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1. 发明专利

JPH1038512A OPTICAL SCANNING TYPE DISPLACEMENT MEASURING INSTRUMENT 失效
公开(公告)号：JPH1038512A
公开(公告)日：1998-02-13
申请号：JP19586096
申请日：1996-07-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRONO ATSUYUKI , ITO TAKAYASU , HASHIMOTO TAKESHI
IPC分类号： G01B11/00 , G01C3/06
摘要： PROBLEM TO BE SOLVED: To accurately measure the displacement of an object to be measured from a datum surface to a displaced surface by providing a displacement correcting means which corrects the deviation value of the object from a prescribed position in the direction of displacement. SOLUTION: When N pieces of coordinate sequences (Xt, Zt) (t=1 to N) are inputted to a displacement correcting section 62 from a displacement detecting circuit 31, the section 62 calls displacement data Z(j) containing the deviation value of an object to be measured from a prescribed position from the deviation value correction table of a deviation value storing section 61 and obtains coordinate data, Zt-Z(j), indicating the real displacement of the object by subtracting the data Z(j) from displacement data Zt and correcting the obtained data with respect to the movement of a scanning means 4 in the direction of displacement. When the N pieces of coordinate sequences (Xt, Zt) (t=1 to N) are inputted to a scanning position correcting section 72, the section 72 calls the Xr value corresponding to each scanning position data Xt from the scanning position correction table of a position storing section 71 and replaces each scanning position data Xt with each position data Xr. The deviation value of an object from a prescribed scanning position in the scanning direction of a scanning position detecting means 5 is corrected by using N pieces of coordinate data (Xr, Zr).

2. 发明专利

JPH08145659A OPTICAL SCANNING DISPLACEMENT MEASURING APPARATUS 失效
公开(公告)号：JPH08145659A
公开(公告)日：1996-06-07
申请号：JP28101794
申请日：1994-11-15
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HASHIMOTO TAKESHI , OKUMURA MASAYUKI , ITO TAKAYASU , HIRONO ATSUYUKI
IPC分类号： G01B11/00 , G01B11/30 , G01C3/06
摘要： PURPOSE: To block the detrimental movement of frame by locking the frame mechanically through a stop means when a linear motor is uncontrollable due to interruption of driving power supply or the like. CONSTITUTION: Upon abrupt interruption of driving power supply, a projection means 1 and a light receiving means 2 are held, at first, electrically at some position by means of a linear motor 30. A solenoid set signal is then delivered to a solenoid 85 and an actuator 86 is projected by means of a spring 87. Consequently, a movable stop arm 82 rotates about a rotary shaft 80 and a resilient body 83 is engaged with a stopper 39 on the frame 39 thus regulating the movement thereof. A backup power supply is employed in the operation. When the drive power supply is turned on, the solenoid 85 attracts the actuator 86 while resisting against the spring 87 upon the lapse of a preset circuit settling time to unlock the frame 3 mechanically. This structure eliminates abnormal operation when the power supply is turned on or off runaway of the frame 3 can be prevented.

3. 发明专利

JPH06222157A OPTICAL COMPONENT 失效
公开(公告)号：JPH06222157A
公开(公告)日：1994-08-12
申请号：JP1064493
申请日：1993-01-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： ITO TAKAYASU , NAGAOKA AKIRA , HIRONO ATSUYUKI , WATABE YASUAKI , TERAMAE KATSUHIRO , OTOMO HIROAKI
IPC分类号： G01J1/02 , G01J1/04 , G01N21/47 , G01N21/59 , G01V8/12 , G01V9/04
摘要： PURPOSE:To provide an optical component that is provided with emission and reception means and can be prevented from malfunctioning as a result of unnecessary light caused by reflections inside the optical component. CONSTITUTION:An attenuating filter 2 for attenuating light is disposed between a light-emitting element 1 such as a laser diode and a projecting lens 3 which focuses light emitted from the light-emitting element 1. Part of the light emitted from the light-emitting element 1 is reflected at the projecting lens 3 and a front glass 4 as shown by the optical path B, passes through the attenuating filter 2, reaches the light-emitting element 1, is reflected at the front surface of the light-emitting element 1, passes through the attenuating filter 2 and the projecting lens 3 again and is emitted to the outside from the front glass 4. However, unnecessary light emitted outside via the optical path B is appreciably attenuated because it passes through the attenuating filter 2 plural times. As a result, the influence of the unnecessary light becomes negligible and malfunctioning can be prevented.

