公开(公告)号：US5477374A

公开(公告)日：1995-12-19

申请号：US125668

申请日：1993-09-23

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G02B26/10 ,  G02B26/12 ,  G02F1/33 ,  H04N1/113 ,  G02B26/08

CPC classification number: G02B26/127

Abstract: An optical beam scanning apparatus which includes: an optical modulator which emits an optical beam in a direction corresponding to the frequency of an inputted signal; scanning device for scanning the optical beam; a scanning lens; a storage device which stores data for correcting the displacement of the optical beam passing through the scanning lens caused by an aberration of the scanning lens for each scanning position of the optical beam; and a device which, based on the data stored in the storage device, alters the frequency of the signal to be inputted to the optical modulator for each scanning position of the optical beam so as to correct the displacement of the optical beam caused by the aberration of the scanning lens.

Abstract translation: 一种光束扫描装置，包括：光调制器，其在与输入信号的频率相对应的方向上发射光束; 用于扫描光束的扫描装置; 扫描透镜; 存储装置，其存储用于校正通过扫描透镜的光束的位移的数据，由扫描透镜的每个扫描位置的扫描位置引起的像差; 以及基于存储在存储装置中的数据，对于光束的每个扫描位置改变要输入到光调制器的信号的频率的装置，以便校正由像差引起的光束的位移 的扫描透镜。

公开(公告)号：US5079568A

公开(公告)日：1992-01-07

申请号：US599576

申请日：1990-10-18

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G02F1/11 ,  G06K15/12

CPC classification number: G06K15/1271

Abstract: A simultaneous multi-beam optical modulator device which has first modulators for amplitude modulating a plurality of carrier waves according to a plurality of input signals to produce a plurality of modulated signals and an audio optical device for separating an incoming beam of light into a plurality of sub-beams and for, at the same time, optically modulating the sub-beam upon receiving the modulated signals from their respective first modulators, is provided, further comprising an output device for storing indicator signals corresponding to the number of input signals fed to the first modulators and for selecting from these stored signals a signal corresponding to the number of the input signals to the first modulators, a digital/analog converter for converting the signal transmitted from the output device into an analog output which is used to varies the intensity of output light, and a second modulator for amplitude modulating the plural modulated signals transmitted from the first modulators according to the analog output of the digital/analog converter. Accordingly, the intensity of a light output from the audio optical device can be maintained constant.

公开(公告)号：US07019813B2

公开(公告)日：2006-03-28

申请号：US09973812

申请日：2001-10-11

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G03B27/58 ,  H04N1/04

CPC classification number: H04N1/0621 ,  H04N1/0607

Abstract: A light beam modulated with image information is outputted from a light source and supplied to a switcher, which guides the light beam to one of exposure heads that is selected by the switcher. The light beam is applied from the selected exposure head to a photosensitive medium that is mounted on a partly cylindrical inner circumferential surface of a support to record an image thereon. The light beam can continuously be applied to the photosensitive medium from the exposure heads that are alternatively selected as facing the photosensitive medium, so that the image can efficiently be recorded on the photosensitive medium.

公开(公告)号：US5528412A

公开(公告)日：1996-06-18

申请号：US531191

申请日：1995-09-19

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G02B26/10 ,  G02B26/12 ,  G02F1/33 ,  H04N1/113 ,  G02B26/08

CPC classification number: G02B26/127

Abstract: An optical beam scanning apparatus which includes: an optical modulator which emits an optical beam in a direction corresponding to the frequency of an inputted signal; scanning device for scanning the optical beam; a scanning lens; a storage device which stores data for correcting the displacement of the optical beam passing through the scanning lens caused by an aberration of the scanning lens for each scanning position of the optical beam; and a device which, based on the data stored in the storage device, alters the frequency of the signal to be inputted to the optical modulator for each scanning position of the optical beam so as to correct the displacement of the optical beam caused by the aberration of the scanning lens.

