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公开(公告)号：USD369112S
公开(公告)日：1996-04-23
申请号：US31945
申请日：1994-12-09
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公开(公告)号：US06623429B2
公开(公告)日：2003-09-23
申请号：US09992875
申请日：2001-11-06
IPC分类号： A61B316
CPC分类号： A61B3/0058 , A61B3/0091 , A61B3/152 , A61B3/165 , A61B2560/0456
摘要： A hand-held non-contact tonometer comprises a housing having a handle portion for enclosing a rechargeable D.C. power source and an upper head portion for enclosing alignment and tonometric measurement systems of the tonometer. An operator can directly view the patient's eye along an optical axis extending through the head portion of the housing, and an instructional display image is superimposed with the directly viewed image of the eye to guide the operator in X-Y-Z alignment based on data supplied by an afocal position detection system. A transceiver for wireless data exchange and a recharging support stand are also provided.
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公开(公告)号：US5301004A
公开(公告)日：1994-04-05
申请号：US850890
申请日：1992-03-13
CPC分类号： G01M11/0235
摘要： Optical properties of a lens, including localized defects, are determined by analyzing the refracted image produced by transmitting a beam of light through an aperture and a lens to be tested. The image is reflected onto a light sensitive detecting surface. Information obtained from the light detecting surface is digitized and sent to an Image Processing Unit which calculates the optical properties of the lens. The aperture may consist of a single shaped opening or alternatively a plurality of concentric, annular rings. Correction lenses may be employed, either permanently or selectively, to alter the refracted beam before the beam intersects the detecting surface.
摘要翻译： 通过分析透射光束通过孔和待测试的透镜产生的折射图像来确定透镜的光学特性，包括局部缺陷。 图像被反射到光敏检测表面上。 从光检测表面获得的信息被数字化并发送到计算透镜的光学特性的图像处理单元。 孔可以由单个形状的开口或可选地多个同心的环形环组成。 修正透镜可以永久地或选择性地用于在光束与检测表面相交之前改变折射光束。
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4.发明授权Instructive display for assisting in centering an optical path element on a path 失效辅助显示器，用于协助路径上的光路元件居中
公开(公告)号：US5446274A
公开(公告)日：1995-08-29
申请号：US199703
申请日：1994-02-22
CPC分类号： A61B3/152 , G01M11/0221
摘要： A polar or vector display provides an operator of an optical instrument with a symbolic instruction regarding the direction and amount of motion required to center an optical element on a chosen path.
摘要翻译： 极性或矢量显示为光学仪器的操作者提供关于使所选择的路径上的光学元件居中所需的运动的方向和量的符号指令。
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公开(公告)号：US06726625B2
公开(公告)日：2004-04-27
申请号：US10117510
申请日：2002-04-05
申请人： David A. Luce
发明人： David A. Luce
IPC分类号： A61B316
CPC分类号： A61B3/165
摘要： A non-contact tonometer of a type having a cylinder, a piston received by the cylinder for axially directed movement relative to the cylinder, and a driven member for causing the piston to move relative to the cylinder in a compression stroke to generate a fluid pulse for transfiguring a cornea is improved by decoupling the piston from the driven member to eliminate the need for critical alignment between the driven member and piston and allow the piston to be self-aligning with respect to the cylinder.
摘要翻译： 一种具有气缸，由气缸容纳的用于相对于气缸轴向移动的活塞的非接触式眼压计，以及用于使压缩行程使活塞相对于气缸移动的从动构件，以产生流体脉冲 用于变形角膜的改进是通过将活塞与从动构件脱离而消除对从动构件和活塞之间的临界对准的需要，并允许活塞相对于气缸自对准。
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公开(公告)号：US06679842B2
公开(公告)日：2004-01-20
申请号：US10122807
申请日：2002-04-15
申请人： David A. Luce
发明人： David A. Luce
IPC分类号： A61B316
CPC分类号： A61B3/165
摘要： An apparatus for calibrating a non-contact tonometer comprises an electronic eye having a damped pressure sensor for receiving a tonometer air pulse and providing a pressure signal in response to the air pulse, and an applanation simulator connected to the pressure sensor for providing a pseudo-applanation event when the pressure signal reaches a predetermined level corresponding to a known IOP measurement standard. A method for calibrating a non-contact tonometer using the inventive calibration apparatus is also described.
