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    • 2. 发明授权
    • Optical wavelength converting apparatus
    • 光波长转换装置
    • US5381430A
    • 1995-01-10
    • US233932
    • 1994-04-28
    • Nobuharu NozakiTakashi Adachi
    • Nobuharu NozakiTakashi Adachi
    • G02F1/37H01S3/02H01S3/04H01S3/042H01S3/109H01S3/10
    • H01S3/109G02F1/37H01S3/025H01S3/0405H01S3/042H01S3/09415
    • An optical wavelength converting apparatus comprises an optical wavelength converting device, which is constituted of a crystal of a nonlinear optical material and converts a wavelength of an incident fundamental wave into a different wavelength, a holder, which is constituted of a metal and to which the optical wavelength converting device is adhered and secured, and a device for adjusting the temperature of the region containing the optical wavelength converting device. The optical wavelength converting device is secured to the holder by adhering only the surface of the optical wavelength converting device to the holder, which surface is normal to the direction of a crystallographic axis that has a coefficient of thermal expansion most different from the coefficient of thermal expansion of the metal constituting the holder among the coefficients of thermal expansion of the crystallographic axes of the optical wavelength converting device. The optical wavelength converting device is thus reliably secured to the holder and prevented from breaking or being distorted due to a change in environmental temperature, and the accuracy, with which the temperature of the optical wavelength converting device is adjusted, is kept high.
    • 光波长转换装置包括由非线性光学材料的晶体构成并将入射基波的波长转换为不同波长的光波长转换装置,由金属构成的保持器, 光波长转换装置被粘附和固定,以及用于调节包含光波长转换装置的区域的温度的装置。 光波长转换装置通过仅将光波长转换装置的表面粘附到保持器固定到保持器,该保持器的表面垂直于具有与热系数最不同的热膨胀系数的结晶轴方向 构成保持器的金属在光波长转换装置的结晶轴的热膨胀系数中的膨胀。 因此,光波长转换装置被可靠地固定到保持器,并且防止由于环境温度的变化而导致的断裂或变形,并且将光学波长转换装置的温度调节的精度保持为高。
    • 9. 发明授权
    • Light beam scanning read-out apparatus and recording apparatus
    • 光束扫描读出装置和记录装置
    • US4778991A
    • 1988-10-18
    • US912062
    • 1986-09-26
    • Nobuharu NozakiHiroshi NishiharaToshiaki Suhara
    • Nobuharu NozakiHiroshi NishiharaToshiaki Suhara
    • G02B6/12G11B7/0025G11B7/12G11B19/20H04N1/12G02F1/11
    • G11B19/20G02B6/12004G11B7/0025G11B7/1245H04N1/12H04N1/1275
    • A light beam scanning read-out apparatus and a light beam scanning recording apparatus comprise an optical system for converting light guided inside of an optical waveguide into collimated optical wave, a device for generating surface acoustic waves which deflect the guided optical wave, a drive circuit for operating the surface acoustic wave generating device so that the frequency of the surface acoustic waves changes continuously, and a focusing grating coupler for converging the guided and deflected optical wave at a space outside of the optical waveguide. The read-out apparatus further comprises a sub-scanning device for moving a read-out original exposed to the converted light with respect to the optical waveguide, and a photodetector for detecting light obtained from the read-out original. The recording apparatus further comprises a sub-scanning device for moving a light-sensitive material exposed to the converged light with respect to the optical waveguide, and a modulator for modulating the guided optical wave with an image signal.
    • 光束扫描读出装置和光束扫描记录装置包括用于将光波导内的光转换为准直光波的光学系统,用于产生使导向光波偏转的表面声波的装置,驱动电路 用于操作表面声波产生装置,使得表面声波的频率连续变化;以及聚焦光栅耦合器,用于在光波导的外侧的空间处会聚被引导和偏转的光波。 读出装置还包括用于移动相对于光波导暴露于转换后的光的读出原稿的子扫描装置和用于检测从读出的原稿获得的光的光电检测器。 记录装置还包括用于移动相对于光波导暴露于会聚光的感光材料的副扫描装置和用图像信号调制被引导光波的调制器。
    • 10. 发明授权
    • Image forming method using laser beam
    • 使用激光束的成像方法
    • US5415978A
    • 1995-05-16
    • US181255
    • 1994-01-13
    • Masahiro AsamiNobuharu NozakiYoji Okazaki
    • Masahiro AsamiNobuharu NozakiYoji Okazaki
    • B41J2/525G03B27/73G03C1/00G03C1/10G03C5/08G03C7/00G03C7/30H04N1/50
    • H04N1/50G03C7/3041Y10S430/146Y10S430/164
    • An image is formed in a color photosensitive material through scanning exposure by using at least one semiconductor laser excited solid laser including a semiconductor laser, a non-linear optical element and means for controlling the temperature thereof as a light source for producing a laser beam. The laser beam is modulated by an external modulator in accordance with the image to be formed. Among the combinations of photosensitive layers and laser beams, at least two laser beam light sources are such that a laser beam has a wavelength falling within .+-.20 nm from the maximum wavelength in the spectral sensitivity distribution of the corresponding photosensitive layer. Each photosensitive layer has a spectral sensitivity distribution with a peak width of up to 40 nm. The method enables to form an image in a conventional silver halide photosensitive material having spectral sensitivity in the visible region using a cost effective light source, the resulting image having color generated to a satisfactory density, free of a density variation, and hence of high quality.
    • 通过使用包括半导体激光器,非线性光学元件的至少一个半导体激光激光固体激光器和用于控制其温度作为用于产生激光束的光源的装置的扫描曝光,在彩色感光材料中形成图像。 激光束根据要形成的图像由外部调制器调制。 在感光层和激光束的组合中,至少两个激光束光源使得激光束的波长在对应的感光层的光谱灵敏度分布中与最大波长相差+/- 20nm。 每个感光层具有峰值宽度高达40nm的光谱灵敏度分布。 该方法能够使用成本有效的光源在可见光区域中具有光谱灵敏度的常规卤化银感光材料形成图像,所得到的图像产生的密度达到令人满意的密度,没有密度变化,因此具有高质量 。