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JPS59204027A - light modulator - Google Patents

light modulator

Info

Publication number
JPS59204027A
JPS59204027AJP58079908AJP7990883AJPS59204027AJP S59204027 AJPS59204027 AJP S59204027AJP 58079908 AJP58079908 AJP 58079908AJP 7990883 AJP7990883 AJP 7990883AJP S59204027 AJPS59204027 AJP S59204027A
Authority
JP
Japan
Prior art keywords
light
scattered
luminous flux
foams
vapor
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
Application number
JP58079908A
Other languages
Japanese (ja)
Inventor
Takeshi Baba
健 馬場
Kazuhiko Matsuoka
和彦 松岡
Masayuki Usui
臼井 正幸
Kazuo Minoura
一雄 箕浦
Atsushi Someya
染谷 厚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon IncfiledCriticalCanon Inc
Priority to JP58079908ApriorityCriticalpatent/JPS59204027A/en
Publication of JPS59204027ApublicationCriticalpatent/JPS59204027A/en
Pendinglegal-statusCriticalCurrent

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Abstract

PURPOSE:To obtain an optical modulating device which is capable of obtaining a signal light having a good S/N ratio by irradiating by a luminous flux the foams which have reached a position where a light scattered by other than the foams is not generated even if the luminous flux is irradiated. CONSTITUTION:A liquid layer 2 of an optical modulating element is illuminated by selecting various conditions such as an illuminating position where a pattern of a heating resistor is not illuminated by an illuminating luminous flux 22, and a luminous flux incident angle, etc. Accordingly, vapor foams generated in the vicinity of the surface of heating resistors 6a, 6b rise in the vertically upper direction by a buoyancy, and when they reach a height (h), the illuminating luminous flux 22 is scattered. The luminous flux which has not been scattered by the vapor foams passes through a cylindrical lens 23, and thereafter, is shielded by a light shielding plate 24, but a luminous flux 26 scattered by the vapor foams passes through the cylindrical lens 23, and thereafter, its one part is shielded by the light shielding plate 24, and the greater part of the scattered luminous flux advances without being shielded by the light shielding plate 24. In this way, a signal light whose intensity has been modulated is obtained. In this way, the illuminating luminous flux is not scattered by the heating resistor patter, etc., therefore, it becomes a signal light having an excellent S/N ratio and can be extracted.

Description

Translated fromJapanese

【発明の詳細な説明】本発明は、光記録装置2光表示装置等に好適なう′L変
変装装置関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an L disguise device suitable for optical recording devices, two-light display devices, and the like.

記録或いは表示を光束を用いて行うことは、従来から広
く行われている。この為に、ブ0束に変調を与える技術
が6種々知られているが 、4¥−開昭56−5526
号には、電気光学効果を持つ結晶内の電界分布を変化さ
せ、この電界分布に伴って生じる結晶内の屈折率が変化
している部分に入射する光束を回折させて、変調を行う
ことが示され℃いる。
2. Description of the Related Art Recording or displaying using a beam of light has been widely practiced. For this purpose, there are 6 known techniques for modulating the 0 bundle.
The issue states that it is possible to perform modulation by changing the electric field distribution within a crystal that has an electro-optic effect, and diffracting the light beam incident on the portion of the crystal where the refractive index changes due to this electric field distribution. The temperature shown is ℃.

しかしながらこの方法では、変調を受けた光束は回折光
であり、変調を受けない光束と回折光とをより回折光が
けられる率が高く、従って光利用率が低かった。又、電
気光学結晶は高価であり、使用に除して該結晶に入射さ
せる光束に所定の偏光特性を与えなければならない。又
、上述した変調を行う場合には、光学結晶材料の内部の
電界発生部において光束を全反射させ且つ回折効率を良
くするため、その電極にできる限り平行に光束を入射さ
せる制約が課せられる。
However, in this method, the modulated light beam is diffracted light, and the diffracted light has a higher rate of eclipsing the unmodulated light beam and the diffracted light, so the light utilization rate is low. Furthermore, electro-optic crystals are expensive, and the light beam incident on the crystal must have predetermined polarization characteristics before use. Furthermore, when performing the above-mentioned modulation, in order to completely reflect the light beam at the electric field generating part inside the optical crystal material and improve diffraction efficiency, there is a restriction that the light beam is incident on the electrode as parallel as possible.

