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公开(公告)号：US3814495A
公开(公告)日：1974-06-04
申请号：US31862072
申请日：1972-12-26
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Inventor： WALTER A
Abstract: A scanning device with rotatable plane mirror surfaces movable about the radius of curvature of a cylindrical mirror and positioned to pass through the focal plane of the cylindrical mirror. A light beam relayed from the movable plane mirror is reflected from the cylindrical mirror along a path parallel to the optical axis of the device for each successive position of the plane mirror.
Abstract translation: 扫描装置，其具有可旋转的平面镜表面，可围绕圆柱形反射镜的曲率半径移动并定位成穿过圆柱形反射镜的焦平面。 从平面镜的每个连续位置，从可动平面镜中继的光束从平行于装置的光轴的路径从圆柱形反射镜反射。
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公开(公告)号：SE7608509L
公开(公告)日：1977-01-30
申请号：SE7608509
申请日：1976-07-28
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Abstract: Bottle color identification apparatus with a light beam passing through the bottle, in which the light beam passing through the bottle is supplied to a spectral decomposition arrangement which emits a signal characteristic of the bottle color.
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公开(公告)号：SE7801247L
公开(公告)日：1978-08-04
申请号：SE7801247
申请日：1978-02-02
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Inventor： WALTER A
Abstract: A photoelectronic apparatus, in which a photoelectric convertor (the operational convertor) receives a beam of light and produces an output signal proportional to the intensity of the light received, is protected against the effects of unwanted light by providing an auxiliary photoelectric convertor arranged in the vicinity of the operational convertor. The auxiliary convertor detects the presence of unwanted light and its output is subtracted from that of the operational convertor and the resultant signal is then examined to distinguish between events occuring in the light beam and events simulated by the unwanted light.
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公开(公告)号：SE7612494L
公开(公告)日：1977-05-12
申请号：SE7612494
申请日：1976-11-10
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Inventor： WALTER A
Abstract: A light curtain for scanning rectangular openings with an oscillating light beam originating in a corner of the opening. A photo-detector is placed in the same corner. Retroreflectors, such as triple reflectors are placed on adjacent sides of the opening which are opposite the light source for reflecting light back to the photo-sensor. Above a critical reflection angle for the retroreflector, a plane mirror is provided which directs light from the source to the retroreflector on the adjacent side so that light impinging on the mirror at an angle exceeding the critical angle is received by the adjacent retroreflector at an angle that is within the critical angle. Consequently, such light is reflected via the plane mirror back to the photo-sensor. The light can be modulated to facilitate the monitoring of the area encompassed by the opening.
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公开(公告)号：SE442349B
公开(公告)日：1985-12-16
申请号：SE7705784
申请日：1977-05-17
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Abstract: An optical apparatus for use in conjunction with spherically shaped concave mirrors for substantially eliminating aberrations in the reflections from such mirror. The mirror cooperates with a light source or a light receiver placed in the vicinity of but off-set relative to the natural focal point of the mirror. A plane parallel, transparent plate is placed between the mirror and the light source or receiver and it has a size so as to intercept light rays between the mirror and the light source or receiver and which respectively result in or are caused by light beams oriented parallel to the optical axis of the mirror. Use of the invention for additionally correcting astigmatism and chromatic aberrations caused by spherical mirrors is disclosed. Also disclosed is the use of the invention in connection with large spherical mirrors forming part of light curtain arrangements.
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Patent Agency Ranking
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公开(公告)号：SE414968B
公开(公告)日：1980-08-25
申请号：SE7608509
申请日：1976-07-28
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Abstract: Bottle color identification apparatus with a light beam passing through the bottle, in which the light beam passing through the bottle is supplied to a spectral decomposition arrangement which emits a signal characteristic of the bottle color.
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公开(公告)号：SE410363B
公开(公告)日：1979-10-08
申请号：SE7612494
申请日：1976-11-10
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Inventor： WALTER A
Abstract: A light curtain for scanning rectangular openings with an oscillating light beam originating in a corner of the opening. A photo-detector is placed in the same corner. Retroreflectors, such as triple reflectors are placed on adjacent sides of the opening which are opposite the light source for reflecting light back to the photo-sensor. Above a critical reflection angle for the retroreflector, a plane mirror is provided which directs light from the source to the retroreflector on the adjacent side so that light impinging on the mirror at an angle exceeding the critical angle is received by the adjacent retroreflector at an angle that is within the critical angle. Consequently, such light is reflected via the plane mirror back to the photo-sensor. The light can be modulated to facilitate the monitoring of the area encompassed by the opening.
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公开(公告)号：BE876345A
公开(公告)日：1979-09-17
申请号：BE2057805
申请日：1979-05-18
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Inventor： WALTER A
IPC: G08B13/00 , G08B13/18 , G08B13/181 , G08B13/183 , G08B13/184 , G08B , G02B
Abstract: A transmitting lens and a receiving lens are arranged alongside each other on one narrow side of a shallow housing so that a pencil beam of light transmitted by the transmitting lens and reflected by a separate reflector is received by the receiving lens and concentrated onto a photoelectric converter. Interruption of the pencil beam of light results in interruption of the output signal from the photoelectric converter and is detected and used to actuate an alarm signaller located within the housing. The alarm signaller, which is preferably a buzzer, is connected with the housing to form a single constructional unit. The optics and electronics are conveniently mounted on a circuit board which is conveniently located within the housing and secured by a resilient cushion.
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公开(公告)号：SE7705784L
公开(公告)日：1977-11-19
申请号：SE7705784
申请日：1977-05-17
Applicant: SICK OPTIK ELEKTRONIK ERWIN
Abstract: An optical apparatus for use in conjunction with spherically shaped concave mirrors for substantially eliminating aberrations in the reflections from such mirror. The mirror cooperates with a light source or a light receiver placed in the vicinity of but off-set relative to the natural focal point of the mirror. A plane parallel, transparent plate is placed between the mirror and the light source or receiver and it has a size so as to intercept light rays between the mirror and the light source or receiver and which respectively result in or are caused by light beams oriented parallel to the optical axis of the mirror. Use of the invention for additionally correcting astigmatism and chromatic aberrations caused by spherical mirrors is disclosed. Also disclosed is the use of the invention in connection with large spherical mirrors forming part of light curtain arrangements.
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