Optical module and optical recording and/or reproducing apparatus
AssigneeRicoh Company, Ltd.
InventorSatoru Sugawara
Life of this patent
Estimating the term…
Abstract
An optical module has a first light source which emits a first light beam from a first light emission point in a predetermined direction, a second light source which emits a second light beam from a second light emission point in the predetermined direction, and an optical element. The optical element includes a plurality of reflection surfaces for reflecting the first and second light beams, and finally outputting the first and second light beams in the predetermined direction with a separation between the first and second light beams smaller than a distance between the first and second light emission points.
Claims30
An optical module comprising:
- a first light source which emits a first light beam from a first light emission point in a predetermined direction;
- a second light source which emits a second light beam from a second light emission point in the predetermined direction;
- and
- an optical element having a plurality of reflection surfaces for reflecting the first and second light beams, and finally outputting the first and second light beams in the predetermined direction with a separation between the first and second light beams smaller than a distance between the first and second light emission points.
An optical recording and/or reproducing apparatus for recording information on and/or reproducing information from a recording medium using a light beam, comprising:
- an optical pickup which emits one of two light beams having mutually different wavelengths on the recording medium depending on a type of the recording medium;
- and
- means for processing the information to be recorded on the recording-medium prior to supplying the information to the optical pickup, and processing the information reproduced from the recording medium and obtained from the optical pickup,
- said optical pickup having an optical module comprising:
- a first light source which emits a first light beam from a first light emission point in a predetermined direction;
- a second light source which emits a second light beam from a second light emission point in the predetermined direction;
- and
- an optical element having a plurality of reflection surfaces for reflecting the first and second light beams, and finally outputting the first and second light beams in the predetermined direction with a separation between the first and second light beams smaller than a distance between the first and second light emission points.
Dependencies are inferred from the claim text.