摘要翻译： 用于校准非接触式眼压计的装置包括电子眼，其具有用于接收眼压计空气脉冲并且响应于空气脉冲提供压力信号的阻尼压力传感器，以及连接到压力传感器的压平模拟器， 当压力信号达到对应于已知IOP测量标准的预定水平时的压平事件。 还描述了使用本发明的校准装置校准非接触式眼压计的方法。
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7.发明授权Method for optimizing piston diameter in a non-contact tonometer, and non-contact tonometer having fluid pump designed by said method 有权用于优化非接触式眼压计中的活塞直径的方法，以及具有由所述方法设计的流体泵的非接触式眼压计公开(公告)号：US06616609B2
公开(公告)日：2003-09-09
申请号：US10010323
申请日：2001-11-08
申请人： Bruce Siskowski , David A. Luce
发明人： Bruce Siskowski , David A. Luce
IPC分类号： A61B505
CPC分类号： A61B3/165
摘要： A fluid pump system of a non-contact tonometer is numerically simulated through its compression stroke by a simulation software program. System dynamic behavior is modeled for a variety of piston diameters, whereby an optimal piston diameter or range of piston diameters is selected in view of stoke length limitations and target applanation pressure requirements.
摘要翻译： 非接触眼压计的流体泵系统通过模拟软件程序通过其压缩冲程进行数值模拟。 考虑到行程长度限制和目标压平压力要求，系统动态行为是针对各种活塞直径进行建模的，从而选择最佳活塞直径或活塞直径范围。
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公开(公告)号：US5954645A
公开(公告)日：1999-09-21
申请号：US54723
申请日：1998-04-03
申请人： David A. Luce
发明人： David A. Luce
IPC分类号： A61B3/16
CPC分类号： A61B3/165
摘要： A non-contact tonometer is improved by providing a non-telecentric applanation detection system enabling relaxation of instrument alignment requirements during testing. In a preferred embodiment, the applanation detection system comprises an emitter for directing an obliquely incident beam of light for reflection by the cornea, and a detector array having a plurality of photosensitive detector array elements located to receive corneally reflected light. The detector array generates a plurality of signal curves for light energy received at different locations on the array as a function of time, and the signal curves are evaluated to determine an optimal signal curve which best indicates the moment of applanation.
摘要翻译： 通过提供非远心压平检测系统，可以在测试期间放宽仪器对准要求，从而改善非接触式眼压计。 在优选实施例中，压平检测系统包括用于引导倾斜入射的光束以用于角膜反射的发射器，以及具有多个感光探测器阵列元件的检测器阵列，其位于接收角膜反射光。 检测器阵列产生多个用于在阵列上不同位置处接收的光能的信号曲线作为时间的函数，并且评估信号曲线以确定最佳指示压平时刻的最佳信号曲线。
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公开(公告)号：US4365533A
公开(公告)日：1982-12-28
申请号：US695042
申请日：1976-06-11
申请人： Melville Clark, Jr. , David A. Luce
发明人： Melville Clark, Jr. , David A. Luce
CPC分类号： G10H1/188 , G10H1/057 , G10H1/34 , G10H2210/211 , G10H2210/401 , G10H2210/411 , G10H2230/175 , G10H2230/181 , G10H2230/185 , G10H2230/191 , G10H2230/195 , G10H2230/225 , G10H2250/475
摘要： A new, performer played, real time, multitonal, multitimbral musical instrument consists of speed and force sensitive keys in which time domain multiplexing is used to find and associate one and only one tone generator, not otherwise busy, with any key that is depressed. The sound generator disclosed can provide very realistic simulations of the flute, oboe, trumpet, French horn, trombone through the provision of various types of modulations in amplitude and frequency of the various partials, as is characteristic of each instrument simulated, and filtered noise. Glissandi are provided from one note to another and are controlled from the pair of keys involved by the relative pressure with which they are depressed. For the nonpercussive tonalities, the speed with which a key is depressed, which is determined by differentiating the force, may be used to cause the attack transient to behave in a manner very characteristic of the instrument being simulated. The force with which a key is depressed is determined from the rate of rise of the potential across a capacitive keying system excited through a resistor. Percussive sound generators are provided also; the intensity of the note generated by these generators is determined by the speed with which the associated key is depressed. The force with which the associated key is depressed can be used to determine the rate of automatic repetition of the note. The speed with which a key is depressed can also be used for nonpercussive instruments to alter the character of the attack transient.