本件出願人においては、上記難点を解決する為に、@願
昭57−128566号で第1図及び第2図に示す、気
泡により光束を散乱させる光変調素子を示した。第1図
において、1は透明保鰻板、2は液体7’3層、6は熱
伝導性のある絶縁層、4は6”+6b、6c、6d・・
・・で示される発熱抵抗体が配列される発熱抵抗体層、
51:絶縁層3及び発熱抵抗体6a 、 6b 、(、
c 、 6d・・0の支持体である。
In order to solve the above-mentioned difficulties, the applicant of the present invention disclosed in @Gan Sho 57-128566 a light modulation element that scatters a light flux using bubbles, as shown in FIGS. 1 and 2. In Fig. 1, 1 is a transparent eel protection plate, 2 is a liquid 7'3 layer, 6 is a thermally conductive insulating layer, 4 is 6''+6b, 6c, 6d...
A heating resistor layer in which heating resistors indicated by . . . are arranged;
51: Insulating layer 3 and heating resistors 6a, 6b, (,
c, 6d...0 support.

沸屍・させ蒸気泡を形成する。例えば、第1図に示す様
に、発熱抵抗体6bが選択されて発熱すると、この熱は
抵抗体6bに隣接する絶縁層6を介して液体間層2に伝
達され、抵抗体6bに対向する液体、;、1層2の領域
の液体7を沸騰させて、この領域に蒸気泡7を形成する
。この蒸気泡7は所定の時間がA、イ過−すると、この
領域の液体が冷却するに伴って消滅する。この気泡形成
から気泡消滅までの1ザイクルは非常に短かい時間であ
り、KI″Izのオーダーで行うことが可能である。上
記発熱抵抗体1、il・Cの製造技術により支持体5上
に形成されるものであり、隣接する発熱抵抗体の間隔を
mμオーダーで形成している。
Boils and forms steam bubbles. For example, as shown in FIG. 1, when the heating resistor 6b is selected and generates heat, this heat is transferred to the liquid interlayer 2 through the insulating layer 6 adjacent to the resistor 6b, and the heat is transferred to the liquid interlayer 2 facing the resistor 6b. The liquid 7 in the region of the liquid; 1 layer 2 is boiled to form vapor bubbles 7 in this region. This vapor bubble 7 disappears as the liquid in this region cools after a predetermined time A has passed. One cycle from bubble formation to bubble disappearance is a very short period of time, and it is possible to complete the cycle on the order of KI''Iz. The distance between adjacent heating resistors is on the order of mμ.

4132図しまど431図に示す蒸気泡発生手段の構成
を示す斜視概略図であり、付番1〜6は第1図に示し゛
たものと同じである。8は導電線であり、発熱抵抗体(
6a、6b、・・・・)を各々独立に駆動できる株価々
の駆動電圧に接続され、一方発熱抵抗体の他端は接地あ
るいは共通の電圧に設定されている。導電線8より、発
熱抵抗体6 a + 6 b y・・・に各々電圧信号
が印加されると、各発熱抵抗体の近傍の液体薄層内に蒸
気泡が発生する。この蒸気泡は、電圧信号を零にすると
冷却され再び液化して消滅する。
4132 is a schematic perspective view showing the structure of the steam bubble generating means shown in FIG. 431, and numbered 1 to 6 are the same as those shown in FIG. 1. 8 is a conductive wire, and a heating resistor (
6a, 6b, . . . ) are each connected to a driving voltage that can be driven independently, while the other end of the heating resistor is grounded or set to a common voltage. When a voltage signal is applied from the conductive wire 8 to each heating resistor 6 a + 6 b y , vapor bubbles are generated in the thin liquid layer near each heating resistor. When the voltage signal is reduced to zero, the vapor bubbles are cooled, liquefied again, and disappear.