公开(公告)号：US5475523A

公开(公告)日：1995-12-12

申请号：US91007

申请日：1993-07-14

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G02B26/12 ,  G02B27/00 ,  G02B26/08

CPC classification number: G02B26/124 ,  G02B26/123 ,  G02B27/0031

Abstract: A light beam recording device. A light beam irradiated from a light beam irradiating device is scanned onto an object to be illuminated, which is provided in a vicinity of a focal position, while being focussed by a scanning optical system. A converging member is disposed on an optical path between the light beam irradiating device and the scanning optical system, and converges a light beam which is incident on the converging member. An optical path changing device is disposed in a vicinity of a converging position of a light beam which is converged by the converging member, and changes an optical path of the light beam.

Abstract translation: 一种光束记录装置。 从光束照射装置照射的光束被扫描在被扫描光学系统聚焦的焦点位置附近的被照明物体上。 会聚构件设置在光束照射装置和扫描光学系统之间的光路上，并且会聚入射在会聚构件上的光束。 光路改变装置设置在由会聚构件会聚的光束的会聚位置附近，并且改变光束的光路。

公开(公告)号：US4990763A

公开(公告)日：1991-02-05

申请号：US343313

申请日：1989-04-26

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G02B26/10 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23 ,  H04N1/401

CPC classification number: H04N1/053 ,  G06K15/1214 ,  H04N1/4015 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04777

Abstract: A laser beam recorder arranged to record data with dots of a constant size, constant pitch and constant density, irrespective of possible differences in scanning speed between the middle and peripheral portions of a recording medium. The timing of irradiating the recording medium with the light beam is precipitated and the duration of the irradiation with the light beam is shortened as the scanning speed increases, whereby the dot size and dot pitch can be made constant irrespective of variation in the scanning speed. Further, the light beam is intensified as the scanning speed increases. Though the duration of the irradiation with the light beam is reduced with the increasing scanning speed, the amount of energy for recording one dot is maintained constant by intensifying the light beam as described, whereby the dot density can be maintained constant.

Abstract translation: 一种激光束记录器，被布置成记录具有恒定尺寸，恒定间距和恒定密度的点的数据，而与记录介质的中间部分和周边部分之间的扫描速度的可能差异无关。 沉淀出用光束照射记录介质的时间，随着扫描速度的增加，光束照射的持续时间被缩短，从而可以使点大小和点间距恒定，而与扫描速度的变化无关。 此外，随着扫描速度的增加，光束增强。 尽管用光束照射的持续时间随着扫描速度的增加而减小，但如上所述通过增强光束来保持记录一个点的能量的量保持恒定，由此可以保持点密度恒定。

公开(公告)号：US06456315B1

公开(公告)日：2002-09-24

申请号：US09566083

申请日：2000-05-09

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: B41J2700

CPC classification number: H04N1/0635 ,  G02B26/101 ,  H04N1/0607 ,  H04N1/0678 ,  H04N2201/0454

Abstract: A laser beam emitted from a laser beam generator is modulated by a laser beam modulator depending on an image to be recorded, and then converted into a linearly polarized light beam having a predetermined direction of polarization by a polarization switcher. The linearly polarized light beam is then converted into a circularly polarized light beam by a quarter-wave plate. The circularly polarized light beam is converted by a quarter-wave plate of a rotatable unit into a linearly polarized light beam, which is applied to a polarization beam splitter. If the linearly polarized light beam is an s-polarized light beam, then the laser beam is reflected by the polarization beam splitter toward a recording medium. If the linearly polarized light beam is a p-polarized light beam, then the laser beam passes through the polarization beam splitter. The laser beam passes through a quarter-wave plate and is reflected by a convex mirror and then by the polarization beam splitter toward the recording medium. The laser beam is thus applied substantially in its entirety to the recording medium for thereby recording a two-dimensional image efficiently on the recording medium.

