JPS6032019A - Recorder using laser light - Google Patents
Recorder using laser lightInfo
- Publication number
- JPS6032019A JPS6032019A JP58140919A JP14091983A JPS6032019A JP S6032019 A JPS6032019 A JP S6032019A JP 58140919 A JP58140919 A JP 58140919A JP 14091983 A JP14091983 A JP 14091983A JP S6032019 A JPS6032019 A JP S6032019A
- Authority
- JP
- Japan
- Prior art keywords
- laser light
- laser
- scanning
- polarized
- recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
不発明は記録すべき信号によって′Ｓ度変調されたレー
ザ光を偏向手段によって主走査方向に偏向して記録面上
に投影するようにした記録装置、将に高速プ１ｆンタと
して用いるのに好適な記録装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording apparatus in which a laser beam modulated by 'S degrees according to a signal to be recorded is deflected in the main scanning direction by a deflection means and projected onto a recording surface, and will eventually be used in high speed printing. The present invention relates to a recording device suitable for use as a 1f printer.
光を信号により輝度変調し、これを記録面に投影して走
査する装置はディスプレイやプリンタにおいて用いられ
ている。とくにプリンタは電子写真装置と組合せ、高速
で高品位の記録物が得られるため、広く普及しつつある
。2. Description of the Related Art Devices that modulate the brightness of light using signals and project and scan the light onto a recording surface are used in displays and printers. In particular, printers are becoming widespread because they can be combined with electrophotographic devices to produce high-quality recorded matter at high speed.
記録面において光スボツ）Ｅ主走査方向に偏向するため
の偏向手段としては多面鏡（ポリゴンミラーンご回転さ
せるもの、ガルバノミラ−ｆｉ屋勤させるもの、ホログ
ラムを回転させるものなどが知られているが、回転多面
鏡を用いるものが最も一般的である。光源としてレーザ
光源を用い、このレーザ光源から放射されるレーザ光を
回転多面鏡で偏向する場合、その走査速度は回転数に比
例するため、高速走査、すなわち高速記録を行なうため
には多面鏡を相当高速で回転させる。必要があする。そ
のためモータの耐久性や多面鏡の材質などが問題となる
。走査速度を低下させることなく多面鏡の回転速度を低
くするには、一度に複数のレーザ光で走査するようにす
ればよい。実際、多面・。As deflection means for deflecting the light in the main scanning direction (on the recording surface), there are known deflection means such as a polygon mirror (one that rotates a polygon mirror, one that rotates a galvano mirror, one that rotates a hologram, etc.). The most common method is to use a rotating polygon mirror.When a laser light source is used as the light source and the laser light emitted from this laser light source is deflected by the rotating polygon mirror, the scanning speed is proportional to the rotation speed. In order to perform high-speed scanning, that is, high-speed recording, it is necessary to rotate the polygon mirror at a fairly high speed.This raises issues such as the durability of the motor and the material of the polygon mirror. In order to reduce the rotation speed of the laser beam, it is possible to scan with multiple laser beams at once.
鏡ではなく、ガルバノミラ−による走査でレーザ光を音
響−光変調器で変調する際、複数の周波数で弊動するこ
とによりレーザ光を分割し、かつ変調することが行なわ
れている。しかし、このような記録装置は構成が複雑で
大がかりとなり、高価１゜となる欠点がある。また、２
つのレーザ光源から放射されるレーザ光をハーフミラ−
で合成することも考えられるが、ハーフミラ−では必ず
光量のロスが生ずるから、露光エネルギーに余裕がない
場合には適用することができない。さらに、２つのレー
ザ光の光軸をある程度離し、走査記録面で合成すること
も考えられるが、この場合には多面鏡の各反射面を広く
する必要があり、回転多面鏡が大形で重くなる欠点があ
る。また、このように２つのレーザ光の光軸をある程度
傾けて合成するハシ方法は、回転速度一定で同量される
レーザ光を走１査記録面で一定速度で走査し集光する、
一般にｆθレンズと呼ばれている走査用レンズを用いる
ため歪曲収差を与えており、光軸を外れるとずれが生ず
る欠点があり、記録画像の品位が低下する欠点がある。When a laser beam is modulated by an acousto-optic modulator by scanning with a galvanometer mirror instead of a mirror, the laser beam is divided and modulated by impingement at a plurality of frequencies. However, such a recording apparatus has the disadvantage that it is complicated and large-scale, and is expensive. Also, 2
Half mirror the laser light emitted from two laser light sources.