第61八)は前記蒸気泡発生手段B、Mを使用した光変
調装置の一実施例を示す図で、気泡で散乱される光束を
情報光として使用する場合の例である。前記蒸気泡発生
手段B−Mに光束10を入射し、発熱抵抗体(6a、1
5b、・・・・)のうち任意の発熱抵抗体6Cが電圧V
iによって駆動されたとき、蒸気泡7が発生し、発熱抵
抗体6Cに入射した光束は散乱光束12となって射出す
る。発熱抵抗体の表面で正反射して、蒸気泡7によって
散乱されない光束11は、レンズ13aによって結像さ
れ、その結像位置に配した遮光フィルター15aによっ
て遮光される。前記の散乱光束12はその遮光フィルタ
ー152によって一部分遮光されるが、部ブCフィルタ
ー15aの大きさを前記非散乱光束11の結像スポット
を遮光する最少限の大きさに1−ることによって、大部
分の散乱光束12′を受光操体14上に照射することが
可能である。又、本発門の気泡による光束の散乱角は、
上述した電気光学結晶を用いた散乱角に比して大きいの
で、同じ大ぎさの遮光フィルター15aを使用したとし
ても、遮光される散乱光の割合は非常に小さい。
No. 618) is a diagram showing an embodiment of a light modulation device using the vapor bubble generating means B and M, and is an example in which the light flux scattered by the bubbles is used as information light. The light beam 10 is incident on the vapor bubble generating means BM, and the heating resistors (6a, 1
5b,...), any heating resistor 6C has a voltage V
When driven by i, vapor bubbles 7 are generated, and the light flux incident on the heating resistor 6C becomes a scattered light flux 12 and exits. The light beam 11 that is specularly reflected on the surface of the heating resistor and not scattered by the vapor bubbles 7 is imaged by the lens 13a, and is blocked by the light-blocking filter 15a arranged at the image-forming position. The scattered light beam 12 is partially blocked by the light blocking filter 152, but by setting the size of the partial C filter 15a to the minimum size that blocks the imaging spot of the non-scattered light beam 11, It is possible to irradiate most of the scattered light flux 12' onto the light receiving body 14. In addition, the scattering angle of the luminous flux by the bubble of this invention is
Since the scattering angle is larger than the scattering angle using the electro-optic crystal described above, even if a light shielding filter 15a of the same size is used, the proportion of the scattered light that is shielded is very small.

発熱抵抗体6cに、画像信号に応じた電圧パルス■! 
を勇’ ?1LA98を通じて印加あるいは零にするこ
とにより、それに応じて蒸気泡7の発生あるいは?1°
″i洩が操り返される。その場合、受光媒体14上には
、元スポットの点滅が発生される。レンズ1ろaによっ
て、発熱抵抗体上の点と受光媒体14上の点とを共役関
係にすることによって、発熱抵抗体((Sa、6b・・
・・)近傍に発生した蒸気泡群の1:j;をスポットと
して受光媒体14上に形成できる。
A voltage pulse ■ corresponding to the image signal is applied to the heating resistor 6c!
Yu'? By applying or zeroing through 1LA98, the generation of vapor bubbles 7 or ? 1°
``i leakage is manipulated back. In that case, the original spot blinks on the light-receiving medium 14.The lens 1roa connects the point on the heating resistor and the point on the light-receiving medium 14 in a conjugate relationship. By setting the heating resistor ((Sa, 6b...
) of the vapor bubbles generated in the vicinity can be formed as a spot on the light-receiving medium 14.

第61凹は、同じく前記蒸気泡発生手段B、Mを使用し
た光変調装置の一実施例を示す図で、気泡で散乱されな
い光束を情報光として使用する場合の例である。第6図
(B)においては、蒸気泡発生手段B−Mで変調を受け
ない光束11がレンズ13aで集光される位置には、遮
光板15bが設けられている。この遮光板は、前記光束
11を通過させ、蒸気泡発生手段B−Mで散乱される破
線で示す光束12を遮断する様に、中心部に透孔が設け
られている。蒸気泡による散乱光の大部分を遮光フィル
ター15bにより遮断し、主として非散乱光束11のみ
が遮光フィルター15bを通過する。そして、上記非散
乱のレンズ13aによる結像スポットあるいは遮光フィ
ルター15bと、受光媒体面14とを共役関係にするレ
ンズ13bを配置することにより、受光媒体面14上(
C11元スポットの点滅が発生する。
The 61st concavity is a diagram showing an embodiment of the light modulation device using the vapor bubble generating means B and M, and is an example in which a light beam that is not scattered by bubbles is used as information light. In FIG. 6(B), a light shielding plate 15b is provided at a position where the light beam 11 that is not modulated by the vapor bubble generating means BM is focused by the lens 13a. This light shielding plate is provided with a through hole in the center so as to allow the light beam 11 to pass therethrough and block the light beam 12 shown by the broken line which is scattered by the vapor bubble generating means BM. Most of the light scattered by the vapor bubbles is blocked by the light blocking filter 15b, and mainly only the non-scattered light flux 11 passes through the light blocking filter 15b. Then, by arranging the lens 13b that makes the image spot formed by the non-scattering lens 13a or the light-shielding filter 15b in a conjugate relationship with the light-receiving medium surface 14, the light-receiving medium surface 14 (
Blinking of the C11 original spot occurs.

