WO2008099939A1 - 光分割素子、距離測定装置 - Google Patents
光分割素子、距離測定装置 Download PDFInfo
- Publication number
- WO2008099939A1 WO2008099939A1 PCT/JP2008/052583 JP2008052583W WO2008099939A1 WO 2008099939 A1 WO2008099939 A1 WO 2008099939A1 JP 2008052583 W JP2008052583 W JP 2008052583W WO 2008099939 A1 WO2008099939 A1 WO 2008099939A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- dichroic mirror
- optical system
- splitting element
- target object
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
- G01C3/06—Use of electric means to obtain final indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
- G01C3/06—Use of electric means to obtain final indication
- G01C3/08—Use of electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
Definitions
- the present invention relates to a light splitting element and a distance measuring device.
- a distance measuring device using light waves irradiates a target object with light, receives reflected or scattered light from the target object as measurement light, and measures the distance to the target object based on this. is there.
- a distance measuring device includes a collimation optical system for collimating a target object.
- the collimation optical system, a transmission optical system for irradiating the target object with measurement light, and received light from the target object are used.
- the receiving optical system that receives light is a coaxial optical system, and the light from the target object is divided into collimated light, that is, transmitted light and received light, that is, reflected light, by a light splitting element with a diced mouth coating. It has been known.
- the dike mouth and the thick coat are visible. It is preferable to have a high transmittance with respect to light in the region (about 400 to 700 nm). For example, if the measurement light is configured to use light in the near-infrared region (approximately 780 to 100 nm) that is outside the visible region, the dichroic coat has a high transmittance for light in the visible region. (For example, see Japanese Patent Application Laid-Open No. 11-110090 2).
- the collimation position on the target object is A distance measuring device configured to perform confirmation.
- the dichroic coat applied to the light splitting element has a characteristic that the wavelength range of light that can be split changes as the incident angle of light changes to the coating surface.
- the difference in the incident angle of the light beam at the center of the optical axis and the peripheral light beam to the dichroic coat becomes large, and the aforementioned characteristics become more prominent. End up.
- an object of the present invention is to provide a light splitting element in which a change in wavelength separation performance depending on the incident angle of light is suppressed, and a distance measuring device including the same. To do.
- the first aspect of the present invention has a dichroic mirror surface that reflects light in the first wavelength band and transmits light in the second wavelength band, and has a peripheral portion of the dichroic mirror surface.
- the present invention provides a light splitting element characterized in that the reflecting surface has a high reflectivity with respect to light in the first wavelength band.
- the reflecting surface has a ring shape provided over a part or the entire periphery of the dichroic mirror surface.
- the light splitting element is a dichroic prism, and the wavelength separation surface of the dichroic prism is composed of the dichroic mirror surface and the reflecting surface. desirable.
- the light splitting element is a dichroic mirror
- the wavelength separation surface of the dichroic mirror is composed of the dichroic mirror surface and the reflecting surface.
- the light in the second wavelength band is visible light.
- the reflecting surface is made of a metal film.
- the second aspect of the present invention provides a transmission optical system for irradiating a target object with measurement light, a reception optical system for receiving reception light from the target object, and for collimating the target object
- the distance measuring apparatus having a collimating optical system that forms an image of collimating light from the target object
- at least the receiving optical system and the collimating optical system are coaxial optical systems that share an objective lens.
- the coaxial optical path includes a dichroic mirror surface that reflects and guides the received light to the receiving optical system, and transmits the collimated light to the collimating optical system.
- a distance measuring device comprising a light splitting element having a peripheral portion having a high reflectivity with respect to the received light and having a reflective surface for guiding the received light to the receiving optical system. To do.
- the light splitting element which suppressed the change of the wavelength separation performance depending on the incident angle of light, and a distance measuring device provided with the same can be provided.
- FIG. 1 is a diagram showing a configuration of a distance measuring device including a light splitting element according to the first embodiment of the present invention.
- FIG. 2 shows a dichroic clock provided in the light splitting element according to each embodiment of the present invention.
- 3A, 3B, and 3C are views showing the shape of the reflective coat portion provided in the light splitting element according to each embodiment of the present invention.
- FIG. 4 is a diagram showing light rays incident on the reflective coating portion in the dichroic prism in the distance measuring device including the light splitting element according to the first embodiment of the present invention.
