JPS63153727A - Optical information recorder - Google Patents

Abstract

PURPOSE:To reduce the of a reproducing device by writing data on plural lines with respect to one track so as to increase the recording density of the recording medium to one track and increasing the relative speed between a head and the recording medium at read. CONSTITUTION:The light from a light emitting diode 3 of an optical information recorder is radiated onto an optical card 11 as a spot via a mirror 9 and a lens 5 and the reflected light is formed as a spot image on a photodetector 7 via the lens 5 and the mirror 9. Moreover, the light from a semiconductor laser 8 is reflected in a mirror 9 and made incident on the detector 7 via the lens 5 and the mirror 6. The recording/reproduction head 1 of the constitution above is supported by a support member 2, a focus coil 12 is wound on the outer circumference of side wall 2a, 2b in the track direction of the card 11 of the member 2 and tracking coils 13a-13d formed by folding a flat coil are wound to the four corners,. Then data are written on plural lines to one track with high density to simplify the recorder.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical information recording device for recording information on an optical recording medium such as an optical card, a compact disc, a video disc, or a magneto-optical disc.

[Conventional technology]

Conventional optical information recording devices are configured to record information only in one line along the track direction in each track of an optical recording medium.

[Problem that the invention seeks to solve]

For this reason, for example, in optical cards that have guidelines for obtaining a clock signal indicating the information writing timing for each track, a focus error signal and a track king error signal for each track of the write head, each track is In this case, there is a problem that the area ratio of the guideline to the information recording area becomes large and the information recording density in one track becomes low.

In addition, when recording and reproducing information while transporting an optical recording medium such as an optical card in the track direction, for example, the recording speed is set to 15 kb/s, and the playback speed is set to 10 kb/s.
If you try to set it to 0kb/s, even if you can easily transport the recording medium during recording, you need to increase the speed during playback, which requires a high-output motor and consumes a lot of power. There is a problem in that it becomes large and cannot be made smaller or lower in cost.

The present invention was made by focusing on these conventional problems, and it is possible to increase the recording density per track of a recording medium, and to reproduce the recorded information at high speed using a compact, low-cost reproduction device. It is an object of the present invention to provide an appropriately configured optical information recording device.

[Means and effects for solving the problem] In order to achieve the above object, the present invention includes means for illuminating an optical recording medium, and receiving light reflected by the illumination light on the optical recording medium by the illuminating means. A plurality of light receiving elements arranged perpendicularly to the track correspond to one track of the optical recording medium, and a first light receiving element on which information can be optically written.
a light source that selectively emits the light and a second non-writable light, and the light from the light source is scanned in a direction perpendicular to the track over an illuminated area on the optical recording medium by the illumination means. scanning means; means for detecting that the illumination light and the second light are respectively incident on the light receiving element based on the output of each of the light receiving elements; and the optical recording medium based on the output of the detecting means. a control means for controlling the light source to selectively project the first light, the illumination means illuminating the optical recording medium in a spot shape, and the light source emits a second light. and while scanning this in a direction perpendicular to the track by the scanning means, selectively emit the first light from the light source via the control means based on the output of the detection means. The optical recording medium is configured so that information can be recorded in a plurality of lines on each track.

〔Example〕

FIGS. 1A to 1C show essential parts of an embodiment of the present invention. This embodiment shows an optical card gluing/writing device, in which FIG. 1A is a perspective view of the recording/reproducing head and its driving mechanism, FIG. 1B is a plan view, and FIG. 1C is the same as the one shown in FIG. A sectional view taken along line C-C of B is shown. The recording/reproducing head 1 has a frame-shaped holding member 2 with a bottom, and all optical elements including a light emitting diode 3, lenses 4 and 5, a mirror 6, a photodetector 7, a semiconductor laser 8, and a mirror 9 are mounted inside this holding member 2. maintain the system. Here, the lenses 4 and 5 are fitted to the bottom surface 2a of the holding member 2, and the mirror 9 is attached to the holding member 2 via the bimorph 10. Note that the mirror 9 is formed of a material that transmits light from the light emitting diode 3 (wavelength: 0.88 μm) and reflects light from the semiconductor laser 8 (wavelength: 0.78 μm).