この様な光変調素子BMの欠点は、発熱抵抗体(6a、
6b、6c、6d)のパターンのエッジ部で散乱された
光束や、発熱抵抗体のノくターンの凹凸によって生じる
絶縁層6の表面の周期的な凹凸がもたらす回折光等が信
号ブCに混入し、信号光のS/N比が悪化することであ
る。
The drawback of such a light modulation element BM is that the heating resistor (6a,
The light beams scattered at the edges of the patterns 6b, 6c, and 6d) and the diffracted light caused by the periodic irregularities on the surface of the insulating layer 6 caused by the irregularities of the notches of the heating resistor are mixed into the signal block C. However, the S/N ratio of the signal light deteriorates.

本発明の目的は、上述した欠点を改良し、S外比の良い
(Fr号元が得られる光変調装置を提供することにある
SUMMARY OF THE INVENTION An object of the present invention is to improve the above-mentioned drawbacks and to provide an optical modulation device that can obtain a good S-outer ratio (Fr element).

本発明に係るブL変調装fδにおいては、入力信号に応
じて発生する気泡が液体内を上昇し)所定の位1・1■
に遅した状態、即ち光束を気泡に照射しても気泡以外で
の散乱光が生じない位置に達した気泡を光束で114射
することにより、S/′N比の優れた信号光を得るもの
である。以下図面を用いて本発明を詳述する。
In the bubble L modulation device fδ according to the present invention, bubbles generated in response to an input signal rise in the liquid to a predetermined position of 1.1
A signal light with an excellent S/'N ratio is obtained by irradiating a bubble with a light beam at a position where it has reached a position where the light beam is delayed to a point where no light is scattered outside the bubble even if the light beam is irradiated onto the bubble. It is. The present invention will be explained in detail below using the drawings.

、1シ4図は本発明に係る光変調装置の一実施例を示−
「図である。光変調素子BMは第1図に示す構成と同じ
であるが、液体M 2が発熱抵抗体(6a。
, 1 and 4 show an embodiment of the optical modulation device according to the present invention.
1. The light modulation element BM has the same configuration as shown in FIG.

6)))の而と直交する方向(y方向)に厚くなってい
る。従って、発熱抵抗体が熱せられて蒸気泡が発生ずる
と、発生した蒸気泡は液面に向って上昇する。21はシ
リンドリカルレンズで、その母線の方向が発熱抵抗体の
配列方向(X方向)と平行な関係になる様に配されてお
り、不図示の光源部からの平行光束22を、前記光変調
素子の液体層2の所定の位置に発熱抵抗体の配列方向(
:を方向)に長い線状の像として形成し、光変調素子を
照明する。この液体層2の所定の位置とは発熱抵抗体の
パターン表面より充分に離れた距離りの位置であり、信
号により生じた蒸気泡で散乱される以外は入射光束は散
乱を受けない位置である。換言すれば、照明光束によシ
発熱抵抗体のパターンを照明することがない様な照明位
置及び光束入射角等の諸条件を選んで、光変調素子を照
明−「るものである。従って、発熱抵抗体(6a、6b
)の表面近傍で発生した蒸気泡は、浮力によって鉛直上
方に上昇し、高さhに到達した時、照明光束22を散I
LLさせる。26は前記シリンドリカルレンズ21とは
直交する方向(y方向)に母線、即ち発熱抵抗体(6a
、6b)の表面に立てた垂線に平行な母線を有す、るシ
リンドリカルレンズで、発熱抵抗体(6a 、6b)の
面と平行な面内においては、13iJ記液層の照明部位
と遮光板24とを光学的に共役な関係に保っている。該
遮光板のX方向の1++・′1Wは、前記t1.層内に
形成される照明光束のX方向の1;イ、がシリンドリカ
ルレンズ26によって結像されろ幅を有している。
6) It becomes thicker in the direction perpendicular to (y direction). Therefore, when the heating resistor is heated and vapor bubbles are generated, the generated vapor bubbles rise toward the liquid level. Reference numeral 21 denotes a cylindrical lens, which is disposed so that the direction of its generatrix is parallel to the arrangement direction (X direction) of the heat generating resistors. The heating resistors are arranged at predetermined positions in the liquid layer 2 in the direction of arrangement (
: is formed as a long linear image in the direction) and illuminates the light modulation element. This predetermined position of the liquid layer 2 is a position sufficiently distant from the pattern surface of the heating resistor, and is a position where the incident light beam is not scattered except by the vapor bubbles generated by the signal. . In other words, the light modulation element is illuminated by selecting various conditions such as the illumination position and incident angle of the light beam such that the pattern of the heat generating resistor is not illuminated by the illumination light beam. Heat generating resistor (6a, 6b
) The vapor bubbles generated near the surface of
Make it LL. 26 is a generating line, that is, a heating resistor (6a
, 6b), which has a generatrix parallel to the perpendicular to the surface of the heating resistor (6a, 6b). 24 is maintained in an optically conjugate relationship. 1++·'1W of the light shielding plate in the X direction is equal to t1. The illumination light flux formed within the layer has a width such that a beam in the X direction can be imaged by the cylindrical lens 26.