- FIG. 5 is a diagram showing a configuration of a distance measuring device including the light splitting element according to the second embodiment of the present invention.
- FIG. 1 is a diagram showing a configuration of a distance measuring device including a light splitting element according to the first embodiment of the present invention.
- the distance measuring apparatus 1 collimates a target object (not shown), collimating optical system 2 that forms an image of collimated light from the target object, and irradiates the target object with measurement light.
- a transmission optical system 3 for receiving the received light from the target object and a receiving optical system 4 for receiving the received light from the target object are provided as a coaxial optical system sharing the objective lens 5.
- the collimating optical system 2 includes an object lens 5, a focusing lens 6, an erecting prism 7, a reticle 8, and an eyepiece 9 in order from a target object (not shown). .
- the transmission optical system 3 is arranged in order from the target object side on the reflecting mirror 10 disposed in the optical path between the objective lens 5 and the focusing lens 6, and on the reflecting optical path of the reflecting mirror 10.
- a laser diode (L D) that emits light having a wavelength of about 6500 nm is used as the light source 12.
- the receiving optical system 4 includes a dichroic prism 13 described later disposed as a light splitting element in the optical path between the reflecting mirror 10 and the focusing lens 6, and in the vicinity of the exit surface of the dichroic prism 13. And a light receiving element 14 arranged.
- the light receiving element 14 and the light source 12 in the transmission optical system 3 are connected to the calculation control unit 15, respectively.
- the measurement light emitted from the light source 12 passes through the collimator lens 11, is then reflected by the reflecting mirror 10, and is irradiated onto the target object as a substantially parallel light beam through the objective lens 5.
- the light reflected or scattered by the target object that is, the received light again passes through the periphery of the reflecting mirror 10 through the objective lens 5.
- the received light is reflected by the reflection coating portion 16 in the dichroic prism 13, further travels inside the dichroic prism 13, exits, and enters the light receiving element 14.
- the calculation control unit 15 calculates the distance from the distance measuring device 1 to the target object based on the time difference between the timing when the light source 12 is emitted and the timing when the received light is received by the light receiving element 14. To do. At this time, in order to improve the distance measurement accuracy, an internal optical path (not shown) is usually provided to measure the timing of the measurement light. In this way, the user can measure the distance to the target object using the distance measuring device 1. It should be noted that if the measurement light beam from the light source 12 is thinned and irradiated on the target object, the measurement position on the target object can be observed as a red spot image.
- the collimated light from the target object passes through the peripheral part of the reflecting mirror 10 through the objective lens 5, passes through the reflecting coating part 16 in the dichroic prism 13, and then enters the focusing lens 6, The light passes through the erecting prism 7 and the reticle 8 in order, and is guided to the user's eyes through the eyepiece 9. As a result, the user can collimate the target object image.
- the dichroic prism 13 is a prism member formed by sticking a rectangular prism prism and a trapezoid prism that extend in the direction perpendicular to the paper surface.
- an elliptical first reflective coat 16 a having a minor axis extending in the direction perpendicular to the paper surface, and a first reflective coat 16 a formed on the outer peripheral portion of the first reflective coat 16 a. 2 reflective coat
- a reflective coating portion 16 comprising 1 6 b is provided.
- the first reflective coat 16 a is composed of a dichroic coat whose transmission characteristics are shown in FIG. 2, and transmits collimated light out of light from the target object and reflects received light.
- received light light with a wavelength of 6500 nm
- a part of the dichroic coat is applied to the dichroic coat 1 6a.
- the light from the target object cannot be properly divided into the received light and collimated light.
- the second reflection coat 16 b for appropriately reflecting the reception light is provided on the outer peripheral portion where the reflectance of the reception light is reduced in the first reflection coating 16 a.
- the second reflective coat 16 b is made of a metal thin film deposited in a ring shape over the entire circumference of the first reflective coat 16 a as shown in FIG. 3A. -
- the reflection coat unit 16 appropriately divides the light from the target object into the received light and the collimated light by the first reflection coat 16 a, and further proceeds to the outside of the first reflection coat 16 a. Received light can be appropriately reflected by the second reflective coating 16 b.