It is conceivable to synthesize the images using a half mirror, but since a loss in the amount of light always occurs with a half mirror, this cannot be applied when there is not enough exposure energy. Furthermore, it is also possible to separate the optical axes of the two laser beams to some extent and combine them on the scanning recording surface, but in this case, each reflective surface of the polygon mirror needs to be wide, and the rotating polygon mirror is large and heavy. There is a drawback. In addition, the method of combining two laser beams by tilting the optical axes of the two laser beams in this way involves scanning and focusing the same amount of laser beams at a constant rotational speed on the recording surface at a constant speed.
Since a scanning lens generally called an f-theta lens is used, it imparts distortion, and has the disadvantage that deviations occur when off the optical axis, resulting in a decrease in the quality of recorded images.
一方、最近ではフルカラーではないが、枠などノ色を変
える２色プリンタも開発されているが、電子写真装置と
組合せたものとして、感光体および現像器を２台ずつ設
けたもの、１つの感光体と・。On the other hand, recently two-color printers have been developed, although they are not full-color, but the colors of the frames and other parts can be changed. With the body.
色の異なる２色のトナーを入れた１つの現像器とを組合
せたものや、１つの感光体とそれぞれ色の異なるトナー
を入れた２つの現像器とを組合せたものなどが提案され
ているが、すべて２杢のレーザ光を独立に走査する必要
があり、複雑で大形で１高価となる欠点がある。そこで
複数の多面鏡やｆθレンズを用いるもの、１つの多面鏡
で異なる面にレーザ光を入射させ、それぞれ別々の走査
用レンズを介して感光体に入射きせるもの、２つのレー
ザ光の光軸を傾けて同一面に入射させ、歪み・・を補正
する光学系を設けたものなどが提案されている。しかし
、いずれも複数の走査用レンズや補正系を設ける必要が
あるため、複雑で大形となると共に高価となる欠点があ
る。さらに波長の角なるレーザ光を用いると共に波長選
択性のあるミラーやフィルタを用いて合成、分離する方
法も提案されているが、異なる波長のレーザ光を用いる
ことは感光体の分光感度特性やコストの点で問題がある
０
本発明の目的は、上述した従来の記録装置の欠点を除去
し、容易に高速走査が可能であると共にレーザ光の損失
もなく、構成も簡単で小形とすることができ、しかも安
価とすることができるレーザ光を用いる記録装置を提供
しようとするものである。Some proposals have been made, such as a combination of a single developing device containing toner of two different colors, or a combination of one photoconductor and two developing devices each containing toner of a different color. However, it is necessary to scan two laser beams independently, which has the disadvantage of being complicated, large, and expensive. Therefore, there are methods that use multiple polygon mirrors or f-theta lenses, methods that make the laser beam incident on different surfaces of a single polygon mirror, and those that enter the photoreceptor through separate scanning lenses. It has been proposed to tilt the light so that it is incident on the same surface, and to have an optical system that corrects distortion. However, in both cases, it is necessary to provide a plurality of scanning lenses and correction systems, so that they are complicated, large-sized, and expensive. Furthermore, a method has been proposed that uses laser beams with different wavelengths and wavelength-selective mirrors or filters to combine and separate them, but using laser beams with different wavelengths is difficult due to the spectral sensitivity characteristics of the photoreceptor and the cost. It is an object of the present invention to eliminate the above-mentioned drawbacks of the conventional recording apparatus, to easily perform high-speed scanning, to eliminate loss of laser light, to have a simple configuration, and to be compact. It is an object of the present invention to provide a recording device using a laser beam that can be used at low cost.