4. 发明专利

JPH0674759A ADJUSTING METHOD FOR CONDENSER LENS 失效
公开(公告)号：JPH0674759A
公开(公告)日：1994-03-18
申请号：JP22663692
申请日：1992-08-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRONO ATSUYUKI , NAGAOKA AKIRA , ITO TAKAYASU , OTOMO HIROAKI
IPC分类号： G02B7/02 , G01C3/06
摘要： PURPOSE:To obtain a method for adjusting a condenser lens in which focusing can be determined easily by simply monitoring the quantity of received light. CONSTITUTION:Quantity of received light (I1+I2) is constant irrespective of the size of image point on a position detecting element 5. A shade 6 having a slit 7 is interposed between a condenser lens 4 and the position detecting element 5. When the image point is large, significant quantity of light is shielded at the part other than the slit 7 and the quantity of received light (I1+I2) decreases. When the image point is small, light is not shielded by the shade 6 and the quantity of received light (I1+I2) is maximized. Since the size of image point on the position detecting element 5 depends on the position of the condenser lens 4, image is formed such that the area of image point is minimized by moving the condenser lens 4 while monitoring the quantity of received light.

5. 发明专利

JPH0613763A ELECTRIC EQUIPMENT WATERPROOF CASE 失效
公开(公告)号：JPH0613763A
公开(公告)日：1994-01-21
申请号：JP16658392
申请日：1992-06-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OTOMO HIROAKI , NAGAOKA AKIRA , ITO TAKAYASU , HIRONO ATSUYUKI
IPC分类号： H05K5/06
摘要： PURPOSE:To prevent a watertight packing from coming off at assembly so as to assemble a waterproof case easily even if the watertight packing is complicated and constricted in shape. CONSTITUTION:A lid 2 is screwed to a case main body where a laser displacement gauge is housed to cover the opening of the case through a watertight packing 3 of nearly the same shape as the external shape of the opening. An insertion hole 17 where a screw is inserted is made in the constricted part 25 of the watertight packing 3, where the screw fastens the lid 2 to the case main body. The screw which fastens the lid 2 to the case main body is inserted into the insertion hole 17, whereby the watertight packing 3 is prevented from coming off from the lid 2. Therefore, even if the watertight packing 3 is complicated and constricted in shape, the watertight packing 3 is prevented from getting out of place when a waterproof case is assembled, so that the waterproof case is enhanced in assembling properties.

6. 发明专利

JPH0611340A OPTICAL DISPLACEMENT SENSOR 失效
公开(公告)号：JPH0611340A
公开(公告)日：1994-01-21
申请号：JP16659092
申请日：1992-06-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAOKA AKIRA , HIRONO ATSUYUKI , ITO TAKAYASU , OTOMO HIROAKI
IPC分类号： G01B11/00 , G01C3/06 , G01S7/48 , G01S7/481 , G01S17/02 , G01S17/08
摘要： PURPOSE:To shut off interference made by another sensor in proximity, effectively and at a low cost. CONSTITUTION:An optical displacement sensor is equipped with a light- projecting part which projects a light to an object of detection and with a light-sensing part which senses a reflected light from the object of detection. The inner wall of a lens-barrel 21 in the light-sensing part is provided with a reflective wall 23 being waved in the direction of a light-sensing axis or in the direction of the circumference of the lens-barrel 21. The reflected light by another sensor in proximity is turned to the direction of not proceeding to a light-sensing element.

7. 发明专利

JPH0552554A OPTICAL DISPLACEMENT SENSOR 失效
公开(公告)号：JPH0552554A
公开(公告)日：1993-03-02
申请号：JP24280891
申请日：1991-08-27
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： NAGAOKA AKIRA , YANO MANABU , ITO TAKAYASU , ISHIDA YOSUKE , HIRONO ATSUYUKI
IPC分类号： G01C3/06 , G02B7/02 , G02B7/32
摘要： PURPOSE:To prevent erroneous detection by light reflected on the inner circumferetial face of a light receiving mirror cylinder in the case where an object to be detected abnormally approches the sensor. CONSTITUTION:A light receiving reflection mirror cylinder 1 for forming on an inner circumferential face 1a a gentle reflection recess face 1b for condensing light reflected from an object OB to be detected existing in a position beyond specified effective measurement range to outside the detection effective range S of the light receiving area 3a of a position detection element 3 is equipped.

