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1. 发明授权

US3757250A Electron beam laser 失效
标题翻译：电子束激光
公开(公告)号：US3757250A
公开(公告)日：1973-09-04
申请号：US3757250D
申请日：1970-06-01
申请人： MINNESOTA MINING & MFG
发明人： PACKARD J , CAMPBELL D , TAIT W
IPC分类号： H01S3/0959 , H01S5/062 , H01S3/09 , H01S3/18
CPC分类号： H01S3/0959 , H01S5/06243
摘要： A longitudinal-direction laser. The laser device comprises a source of electrons and a light resonant cavity which includes a direct band-gap semiconductor crystal having a pair of spaced, opposing, smooth faces. When a beam of electrons of at least a predetermined energy and current density is impinged upon one of the crystal faces, laser emission produced within an active region of the crystal is emitted from at least one of the crystal faces in a direction generally longitudinal to the direction of the beam of electrons. When laser emission is produced, the active region depth is less than the crystal thickness in the direction normal to the opposing faces.

2. 发明授权

US3786438A Optical read-only memory system including a cathode ray tube 失效
标题翻译：光学只读存储器系统，包括阴极射线管
公开(公告)号：US3786438A
公开(公告)日：1974-01-15
申请号：US3786438D
申请日：1972-06-26
申请人： MINNESOTA MINING & MFG
发明人： PACKARD J
IPC分类号： G11C13/04 , G11C11/30
CPC分类号： G11C13/048
摘要： A system for optically reading in parallel a plurality of bits contained in a predetermined pattern in a data array on a planar data mask containing a plurality of data arrays. A conical beam of coherent light produced from a selected location on a planar laser material screen of a cathode ray tube is addressed to a given data array, thereby causing an image representative of said given data array to be projected onto a detector array containing a plurality of detectors in the same predetermined pattern. The planar laser material screen is positioned parallel to the planar datamask. The addressed given data array is the data array positioned within the cone of light and in an optical path including the detector array and the selected light emitting location on the screen.
摘要翻译：一种用于在包含多个数据阵列的平面数据掩模上并行地光学地读取包含在数据阵列中的预定图案中的多个位的系统。从阴极射线管的平面激光材料屏幕上的选定位置产生的相干光的锥形光束被寻址到给定的数据阵列，从而使表示所述给定数据阵列的图像投影到包含多个的检测器。平面激光材料屏幕平行于平面数据面板定位。寻址的给定数据阵列是位于光锥内的数据阵列和包括检测器阵列和屏幕上所选发光位置的光路中的数据阵列。

3. 发明授权

US3836224A Holdgram memory readout system 失效
标题翻译： HOLDGRAM存储器读取系统
公开(公告)号：US3836224A
公开(公告)日：1974-09-17
申请号：US30332672
申请日：1972-11-03
申请人： MINNESOTA MINING & MFG
发明人： STREHLOW W , LEE P , PACKARD J
IPC分类号： H01S3/00 , G03H1/26 , G11B7/00 , G11B7/0065 , G11C13/04 , G02B27/00
CPC分类号： G11C13/042
摘要： A two-dimensionally scannable electron beam laser is used to address a planar hologram array memory, having a plurality of holograms in a two-dimensional array, from each of which holograms a given order diffracted primary or conjugate image is produced at a common location when any said hologram in the array is addressed by a laser beam at an angle normal to the memory plane. A detector is positioned at the common location for receiving the image produced from each of the holograms in the array.
摘要翻译：使用二维可扫描电子束激光器来寻址平面全息图阵列存储器，其具有二维阵列中的多个全息图，其中每个全息图在给定次级衍射的初级或共轭图像在公共位置处产生，阵列中的任何所述全息图都以与存储器平面垂直的角度的激光束寻址。检测器位于公共位置，用于接收从阵列中的每个全息图产生的图像。

4. 发明授权

US3747018A Platelet semiconductive laser 失效
标题翻译： PLATELET半导体激光器
公开(公告)号：US3747018A
公开(公告)日：1973-07-17
申请号：US3747018D
申请日：1972-03-16
申请人： MINNESOTA MINING & MFG
发明人： PACKARD J , DIERSSEN G , TAIT W , CAMPBELL D
IPC分类号： H01S3/0959 , H01S3/09 , H01S3/06 , H01S3/18
CPC分类号： H01S3/0959
摘要： A laser device comprising a naturally grown single crystal semiconductor platelet having a power conversion efficiency of at least 10 2 percent and a means for producing and impinging upon the crystal a beam of electrons of energy less than 75 KeV.
摘要翻译：一种包括具有至少10±2％的功率转换效率的天然生长的单晶半导体血小板的激光装置，以及用于产生和照射能量小于75KeV的电子束的装置。

5. 发明授权

US3715162A Free exciton indirect transition laser 失效
标题翻译：免费EXCITON间接过渡激光
公开(公告)号：US3715162A
公开(公告)日：1973-02-06
申请号：US3715162D
申请日：1971-04-19
申请人： MINNESOTA MINING & MFG
发明人： TAIT W , WEIHER R , CAMPBELL D , PACKARD J
IPC分类号： H01S3/0959 , G03B27/52
CPC分类号： H01S3/0959
摘要： A method and apparatus for selecting a direct band gap semiconductor crystal for use as a room temperature operable laser material. The crystal is selected when its emission spectrum is characterized by a series of peaks separated in energy by the energy of one longitudinal optical phonon and when the zero intensity extrapolation point on the low energy side of the highest energy peak of the series is below the lowest energy exciton peak of its reflection spectrum by an amount equal to the energy of one longitudinal optical phonon. The emission and reflection spectra are produced at 77*K.
摘要翻译：一种用于选择用作室温可操作的激光材料的直接带隙半导体晶体的方法和装置。当其发射光谱的特征在于通过一个纵向光学声子的能量在能量上分离的一系列峰值时，并且当该系列的最高能量峰值的低能量侧上的零强度外推点低于最低其反射光谱的能量激子峰值等于一个纵向光学声子的能量。发射和反射光谱在77°K下产生。