本発明の記録装置は、互いに直角を戊す方向に直線偏光
され、記録すべき信号によって輝度変調されたレーザ光
を放射する第１および第２のレーザ光源と、これらレー
ザ光源から放射される２つのレーザ光を合成する偏光光
合成手段と、この合成されたレーザ光を主走査方向に偏
向する偏向手段と、この偏向手段により偏向された合成
レーザ光を走査記録面で別々のスポットとして投響する
走査用レンズとを具えることを特徴とするものである。The recording device of the present invention includes first and second laser light sources that emit laser light that is linearly polarized in directions perpendicular to each other and whose brightness is modulated according to a signal to be recorded, and two laser light sources emitted from these laser light sources. a polarized light combining means for combining two laser beams, a deflection means for deflecting the combined laser beam in the main scanning direction, and a combined laser beam deflected by the deflection means to be projected as separate spots on a scanning recording surface. The present invention is characterized in that it includes a scanning lens.
本発明の記録装置によれば、偏向された合成光ビームを
さらに分離して２つのレーザ光を別々の走査記録面に投
影することができるが、このためには偏光光分離手段を
走査用レンズの後方に設けるだけでよいので、構成は著
しく簡単かつ小形となる。According to the recording apparatus of the present invention, it is possible to further separate the deflected combined light beam and project the two laser beams onto separate scanning recording surfaces. Since it only needs to be provided at the rear, the configuration becomes extremely simple and compact.
以下、図面を参照して本発明の詳細な説明するＯ第１図
は本発明のレーザ光ご用いる記録装置の一例の構成な示
すものであり、第１のレーザ光源１次へは半導体レーザ
を以って構成し、それから放射されるレーザ光は記録す
べき信号によって輝度変調されている。このように輝度
変調された第１のレーザ光ヲコリメータレンズ２により
平行光束とした後、偏光ビームスプリッタより戊る偏光
光合成手段８に入射させる。さらに第２のレーザ、光源
４を設け、記録すべき信号に応じて輝度変調された第２
のレーザ光を放射させる。この第２のレーザ光をコリメ
ータレンズ５により平行光束とした後、偏光光合成手段
８に入射させる。不発明においては、第１および第２の
レーザ光源１および４を、互いに直角方向に直線偏光さ
れたレーザ光を放射するものとする。すなわち、第１の
レーザ光は偏光光合成手段８の（社）光膜を透過する方
向に直線偏光されたものとし、第２のレーザ光は偏光膜
で反射される方向に直線偏光されたものとする。したが
って偏光光＠戊手段８からは第１および第２のレーザ光
が合成されたものが射出されることになる０後述すると
ころから明らかなように、合成された第１および第２の
レーザ光は完全に一致するのではなく、第１図の紙面に
対し垂直な方向、すなわち副走査方向に僅かにずれたも
のとなるようにする。第１図に示すように第２のレーザ
光源４と偏光光合成手段３との間にはビームを一方向に
のみ拡大するためのビームエキスパンダ６を配置する。Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows the configuration of an example of a recording apparatus using a laser beam according to the present invention. The laser beam emitted from the laser beam is intensity-modulated depending on the signal to be recorded. After the first laser beam whose luminance is modulated in this way is collimated into a parallel beam by the collimator lens 2, it is made incident on the polarized beam combining means 8 provided by the polarizing beam splitter. Furthermore, a second laser and a light source 4 are provided, and a second laser whose brightness is modulated according to the signal to be recorded is provided.