Abstract translation: 根据要记录的图像，由激光束发生器发射的激光束由激光束调制器调制，然后通过偏振切换器转换成具有预定的偏振方向的线偏振光束。 然后将线偏振光束通过四分之一波片转换为圆偏振光束。 圆偏振光束由可旋转单元的四分之一波片转换成被施加到偏振分束器的线偏振光束。 如果线偏振光束是s偏振光束，则激光束被偏振分束器朝向记录介质反射。 如果线偏振光束是p偏振光束，则激光束通过偏振分束器。 激光束通过四分之一波片，并被凸面镜反射，然后被偏振分束器反射到记录介质。 因此，激光束基本上全部应用于记录介质，从而在记录介质上有效地记录二维图像。

公开(公告)号：US5461601A

公开(公告)日：1995-10-24

申请号：US279430

申请日：1994-07-25

Applicant: Hidetoshi Shinada ,  Kiichi Kato ,  Katsuto Sumi

Inventor： Hidetoshi Shinada ,  Kiichi Kato ,  Katsuto Sumi

IPC: G02B26/12 ,  G02B27/00 ,  G03B27/52 ,  G03B27/70 ,  G11B7/00

CPC classification number: G02B26/124 ,  G02B26/123 ,  G02B27/0031

Abstract: A light beam recording device. A light beam irradiated from a light beam irradiating device is scanned onto an object to be illuminated, which is provided in a vicinity of a focal position, while being focused by a scanning optical system. A converging member is disposed on an optical path between the light beam irradiating device and the scanning optical system, and converges a light beam which is incident on the converging member. An optical path changing device is disposed in a vicinity of a converging position of a light beam which is converged by the converging member, and changes an optical path of the light beam.

Abstract translation: 一种光束记录装置。 从光束照射装置照射的光束被扫描在被扫描光学系统聚焦的焦点位置附近的被照明物体上。 会聚构件设置在光束照射装置和扫描光学系统之间的光路上，并且会聚入射在会聚构件上的光束。 光路改变装置设置在由会聚构件会聚的光束的会聚位置附近，并且改变光束的光路。

公开(公告)号：US5258856A

公开(公告)日：1993-11-02

申请号：US775131

申请日：1991-10-11

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: G06K15/12 ,  H04N1/40

CPC classification number: G06K15/1271 ,  G06K2215/111

Abstract: A method and apparatus for scanning and exposing in which m laser beams which are arranged in an array so that part of a adjacent laser beams overlap on the photosensitive surface, are main-scanned in a direction intersecting the line along which the laser beams are arranged, while being sub-scanned in the direction in which they are arrayed, to carry out a two-dimensional exposure. The power of at least one of the mth laser beam for the Nth main scanning and the first laser beam for the (N+1)th main scanning is changed, or the distance between the mth laser beam for the Nth main scanning and the first laser beam for the (N+1)th main scanning is changed, to correct density unevenness at the overlapping portion of the mth and the first laser beams.

公开(公告)号：US4945315A

公开(公告)日：1990-07-31

申请号：US263767

申请日：1988-10-28

Applicant: Hidetoshi Shinada

Inventor： Hidetoshi Shinada

IPC: H01S5/00 ,  G02B6/42 ,  H01S3/00 ,  H01S5/50

CPC classification number: H01S3/005 ,  G02B6/4206 ,  G02B6/4209 ,  H01S5/50

Abstract: A method of and an apparatus for projecting an incident laser beam into a broad contact-type light amplifier. The laser beam is projected after the intensity distribution of the laser beam is made to coincide with the electromagnetic field distribution in the fundamental mode of the light amplifier. Since only the fundamental mode is used as the propagation mode of the light amplifier, a Gaussian beam amplified by the light amplifier is emitted. Consequently, the laser beam emitted from the light amplifier can be made into a several-micron spot by condensing the laser beam to a diffraction limit.

Abstract translation: 一种用于将入射激光束投射到宽接触型光放大器中的方法和装置。 在激光束的强度分布与光放大器的基本模式中的电磁场分布一致之后投射激光束。 由于仅使用基本模式作为光放大器的传播模式，所以发射由光放大器放大的高斯光束。 因此，从光放大器发射的激光束可以通过将激光束聚焦到衍射极限来制成几微米的光点。