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1.发明授权
公开(公告)号：US4988193A
公开(公告)日：1991-01-29
申请号：US317512
申请日：1989-03-01
CPC分类号： G01S3/782 , G01B11/26 , G01C15/002
摘要： Apparatus operable in accordance with the method of the present invention for measuring the angle of incidence of a light beam or plane relative to level comprises a photodetector array for sensing the light and a level mirror preferably comprising a pool of mercury. Optics are provided for transmitting the light to the photodetector array in alignment with the angle of incidence of the light (aligned light) and also after the light has been reflected from the mercury pool (reflected light). A shutter is provided for separating aligned light from reflected light such that distinct signals representative of the two are generated by the photodetector array. The distinct signals are processed by up-counting and down-counting a counter circuit to determine the average centers of light spots representative of the aligned light and the reflected light and the distance between those average centers which is representative of the deviation of the light beam or plane from level.
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公开(公告)号：US4895440A
公开(公告)日：1990-01-23
申请号：US234565
申请日：1988-08-22
申请人： Gary L. Cain , Mark D. Sobottke , Joseph F. Rando
发明人： Gary L. Cain , Mark D. Sobottke , Joseph F. Rando
CPC分类号： G01C15/004 , G01C15/002 , G01S17/105
摘要： A laser beam three dimensional position measurement system includes a laser transmitter mounted at a stationary reference position at a work site and a receiver mounted on a mobile machine at the site. The transmitter produces a laser reference plane by sweeping a laser beam about the transmitter. The receiver includes a retroreflector which intercepts and reflects laser energy back to the transmitter when the laser beam sweeps past the retroreflector. The system also includes at the transmitter a circuit composed of a photodetector, timer, clock and counter. The photodetector senses laser energy reflected back to the transmitter from the retroreflector. The timer modulates the laser beam produced by the transmitter in response to detection of the beam. The counter is connected to the clock and timer, and is enabled by the timer to start counting electrical pulses received from the clock when the beam is modulated. The counter is disabled to stop counting electrical pulses when the modulation is detected. The number of pulses counted by the counter is indicative of the range of the receiver from the transmitter. The orientation of the beam relative to a fixed reference axis at the time reflected laser energy is detected defines the direction of the receiver relative to the transmitter.
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公开(公告)号：US5450429A
公开(公告)日：1995-09-12
申请号：US252948
申请日：1994-06-02
申请人： Daniel R. Klemer , Mark D. Sobottke
发明人： Daniel R. Klemer , Mark D. Sobottke
CPC分类号： H01S3/109 , H01S3/094038
摘要： A solid-state laser comprises a pump diode for generating pump radiation and transmitting the pump radiation into a laser cavity. The pump radiation passes through an entrance mirror and enters a laser gain chip which lases to produce fundamental laser light. The fundamental laser light passes through a harmonic reflector and a first dispersive element and is frequency doubled by a frequency doubler chip to produce harmonic laser light. The harmonic laser light passes through a second dispersive element and impinges on a mirrored surface. A portion of the harmonic laser light passes through the mirrored surface to form the output beam of the laser. The remaining portion of the harmonic laser light is reflected back into the laser cavity. First and second dispersive elements control the phase of the harmonic laser light in the laser cavity such that substantially all of the harmonic laser light is in-phase when the harmonic laser light impinges upon the mirrored surface.