emit laser light. This second laser light is made into a parallel light beam by the collimator lens 5 and then made to enter the polarized light combining means 8 . In the present invention, it is assumed that the first and second laser light sources 1 and 4 emit laser light that is linearly polarized in directions perpendicular to each other. That is, it is assumed that the first laser beam is linearly polarized in the direction in which it passes through the optical film of the polarized light combining means 8, and that the second laser beam is linearly polarized in the direction in which it is reflected by the polarizing film. do. Therefore, a combination of the first and second laser beams is emitted from the polarized light beam means 8.As will be clear from what will be described later, the combined first and second laser beams do not match perfectly, but are slightly shifted in the direction perpendicular to the paper plane of FIG. 1, that is, in the sub-scanning direction. As shown in FIG. 1, a beam expander 6 is disposed between the second laser light source 4 and the polarized light combining means 3 to expand the beam in only one direction.
半導体レーザは共振器である導波路、の形状が長方体で
あり、出力窓が長方形であるため、方向によりビームの
広がる大きざが異なる。In a semiconductor laser, the waveguide, which is a resonator, has a rectangular shape, and the output window is rectangular, so the beam spread size differs depending on the direction.
したがって、一方のソＣ路中にビームエキスノぐンダを
挿入して走査記録面に投影される２つのビームスポット
の大きさが等しくなるようにしてしＡる。Therefore, a beam expander is inserted into one of the C paths so that the sizes of the two beam spots projected onto the scanning recording surface are made equal.
偏光光合成手段８で合成された第１および＠２のレーザ
光を多面鏡より成る偏向手段７に入射させ、この多面鏡
を矢印で示すように回転させることによって主走査方向
に繰り返し偏向させる。偏向手段７で反射されたレーザ
光をざらにｆθレンズと呼ばれる走査用レンズ８によっ
て所定の走査記録面９上にスポットとして投影する。コ
ノ場合、第１および第２のレーザ光は副走査方向に１ラ
インピツチだけずれたものとする。The first and @2 laser beams combined by the polarized light combining means 8 are made incident on the deflection means 7 consisting of a polygon mirror, and are repeatedly deflected in the main scanning direction by rotating the polygon mirror as shown by the arrow. The laser beam reflected by the deflection means 7 is projected as a spot onto a predetermined scanning recording surface 9 by a scanning lens 8, roughly called an fθ lens. In this case, the first and second laser beams are shifted by one line pitch in the sub-scanning direction.
第２図は走査記録面９上に形成されるレーザ光スポット
Ｓ０およびＳ２ヲ示すものであり、これらスポットは偏
向手段７の回転に伴って矢印Ａで示す主走査方向に一定
速度で移動するようになる。FIG. 2 shows laser beam spots S0 and S2 formed on the scanning recording surface 9, and these spots move at a constant speed in the main scanning direction indicated by arrow A as the deflection means 7 rotates. become.
スポットＳ０およびＳ２は矢印Ｂで示す副走査方向に僅
ゐ）にずれており、偏向手段７の１つの反射面、による
偏向作用によって同時に２本のラインＬ□したがって副
走査は′ｌライン周期当り２ＸＰの距離だけ移動するよ
うにする。The spots S0 and S2 are slightly shifted in the sub-scanning direction shown by the arrow B, and due to the deflection action by one reflecting surface of the deflection means 7, two lines L□ are simultaneously formed.Therefore, the sub-scanning is performed per 'l line period. Makes it move a distance of 2XP.
本例の記録装置を、例えば電子写真装置と組合せたプリ
ンタに適用する場合には、ビットマツプと呼ばれている
メモリに記憶されている第１ラインの画像信号で第２レ
ーザ光源４から放射されるレーザ光を輝度変調すると共
に第２ラインの画像信号で第２レーザ光源４から放射さ
れるレーザ光の輝度変調する。また走査記録面９は感光
体面とし、この感光体面に順次２ラインずつレーザ光ス
ポットを照射して電子写真の手法と同様にして静電潜像
を形成し、これをトナー像に現像し、このトナー像を記
録紙へ転写する。When the recording device of this example is applied to a printer combined with an electrophotographic device, for example, the image signal of the first line stored in a memory called a bitmap is emitted from the second laser light source 4. The brightness of the laser light is modulated, and the brightness of the laser light emitted from the second laser light source 4 is also modulated using the image signal of the second line. The scanning recording surface 9 is a photoreceptor surface, and a laser beam spot is sequentially irradiated on the photoreceptor surface in two lines to form an electrostatic latent image in the same manner as in electrophotography, and this is developed into a toner image. Transfer the toner image to recording paper.