ズ・j(気泡による散乱を受けなかった光束は、シリン
ドリカルレンズ2ろを通過後、g元板24によって迦と
られるか、蒸気泡により散乱を受り゛た光束26はシリ
ンドリカルレンズ26ケ通鍋後、その一部は遮光板24
によって是ぎられるが、大部分のIYJJ、乱ブC束は
遮光板24によっては遮ぎられないで5侍行してゆく。
(The light flux that has not been scattered by the bubbles passes through the cylindrical lens 2 and is then collected by the g source plate 24, or the light flux 26 that has been scattered by the vapor bubbles is passed through the 26 cylindrical lenses.) After that, a part of it is covered with a light shielding plate 24.
However, most of the IYJJ and random C bundles continue to travel without being blocked by the light shielding plate 24.

この様にして強度変8周されたイ1i号y己が得られる
。この様に、照明光束22は、発F7j’y抵抗体パタ
ーン等による散乱を受けな℃・為に、S4比のVれた1
5号光となって抽田することが出シぐ ろ 。
In this way, No. 1i, which has been subjected to eight cycles of intensity variation, is obtained. In this way, the illumination light flux 22 is not scattered by the emitter F7j'y resistor pattern, etc., so the S4 ratio V is 1.
It is possible to become No. 5 light and extract the rice.

発、゛、、抵抗体((5a 、 61) 、・・・・)
を複数細密に配列する様な場合には、第5図に示す如く
光度訓素子13へ4の液層2を仕切板27によって仕切
っておくことにより、蒸気泡が上昇の際に隣接する領域
に広がってゆくことを防止でき、S/N比を更に上げる
ことができる。
From, ゛,, resistor ((5a, 61),...)
In the case where a plurality of vapor bubbles are arranged in a finely arranged manner, by separating the four liquid layers 2 to the luminosity control element 13 with a partition plate 27 as shown in FIG. It is possible to prevent the signal from spreading and further increase the S/N ratio.