摘要翻译： 固体激光器包括用于产生泵浦辐射并将泵浦辐射传输到激光腔中的泵浦二极管。 泵浦辐射通过入射镜并进入激光增益芯片，激光增益芯片产生基波激光。 基波激光通过谐波反射器和第一色散元件，并被倍频芯片倍频以产生谐波激光。 谐波激光通过第二色散元件并撞击在镜面上。 一部分谐波激光通过镜面，形成激光的输出光束。 谐波激光的剩余部分被反射回激光腔。 第一和第二分散元件控制激光腔中的谐波激光的相位，使得当谐波激光照射在镜面上时，基本上所有的谐波激光都是同相的。
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公开(公告)号：US5440574A
公开(公告)日：1995-08-08
申请号：US253072
申请日：1994-06-02
申请人： Mark D. Sobottke , Jamie N. Lussier
发明人： Mark D. Sobottke , Jamie N. Lussier
CPC分类号： H01S3/025 , H01S3/109 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/0627 , H01S3/094084 , H01S3/09415 , H01S3/1062
摘要： A solid-state laser for generating harmonic laser light substantially at a desired wavelength has a pump diode body made of a first material, which is preferably aluminum, having a first coefficient of expansion and a laser diode mounted in the pump diode body for generating pump energy. A laser body assembly, which is positioned on the pump diode body, is made of a second material, which is preferably steel, having a second coefficient of expansion. The first and second coefficients of expansion of the respective pump diode body and the laser body assembly have a known relationship such that the laser cavity expands and contracts at a particular rate as the temperature of the laser increases and decreases to provide a substantially constant generation of the harmonic laser light. A laser gain chip mounted on an entrance mirror, which forms the back end of a laser cavity, generates fundamental laser light in response to pump energy from the laser diode. The fundamental laser light passes through an active etalon output mirror into a frequency doubler chip which doubles the frequency thereof to produce harmonic laser light. A mirrored surface, which forms a front end of the laser cavity, permits a portion of the harmonic laser light to be emitted from the laser and reflects the remaining portion of the harmonic laser light back to the active etalon output mirror. A control etalon may be provided to suppress undesired light wavelengths in the laser cavity.
摘要翻译： 用于产生基本上所需波长的谐波激光的固体激光器具有由第一材料制成的泵二极管体，该第一材料优选为铝，具有第一膨胀系数和安装在泵二极管体中用于产生泵的激光二极管 能源。 定位在泵二极管主体上的激光体组件由具有第二膨胀系数的第二材料制成，其优选是钢。 相应的泵二极管体和激光体组件的第一和第二膨胀系数具有已知的关系，使得随着激光的温度升高和降低，激光腔以特定的速率膨胀和收缩，从而提供基本恒定的 谐波激光。 安装在形成激光腔的后端的入射镜上的激光增益芯片响应于来自激光二极管的泵浦能量产生基本激光。 基本激光通过有源标准具输出反射镜进入倍频芯片，使其频率加倍，产生谐波激光。 形成激光腔的前端的镜面允许从激光器发出一部分谐波激光，并将余辉部分的谐波激光反射回活性标准具输出镜。 可以提供控制标准具以抑制激光腔中的不期望的光波长。
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公开(公告)号：US5095629A
公开(公告)日：1992-03-17
申请号：US648559
申请日：1991-01-31
申请人： Daniel R. Klemer , Mark D. Sobottke , Ted L. Teach
发明人： Daniel R. Klemer , Mark D. Sobottke , Ted L. Teach
IPC分类号： G01C15/02
摘要： A laser beam target for use with a projector capable of providing a reference laser beam of light traveling in a predetermined path is provided and includes a main body portion having first and second surfaces. A plurality of projections are provided on at least one of the first and second surfaces for directing at least a portion of the reference beam of light into a specific range of vertical viewing angles away from the path of the beam as the light passes from the body, thereby permitting a worker viewing the target to more easily determine when the reference beam of light is in alignment with appropriate reference indicia on the target.