- the dichroic prism 13 in the present embodiment has a prism member having a refractive index of 1.569, and an angle formed by the reflective coating portion 16 and the optical axis AX is 30. It is arranged so that Then, when light from the target object enters the reflection coat portion 16, the first reflection coat 16 a has a light flux with an F number of 2.75 at the objective lens 5, that is, received light. The collimated light is incident, and the second reflecting coat 16 b is configured to receive a light beam having an F number of 2.2 at the objective lens 5, that is, received light.
- FIG. 4 is a diagram showing a state of light rays incident on the reflective coating portion 16 of the dichroic prism 13 in the distance measuring device 1 including the light splitting element according to the first embodiment of the present invention.
- the first reflective coat 16a of the light ray C passing through the upper end of the objective lens 5 is applied to the first reflective coat 16a.
- the incident angle is 23.5 °
- the incident angle of the light ray D passing through the lower end with respect to the first reflective coating 16 a is 36.5 °.
- the incident angle of the light traveling on the optical axis AX to the first reflective coat 16 a is 30 °
- the incident angle of the light beam passing through the left and right ends of the objective lens 5 to the first reflective coat 16 a is 3 0.6 3 degrees.
- the wavelength separation of the first reflective coat 16a is reduced by reducing the difference in incident angle between the light rays C and D incident on the first reflective coat 16a and the light beam traveling on the optical axis AX. Deterioration of performance can be suppressed.
- the difference in incident angle is reduced, it is easy to design a dichroic coat film, which is advantageous in reducing the number of coats and producing a dichroic coat having better wavelength separation performance. Also, as shown in FIG.
- the incident angle of the light beam A passing through the upper end of the objective lens 5 with respect to the second reflection coat 16 b of the luminous flux having the F number of 2.2 at the objective lens 5 is 2
- the incident angle of the light beam B passing through the lower end with respect to the second reflective coating 16 b is 38 °.
- the incident angle of the light beam that has passed through the left and right ends of the objective lens 5 with respect to the second reflection coat 16 b is 30.95 °.
- the second reflective coat 16 b is made of a metal thin film as described above, and the metal thin film has reflection characteristics that do not depend on the incident angle of light. Therefore, the wavelength separation performance of the dichroic coat 16 a Light rays traveling at an incident angle that causes deterioration (for example, 22 °) can be reflected appropriately without loss of light.
- the area ratio on the objective lens 5 with respect to the light beam with the F number of 2.75 at the objective lens 5, that is, the collimated light and the received light with the light beam at 2.2, that is, the received light is 1: It will be about 1.6.
- the dichroic prism 13 of the present embodiment is such that the reflection coating portion 16 is the same, and the first reflection coating 16 a maintains the wavelength separation performance of the dichroic coating well regardless of the incident angle of the received light.
- the second reflective coat is applied to the incident area of the received light that is traveling at an incident angle that degrades the wavelength separation performance of the dichroic coat. 1 6 b is installed It is
- the first reflective coat 16 a can appropriately divide the light from the target object into the received light and the collimated light with good wavelength separation performance. Therefore, it is possible to prevent a part of the received light from passing through the first reflective coat 16 a and coloring the target object image formed by the collimated light.
- the received light is appropriately reflected by the first reflective coat 16 a, and the received light incident on the second reflective coat 16 b is not reflected by the second reflective coat 16 b regardless of the incident angle. It is reflected appropriately and can be guided to the light receiving element 14. Therefore, the light receiving element 14 can receive the received light with a sufficient amount of light without losing the amount of light.
- this embodiment it is possible to realize a dichroic prism that suppresses a change in wavelength separation performance that depends on the incident angle of light. This also improves the reception efficiency while suppressing the coloration of the collimated light, making it possible to observe the target object image comfortably in a natural color and is advantageous for extending the measurement distance. Can be realized.
- FIG. 5 is a diagram showing a configuration of a distance measuring device including the light splitting element according to the second embodiment of the present invention.
- the distance measuring device 20 includes a collimation optical system 2, a transmission optical system 21, and a reception optical system 22 as a coaxial optical system sharing the objective lens 5.
- the transmission optical system 21 includes a dichroic mirror 2 3 disposed as an optical path splitting element in the optical path between the objective lens 5 and the focusing lens 6, and the dichroic mirror 2 3.
- the dichroic mirror 23 has a reflective coating portion 16 shown in FIG. 3A similar to the dichroic prism 13 of the first embodiment on the surface thereof, and the dichroic prism 1 It has the same effect as 3.