上述したようにして本発明によれば２本のレーザ光を同
時に偏向して同時に２本の記録ラインを描くことができ
るｏしたがって、偏向手段７として回転多面鏡を用いる
場合、従来の１本のレーザ、光で記録する場合に比べ、
解像度を同じとすると多面鏡の回転速度を■とすること
ができ、一方回転速度を同じとすると従来の場合に比べ
て解像度を２倍とすることができる。また、記録に用い
られるレーザ光のエネルギーも従来のものに比べて２倍
となるので、記録時間を同一とすると、従来の場合に比
べて１４の出力のレーザ光源で足りることになる。また
、従来と同じ出力のレーザゲＣ源を用いるとすれば記録
時間を１４とすることができる。As described above, according to the present invention, two laser beams can be deflected at the same time to draw two recording lines at the same time. Therefore, when a rotating polygon mirror is used as the deflection means 7, it is possible to draw two recording lines at the same time. Compared to recording with laser or light,
If the resolution is the same, the rotational speed of the polygon mirror can be set to {circle around (2)}, and on the other hand, if the rotational speed is the same, the resolution can be doubled compared to the conventional case. Furthermore, the energy of the laser beam used for recording is twice that of the conventional one, so if the recording time is the same, a laser light source with 14 outputs is sufficient compared to the conventional case. Furthermore, if a laser beam C source with the same output as the conventional one is used, the recording time can be reduced to 14.
第３図は不発明の記録装置の他の例を示すものであるが
、第１図に示した素子と同一の素子には同じ符号を付け
て示した。不例でも２個のレーザ光源ｌおよび２から放
射される互いに直角方向に直線偏光されたレーザ光を偏
光光合成手段３で合成した後、偏向手段７に入射させて
主走査方向に岡回させて走査用レンズ８に入射させる点
は前例と同じである。不例では走査用レンズ８の後方に
偏光ビームスプリッタより収る口元光分離手段１０を配
置する。したがって第１のレーザ光はこの偏光光分離手
段１０を透過して第１の走査記録。FIG. 3 shows another example of the inventive recording apparatus, in which the same elements as those shown in FIG. 1 are given the same reference numerals. Even in rare cases, laser beams emitted from two laser light sources 1 and 2 that are linearly polarized in directions perpendicular to each other are combined by a polarized beam combining means 3, and then made incident on a deflecting means 7 and deflected in the main scanning direction. The point of making the light incident on the scanning lens 8 is the same as in the previous example. In exceptional cases, a mouth light separation means 10 that is smaller than the polarizing beam splitter is arranged behind the scanning lens 8. Therefore, the first laser beam passes through this polarized light separation means 10 and performs the first scanning recording.
面９に入射し、第２のレーザ光は偏光光分離手段１０に
よって反射されて第２の走査記録面１１に入射するよう
になる。第２の走査記録面１１は走査用レンズ８に駕し
て第１走査記録面９と共役な位置に配置されている。こ
のようにして、第１および第２のレーザ光は別々の走査
記録面９および１１上に投影されることになる。本発明
では偏向手段７および走査用レンズ８は第１および第２
のレーザ光に対して共通に設けられているので、構成は
非常に簡ｍかつ小形になると共に安価となる。The second laser beam is incident on the surface 9, is reflected by the polarized light separation means 10, and is incident on the second scanning recording surface 11. The second scanning recording surface 11 is disposed at a position that is conjugate with the first scanning recording surface 9 over the scanning lens 8 . In this way, the first and second laser beams will be projected onto separate scanning recording surfaces 9 and 11. In the present invention, the deflection means 7 and the scanning lens 8 are
Since it is provided in common for all laser beams, the configuration is extremely simple and compact, and is also inexpensive.
