WO2023041244A1 - Imagermodul für eine kamera oder einen sensor - Google Patents
Imagermodul für eine kamera oder einen sensor Download PDFInfo
- Publication number
- WO2023041244A1 WO2023041244A1 PCT/EP2022/071668 EP2022071668W WO2023041244A1 WO 2023041244 A1 WO2023041244 A1 WO 2023041244A1 EP 2022071668 W EP2022071668 W EP 2022071668W WO 2023041244 A1 WO2023041244 A1 WO 2023041244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens
- housing
- imager module
- holding element
- sensor
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/073—Shaping the laser spot
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/002—Details of arrangement of components in or on camera body
Definitions
- Imager module for a camera or a sensor
- the invention relates to an imager module for a camera or a sensor.
- the preferred areas of application for the camera or sensor are video-based driver assistance systems, industrial and/or security camera applications, and consumer goods, such as smartphones and tablets.
- An imager module for a camera or a sensor usually includes an image sensor arranged on a sensor carrier and a lens with at least one optical lens. Since an axial distance between the lens and the image sensor must be bridged and the lens must be aligned in relation to the image sensor, a holding device can be provided between the lens and the image sensor, which is glued to the lens on the one hand and to the sensor carrier on the other to fix the focused position .
- the objective element group has a tube with at least one lens accommodated therein, the tube being accommodated in a holding device of the image acquisition device, which has a first holding adhesive area for adhering to a sensor carrier and a second holding adhesive area for adhering to the tube.
- adhesive connections have the disadvantage that they tend to swell under the influence of temperature and/or moisture, so that the set focus position is endangered.
- adhesives change their properties as they age. This can also result in defocusing due to changing axial distance between the lens and the image sensor.
- the present invention is therefore concerned with the task of specifying an imager module for a camera or a sensor, which has a focus position that is as stable as possible even under the influence of temperature and/or moisture.
- the imager module should be as simple and thus inexpensive to produce.
- the imager module proposed for a camera or a sensor comprises a housing that is preferably designed in several parts, a sensor carrier which is firmly connected to the housing and on which an image sensor is arranged, a lens and a holding element.
- the lens is held by the holding element and aligned in relation to the image sensor.
- the holding element has a plate-shaped section arranged eccentrically with respect to the objective and a collar-shaped section arranged at an angle thereto, which surrounds the objective only over a partial peripheral area and is welded to it, preferably at certain points.
- the usually provided adhesive connection between the lens and the lens holder or the holding element is replaced by a welded connection.
- a stable focus position can be achieved with the help of the welded connection, even under the influence of temperature and/or moisture. Accordingly, a robust connection between the lens and the holding element is achieved with the aid of the welded connection.
- the welded connection also has advantages when assembling the imager module. Because before welding, the lens can be aligned in relation to the image sensor and then fixed by setting the weld seam. Welding seams are preferably only set at certain points, so that the heat input during welding is minimal.
- the welded connection is preferably produced with the aid of a laser, so that this is a laser welded connection. With the help of the laser, individual spot welds can be set in a targeted manner.
- the plate-shaped section of the holding element is welded to the housing and/or to the sensor carrier, preferably at points.
- the focus position of the lens is therefore doubly fixed and therefore particularly stable. This is particularly true because there is no adhesive connection at all, so that changes in temperature and/or humidity have no effect on the focal position of the lens.
- the welded connection can also be produced here by means of a laser. Welding seams or spot welds are preferably only set at certain points in order to minimize the heat input.
- the holding element is preferably made of metal. This ensures that the holding element can be welded. Furthermore, the holding element is preferably made of a metal sheet, since this enables the holding element to be produced particularly cost-effectively as a stamped/bent part.
- the objective has a metallic contour for welding to the holding element, at least in the area of the collar-shaped section of the holding element.
- the lens is made of metal at least in a partial peripheral area. This is the partial peripheral area that is surrounded by the collar-shaped section of the holding element.
- the partial peripheral area extend over more or less than 180°. If only a collar-shaped section is provided, this preferably extends over a partial peripheral area of the objective of at least 180°, so that a robust connection between the objective and the holding element is ensured by setting at least three spot welds.
- a continuous collar-shaped section several short collar-shaped sections can also be provided, which are then welded to the lens. For example, three short collar-shaped sections, two of which are opposite one another on the lens, can be provided.
- the housing is at least partially made of metal. This enables a welded connection between the holding element and the housing. Furthermore, a metallic housing has a particularly high level of robustness, so that the components accommodated therein are particularly well protected against external influences.
- the sensor carrier on which the image sensor is arranged can in particular be a printed circuit board.
- the image sensor can then be electrically contacted via conductor tracks arranged on the printed circuit board.
- the sensor carrier is positively connected to the housing.
- the position of the sensor carrier and thus of the image sensor arranged thereon can be fixed in relation to the housing via the positive fit.
- the positive connection can be produced, for example, with the aid of at least one geometry on the housing, which engages in a recess in the sensor carrier. At least two, for example three or four, such geometries are preferably provided, which are furthermore preferably arranged in a spatially distributed manner.
