Recording apparatus for use with optical recording medium and method thereof

Abstract

An optical recording apparatus includes a light source driving unit for driving the light source to emit the light beam; an emission light power detecting unit for detecting an emission light power from the light source; and a light power adjusting unit for controlling the light source driving unit based on a detected light power by the emission light power detecting unit to adjust the emission light power from the light source.

What is claimed is:  
     
         1 . An optical recording apparatus for performing recording by irradiating a light beam emitted from a light source to a recording medium, comprising: 
 a light source driving portion for driving said light source to emit the light beam;    an emission light power detecting portion for detecting an emission write light power from said light source when performing writing on said recording medium; and    a light power adjusting portion for controlling said light source driving portion based on a detected write light power by said emission light power detecting portion to adjust the emission write light power from said light source while performing recording.    
     
     
         2 . An optical recording apparatus according to  claim 1 , wherein said light power adjusting portion adjusts to maintain the emission write light power substantially at a constant level.  
     
     
         3 . An optical recording apparatus according to  claim 1 , wherein: 
 said emission light power detecting portion includes a peak hold circuit for holding a peak power value of the light beam; and    said light power adjusting portion adjusts the emission write light power on the basis of the peak power value.    
     
     
         4 . A method of an optical recording apparatus for performing recording by irradiating a light beam emitted from a light source to a recording medium, comprising the steps of: 
 driving said light source to emit the light beam;    detecting an emission write light power from said light source when performing writing on said recording medium; and    adjusting the emission write light power from said light source on the basis of a detected write light power in the step of detecting an emission write light power while performing recording.    
     
     
         5 . A method according to  claim 4 , wherein the step of adjusting the emission write light power adjusts to maintain the emission write light power substantially at a constant level.  
     
     
         6 . A method according to  claim 4 , wherein: 
 the step of detecting an emission write light power includes the step of holding a peak power value of the light beam; and    the step of adjusting the emission write light power adjusts the emission write light power on the basis of the peak power value.