本発明は上述した実施例に限定されるものではなく、幾
多の変更や変形が可能である。例えば上述した実施例で
はレーザ光源として半導体レーザを用いたが、ガスレー
ザを用いることもでき、この場合にはブリュースタウィ
ンドを設けることにより互いに直角方向に直線偏光され
た２つのレーザ光を得ることができる。また、上述した
実施例では偏向手段として回゛転多面°鏡を用いたが、
ガルバノミラ−などの他の偏向手段を用いることもでき
る。さらに上述した実施例では偏光光合成手段および偏
光光分離手段としてプリズムを貼り合せた偏光ビームス
プリッタを用いたが、ガラス板上に誘電体多層膜を被着
したものを用いることもでき、この場合には構成はさら
に簡単になり、安価となる。The present invention is not limited to the embodiments described above, and numerous changes and modifications are possible. For example, in the above embodiment, a semiconductor laser was used as the laser light source, but a gas laser could also be used. In this case, by providing a Brewster window, it is possible to obtain two laser beams that are linearly polarized at right angles to each other. can. Furthermore, in the above-mentioned embodiment, a rotating polygonal mirror was used as the deflecting means, but
Other deflection means such as galvanometer mirrors can also be used. Furthermore, in the above-mentioned embodiments, a polarizing beam splitter with prisms bonded thereon was used as a polarized light combining means and a polarized light separating means, but it is also possible to use a dielectric multilayer film coated on a glass plate. is simpler and cheaper to construct.
上述したように、本発明においては、互いに直角方向に
直線偏光された２つのレーザ光な偏光光合成手段により
合成した後、偏向手段および走査用レンズに入射させる
ようにしたため、構成は非常に簡単となり、小形となる
と共に安価となる利点がある。また、２つのレーザ光を
走査記録面上ニ副走査方向に僅かにずれたスポットとな
るように投影するようにしたため、偏向装置を従来と同
じとすると、解像度を２倍とすることができ、解像度を
従来と同じとすると偏向速度をＡとすることができる。As described above, in the present invention, two laser beams that are linearly polarized at right angles to each other are combined by a polarized light combining means and then made incident on the deflection means and the scanning lens, so the configuration is very simple. , it has the advantage of being small and inexpensive. In addition, since the two laser beams are projected onto the scanning recording surface so that the spots are slightly shifted in the sub-scanning direction, the resolution can be doubled if the deflection device is the same as before. If the resolution is the same as before, the deflection speed can be set to A.
ざらに記録に利用できるエネルギーが２倍となるので、
記録時間を従来と同じとするとレーザ光源の出力ヲ１４
とすることができ、レーザ光源の出力を従来と同じとす
ると記録時間、・・・を偽とすることができる。また、
２色プリンタに１適用するような場合には、走査用レン
ズの後方に偏光光分離手段を設けると云った簡単な構成
によって２つのレーザ光を別々の走査記録面に投影する
ことができ、偏向ネ段および走査用レンズを共−１通に
使用することができるので、構成は著しく簡単かつ小形
となる利点もある。Since the energy available for recording is roughly doubled,
If the recording time is the same as before, the output of the laser light source will be 14
If the output of the laser light source is the same as before, the recording time, . . . can be made false. Also,
When applied to a two-color printer, the two laser beams can be projected onto separate scanning recording surfaces by a simple configuration such as providing a polarized light separation means behind the scanning lens, and the polarization Since the second stage and the scanning lens can be used in common, the structure has the advantage of being extremely simple and compact.