第6図及び第7図は、本発明に光変調装置の蒸気泡の上
昇運動を利用して2次元画像を得る装置を示す為の図で
ある。第6図に示す如く、1列に並んだ多数の発熱抵抗
体(6a 、 <5b 、・・・・)を用い、平行な光
束28で矩形状領域29を照明する。各発熱抵抗体(”
6a、6b、・・・・)には各々独立した1水平走査に
対応するビデ第16号が印加されており、隣接する抵抗
体には瞬琺する走査線の情報が印加されている。従って
、例えば発熱抵抗体6aに成る1水平走査線に対する情
報信号が経時的に印加すると、この情報信号に対応する
情報が蒸気泡となって上昇する。入射光束28で、この
蒸気泡によって散乱さ、れる光束は対物レンズ30によ
って平行光束にされ、遮光板61によって遮断されない
光束は、紙面に対して垂直な方向に回転軸(不図示)を
有するポリゴンミラーろ2の偏向反射面32aによって
反射され、適切な歪曲収差を持たせた結像レンズ3乙に
よって被走査面ろ4上に集束される。例えば、第7図に
おいて発糸゛に抵抗体6aで発生された蒸気泡で、蒸気
泡B1で散乱される光束は点線で示される様に11に、
蒸気泡B2で発散される光束は実線で示される様に12
に結像される。この時、蒸気泡(Bi、B2)ば絶え1
゛上昇するので、ポリゴンミラーを所定の速度で回転す
ることにより、蒸気泡(B1.B2)による敬乱光束の
集光位置(11,I2)を静止の状1ぷに保っている。
FIGS. 6 and 7 are diagrams showing an apparatus for obtaining a two-dimensional image using the upward movement of vapor bubbles of a light modulation device according to the present invention. As shown in FIG. 6, a rectangular area 29 is illuminated with a parallel light beam 28 using a large number of heating resistors (6a, <5b, . . . ) arranged in a row. Each heating resistor (”
6a, 6b, . . . ) are applied with bidet No. 16 corresponding to one independent horizontal scan, and information on the scanning line that blinks is applied to the adjacent resistors. Therefore, for example, when an information signal for one horizontal scanning line formed by the heating resistor 6a is applied over time, information corresponding to this information signal rises in the form of vapor bubbles. The incident light beam 28 that is scattered by the vapor bubble is made into a parallel light beam by the objective lens 30, and the light beam that is not blocked by the light shielding plate 61 is formed into a polygon whose axis of rotation (not shown) is perpendicular to the plane of the paper. The light is reflected by the deflecting reflection surface 32a of the mirror filter 2, and is focused onto the scanned surface filter 4 by the imaging lens 3B, which has an appropriate distortion aberration. For example, in FIG. 7, in the vapor bubbles generated by the resistor 6a during yarn spinning, the light flux scattered by the vapor bubbles B1 is 11 as shown by the dotted line.
The luminous flux diverged by the vapor bubble B2 is 12 as shown by the solid line.
is imaged. At this time, vapor bubbles (Bi, B2) disappear 1
By rotating the polygon mirror at a predetermined speed, the convergence position (11, I2) of the scattered light beam by the vapor bubbles (B1, B2) is kept stationary.

各発熱抵抗体からの蒸気泡による(?3号元を斯様な光
学系にて被走査面上に集光することにより2次元の画像
を得ることができろ。この発熱抵抗体の配列を2次元化
すれば、同(たな手段で3次元画像を得ることが可能で
ある。
A two-dimensional image can be obtained by condensing the vapor bubbles from each heating resistor onto the scanned surface using such an optical system. If it is converted into two-dimensional images, it is possible to obtain three-dimensional images using the same method.

以上、本発明に係る光変調装置においては、簡易なU5
成でSハ比の優れた信号光が得られ、又、蒸気泡の上昇
運動を利用して2仄元あるいは6次元iニア+i豫を’
IIることも可能である。
As described above, in the light modulation device according to the present invention, the simple U5
It is possible to obtain a signal light with an excellent S ratio by forming a 2-dimensional or 6-dimensional
II is also possible.

【図面の簡単な説明】[Brief explanation of the drawing]

2?、1図及び第2図は1、既提案の蒸気泡による光変
調素子を説明する為の図、第51八)及び第5図(B)
は各々、第1図に示す光変調素子を用いた光変調装置を
示す図、第4図は本発明に係る光変調装置の一実施例を
示す概略図、第5図は本発明に使用する光変調素子の一
実施例を示す図、第6図及び第7図は、本発明に係る光
変調装置を用いて2次元画像を得る為の装置を説明する
為の図。1・・・・透明保護板、2・・・・液体層、6a 、 
6b 。6c、6d・・・・発熱抵抗体、21.23・・・・シ
リンドリカルレンズ、24・・・・遮光板、27・・・
・仕切板。出願人 キャノン株式会社ン!゛−4;℃却〜
2? , 1 and 2 are 1. Diagrams for explaining the already proposed light modulation element using vapor bubbles, 518) and 5 (B).
are diagrams showing a light modulation device using the light modulation element shown in FIG. 1, FIG. 4 is a schematic diagram showing an embodiment of the light modulation device according to the present invention, and FIG. 5 is a diagram showing a light modulation device used in the present invention. FIGS. 6 and 7 are diagrams showing one embodiment of a light modulation element, and are diagrams for explaining an apparatus for obtaining a two-dimensional image using a light modulation device according to the present invention. 1...Transparent protection plate, 2...Liquid layer, 6a,
6b. 6c, 6d... Heat generating resistor, 21.23... Cylindrical lens, 24... Light shielding plate, 27...
・Partition board. Applicant: Canon Co., Ltd.゛-4; ℃ cool~