In this embodiment, the light from the light emitting diode 3 is transferred to the mirror 9.
After transmitting the light, the light is projected onto the optical card 11 through the lens 4, thereby spot illuminating the optical card 11, and the reflected light is incident on the photodetector through the lens 5 and the mirror 6. A spot image of the optical card 11 is formed on the optical card 7, and the light from the semiconductor laser 8 is reflected by the mirror 9 and then projected onto the optical card 11 via the lens 4, and the reflected light is reflected by the lens 5 and the mirror 6. After that, the photodetector is made to enter the photodetector. In this way, the recording/reproducing head 1 can be made compact by holding all the optical systems in the holding member 2 and by reflecting the reflected light from the optical card 11 by the mirror 6 and guiding it to the photodetector. Can be done. In addition,
The light from the semiconductor laser 8, as shown in a partial detail diagram in FIG. Inside, optical card 11
to move in a direction perpendicular to the track.

The holding member 2 has opposing side walls 2b and 2c extending in the track direction of the optical card 11, each of which has both ends protruding from walls 2d and 2e connecting these side walls 2b and 2c. Tracking coils 13a to 1 are formed by winding a focus coil 12 around the outer periphery of the holding member 2 across both side walls 2b and 2c, and by bending flat coils at the four corners around which the focus coil 12 is wound.
Attach 3d. This holding member 2 is connected to a focus direction, which is the normal direction of the optical card 11, and a tracking direction, which is orthogonal to the focus direction and the track direction of the optical card 11, through four linear elastic support members 14a to 14d. It is movably supported on the rising portion 15a of the slider 15.

The slider 15 is made of a magnetic material, and there is a third
As shown in detail in the figure, both side walls 2b, 2c of the holding member 2
A focus coil 1 extending parallel to the wall 2d between
2 and a tracking coil 13a mounted thereon, 1
A focusing coil 12 extending parallel to the U-shaped yoke portion 15b and the wall 2e sandwiching one vertical coil portion of each of the vertical coil portions 3b and the tracking coil 1 mounted thereon.
A U-shaped yoke portion 15c sandwiching one vertical coil portion of each of the yoke portions 15b and 13d is integrally formed, and permanent magnets 16a and 16b are provided on the inner surfaces of the outer rising portions of the yoke portions 15b and isc, respectively. Attach the focus coil 12 and tracking coil 13a.
A magnetic flux crossing 13d is generated. In this way, each yoke portion 15b.

By locating only the coil inside the permanent magnet 15c, the interval can be narrowed, and the permanent magnet 16a
, 16b can be effectively used. For example, if the distance between the yoke portions 15b and 15c is increased from 2n to 1.5 mm, the magnetic force will be increased by 1.8 times. Therefore, the permanent magnet 16a
.

16b can be made small and inexpensive, and the yoke parts 15b and 15c can also be made small.

On the other hand, if the wall of the holding member is also located inside the U-shaped yoke portion, the yoke interval will be widened (and the magnetic force will be reduced) by the thickness thereof.

The slider 15 is slidably attached to a guide shaft 18a extending in a direction perpendicular to the track direction of the optical card 11 via a bearing 17 at a rising portion 15a at one end, and is integrally mounted at the other end. Formed U-shaped engaging portion 15
d extends parallel to the guide shaft 18a.
8b in a slidable manner.

Further, in order to move the slider 15 in a direction perpendicular to the track direction of the optical card 11, a pin 15e is integrally formed on the slider 15, and the pin 15e is connected to the guide shaft 15.
8a and 18b are engaged with screw threads 19 extending parallel to them. In this way, the screw 19 is rotated in forward and reverse directions by a motor (not shown), and the slider 15 is moved in a direction perpendicular to the track direction of the optical card 11.

FIG. 4 shows the configuration of an example of the optical card 11. As shown in FIG.

This optical card 11 has a read-only area (
A ROM section) 22 and a data write area (DRAW section) 23 are provided continuously in the card width direction.

The R-OM section 22 and the DRAW section 23 each have a plurality of tracks along the longitudinal direction of the card, but in contrast to the ROM section 22, where all the areas are continuous and dedicated sections,
DRAW section 23 As shown in Figure 3 above, it consists of read-only sections such as a clock section and track number section, and a data write section where data is actually written.

On the surface of the optical card 110, the above-mentioned ROM section 22 and D
In order to control the conveyance of the optical card 11 in the RAW section 23, in order to control the transport of the optical card 11 in the read/write device, read-only high reflectance card detection marks 24a and 24b are provided, which are detected by the photoreflector of the read/write device. , a read-only high reflectance head start detection mark 24c detected by the recording/reproducing head in a read/write device to control movement of the head.
and a low reflectance track end detection mark 24d.