摘要翻译： 提供了一种用于能够提供在预定路径中行进的参考激光束的投影仪的激光束目标，并且包括具有第一表面和第二表面的主体部分。 多个突起设置在第一和第二表面中的至少一个上，用于当光从主体通过时将参考光束的至少一部分引导到远离光束的路径的垂直视角的特定范围内 从而允许工作人员观看目标以更容易地确定参考光束何时与目标上的适当的参考标记对准。
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公开(公告)号：US5465493A
公开(公告)日：1995-11-14
申请号：US253073
申请日：1994-06-02
申请人： Mark D. Sobottke , Daniel R. Klemer
发明人： Mark D. Sobottke , Daniel R. Klemer
CPC分类号： G01C15/002 , G01B11/27 , Y10S33/21
摘要： A pipe alignment system and method is provided for positioning a pipe line along a predetermined path. A light transmitter generates a reference light beam along which the pipe line is to be positioned. The light beam has wavelengths substantially in the green portion of the optical spectrum. An optical target is positioned at one end of each pipe section to assist in alignment thereof. Preferably, the optical target has a green tint which filters the green light from ambient light. The optical target may also have reference indicia thereon to assist in aligning the target with the reference beam of light.
摘要翻译： 提供了一种用于沿着预定路径定位管线的管道对准系统和方法。 光发射器产生参考光束，管线将沿着该光束定位。 光束具有基本上在光谱的绿色部分中的波长。 光学靶位于每个管段的一端，以帮助对准。 优选地，光学目标具有绿色调，其从环境光过滤绿色光。 光学靶还可以具有其上的参考标记，以帮助将靶与参考光束对准。
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公开(公告)号：US5420876A
公开(公告)日：1995-05-30
申请号：US252947
申请日：1994-06-02
IPC分类号： H01S3/0941 , H01S3/109 , H01S3/16 , H01S3/10
CPC分类号： H01S3/109 , H01S3/0941 , H01S3/1611 , H01S3/1671
摘要： An intracavity frequency-doubled solid-state laser uses a Nd:GdVO.sub.4 laser gain chip to generate a beam of visible laser light which may have wavelengths substantially in the green portion of the optical spectrum. A back end of the laser cavity is defined by an entrance mirror while a front end of the laser cavity is defined by a mirrored surface. A laser diode generates pump light which is transmitted through the entrance mirror into the laser gain chip. The laser gain chip, which may be immediately adjacent the entrance mirror, emits fundamental laser light having a wavelength of approximately 1063 nm in response to the pump light. A frequency doubler chip positioned immediately adjacent the laser gain chip doubles the frequency of the fundamental laser light to produce harmonic laser light having a wavelength of substantially 532 nm. In a second embodiment, the frequency doubler chip is immediately adjacent to the entrance mirror and the laser gain chip is immediately adjacent to the frequency doubler chip. The mirrored surface reflects a portion of the harmonic laser light back into the laser cavity and transmits a portion of the harmonic laser light from the laser.
摘要翻译： 腔内倍频固体激光器使用Nd：GdVO4激光增益芯片来产生可能的激光束，其可以具有基本上在光谱的绿色部分中的波长。 激光腔的后端由入射镜限定，而激光腔的前端由镜面表示。 激光二极管产生泵浦光，其通过入射镜传输到激光增益芯片中。 可以紧邻入射镜的激光增益芯片响应于泵浦光发射具有约1063nm波长的基本激光。 紧邻激光增益芯片的倍频芯片将基波激光的频率加倍，产生波长基本为532nm的谐波激光。 在第二实施例中，倍频器芯片紧邻入射镜并且激光增益芯片紧邻倍频器芯片。 镜像表面将一部分谐波激光反射回激光腔并透射来自激光器的一部分谐波激光。
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公开(公告)号：US5479431A
公开(公告)日：1995-12-26
申请号：US252949
申请日：1994-06-02
申请人： Mark D. Sobottke , Daniel R. Klemer
发明人： Mark D. Sobottke , Daniel R. Klemer
CPC分类号： H01S3/0627 , H01S3/082 , H01S3/0604 , H01S3/094038 , H01S3/109
摘要： An active etalon comprising a laser gain chip interposed between an input mirror and an etalon end mirror is provided. In an intracavity frequency-doubled solid-state laser, a pump source emits pump radiation which passes through the input mirror and into the laser gain chip. The laser gain chip lases in response to the pump radiation to produce fundamental laser light. The etalon end mirror reflects a portion of the fundamental laser light back into the laser gain chip and transmits the remaining portion of the fundamental laser light into the laser cavity. The input mirror reflects substantially all of the fundamental laser light into the laser gain chip. The portion of the fundamental laser light which passes through the etalon end mirror may be frequency doubled by a frequency doubler chip and a portion thereof transmitted through the front end of the laser cavity to form the output laser beam.
