Device and method of recording information on an optical disc
View Patent ↗A device for recording information on an optical disc so as to improve the recording quality of the information when a recording operation has just started. The recording device includes a luminous element radiating a light for recording information on the optical disc; a radiation intensity controller constantly controlling an intensity of radiation of the light radiated by the luminous element; a constant outputting unit providing a constant energy to the luminous element; a selector selectively selecting one of the outputs of the intensity of radiation controller and the constant outputting unit; wherein, the selector selects the output from the constant outputting unit during a predetermined duration from a starting time of recording the information on the optical disc, and selects the output from the intensity of radiation controller afterward.
1. A device for recording information on a disc, comprising:
a luminous element radiating a light for recording the information on the disc; and
a controller generating a constant voltage used for controlling the intensity of radiation of the light for a predetermined period of time from a starting time of the recording the information on the disc and adjusting the constant voltage in response to a temperature variation in the device.
2. The device of claim 1 , wherein the controller comprises:
a temperature detector detecting the temperature variation.
3. The device of claim 1 , wherein the luminous element generates a testing record on the optical disc while the intensity of radiation of the light varies, and the controller uses the testing record to adjust the constant voltage in response to the temperature variation in the device being a difference in the temperature in the device from a target temperature which is greater than a predetermined amount.
4. A method of recording information on a disc, comprising:
controlling an intensity of radiation of a light for recording the information on the disc for a predetermined period of time from a starting time of the recording the information on the disc using a constant voltage; and
adjusting the constant voltage in response a temperature variation in a device for recording the information on the disc.
5. The method of claim 4 , further comprising:
generating a testing record on the optical disc while the intensity of radiation of the light varies;
wherein the adjusting comprises using the testing record to adjust the constant voltage in response to the temperature variation in the device being a difference in a temperature in the device from a target temperature which is greater than a predetermined amount.