第１図は本発明によるレーザ光を用いる記録装置の一例
の構成を示す線図、
第２図は同じく丈の動作を説明するために２つのレーザ
光スポットの相対位置関係を示す線図、第８図は本発明
の記録装置の池の例の構成を示す線図である。
１・・・第ル−ザ光源 ２・・・コリメータレンズ８・
・・偏光光合成手段 ４・・・第２レーザ光源５・・・
コリメータレンズ ６・・・ビームエキスパンダ７・・
・偏向手段 ８・・・走査用レンズ９・・・走査記録面
１１１・・・偏光光分離手段１１・・・走査記録面〇
第１図
Ｖ
第２図
第３図FIG. 1 is a diagram showing the configuration of an example of a recording device using a laser beam according to the present invention; FIG. FIG. 8 is a diagram showing the configuration of an example of the pond of the recording device of the present invention. 1... Second loser light source 2... Collimator lens 8.
...Polarized light combining means 4...Second laser light source 5...
Collimator lens 6... Beam expander 7...
・Deflection means 8...Scanning lens 9...Scanning recording surface 111...Polarized light separation means 11...Scanning recording surface〇Figure 1 V Figure 2 Figure 3
Claims (1)
信号によって輝度変調されたレーザ光を放射する第１お
よび第２のレーザ光源と、これらレーザ光源から放射さ
れる２つのレーザ光を合成する面光光合成手段と、この
府−威されたレーザ光を主走査方向に偏向する偏向手段
と、この扇回手段により偏向された合成レーザ光を走査
記録面で別々のスポットとして投影する走査用レンズと
を呉えることを特徴とするレーザ光を用いる記録装置。 λ 前記走査用レンズと記録面との間に偏光光分離手段
を設け、−第１および第２のレーザ光源から放射される
レーザ光を別々の走査記録面上にスポットとして投影す
るように横取したことを特徴とする特許請求の範囲ｌ記
載のレーザ光を用いる記録装置。[Claims] L: first and second laser light sources that emit laser light that is emitted in a straight line in directions perpendicular to each other and whose brightness is modulated according to the signal to be recorded; and the laser light emitted from these laser light sources. A surface light beam combining means for combining two laser beams, a deflection means for deflecting the deflected laser beam in the main scanning direction, and a combined laser beam deflected by the fanning means are separated on a scanning recording surface. A recording device using a laser beam, characterized in that it includes a scanning lens for projecting a spot. λ A polarized light separating means is provided between the scanning lens and the recording surface, and the laser beams emitted from the first and second laser light sources are intercepted so as to be projected as spots on separate scanning recording surfaces. A recording device using a laser beam according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140919A JPS6032019A (en) | 1983-08-01 | 1983-08-01 | Recorder using laser light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58140919A JPS6032019A (en) | 1983-08-01 | 1983-08-01 | Recorder using laser light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032019A true JPS6032019A (en) | 1985-02-19 |
Family
ID=15279863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58140919A Pending JPS6032019A (en) | 1983-08-01 | 1983-08-01 | Recorder using laser light |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032019A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61213820A (en) * | 1985-03-19 | 1986-09-22 | Canon Inc | Image recorder |
| JPS6427361A (en) * | 1987-07-22 | 1989-01-30 | Dainippon Screen Mfg | Laser exposure method for picture scanning recorder |
| JPS6427362A (en) * | 1987-07-22 | 1989-01-30 | Dainippon Screen Mfg | Laser exposure method for picture scanning recorder |
| US4949100A (en) * | 1988-01-28 | 1990-08-14 | Minolta Camera Kabushiki Kaisha | Apparatus for forming composite laser beam |
| US4962312A (en) * | 1988-09-20 | 1990-10-09 | Minolta Camera Kabushiki Kaisha | Laser beam scanning device with plural sources and source-sensitive synchronization |