摘要翻译： 提供了包括插入在输入镜和标准具端镜之间的激光增益芯片的活动标准具。 在腔内频率倍增的固体激光器中，泵浦源发射泵浦辐射，其通过输入反射镜并进入激光增益芯片。 激光增益芯片响应于泵浦辐射而产生基波激光。 标准杆端镜将基本激光的一部分反射回激光增益芯片，并将基本激光的剩余部分透射到激光腔中。 输入镜将基本上所有的基本激光反射到激光增益芯片中。 穿过标准具端镜的基波激光的部分可以被倍频器芯片的频率加倍，并且其部分透射通过激光腔的前端以形成输出激光束。
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公开(公告)号：US4884281A
公开(公告)日：1989-11-28
申请号：US242792
申请日：1988-09-09
IPC分类号： H01S3/094 , H01S3/05 , H01S3/0941 , H01S3/109
CPC分类号： H01S3/025 , H01S3/09415 , H01S3/109 , H01S3/0604 , H01S3/0627
摘要： A compact, laser diode pumped, high efficiency, solid-state laser comprises an output coupler mirror forming a front end of a laser cavity. A back end of the laser cavity is formed by a rear mirror through which emissions from a laser diode pass for pumping a laser chip of stoichiometric lasing material. A frequency doubler chip is positioned immediately adjacent the laser chip to double the frequency of light generated by the laser chip and thereby halve its wavelength. The laser chip is bonded to the frequency doubler chip by coupling material having a refractive index matched to the chips to nearly eliminate reflections at the bonded chip surfaces. Such bonding increases the effective Q of the laser cavity which receives the bonded combination of the laser chip and the doubler chip at a beam waist defined within the laser cavity by means of beam shaping with the laser chip being positioned to receive pumping energy from a laser diode through the rear mirror of the laser cavity. Spiking or peaking of the output laser light is effected by gain switching, phase modulation or by imparting vibratory motion to the bonded combination of the laser chip and the frequency doubler chip.
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公开(公告)号：US4676598A
公开(公告)日：1987-06-30
申请号：US734325
申请日：1985-05-15
CPC分类号： G02B27/144 , G01C15/004
摘要： Apparatus for projecting a laser beam to provide simultaneously a stationary reference beam and a moving reference beam, which rotates in a plane normal to the stationary reference beam, includes a beam diverting arrangement for intercepting a primary beam and for splitting the beam into the two reference beams. The beam diverting arrangement includes first and second deflecting elements which deflect the beam by 90.degree. with respect to the primary beam. A portion of the primary beam, striking the first deflecting element, passes through the element and is shifted slightly by refraction. This shift is compensated by a third beam deflecting element which is fully transmissive, and which refracts the stationary reference beam into alignment with the primary beam. By cutting the first and third deflection elements from the same sheet of material and reorienting the elements appropriately, slight deviation from parallelism in the opposing surfaces of the sheet of material are compensated.
摘要翻译： 用于投射激光束以同时提供静止参考光束的装置和在垂直于固定参考光束的平面中旋转的移动参考光束包括用于拦截主光束并将光束分成两个参考的光束转移装置 梁。 光束转向装置包括相对于主光束将光束偏转90°的第一和第二偏转元件。 撞击第一偏转元件的主光束的一部分穿过元件并通过折射稍微偏移。 该偏移由完全透射的第三光束偏转元件补偿，并且将固定参考光束折射成与主光束对准。 通过从相同的材料片切割第一和第三偏转元件并适当地重新定向元件，补偿了材料片的相对表面中的平行度的轻微偏差。
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