Note that in this example, the ROM section 22 and the D RAW section 2
3, a seek section 25a having a track number, etc. for searching for a desired track is provided at both ends of the card in the longitudinal direction.
, 25b are provided.

In this way, as shown in FIG. 5A, the card detection marks 24a and 24b are detected by the photoreflectors 26a and 26b of the read/write device, and the card transport motor (not shown) is activated based on the outputs of these photoreflectors 26a and 26b. The transport roller 27a is driven by controlling the drive of the transport roller 27a.

27b is rotated, thereby controlling the conveyance of the optical card 11. That is, as shown in FIG. 5B, the optical card 11 is inserted into the read/write device, and the card detection mark 24
When the photoreflector 26a detects the tip of the card a, the card transport motor is driven to automatically load the optical card 11, and the photoreflector 26a detects the rear end of the card detection mark 24a as shown in FIG. 5C. This temporarily stops this card conveyance. In this state, the recording/reproducing head 1 indicated by the X mark is a ROM.
In this state, the head 1 detects the head start detection mark 24c formed in contact with the first track of the ROM section 22, and starts the head 1. The seek section 25a scans in a direction orthogonal to the track to search for a desired track. Also, a trunk end detection mark 24d formed in contact with the last track of the DRAW section 23
indicates the end of a track, and when the head 1 detects this, it stops moving in the track direction. Furthermore, the card detection mark 24b detects the end of scanning one track by the head 1, and as shown in Figure 5, the photoreflector 26a detects this card detection mark 24b, thereby detecting the conveyance of the optical card 11. to stop. In this state, the recording/reproducing head 1 is located at the seek section 25b, and in this state it is possible to search for a desired track again.

FIG. 6 shows an example of the track format in the ROM section 22 and DRAW section 23 described above. One track 31 consists of a seek section 25a at the beginning, followed by a data section 32 and a seek section 25b. Note that the seek section 25b is similar to the seek section 25a, so illustration thereof is omitted. In this example, one track 16
is equally divided into 20 lines, and on the 10th line counting from the top, a clock section 33 for clock generation, focus error detection, and tracking error detection consisting of equally spaced black patterns is connected to the seek section 25a, data Part 3
2 and the seek portion 25b. In this example, in order to widen the detection range of the tracking error signal in the seek sections 25a and 25b, the width of the black pattern is made slightly larger than the width of the black pattern in the data section 32 in a part thereof.

In addition, in the seek section 25a, lines 1 to 5 and line 1
Lines 5 to 17 are used as a track number section 34 to form a pattern representing the track number, and lines 6 to 14 are used as a pattern recognition section 35 to form a pattern for recognizing the trunk number. In this example, lines 1-9 and 11-20 are all white in the 0 track, and in the first trunk.

In order to recognize the pattern and read the trunk number part 34, one line, which is the track number part 34, is black, lines 6 and 14 of the 6 to 14 lines, which are the pattern recognition part 35, are black, and the others are white. Then, from the second track onwards, only the pattern in the track number section 34 is different. Lines 18 and 19 of each trunk are DR
The recording confirmation unit 36 used in the AW unit 23 indicates that the track is in an unrecorded state when both ins are white, the 18th line is black when recording data, and the 19th line is also black when recording is completed. Set it to indicate that it has been recorded.

In addition, in the data section 32, the 20th line includes a black frame synchronization line 37 for detecting a frame synchronization signal.
form.

In this way, in this example, the data section 32 of each track
In the clock section 33, the upper lines 1 to 8 and the lower lines 12 to 19 constitute a byte of 8 bits each, and the ROM section 22 reads a total of 16 lines of data per track, and the DRAW
In the section 23, data is written in a total of 16 lines for one track, and the written data is read as required. Note that whether the trunk is the ROM section 22 or not,
Whether it is the DRAW section 23 or not is recorded in the data section 32 of the O track.