- the geometries can also be used to connect the housing to the holding element.
- the geometries can form bases for placing the holding element.
- the retaining element can then be welded to the housing in the area of the geometries.
- the housing advantageously comprises at least a first housing part for connection to the sensor carrier and a second part designed as a cover housing part.
- the multi-part design of the housing facilitates the assembly of the imager module.
- the sensor carrier including the image sensor can be inserted into the housing and connected to it.
- the mounting element and the lens are then assembled, with the lens being aligned in relation to the image sensor.
- the second housing part designed as a cover can be mounted so that the housing is closed and the components accommodated therein are optimally protected.
- the first and the second housing part are preferably connected in a material and/or form-fitting manner.
- the contact area can have a rabbeted edge through which the two housing parts engage.
- the two housing parts can be glued together. Both measures - individually and in combination - prevent dirt from entering the housing.
- the integral connection by means of the adhesive also causes the housing to be sealed in the connection area.
- the second housing part designed as a cover preferably has a recess through which the lens is passed. This ensures that the optics accommodated in the lens are not covered by the second housing part.
- a seal is advantageously used to seal the housing in an annular gap between the housing part and the lens.
- the seal can be accommodated in a circumferential ring groove of the lens so that it is mounted together with the lens. The inclusion of the seal in the annular groove prevents the seal from being displaced during assembly of the second housing part designed as a cover.
- the recess of the second housing part is preferably bordered by a collar, which comes into contact with the seal when the second housing part is installed. In this way, the sealing of the housing can be further optimized.
- the objective preferably has at least one optical lens, which forms the optics.
- Several optical lenses can be combined, for example, in the form of a lens pack. This can be pre-assembled and inserted into the lens as a unit, further simplifying assembly.
- an electrical consumer for example a heating device, be integrated into the lens and the electrical contact be realized in an outer peripheral area of the lens that is released by the eccentrically arranged holding element.
- the proposed eccentric arrangement of the holding element therefore has several advantages.
- a first advantage is that material and costs can be saved.
- the holding element leaves free spaces which facilitate the necessary electrical contacting. This can be produced with the help of conductor tracks, cables and/or pins. There is sufficient space for accommodating these elements due to the eccentric arrangement of the holding element.
- FIG. 1 shows a cut perspective view of an imager module according to a first preferred embodiment of the invention
- Fig. 2 shows a longitudinal section through the imager module of Fig. 1.
- FIG. 3 shows another longitudinal section through the imager module of FIG. 1, but rotated by 90°
- FIG. 4 shows a plan view of the lens and the holding device of the imager module of FIG. 1, a) before assembly and b) after assembly,
- FIG. 5 shows a perspective representation of the housing of the imager module of FIG. 1 with the sensor carrier and image sensor inserted
- FIG. 6 shows a perspective representation of the housing of FIG. 5 after the insertion of the holding element and the lens
- Fig. 7 shows the housing of Fig. 6, but rotated by 45° and with details of the welding points
- 8 shows the housing of FIG. 7, but rotated again by 180°
- FIG. 9 shows a perspective representation of an imager module according to a further preferred embodiment of the invention (without cover part) and
- FIG. 10 shows a longitudinal section through the imager module of FIG. 9, but with a cover part.
- FIG. 1 shows a first preferred embodiment of an imager module 1 according to the invention. This comprises a housing 2 with a first housing part
- a sensor carrier 3 with an image sensor 4 arranged thereon is inserted into the first housing part 2.1.
- a lens 5 with at least one lens 10 is arranged above the image sensor 4 and is aligned with respect to the image sensor 4 .
- the lens 5 is held and fixed by a holding element 6 .
- the second housing part 2.2 is arranged above the holding element 6, the lens 5 passing through a recess 7 of the housing part
- the seal 9 is inserted in an annular gap 8 between the lens 5 and the housing part 2.2, so that the housing 2 is sealed off from the outside.
- the holding element 6 is arranged eccentrically in relation to the objective 5, so that the holding element 6 surrounds the objective 5 only partially or over a partial peripheral region.
- the holding element 6 also has a plate-shaped section 6.1 and a collar-shaped section 6.2, which is arranged at an angle, here at right angles, with respect to the plate-shaped section 6.1.
- the collar-shaped section 6.2 can thus be easier Way a connection of the holding element 6 with the lens 5 are made.
- FIGS. 4a) and 4b) show that the collar-shaped section 6.2 extends over a part of the circumference, which in the present case corresponds to an angle a of 180°.
- the angle a can be chosen freely.
- several shorter collar-shaped sections 6.2 can also be provided analogously to the further embodiment of an imager module 1 according to the invention shown in Figures 9 and 10.
- the holding element 6 is mounted on geometries 13 on the housing side in the form of bases. These are inserted into recesses 14 of the sensor carrier 3 and protrude beyond the sensor carrier 3. In this way, a form fit between the sensor carrier 3 and the housing 2 is achieved. As shown by way of example in FIG. 5, a total of four of these geometries 13 can be provided, onto which the sensor carrier 3 is placed from above during assembly. The holding element 6 can then be placed on the geometries 13 . The lens 5 can then be placed above the image sensor 4, aligned in relation to the image sensor 4 and welded to the holding element 6 for too long a fixation, so that the arrangement shown by way of example in FIG. 6 is obtained.