- reception optical system 22 is an optical system that shares the dichroic mirror 23 and the half prism 24 with the transmission optical system 21, and has a light receiving element 14 on the reflection optical path of the half prism 24.
- the measurement light emitted from the light source 1 2 passes through the half prism 2 4, is reflected by the dichroic mirror 1 2 3, and passes through the objective lens 5 as a substantially parallel light beam to the target object. Irradiated.
- the light reflected or scattered by the target object that is, the received light again enters the dichroic mirror 2 3 through the objective lens 5 and is reflected by the reflection coating portion 16 of the dichroic mirror 1 2 3. .
- the received light is reflected by the half prism 24 and enters the light receiving element 14.
- the arithmetic control unit 15 can determine the distance from the distance measuring device 20 to the target object based on the time difference between the timing when the light source 12 emits light and the timing when the received light is received by the light receiving element 14. Is calculated. In this way, the user can measure the distance to the target object using the distance measuring device 20.
- a dichroic mirror that suppresses the change in wavelength separation performance depending on the incident angle of light can be realized. This also improves the reception efficiency while suppressing the coloring of the collimated light, making it possible to observe the target object image comfortably in a natural color, which is advantageous for extending the measurement distance.
- An apparatus can be realized.
- the shape of the second reflective coat 16 b in the reflective coat portion 16 of the dichroic prism 13 of the first embodiment and the dichroic mirror 23 of the second embodiment is shown in FIG. 3A. It is not limited to the annular zone shape. Reflective coat part 1 6
- the second reflective coat 16 b may be formed as long as there is no problem in the amount of collimated light. This makes it possible to secure a larger amount of received light, which is effective for increasing the measurement distance. Therefore, specifically, the following shapes can be formed according to the light receiving efficiency of received light and the manufacturing cost.
- the incident angle of the light beam that has passed through the right and left ends of the objective lens 5 to the reflective coating portion 16 is not very different from the incident angle of the light beam traveling on the optical axis AX, so the wavelength separation performance of dichroic glass is deteriorated. There is nothing to do. For this reason, since it is not always necessary to provide the second reflective coat 16 b in the region where the light beam that has passed through the left and right ends of the objective lens 5 enters the reflective coat part 16, the second reflective coat 16 b is provided. For example, as shown in FIG. 3B, the left and right portions of the annular zone may be cut out.
- the second reflective coat 16 b is formed as shown in FIG. Only the upper half of the ring shape may be used, and the thickness may increase toward the upper end. It is preferable that the second reflective coat 16 b be formed in these shapes, since there is an advantage that the manufacturing becomes easy.
- the dichroic prism 13 of the first embodiment is incident on the reflective coating section 16 because the light beam is refracted by the prism portion as compared to the dichroic mirror 23 of the second embodiment.
- the dichroic mirror 1 23 according to the second embodiment has an advantage that it is easier to manufacture than the dichroic prism 13 according to the first embodiment.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08711413A EP2120071A4 (en) | 2007-02-13 | 2008-02-08 | LIGHT DIVISION ELEMENT AND DISTANCE MEASURING DEVICE |
JP2008558158A JPWO2008099939A1 (ja) | 2007-02-13 | 2008-02-08 | 光分割素子、距離測定装置 |
