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    • 4. 发明授权
    • Spectral imaging system and method employing an acousto-optic tunable
filter for wavelength selection with increased field of view brightness
    • 光谱成像系统和方法采用声光可调滤波器进行波长选择,增加视野亮度
    • US5828451A
    • 1998-10-27
    • US940543
    • 1997-09-30
    • Peter A. BellusDennis R. Suhre
    • Peter A. BellusDennis R. Suhre
    • G01J3/12G01J3/28
    • G01J3/1256G01J3/2823
    • An acousto-optic tunable filter (AOTF) has one or more optical wavelength passbands dependent on the frequency or frequencies of a radio frequency signal applied thereto. A radio frequency generator applies the radio frequency signal under computer control of the RF frequency so that the radio frequency signal has one or more preselected frequency components. An input optics system directs incident object or scene light to the AOTF. A first polarizing element passes to the AOTF only image light which is polarized in a first direction. A second polarizing element receives output image light from the AOTF and passes only image light which is polarized in a direction orthogonal to the first direction. The image light passed by the second polarizing element is detected by a camera. An output optics system focusses image light passed by the second polarizer on an image plane of the camera, and an image corresponding to the detected image light is recorded. An image processor receives recorded image data for processing.
    • 声光可调谐滤波器(AOTF)具有取决于施加到其上的射频信号的频率或频率的一个或多个光学波长通带。 无线电频率发生器在RF频率的计算机控制下施加射频信号,使得射频信号具有一个或多个预选频率分量。 输入光学系统将入射物体或场景光引导到AOTF。 第一偏振元件传递到仅在第一方向上偏振的仅AOTF图像光。 第二偏振元件从AOTF接收输出图像光,并且仅通过在与第一方向正交的方向上偏振的图像光。 由第二偏振元件通过的图像光由相机检测。 输出光学系统将通过第二偏振器的图像光聚焦在相机的图像平面上,并且记录与检测到的图像光对应的图像。 图像处理器接收用于处理的记录图像数据。
    • 9. 发明授权
    • Phenoxazine and phenothiazine dyes and leuco forms thereof
    • 吩恶嗪和吩噻嗪染料及其无色形式
    • US4622395A
    • 1986-11-11
    • US656460
    • 1984-10-01
    • Peter A. BellusRoger A. Mader
    • Peter A. BellusRoger A. Mader
    • B41M5/136C07D265/38C07D279/18C09B19/00C09B21/00G03C1/498C07D279/24C07D279/30
    • C07D265/38B41M5/136C07D279/18C09B19/00C09B21/00G03C1/49854
    • Novel phenoxazine and phenothiazine dyes have the formula ##STR1## wherein X can be --S-- or --O--;each R can be the same or different and is independently selected from(1) hydrogen,(2) an unsubstituted aryl or alkyl group or these groups substituted by up to four groups selected from alkyl, alkoxy, cyano, hydroxy, halogen, nitro, mercapto, alkylsulfonyl, arylsulfonyl, and Z, where Z is as defined below, wherein all alkyl and alkoxy groups have 1 to 20 carbon atoms; and(3) Z, wherein Z can be ##STR2## wherein each Q can be the same or different and is independently selected from(1) hydrogen,(2) an unsubstituted aryl or alkyl group or these groups substituted by up to four groups selected from alkyl, alkoxy, cyano, hydroxy, halogen, nitro, mercapto, alkylsulfonyl, arylsulfonyl, and Z, where Z is as defined above, wherein all alkyl and alkoxy groups have 1 to 20 carbon atoms; andR' is the same or different and is independently selected from hydrogen, halogen, alkyl or alkoxy of 1 to 6 carbon atoms or these groups substituted by up to 3 halogen atoms; andA is an anion;with the proviso that R and L can have up to a total of 5 carbonyl and sulfonyl groups, and with the proviso that the average value of a Taft Constant and of a Hammett Constant for the two R groups on at least one 3- or 7-position nitrogen atom is greater than 1.0 for a Taft Constant and greater than +0.1 for a Hammett Constant.
    • 新的吩恶嗪和吩噻嗪染料具有式(I),其中X可以是-S-或-O-; 每个R可以相同或不同,并且独立地选自(1)氢,(2)未取代的芳基或烷基或被至多四个选自烷基,烷氧基,氰基,羟基,卤素,硝基, 巯基,烷基磺酰基,芳基磺酰基和Z,其中Z如下所定义,其中所有烷基和烷氧基具有1至20个碳原子; 和(3)Z,其中Z可以是< IMAGE>其中每个Q可以相同或不同,并且独立地选自(1)氢,(2)未取代的芳基或烷基或被至多四个基团取代的这些基团 选自烷基,烷氧基,氰基,羟基,卤素,硝基,巯基,烷基磺酰基,芳基磺酰基和Z,其中Z如上定义,其中所有烷基和烷氧基具有1至20个碳原子; 并且R'相同或不同,独立地选自氢原子,1〜6个碳原子的卤素,烷基或烷氧基或被至多3个卤素原子取代的这些基团; A是阴离子; 条件是R和L可以具有总共5个羰基和磺酰基,条件是在至少一个3-或7个上的两个R基团的Taft常数和Hammett常数的平均值 - 位置氮原子对于Taft常数大于1.0,对于Hammett常数大于+0.1。