Further, in this embodiment, the ROM section 22 and the DRAW section
The read-only part in the section 23 consists of a low reflectance material that constitutes the binary data "0" and the background part on the card board, and a high reflectivity metal such as A1 that constitutes the binary data "1". The data writing part in the DRAW section 23 has a low reflectance material constituting the background part and a high reflectance material representing "1" of binary data, and a writing light (first light). The recording medium consists of a gelatin layer or the like with a silver-based coloring agent that exhibits a low reflectance representing the rOJ of binary data when irradiated with It is higher than the rlJ reflectance of the binary data in the part.

FIG. 7 shows the configuration of the photodetector shown in FIGS. 1A to 1C and the configuration of main parts of its signal processing circuit. The photodetector 7 has light receiving areas 41-1 to 41-17 arranged in the width direction of the track corresponding to the 1st to 8th lines and 12th to 20th lines of the track, and the track corresponding to the black pattern of the clock section 33. Four pairs of clock generation light receiving areas 42-1 to 42-8 arranged in the direction
and a pair of tracking light-receiving areas 43-1 and 43-2 spaced apart in the track width direction so as to receive a plurality of black pattern images of the clock unit 33, respectively; It is constructed with a pair of focus light receiving areas 44-1 and 44-2 spaced apart in the track direction so as to receive a plurality of black pattern images, respectively.

The outputs of the light receiving areas 41-1 to 41-17 are sent to the AV converter 45.
After voltage conversion by -1 to 45-17, the signal processing circuit 4
Supply to 7. Light receiving areas 42-1 to 42 for black 7 generation
-8 is light receiving area 42-1.42-3.42-5.42
-7 output and light receiving area 42-2.42-4.42
-6. The sum of the outputs of 42-8 and AV converter 45 respectively.
-18.45-19 and then supplied to the comparator 46-18 to obtain a clock signal, which is then supplied to the control circuit 48. In addition, the tracking light receiving area 43
The outputs of -1 and 43-2 are sent to the AV converter 45-
20. After voltage conversion by 45-21, operational amplifier 49
-1 to obtain a tracking error signal. This tracking error signal is supplied to the drive circuit 51-1 via the switching circuit 50-1 under the control of the control circuit 48, and the drive circuit 51-1 supplies a current corresponding to the tracking error signal to the tracking coils 13a to 13d. Tracking control is performed so that the tracking error signal becomes zero.

The outputs of the focus light receiving areas 44-1 and 44-2 are converted into voltages by AV converters 45-22 and 45-23, respectively, and then supplied to a differential amplifier 49-2 to obtain a focus error signal. This focus error signal is
Similarly to the tracking error signal, the drive circuit 51-2 passes through the switching circuit 50-2 under the control of the control circuit 48.
The drive circuit 51-2 supplies a current corresponding to the focus error signal to the focus coil 12 to perform focus control so that the focus error signal becomes zero.

In this embodiment, the above-mentioned light emitting diode 3 illuminates the track of the optical card 11 via the mirror 9 and the lens 4, and its image is shown as 52 in FIG. 7 on the photodetector 7 via the lens 5 and the mirror 6. The outputs of the comparators 46-1 to 46-17 corresponding to the outputs of the light-receiving areas 41-1 to 41-17 are synchronized with the clock signal to the signal processing circuit under the control of the control circuit 48. 47 to obtain a data reproduction signal. Also,
In writing data, the track is similarly illuminated by the light emitting diode 3, and the laser drive control circuit 53 and the bimorph drive circuit 54 are driven under the control of the control circuit 48, and the semiconductor laser 8 is used to drive the laser drive control circuit 53 and the bimorph drive circuit 54. A second light is generated, and the second light is transmitted to the light receiving areas 41-1 to 41-1 by displacing the mirror 9 by driving the bimorph 10.
The track portion corresponding to 41-17 is scanned in the trunk width direction, and during the scanning, the signal processing circuit 47 synchronizes the corresponding lines of the track based on the outputs of the light receiving areas 41-1 to 41-17. A signal is obtained, data to be written is read from the data source 55 using this synchronization signal, and based on this, the laser drive control circuit 53 is controlled to selectively generate the first writeable light from the semiconductor laser 8. Write data. Note that the semiconductor laser 8
The spot diameter of the laser beam projected onto the optical card 11 is approximately the width of one track line.