US12/537,350 US20090296071A1 (en) | 2007-02-13 | 2009-08-07 | Light-dividing element and distance-measuring apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-032418 | 2007-02-13 | ||
JP2007032418 | 2007-02-13 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/537,350 Continuation US20090296071A1 (en) | 2007-02-13 | 2009-08-07 | Light-dividing element and distance-measuring apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008099939A1 true WO2008099939A1 (ja) | 2008-08-21 |
Family
ID=39690164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/052583 WO2008099939A1 (ja) | 2007-02-13 | 2008-02-08 | 光分割素子、距離測定装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090296071A1 (ja) |
EP (1) | EP2120071A4 (ja) |
JP (1) | JPWO2008099939A1 (ja) |
WO (1) | WO2008099939A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010243236A (ja) * | 2009-04-02 | 2010-10-28 | Nikon-Trimble Co Ltd | 測距装置 |
EP2295926A1 (de) | 2009-09-03 | 2011-03-16 | Carl Zeiss Sports Optics GmbH | Zielfernrohr |
JP2012098200A (ja) * | 2010-11-04 | 2012-05-24 | Nikon Vision Co Ltd | レーザー距離計 |
JP2018510345A (ja) * | 2014-12-15 | 2018-04-12 | フォルヴェルク・ウント・ツェーオー、インターホールディング・ゲーエムベーハーVorwerk & Compagnie Interholding Gesellshaft Mit Beschrankter Haftung | 自動移動可能な清掃装置 |
WO2019060975A1 (en) | 2017-09-29 | 2019-04-04 | Raython Canada Limited | INTEGRATED OPTICAL VISUAL SYSTEM |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5912234B2 (ja) | 2010-07-16 | 2016-04-27 | 株式会社トプコン | 測定装置 |
JP5653715B2 (ja) * | 2010-10-27 | 2015-01-14 | 株式会社トプコン | レーザ測量機 |
US9429652B2 (en) * | 2011-10-21 | 2016-08-30 | Lg Electronics Inc. | Apparatus for measuring distance |
CN116148811B (zh) * | 2023-04-18 | 2023-06-20 | 锋睿领创(珠海)科技有限公司 | 基于波长异位分布平行光源的多光谱分段成像视觉系统 |
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DE60135889D1 (de) * | 2000-03-17 | 2008-11-06 | Hitachi Ltd | Bildanzeigevorrichtung |
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2008
- 2008-02-08 EP EP08711413A patent/EP2120071A4/en not_active Withdrawn
- 2008-02-08 JP JP2008558158A patent/JPWO2008099939A1/ja not_active Withdrawn
- 2008-02-08 WO PCT/JP2008/052583 patent/WO2008099939A1/ja active Application Filing
-
2009
- 2009-08-07 US US12/537,350 patent/US20090296071A1/en not_active Abandoned
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JPS5621112B2 (ja) * | 1974-08-12 | 1981-05-18 | ||
JPS61138221A (ja) * | 1984-12-10 | 1986-06-25 | Canon Inc | 焦点検出装置 |
JPH0219813A (ja) * | 1988-07-07 | 1990-01-23 | Canon Inc | 焦点検出装置を有した一眼レフカメラ |
JPH0894354A (ja) * | 1994-09-28 | 1996-04-12 | Asahi Optical Co Ltd | 測距光学系 |
JPH0894739A (ja) * | 1994-09-28 | 1996-04-12 | Asahi Optical Co Ltd | 光分岐光学系 |
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JP2001154294A (ja) * | 1999-09-17 | 2001-06-08 | Hitachi Ltd | 光学エンジン、及びこれを用いた映像表示装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010243236A (ja) * | 2009-04-02 | 2010-10-28 | Nikon-Trimble Co Ltd | 測距装置 |
EP2295926A1 (de) | 2009-09-03 | 2011-03-16 | Carl Zeiss Sports Optics GmbH | Zielfernrohr |
DE102009039851A1 (de) | 2009-09-03 | 2011-05-12 | Carl Zeiss Sports Optics Gmbh | Zielfernrohr |
US8599482B2 (en) | 2009-09-03 | 2013-12-03 | Armin Schlierbach | Telescopic sight |
JP2012098200A (ja) * | 2010-11-04 | 2012-05-24 | Nikon Vision Co Ltd | レーザー距離計 |
JP2018510345A (ja) * | 2014-12-15 | 2018-04-12 | フォルヴェルク・ウント・ツェーオー、インターホールディング・ゲーエムベーハーVorwerk & Compagnie Interholding Gesellshaft Mit Beschrankter Haftung | 自動移動可能な清掃装置 |
WO2019060975A1 (en) | 2017-09-29 | 2019-04-04 | Raython Canada Limited | INTEGRATED OPTICAL VISUAL SYSTEM |
EP3688509A4 (en) * | 2017-09-29 | 2021-05-19 | Raytheon Canada Limited | INTEGRATED OPTICAL VISOR SYSTEM |
US11474337B2 (en) | 2017-09-29 | 2022-10-18 | Raytheon Canada Limited | Integrated optical sighting system |
Also Published As
Publication number | Publication date |
---|---|
EP2120071A1 (en) | 2009-11-18 |
EP2120071A4 (en) | 2012-10-03 |
JPWO2008099939A1 (ja) | 2010-05-27 |
US20090296071A1 (en) | 2009-12-03 |
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