- the holding element 6 is preferably connected to the lens 5 and to the housing 2 via individual spot welds 12, which can be set according to FIGS.
- Three spot welds 12 are sufficient to produce a robust connection, two of which are arranged opposite each other.
- the free space provided by the eccentric arrangement of the holding element 6 can be used, as shown in FIGS.
- the plate-shaped section 6.1 of that shown in FIGS Retaining element 6 is designed to be significantly larger than in the case of the retaining element 6 of FIGS. 1 to 8, there is sufficient free space for accommodating contact means.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247011978A KR20240068681A (ko) | 2021-09-17 | 2022-08-02 | 카메라 또는 센서를 위한 이미저 모듈 |
CN202280062158.4A CN117981334A (zh) | 2021-09-17 | 2022-08-02 | 用于摄像头或者传感器的成像模块 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021210306.5 | 2021-09-17 | ||
DE102021210306.5A DE102021210306A1 (de) | 2021-09-17 | 2021-09-17 | Imagermodul für eine Kamera oder einen Sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023041244A1 true WO2023041244A1 (de) | 2023-03-23 |
Family
ID=83115367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/071668 WO2023041244A1 (de) | 2021-09-17 | 2022-08-02 | Imagermodul für eine kamera oder einen sensor |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20240068681A (de) |
CN (1) | CN117981334A (de) |
DE (1) | DE102021210306A1 (de) |
WO (1) | WO2023041244A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10352969B4 (de) * | 2002-02-21 | 2005-12-22 | Pentax Corp. | Mechanismus zum Schwenken einer Linse |
WO2018054426A1 (de) * | 2016-09-21 | 2018-03-29 | First Sensor Mobility Gmbh | Gehaustes kamerasystem, verfahren und vorrichtung zu dessen herstellung |
DE102019200061A1 (de) | 2019-01-04 | 2020-07-09 | Robert Bosch Gmbh | Objektivelementgruppe für eine die Objektivelementgruppe und einen Sensorträger umfassende Bilderfassungsvorrichtung und Bilderfassungsvorrichtung |
DE102020203081A1 (de) * | 2019-05-26 | 2020-11-26 | Robert Bosch Gesellschaft mit beschränkter Haftung | Dichtungsanordnung zur statischen Abdichtung einer vereisungsgefährdeten Bauteilkomponente, Objektiv mit Dichtungsanordnung |
DE102019213798A1 (de) * | 2019-09-11 | 2021-03-11 | Robert Bosch Gmbh | Verfahren zum Fügen eines Kameraobjektivs an einem Objektivhalter |
DE102019216283A1 (de) * | 2019-10-23 | 2021-04-29 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Kameramoduls, Kameramodul |
DE102019216287A1 (de) * | 2019-10-23 | 2021-04-29 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Kameramoduls, Kameramodul |
-
2021
- 2021-09-17 DE DE102021210306.5A patent/DE102021210306A1/de active Pending
-
2022
- 2022-08-02 WO PCT/EP2022/071668 patent/WO2023041244A1/de active Application Filing
- 2022-08-02 KR KR1020247011978A patent/KR20240068681A/ko unknown
- 2022-08-02 CN CN202280062158.4A patent/CN117981334A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10352969B4 (de) * | 2002-02-21 | 2005-12-22 | Pentax Corp. | Mechanismus zum Schwenken einer Linse |
WO2018054426A1 (de) * | 2016-09-21 | 2018-03-29 | First Sensor Mobility Gmbh | Gehaustes kamerasystem, verfahren und vorrichtung zu dessen herstellung |
DE102019200061A1 (de) | 2019-01-04 | 2020-07-09 | Robert Bosch Gmbh | Objektivelementgruppe für eine die Objektivelementgruppe und einen Sensorträger umfassende Bilderfassungsvorrichtung und Bilderfassungsvorrichtung |
DE102020203081A1 (de) * | 2019-05-26 | 2020-11-26 | Robert Bosch Gesellschaft mit beschränkter Haftung | Dichtungsanordnung zur statischen Abdichtung einer vereisungsgefährdeten Bauteilkomponente, Objektiv mit Dichtungsanordnung |
DE102019213798A1 (de) * | 2019-09-11 | 2021-03-11 | Robert Bosch Gmbh | Verfahren zum Fügen eines Kameraobjektivs an einem Objektivhalter |
DE102019216283A1 (de) * | 2019-10-23 | 2021-04-29 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Kameramoduls, Kameramodul |
DE102019216287A1 (de) * | 2019-10-23 | 2021-04-29 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Kameramoduls, Kameramodul |
Also Published As
Publication number | Publication date |
---|---|
DE102021210306A1 (de) | 2023-03-23 |
CN117981334A (zh) | 2024-05-03 |
KR20240068681A (ko) | 2024-05-17 |
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