| US5007692A (en) * | 1988-12-29 | 1991-04-16 | Minolta Camera Kabushiki Kaisha | Laser beam scanning system |
| US5068677A (en) * | 1988-09-20 | 1991-11-26 | Minolta Camera Kabushiki Kaisha | Laser scanner with selected plural beam sources |
| WO1998059500A1 (en) * | 1997-06-24 | 1998-12-30 | Ldt Gmbh & Co. Laser-Display-Technologie Kg | Method and device for displaying a video image and method for the production of said device |
| US7705872B2 (en) * | 2007-09-04 | 2010-04-27 | Ricoh Company, Limited | Optical writing device and image forming apparatus |
| JP2011043661A (en) * | 2009-08-21 | 2011-03-03 | Ricoh Co Ltd | Polarization splitter, polarization splitting device, optical scanning device and image forming apparatus |
| US8351118B2 (en) | 2008-11-07 | 2013-01-08 | Ricoh Company, Ltd. | Polarization splitting device, method of manufacturing polarization beam splitter, optical scanning device, and image forming apparatus |
| US8531766B2 (en) | 2009-07-02 | 2013-09-10 | Ricoh Company, Limited | Polarization-separation device, optical scanning apparatus, and image forming apparatus |
| US8922863B2 (en) | 2011-09-21 | 2014-12-30 | Ricoh Company, Ltd. | Optical scanning device and image forming apparatus |
-
1983
- 1983-08-01 JP JP58140919A patent/JPS6032019A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61213820A (en) * | 1985-03-19 | 1986-09-22 | Canon Inc | Image recorder |
| JPH0743464B2 (en) * | 1985-03-19 | 1995-05-15 | キヤノン株式会社 | Image recorder |
| JPH0547153B2 (en) * | 1987-07-22 | 1993-07-15 | Dainippon Screen Mfg | |
| JPS6427361A (en) * | 1987-07-22 | 1989-01-30 | Dainippon Screen Mfg | Laser exposure method for picture scanning recorder |
| JPS6427362A (en) * | 1987-07-22 | 1989-01-30 | Dainippon Screen Mfg | Laser exposure method for picture scanning recorder |
| JPH0547152B2 (en) * | 1987-07-22 | 1993-07-15 | Dainippon Screen Mfg | |
| US4949100A (en) * | 1988-01-28 | 1990-08-14 | Minolta Camera Kabushiki Kaisha | Apparatus for forming composite laser beam |
| US4962312A (en) * | 1988-09-20 | 1990-10-09 | Minolta Camera Kabushiki Kaisha | Laser beam scanning device with plural sources and source-sensitive synchronization |
| US5068677A (en) * | 1988-09-20 | 1991-11-26 | Minolta Camera Kabushiki Kaisha | Laser scanner with selected plural beam sources |
| US5007692A (en) * | 1988-12-29 | 1991-04-16 | Minolta Camera Kabushiki Kaisha | Laser beam scanning system |
| WO1998059500A1 (en) * | 1997-06-24 | 1998-12-30 | Ldt Gmbh & Co. Laser-Display-Technologie Kg | Method and device for displaying a video image and method for the production of said device |
| US7705872B2 (en) * | 2007-09-04 | 2010-04-27 | Ricoh Company, Limited | Optical writing device and image forming apparatus |
| US8351118B2 (en) | 2008-11-07 | 2013-01-08 | Ricoh Company, Ltd. | Polarization splitting device, method of manufacturing polarization beam splitter, optical scanning device, and image forming apparatus |
| US8531766B2 (en) | 2009-07-02 | 2013-09-10 | Ricoh Company, Limited | Polarization-separation device, optical scanning apparatus, and image forming apparatus |
| JP2011043661A (en) * | 2009-08-21 | 2011-03-03 | Ricoh Co Ltd | Polarization splitter, polarization splitting device, optical scanning device and image forming apparatus |
| US8922863B2 (en) | 2011-09-21 | 2014-12-30 | Ricoh Company, Ltd. | Optical scanning device and image forming apparatus |
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