Here, as described above, the reflectance of the binary data "1" in the ROM section 22 of the optical card 11 is higher than the reflectance of the binary data "1" in the data writing section of the DRAW section 23, and therefore the light emitting diode When reading data by irradiating only the illumination light from ROM section 2,
Light receiving area 41-1 when the binary data is “1” in 2
The output current 11 of ~41-17 is the output current 1 of the binary data "1" in the data writing part of the DRAW section 23.
It becomes larger than 2. In addition, when writing data, in addition to the illumination light from the light emitting diode 3, a second light is projected from the semiconductor laser 8, so the output current i when receiving the reflected light from both is smaller than 11. Extremely large, i3>
There is a relationship of i,>iz.

Therefore, in this embodiment, the ROM 22 and the DRAW section 2
3, in order to be able to read binary data accurately using the illumination light from the light emitting diode 3,
In order to obtain an accurate synchronization signal using the illumination light from the light emitting diode 3 and the second light from the semiconductor laser 8 when writing data to the section 23, the comparators 46-1 to 46
The dark value voltage of -17 is set depending on each case. For this reason, the resistor 56-1 that sets the threshold voltage when reading the ROM section 22, the resistor 56-2 that sets the dark value voltage when reading the DRAW section 23, and the DR
The resistor 56-3 that sets the dark value voltage when writing data to the AW section 23 is connected to the comparators 46-1 to 46-17.
Between the inverting input terminal that inputs the dark value voltage of and the voltage source,
Switching transistors 57-1 to 57-3, respectively
These transistors 57-1 to 57-1 are connected in parallel through
57-3 under the control of the control circuit 48 via the drive circuit 58, depending on each case, to selectively turn on the dark value voltage.

Furthermore, the amount of light emitted from the semiconductor laser 8 changes due to temperature changes. Therefore, in this embodiment, the light receiving area 41-
17 is supplied to the AD converter 59, and is converted into an A/D converter based on the output of the comparator 46-17 in the data write mode in which the semiconductor laser 8 emits the second light.
The D-converted light quantity correction signal is supplied to the light quantity correction signal generation circuit 60, where it is compared with a reference value corresponding to a predetermined light quantity to obtain a light quantity correction signal, and this light quantity correction signal is supplied to the laser drive control circuit 53 to drive the semiconductor laser. 8, and thereby the semiconductor laser 8 emits a predetermined amount of light from the first and second lasers.
to generate light. Note that this light amount correction is
In the RAW unit 23, the 20 lines of the track are white, that is, the part that constitutes binary data "1", for example, by projecting the second light onto the 20 lines in the seek unit 25a.

In this way, in this embodiment, when reading data in the ROM section 22 and the DRAW section 23, the dark value voltages of the comparators 46-1 to 46-17 are set to predetermined values, and the light emitting diode 3 Tracking control and four by projecting illumination light.

Light receiving areas 41-1 to 41--17 while performing waste control
A reproduced signal is obtained based on the output of. In addition, the DRAW section 23
Similarly, when writing data to comparator 4,
Set the dark value voltages of 6-1 to 46-17 to the corresponding values,
While projecting illumination light from the light emitting diode 3 to perform tracking control and focus control, the second light from the semiconductor laser 8 is first driven by the bimorph 10 via the bimorph drive circuit 54 to shake the mirror 9. Scan up to the 20th line of the track and light receiving area 41-17
The light amount is corrected based on the output of
Data is written by selectively emitting the first light from the semiconductor laser 8 in accordance with the data to be written in synchronization with the synchronization signals obtained based on the outputs of the semiconductor lasers 6 and 6, respectively.

That is, when writing the binary data "1" to the line corresponding to the light receiving area at the time when the synchronization signal is obtained, the output light of the semiconductor laser 8 is left as the light of the 2, and the binary data "0" is written. '', the output light is used as the first light and the reflectance of that part is lowered. In this way, when writing of data to lines 1 to 19 is completed at a certain clock signal generation position, the mirror 9 is initialized via the bimorph drive circuit 54 and the bimorph 10 by a synchronization signal based on the output of the light receiving area 41-16. data is written in the same way at the next clock signal generation position.

In this way, by scanning the second light from the semiconductor laser 8, a synchronization signal corresponding to each line of the track is obtained, and data is written based on this, so even if the bimorph 10 has hysteresis, each line can be accurately written. Data can be written to.

Furthermore, in the embodiment described above, the size of the black pattern constituting the clock section 33 is partially enlarged in the seek section 25a, so that the detection range of the tracking error signal is widened when seeking to detect the trunk number.
Therefore, seek can be performed quickly.

