139results about How to "Precise shift" patented technology

The present invention provides a method for correcting a shift of an output wavelength of a light source. The output wavelength shift correcting method derives simple equations through experimental processes, predicts a shift degree of the output wavelength with respect to a varied input current using the equations whenever a drive current is reset later, and adjusts a drive temperature according to the predicted shift degree, thus correcting the shift of the output wavelength. The output wavelength shift correcting method is advantageous in that it provides a method of locking an output wavelength of each light source without continuously operating a wavelength locker or a wavelength measuring device, thus reducing the operating cost of the optical communication system.

The invention displays a lattice fringe on a spatial light modulator such as a liquid crystal panel or a digital mirror device panel, irradiates it with laser beams in three primary colors red, green and blue, and uses a primary diffracted beam created by the lattice fringe as an image recording reference beam. On moving the lattice fringe on the spatial light modulator on the modulator, a phase of the diffracted beam shifts due to a movement of a fringe, a phase shift amount of the beam is proportionate to an amount of movement of the fringe, and becomes unconnected to a wavelength of the beam. By this method, as an optical phase can be accurately shifted rendering unnecessary a device for detecting or regulating the optical phase, a system configuration of an image recording apparatus becomes simple.

The invention discloses an automatic insertion pin automatic grinding machine, which comprises a vibration material selection mechanism, a material grasping mechanism, a positioning detection mechanism, a material taking mechanism, an insertion pin grinding mechanism and an electric control mechanism, wherein the vibration material selection mechanism comprises a vibration material discharging assembly and a moving material collecting assembly, the material grasping mechanism comprises a material grasping assembly and a material grasping position changing assembly, the positioning detection mechanism comprises a divider turntable assembly, an insertion pin detection assembly and a defective product removing assembly, the material taking mechanism comprises a material taking assembly and a material taking replacing assembly, the insertion pin grinding mechanism comprises a belt rolling wheel assembly and a grinding cutter assembly, the electric control mechanism is electrically connected with each mechanism, and controls each mechanism to act in a coordinated way, the material grasping mechanism is arranged between the vibration material selection mechanism and the positioning detection mechanism, and the material taking mechanism is arranged between the positioning detection mechanism and the insertion pin grinding mechanism. The invention also discloses an automatic grinding method adopted by the grinding machine. The automatic grinding machine and the automatic grinding method have the advantage that the high-efficiency and high-quality automatic grinding of earphone insertion pins is realized.

malignancy classification method and medium for classifying a region of lung tissue are disclosed. The classifying includes: setting time points T1 and T2 measured from injection of a contrast agent. TI represents a wash-in time point for malignant lung tissue at which a first concentration value of the injected contrast agent is substantially equal to or near a peak for injected contrast agent concentration in the region of lung tissue. Patient concentration values of the contrast agent for the area of lung tissue at time points T1 and T2 are obtained, and a malignancy classification for the region of lung tissue is provided by comparing the obtained sample concentration values with a predetermined malignancy profile. A visual representation of the malignancy classification of the region of lung tissue is outputted.

An object is to be able to correct a shift even when the shift occurs in the light beam incident on a spatial light modulator in an optical information recording apparatus such as a hologram memory system and the like using the spatial light modulator having an area to modulate information beam. Hence, a shift amount detector is provided, which detects a shift of the light beam incident from a first light source on the spatial light modulator (modulator / light sensing device). Based on the shift amount detected by the shift amount detector, a position of the information beam modulating area in the spatial light modulator is shifted from an initial position.