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公开(公告)号：US3678574A
公开(公告)日：1972-07-25
申请号：US3678574D
申请日：1970-11-09
Applicant: BELL TELEPHONE LABOR INC
CPC classification number: G02F1/0305 , G02F2201/505 , Y10T29/42 , Y10T29/49002
Abstract: Acoustical ringing which results from piezoelectric effects in an electro-optical modulator is suppressed by mounting the modulator crystal between massive, acoustically absorbent, support members which also provide an electric circuit interface for applying electric signals to the modulator. Solder provides such an absorbent mounting for a lithium tantalate electrooptical modulator crystal. Both solder support members are applied during the same heating interval and permitted to cool simultaneously. In one embodiment the solder application is accomplished in a first step wherein mounds of solder are applied adjacent to the crystal at a first temperature and in a second step wherein additional solder is applied at a lower temperature between the crystal and the solder mounds.
Abstract translation: 通过将调制器晶体安装在块状吸声性支撑构件之间来抑制由电光调制器中的压电效应引起的声响，其也提供用于向调制器施加电信号的电路接口。 焊料为钽酸锂电光调制晶体提供了这种吸收装置。 两个焊料支撑构件在相同的加热间隔期间被施加并允许同时冷却。 在一个实施例中，焊料应用是在第一步骤中实现的，其中焊料堆在第一温度下与晶体相邻地施加，在第二步骤中，在较低温度下在晶体和焊料堆之间施加另外的焊料。
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2.发明授权Electrooptic modulator utilizing phase retardation effect of internal reflections 失效电子调制器利用内部反射的相位延迟效应
公开(公告)号：US3694052A
公开(公告)日：1972-09-26
申请号：US3694052D
申请日：1971-02-01
Applicant: BELL TELEPHONE LABOR INC
Inventor： ORTEL WILLIAM CHARLES GORMLEY
CPC classification number: G02F1/03 , G02F2201/17
Abstract: A lithium tantalate crystal is configured to have plural surfaces for producing sufficient internal reflection of a light beam to effect approximately a complete phase reversal of one component of the electric vector, which vector is transverse to the direction of propagation, of the beam within the crystal between two separate electrooptic modulation operations on the same beam within that crystal.
Abstract translation: 钽酸锂晶体被配置为具有用于产生足够的光束内反射的多个表面，以实现晶体内的光束的电子矢量的一个分量的一个分量（该矢量横向于传播方向）的完全相位反转 在该晶体内的相同光束上的两个独立的电光调制操作之间。
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公开(公告)号：US3695875A
公开(公告)日：1972-10-03
申请号：US3695875D
申请日：1970-10-27
Applicant: BELL TELEPHONE LABOR INC
Inventor： ORTEL WILLIAM CHARLES GORMLEY
CPC classification number: G03F1/54
Abstract: A METHOD FOR PRODUCING HIGH CONTRAST PHOTOGRAPHIC IMAGES. FROM THE LOW CONTRAST ORIGINAL, A FIRST COPY IS MADE ON HIGH CONTRAST FILM, THEREBY REVERSING THE IMAGE. EXPOSURE TIME IS CONTROLLED IN ORDER TO UNDEREXPOSE THE LIGHTEST AREAS WHICH SHOULD HAVE BEEN OPAQUE IN THE ORIGINAL. FROM THIS COPY, A SECOND COPY IS MADE ON HIGH CONTRAST FILM, AGAIN REVERSING THE IMAGE. AGAIN, THE LIGHTEST AREAS OF THE FIRST COPY WHICH SHOULD HAVE BEEN OPAQUE ARE UNDEREXPOSED BY CONTROLLING THE EXPOSURE TIME. THESE AREAS CORRESPOND TO THE DAREST AREAS IN THE ORIGINAL TRANSPARENCY WHICH SHOULD HAVE BEEN LIGHT. BY CORRECTLY CONTROLLING THE EXPOSURE TIMES OF THESE TWO STEPS, A TRANSPARENCY IS PRODUCED WITH NEARLY BINARY DENSITY SCALE, THUS PRODUCING A HIGH CONTRAST MASK SUITABLE FOR PHOTOETCHING.
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