Claims (2)

Translated fromJapanese
【特許請求の範囲】[Claims](1)入力信号に応じて気泡を発生する手段と、該気泡
が液体内を上昇し所定の位置に到達した所で気泡に光束
を照射する手段と、気泡で散乱された光束を気泡が存在
しない場所を通過した光束とが混在する状態より、いず
れか一方の光束を月スリ出″[手段とをグhえた事を特
徴とする光度lj4 (j’M Ill’ 。
(1) A means for generating a bubble in response to an input signal, a means for irradiating the bubble with a light beam when the bubble rises in the liquid and reaches a predetermined position, and a means for irradiating the light beam scattered by the bubble when the bubble exists. The luminous intensity lj4 (j'M Ill') is characterized by the fact that one of the luminous fluxes is mixed with the luminous flux that has passed through a place where the moon does not exist.
(2) i;if r尼気泡を照射する位置は、気泡以
外の散乱が防止できる位置である酌許請求の範囲第1項
1−1己 ・トスの ブL変調装 11?。
(2) The position at which the bubbles are irradiated is a position where scattering of objects other than bubbles can be prevented.Claim 1, Section 1-1 - Toss Blue L Modulation System 11? .
JP58079908A1983-05-061983-05-06 light modulatorPendingJPS59204027A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP58079908AJPS59204027A (en)1983-05-061983-05-06 light modulator

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP58079908AJPS59204027A (en)1983-05-061983-05-06 light modulator

Publications (1)

Publication NumberPublication Date
JPS59204027Atrue JPS59204027A (en)1984-11-19

Family

ID=13703378

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP58079908APendingJPS59204027A (en)1983-05-061983-05-06 light modulator

Country Status (1)

CountryLink
JP (1)JPS59204027A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4755036A (en)*1985-02-071988-07-05Brother Kogyo Kabushiki KaishaApparatus for deflecting light beam
US4765703A (en)*1985-08-051988-08-23Brother Kogyo Kabushiki KaishaOptical deflector
US4792201A (en)*1986-04-091988-12-20Brother Kogyo Kabushiki KaishaOptical deflector device
US4816912A (en)*1985-06-081989-03-28Brother Kogyo Kabushiki KaishaLaser-beam printer with improved optical deflector
US4841311A (en)*1986-09-201989-06-20Brother Kogyo Kabushiki KaishaLaser beam printer with compactly arranged photosensitive element, laser beam emitting element and reflective element
US4855986A (en)*1985-02-161989-08-08Brother Kogyo Kabushiki KaishaData storage and readout optical head using a single substrate having an electrooptic converging portion for adjustment of the light beam focal point
US4983499A (en)*1986-09-111991-01-08Brother Kogyo Kabushiki KaishaMethod of forming waveguide lens having refractive index distribution

Cited By (7)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4755036A (en)*1985-02-071988-07-05Brother Kogyo Kabushiki KaishaApparatus for deflecting light beam
US4855986A (en)*1985-02-161989-08-08Brother Kogyo Kabushiki KaishaData storage and readout optical head using a single substrate having an electrooptic converging portion for adjustment of the light beam focal point
US4816912A (en)*1985-06-081989-03-28Brother Kogyo Kabushiki KaishaLaser-beam printer with improved optical deflector
US4765703A (en)*1985-08-051988-08-23Brother Kogyo Kabushiki KaishaOptical deflector
US4792201A (en)*1986-04-091988-12-20Brother Kogyo Kabushiki KaishaOptical deflector device
US4983499A (en)*1986-09-111991-01-08Brother Kogyo Kabushiki KaishaMethod of forming waveguide lens having refractive index distribution
US4841311A (en)*1986-09-201989-06-20Brother Kogyo Kabushiki KaishaLaser beam printer with compactly arranged photosensitive element, laser beam emitting element and reflective element

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