摘要翻译： 一个新的，表演者演奏的，实时的，多人的，多音乐的乐器包括速度和力敏感键，其中时域复用用于发现和关联一个和唯一一个音调发生器，而不是其他的忙碌与任何按下的键。 公开的声发生器可以通过提供各种偏差的幅度和频率的各种类型的调制来提供对长笛，双簧管，喇叭，法国号，长号的非常逼真的模拟，如模拟的每个乐器的特征和滤波的噪声。 Glissandi从一个音符提供给另一个音符，并且由相关压力所涉及的一对键控制，并且它们被压下。 对于非敲击性色调，可以使用通过区分力来确定键被按压的速度，以使得攻击瞬态以正在被模拟的仪器的非常特征的方式表现。 键被按下的力由电阻通过电阻激励的电容键控系统的电位上升率确定。 还提供冲击声发生器; 这些发生器产生的音符的强度由相关键被按下的速度决定。 关联键被按下的力可用于确定音符的自动重复速率。 按键的速度也可以用于非打击乐器来改变攻击瞬态的特征。
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公开(公告)号：US4099439A
公开(公告)日：1978-07-11
申请号：US588508
申请日：1975-06-19
申请人： David A. Luce
发明人： David A. Luce
CPC分类号： G10H1/0555 , Y10S84/07
摘要： An electronic musical instrument has a keyboard equipped with apparatus for developing a voltage in response to the momentum of operated keys of the keyboard, which voltage is employed to control the amplitude of the sounds produced in response to each key depression. The amplitude is dependent partially upon the momentum of the key depression and partially upon the amount of time since the previous depression of the same key. An envelope generator operates in response to depression of a key and has a charge circuit for controlling attack and decay of the envelope. The discharge circuit is controlled partially by the pitch of the note selected by the depression of any given key of the keyboard. The envelope produced by the envelope generator controls a unit which functions as a combined modulator and filter, closing a path between an audio source and an output system and varying the width of the band-pass provided for the signal from the audio source in response to the amplitude of the envelope. The wave shape of the signal supplied to the output system is also modified in response to the amplitude of the envelope.
摘要翻译： 电子乐器具有配备有用于响应于键盘的操作键的动量来显影电压的装置的键盘，该电压用于控制响应于每个键按压而产生的声音的幅度。 幅度部分取决于键按压的动量，部分取决于自上一次按下同一个键之后的时间量。 信封发生器响应于按键的操作，并且具有用于控制信封的攻击和衰减的充电电路。 放电电路部分地由通过键盘的任何给定键的按下所选择的音符的间距来控制。 由信封发生器产生的信封控制用作组合调制器和滤波器的单元，闭合音频源和输出系统之间的路径，并响应于来自音频源的信号改变提供的带通宽度 信封的幅度。 提供给输出系统的信号的波形也响应于信封的幅度而被修改。
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