When seeking a track number, after reading a certain track, that is, when the photoreflector 26a detects the card detection mark 24b, the card transport motor is stopped for a predetermined period of time, and the tracking control drive circuit 51-1 is stopped. Stop and move the head 1 to the seek section 25.
The head 1 can be moved to the next track in the simplest manner by moving it in the direction of the next track in step b and then activating the drive circuit 51-1 after a predetermined period of time has elapsed. Further, the standby position of the head 1 with respect to the optical card 11 can also be set to a roughly intermediate track position. In this way, the seek distance is shortened when reading data randomly, such as from a dictionary, and the access time can be shortened.

In the above-described embodiment, the seek sections 25a and 25b have the same pattern, but the seek section 25b may be provided with only a clock section, or may be omitted. Furthermore, the present invention can be effectively applied not only to the above-mentioned optical card but also to optical discs and other optical recording media.

〔Effect of the invention〕

As described above, according to the present invention, since data is written in multiple lines for one track, the recording density for one track of the recording medium can be increased, and the head and the recording medium can also be connected during reading. Therefore, the recorded data can be reproduced at high speed even by a low-cost reproduction device without increasing the relative movement speed of the .

[Brief explanation of the drawing]

1A to 1C are diagrams showing essential parts of an embodiment of the present invention, FIG. 2 is a partial detailed view of the optical system shown in FIG. 1, and FIG. 3 is a diagram showing the configuration of the slider shown in FIG. 1. A perspective view; FIG. 4 is a diagram showing the configuration of an example of an optical card; FIGS. 5A-D
is a diagram for explaining the operation when using the optical card shown in FIG. 4, FIG. 6 is a diagram showing an example of the trunk format of the optical card shown in FIG. 4, and FIG. 7 is an example of a signal processing circuit. FIG. 1... Recording/playback head 2... Holding member 3...
Light emitting diode 4, 5...Lens 6...Mirror 7...Photodetector 8...Semiconductor laser 9...Mirror 10...Bimorph
11... Optical card 12... Focusing coils 13a-13d... Tracking coils 14a-14
d... Linear elastic support member 15... Slider
15b, 15c...Yoke parts 16a, 16b
... Permanent magnet 17 ... Bearings 18a, 18b
...Guide shaft 19...Screw screw 22.
...ROM section 23...DRAW section 24a
, 24b... Card detection mark 24c... Head start detection mark 24d... Trunk end detection mark 25a, 25b... Seek portion 26a, 26b... Photo reflector 27a, 2
7b...Transport roller 31...Trunk 32...Data section 3
3... Clock section 34... Track number section 35... Pattern recognition section 36... Record confirmation section 37... Frame synchronization lines 41-1 to 41-17... Light receiving area 42-1 to 42-8... Light receiving area 43 for clock generation
-1, 43-2...Tracking light receiving area 44-
1, 44-2... focus light receiving area 45-1~
45-22-AV converter 46-1 to 46-18...Comparator 47...Signal processing circuit 48...Control circuit 49-1, 4
9-2...Differential amplifier 50-1, 50-2...Switching circuit 51-1, 51-2...Drive circuit 52...Spot image 53...Laser drive control circuit 54... - Bimorph drive circuit 55...Data sources 56-1 to 56-3...Resistors 57-1 to 57-3...Switching transistor 5
8...Drive circuit 59...A/D converter 60...Light intensity correction signal generation circuit Patent applicant Olympus Optical Industry Co., Ltd. Patent attorney Ko Sugimura Saku 4

Claims (1)

[Scope of Claims] 1. A means for illuminating an optical recording medium, and a device corresponding to one track of the optical recording medium so as to receive reflected light on the optical recording medium of the illumination light from the illuminating means. a plurality of light receiving elements arranged in a direction perpendicular to the track; a light source that selectively emits first light on which information can be optically written; and second light on which information cannot be written; scanning means for scanning light on the illumination area on the optical recording medium by the illumination means in a direction perpendicular to the track; and a control means for controlling the light source to selectively project the first light onto the optical recording medium based on the output of the detection means, The optical recording medium is illuminated by the illumination means, and while the second light is emitted from the light source and scanned by the scanning means in a direction perpendicular to the track, the optical recording medium is illuminated based on the output of the detection means. An optical information recording device characterized in that information can be recorded in a plurality of lines on each track of the optical recording medium by selectively emitting the first light from the light source via a control means. Device.