sets an input value for each pixel. A correction value deriving unit determines a correction condition according to the condition of the input light. A control input value converting unit converts the input value set for each pixel into a corrected input value based on the correction condition. An LUT processing unit converts the corrected input value into a voltage value, and drives each pixel by using a drive voltage equivalent to the converted voltage value. | 11-25-2010 |
20110058579 | LASER LIGHT SOURCE - A laser light source | 03-10-2011 |
20110064113 | LASER LIGHT SOURCE - A laser light source | 03-17-2011 |
20110181929 | LASER PROCESSING DEVICE AND LASER PROCESSING METHOD - A laser processing device | 07-28-2011 |
20130286453 | LASER EMITTING APPARATUS USING A BASIC HOLOGRAM AND A FOCUSING HOLOGRAM - A laser processing apparatus including a laser light source, a phase modulation type spatial light modulator, a driving unit, a control unit, and an imaging optical system. A storage unit that is included in the driving unit stores a plurality of basic holograms corresponding to a plurality of basic processing patterns and a focusing hologram corresponding to a Fresnel lens pattern. The control unit arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit, overlaps the focusing hologram with each of the basic holograms arranged in parallel to form the whole hologram, and presents the formed whole hologram to the spatial light modulator. | 10-31-2013 |
Patent application number | Description | Published |
20090147161 | REFLECTIVE SPATIAL LIGHT MODULATOR - The present invention relates to a reflective spatial light modulator enabling improvement of light resistance and prevention of damaging of the liquid crystal layer. The reflective spatial light modulator controls phases of the incident light and a reflected light while reflecting light made incident from a front side, and comprises a liquid crystal layer, a dielectric multilayer film, and a phase shift layer. The liquid crystal layer is filled with a liquid crystal comprised of a light modulating material, and modulates the incident light. The dielectric multilayer film reflects the incident light. The phase shift layer is disposed between the liquid crystal layer and the dielectric multilayer film to shift phases of the incident light and the reflected light at an interface of the liquid crystal layer. | 06-11-2009 |
20100000978 | LASER MACHINING DEVICE AND LASER MACHINING METHOD - A laser machining device is provided with a laser light source, a spatial light modulator, a driving unit, a control unit, and a condensing optical system. The control unit selects a basic hologram corresponding to each basic machining pattern included in a whole machining pattern in a workpiece from a plurality of basic holograms stored by the storage unit, and determines a display region of the basic hologram in the spatial light modulator so that the deviation of the value of “Iη/n” becomes small for the selected respective basic hologram when the intensity of a laser beam input to a display region of the basic hologram in the spatial light modulator is defined as I, the diffraction efficiency of the laser beam in the basic hologram is defined as η, and the number of condensing points in a basic machining pattern corresponding to the basic hologram is defined as n. | 01-07-2010 |
20100026620 | LCOS SPATIAL LIGHT MODULATOR - The display area selection circuit selects a desired display area. The signal generating circuit sets a period of each shift signal generated while the selection position of the pixel diode is between the shift start position and the display start position shorter than a period of each shift signal generated while the selection position of the pixel diode is between the display start position and the display end position. | 02-04-2010 |
20100079832 | LASER PROCESSING APPARATUS AND LASER PROCESSING METHOD - A laser processing apparatus 1 includes a laser light source | 04-01-2010 |
20130068742 | LASER MACHINING DEVICE AND LASER MACHINING METHOD - A laser machining device | 03-21-2013 |
20140036182 | PHASE MODULATING APPARATUS AND PHASE MODULATING METHOD - The present invention relates to a phase modulating apparatus capable of highly accurately and easily correcting the phase modulation characteristic of a reflective electric address spatial light modulator even when a condition of input light is changed. In the LCOS phase modulating apparatus, an input unit inputs the condition of the input light, and a processing unit sets an input value for each pixel. A correction value deriving unit determines a correction condition according to the condition of the input light. A control input value converting unit converts the input value set for each pixel into a corrected input value based on the correction condition. An LUT processing unit converts the corrected input value into a voltage value, and drives each pixel by using a drive voltage equivalent to the converted voltage value. | 02-06-2014 |
20140232766 | APPARATUS CONVERTING INPUT VALUE TO CONTROL VALUE, DRIVING PIXEL BASED ON CONTROL VALUE, AND MODULATING LIGHT - In an apparatus for modulating light, an spatial light modulator includes a plurality of pixels and configured to modulate input light in response to a drive voltage for each of the pixels. An input value setting unit is configured to set an input value for the each of pixels. The input value is a digital value, an entire gray level of the digital value is “N”, and “N” is a natural number. A converting unit is configured to convert the input value to a control value. A control value is a digital value, an entire gray level of the control value is “M”, and “M” is a natural number greater than “N”. A driving unit is configured to convert the control value to a voltage value and drive the each of the pixels in response to the drive voltage corresponding to the voltage value. | 08-21-2014 |