6. 发明专利

DE69726607T2 未知
公开(公告)号：DE69726607T2
公开(公告)日：2004-06-09
申请号：DE69726607
申请日：1997-04-08
申请人： MINNESOTA MINING & MFG
发明人： PACKARD J , ROSSINI J
IPC分类号： A61B7/02 , A61F11/08 , H04R1/10 , H04R25/00
摘要： An ear tip having a central portion and two end portions is described. The end portions each have ear contacting surfaces that are sized and shaped to contact the ear of the user. The ear tips are easily cleaned. The ear tips also contribute to user comfort and convenience.

7. 发明专利

DE69631803T2 未知
公开(公告)号：DE69631803T2
公开(公告)日：2005-01-27
申请号：DE69631803
申请日：1996-10-22
申请人： MINNESOTA MINING & MFG
发明人： DIEKEN P , MOE J , PACKARD A , PACKARD J , REEDER W , TURGEON A
IPC分类号： A61B7/02 , A61B7/04
摘要： An ergonometric chestpiece for a stethoscope adapted to receive auscultatory sounds from a body and adapted to be coupled to an earpiece for a user. The chestpiece is adapted to be grasped by a thumb and at least one finger of the user. The chestpiece has a bottom surface which is generally planar and is adapted to be placed near the body for receiving the auscultatory sounds. The chestpiece has an upper portion opposite the bottom surface. The upper portion has a raised center portion defining left and right indented gripping surfaces which form recesses defined by the left and right indented gripping surfaces and by a surface generally parallel to but opposite the bottom surface. The left and right indented gripping surfaces are adapted to receive the thumb and at least one finger of the user, respectively. The indented gripping surfaces have indented impressions adapted to be easily, securely and comfortably grasped by the thumb and fingers of the user. The indented gripping surfaces are each further defined by a protruding edge on the top surface of the raised center portion which prevent the fingers of the user from slipping upward and thus prevent the chestpiece from slipping out of the user's hand. The raised center portion form a physical stop to prevent the thumb and fingers of the user from slipping forward and contacting the body when the thumb and the at least one finger grasp the raised center of the upper portion. The left and right walls may be concave. The ergonometric chestpiece may be generally circular and the left and right walls are cylindrically concave around axes generally orthogonal to the bottom surface. The top surface of the raised center portion may be sloped with respect to the bottom surface, the top surface being closer to the bottom surface at the front of the chestpiece than at the rear of the chestpiece.

8. 发明专利

DE69631803D1 未知
公开(公告)号：DE69631803D1
公开(公告)日：2004-04-08
申请号：DE69631803
申请日：1996-10-22
申请人： MINNESOTA MINING & MFG
发明人： DIEKEN P , MOE J , PACKARD A , PACKARD J , REEDER W , TURGEON A
IPC分类号： A61B7/02 , A61B7/04
摘要： An ergonometric chestpiece for a stethoscope adapted to receive auscultatory sounds from a body and adapted to be coupled to an earpiece for a user. The chestpiece is adapted to be grasped by a thumb and at least one finger of the user. The chestpiece has a bottom surface which is generally planar and is adapted to be placed near the body for receiving the auscultatory sounds. The chestpiece has an upper portion opposite the bottom surface. The upper portion has a raised center portion defining left and right indented gripping surfaces which form recesses defined by the left and right indented gripping surfaces and by a surface generally parallel to but opposite the bottom surface. The left and right indented gripping surfaces are adapted to receive the thumb and at least one finger of the user, respectively. The indented gripping surfaces have indented impressions adapted to be easily, securely and comfortably grasped by the thumb and fingers of the user. The indented gripping surfaces are each further defined by a protruding edge on the top surface of the raised center portion which prevent the fingers of the user from slipping upward and thus prevent the chestpiece from slipping out of the user's hand. The raised center portion form a physical stop to prevent the thumb and fingers of the user from slipping forward and contacting the body when the thumb and the at least one finger grasp the raised center of the upper portion. The left and right walls may be concave. The ergonometric chestpiece may be generally circular and the left and right walls are cylindrically concave around axes generally orthogonal to the bottom surface. The top surface of the raised center portion may be sloped with respect to the bottom surface, the top surface being closer to the bottom surface at the front of the chestpiece than at the rear of the chestpiece.

9. 发明专利

DE69726607D1 未知
公开(公告)号：DE69726607D1
公开(公告)日：2004-01-15
申请号：DE69726607
申请日：1997-04-08
申请人： MINNESOTA MINING & MFG
发明人： PACKARD J , ROSSINI J
IPC分类号： A61B7/02 , A61F11/08 , H04R1/10 , H04R25/00
摘要： An ear tip having a central portion and two end portions is described. The end portions each have ear contacting surfaces that are sized and shaped to contact the ear of the user. The ear tips are easily cleaned. The ear tips also contribute to user comfort and convenience.

10. 发明专利

SE359977B 未知
公开(公告)号：SE359977B
公开(公告)日：1973-09-10
申请号：SE410369
申请日：1969-03-24
申请人： MINNESOTA MINING & MFG
发明人： CAMPBELL D , PACKARD J , TAIT W , WEIHER R
IPC分类号： H01S5/30 , H01S3/18

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