8. 发明专利

JPH0261603A LIGHT INCIDENCE COUPLING DEVICE FOR OPTICAL WIRING BOARD 失效
公开(公告)号：JPH0261603A
公开(公告)日：1990-03-01
申请号：JP21292188
申请日：1988-08-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KANBE YOSHIAKI , ITO TAKAYASU , TANIGUCHI KENJI
IPC分类号： G02B6/32
摘要： PURPOSE:To uniform light incident on the light incidence surface of an optical transmission line by composing a lens for coupling of a plano-convex lens, arranging the lens so that its flat surface contacts the light incidence surface, and arranging a light emitting element composed of a light emitting diode nearby the focus of the lens for coupling. CONSTITUTION:Light emitted by the light emitting element 2 is made incident on the base end part of an optical waveguide 1 whose tip part branches into plural parts through the coupling lens 3 and propagated to respective branch optical waveguides 1a, 1b..., and in this optical incidence coupling device for the optical wiring board, the coupling lens 3 is composed of the plano-convex lens which has the flat surface on its light incidence side and a spherical surface on the side of the light emitting element 2. Then the lens is arranged having the flat surface in contact with the light incidence surface and the light emitting element 2 composed of the light emitting diode is arranged nearby the focus of the coupling lens 3. Consequently, the light incident on the light incidence surface of the optical transmission line can be uniformed and the distribution ratio of the light energy propagated to the branch optical transmission lines is set as designed.

9. 发明专利

JP2001235323A DISPLACEMENT MEASURING APPARATUS AND MEASURING METHOD THEREFOR 失效
公开(公告)号：JP2001235323A
公开(公告)日：2001-08-31
申请号：JP2000048085
申请日：2000-02-24
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： ITO TAKAYASU , KANBE YOSHIAKI , OTOMO HIROAKI , KAMIYA ATSUSHI , ASAI MAKIO , TAKEDA KATSU
IPC分类号： G01B11/00 , G01C3/06
摘要： PROBLEM TO BE SOLVED: To provide a displacement measuring apparatus whose response speed is increased. SOLUTION: The displacement measuring apparatus A includes a receiving lens 3 for causing a light beam diffused and reflected by the surface of an object B for measurement to converge on the receiving surfaces of CCD elements 4a and 4b, a half mirror 9 for splitting the light beam impinging thereon via the receiving lens 3, and two CCD elements 4a and 4b allowing spot light beams split by the half mirror 9 to impinge on their respective receiving surfaces. A plurality of light receiving cells are arranged in a line on the receiving surface of each of the CCD elements 4a and 4b, and the CCD elements 4a and 4b are arranged so that of the plurality of light receiving cells, those in the same positional relationship are illuminated with the spot light. Before the output action of a detection signal by one of the CCD elements 4a (4b) ends, a CPU 5 initiates the output action of the detection signal by the other CCD element 4b (4a) and detects the position of the spot light from the detection signals of both CCD elements.

10. 发明专利

JPH0943470A DEVICE AND METHOD FOR ADJUSTING POSITION OF OPTICAL PARTS 失效
公开(公告)号：JPH0943470A
公开(公告)日：1997-02-14
申请号：JP19078595
申请日：1995-07-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HASHIMOTO TAKESHI , NISHIKAWA NAOYUKI , ITO TAKAYASU
IPC分类号： G02B7/02
摘要： PROBLEM TO BE SOLVED: To smoothly move optical parts which is mounted on an optical base so that it may be freely slid and to accurately and smoothly execute the positioning adjustment of the optical parts by installing an oscillator for imparting oscillation to the optical base. SOLUTION: A projecting lens 2 is mounted in a nearly V-shaped groove lens insertion part 5 so that it may be freely slidable in the longitudinal direction of the insertion part 5, a photodetecting lens 3 is also mounted in a lens insertion part 6 in the same way. And in order to smoothly execute the positioning adjustment of the lenses 2 and 3, the oscillators 92 for separately positioning respective lenses 2 and 3 at the prescribed positions of the lens insertion parts 5 and 6 are installed on the rear side of the projecting part 80 and on the rear side of the photodetecting part 81 of the optical base 4. As for the oscillator 92, the slidable surface part coming into contact with the lens 3 (lens 2) of the optical base 4 is constituted of a surface wave motor 92a for imparting the oscillatory wave with an elliptical orbit. By the oscillatory wave, the lens 3 is moved in the horizontal direction, so that the lens 3 is accurately positioned on the prescribed position.

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