CN215376038U - Light filtering device, light supplementing lamp comprising same and camera - Google Patents
Light filtering device, light supplementing lamp comprising same and camera Download PDFInfo
- Publication number
- CN215376038U CN215376038U CN202120902638.XU CN202120902638U CN215376038U CN 215376038 U CN215376038 U CN 215376038U CN 202120902638 U CN202120902638 U CN 202120902638U CN 215376038 U CN215376038 U CN 215376038U
- Authority
- CN
- China
- Prior art keywords
- filter
- filters
- light
- holder
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Studio Devices (AREA)
Abstract
An embodiment of the present invention provides a light filtering device, and a fill-in lamp and a camera including the light filtering device, including: the shell is internally provided with a hollow accommodating cavity; the driving motor is arranged in the accommodating cavity; the optical filter support is a circular ring which is arranged in the shell in the center and rotates around the center of the optical filter support under the driving of the driving motor, and the optical filter support is provided with a circular light-transmitting area; the N optical filters are arranged on the optical filter support in a stacked mode and have the fan-shaped shapes with the same central angles corresponding to the light transmission areas, and the N optical filters have the freedom degree of parallel rotation relative to the optical filter support so as to be mutually stacked or staggered under the driving of the optical filter support, and the light transmission areas are partially or completely covered.
Description
Technical Field
The utility model relates to the field of light supplement lamp devices, in particular to a light filtering device, a light supplement lamp comprising the light filtering device and a camera comprising the light supplement lamp.
Background
The light filling lamp on the market at present is various, has different structural style such as increasing the grating or using fixed light filter, mainly used reduces the white light pollution at night. However, the positions of the gratings or the optical filters and the like in the light supplement lamps in the market are fixed, and different states cannot be automatically switched along with day and night. If the switching mechanism is added, the whole volume of the light supplement lamp is greatly increased.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a filter device, and a fill-in lamp and a camera including the filter device, which can change a filter area according to a requirement of a use environment by implementing different filter areas through lamination and combination of a plurality of filters.
One embodiment of the present invention provides a light filtering apparatus including:
the shell is internally provided with a hollow accommodating cavity;
the driving motor is arranged in the accommodating cavity;
the optical filter support is a circular ring which is arranged in the shell in the center and rotates around the center of the optical filter support under the driving of the driving motor, and the optical filter support is provided with a circular light-transmitting area;
the N optical filters are in fan-shaped shapes with the same central angles corresponding to the light transmission areas and concentrically arranged on the optical filter support with the optical filter support, at least one of the N optical filters has freedom degree of parallel rotation relative to the optical filter support, and the N optical filters are mutually stacked or staggered under the driving of the optical filter support so as to partially or completely cover the light transmission areas.
In one embodiment, the central angle of each filter is 360/N.
In one embodiment, each filter comprises two sectors arranged centrally symmetrically, each sector having a central angle of 360 °/2N.
In one embodiment, the optical filter includes:
a first filter fixed to the filter holder to rotate synchronously with the filter holder;
the third optical filter is fixed to the inner wall of the shell in the accommodating cavity and is concentric with the first optical filter;
one or more second filters, the second filters are arranged between the first filters and the third filters in a stacked manner, the second filters and the first filters are concentrically arranged on the filter support, and the second filters have freedom degrees of parallel rotation relative to the filter support.
In one embodiment, the filter holder has a first and a second direction of rotation opposite to each other,
the fan shape of the first filter comprises a first front edge and a first rear edge in a first rotating direction;
the fan shape of the second filter includes a second leading edge and a second trailing edge in the first rotational direction.
In one embodiment, the first optical filter and/or the second optical filter further include a first limiting rib protruding from the first rear edge or the second rear edge along a direction away from the first optical filter, so as to form interference with the second front edge of the adjacent second optical filter in the first rotation direction, and the first limiting rib drives the adjacent second optical filter to rotate in the first rotation direction.
In one embodiment, the first optical filter and/or the second optical filter further include a second limiting rib protruding from the center of the first optical filter or the second optical filter along a direction away from the first optical filter, so as to form interference with a second rear edge of the adjacent second optical filter in the second rotation direction, so as to drive the adjacent second optical filter to rotate along the second rotation direction through the second limiting rib.
In one embodiment, the inner wall of the housing further includes a third position-limiting pillar protruding toward the optical filter to limit the position of the second optical filter.
In one embodiment, the driving motor further engages with the outer edge or the center of the filter holder through a transmission mechanism.
In one embodiment, the arc-shaped outer edge of the first filter is in interference fit with the inner edge of the filter support.
Another embodiment of the present invention provides a fill-in lamp, which includes the filter device as described above.
Yet another embodiment of the present invention also provides a camera including the optical filtering device as described above.
As can be seen from the above technical solutions, in the filter stack arrangement of the present embodiment, the filter area can be switched only by the rotation of the filter holder, and the filter area of the filter device is formed by all the filters, rather than being determined by the filter area of a single filter, so that there is no need to provide a switching mechanism with a complicated structure. The light filtering device of the embodiment is flexible to use, small in size, simple in structure and capable of being widely applied to various application environments.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is a schematic structural view of a filter device of the present invention.
Fig. 2 is a schematic view of a filter holder and filter combination according to the present invention.
Fig. 3a and 3b are schematic views illustrating the installation of the filter holder and the first filter in the present invention.
Fig. 4a and 4b are schematic structural diagrams of the first filter and the second filter in the present invention.
Fig. 5a and 5b are schematic structural diagrams of the first filter and the second filter in the present invention.
Fig. 6a to 6d are schematic diagrams illustrating the open and closed states of the filter of the filtering apparatus according to the present invention.
Fig. 7a and 7b are schematic structural views of a first embodiment and a second embodiment of the transmission mechanism of the present invention.
Fig. 8a to 8c are schematic views illustrating the open and closed states of the filter of the second embodiment of the filtering apparatus of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
For the sake of simplicity, the drawings are only schematic representations of the parts relevant to the utility model, and do not represent the actual structure of the product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled.
The utility model aims to provide a filter device, which realizes different filter areas through lamination and combination of a plurality of filters, thereby being capable of changing the filter areas according to requirements of use environments.
Fig. 1 is a schematic structural view of a filter device of the present invention. As shown in fig. 1, the present invention provides a light filtering apparatus including:
the shell 10 is provided with a hollow accommodating cavity formed in the shell 10, wherein the shell 10 can be formed by mutually splicing a front shell 11 and a rear shell 12;
a driving motor 20 installed in the accommodating cavity;
a filter holder 30, the filter holder 30 being a circular ring centrally installed in the housing 10 to rotate around the center thereof by the driving motor 20, the filter holder 30 having a circular light-transmitting area;
Referring to fig. 2, the filters in the present embodiment are stacked and all have the same shape of a sector, so that when the filters are overlapped and aligned with each other, the smallest filtering area shown in fig. 6d can be formed, and when the filters are spread out with a gap, the largest filtering area shown in fig. 6a can be formed. The filter area formed by the combination of the filter stacks is used for partially or completely covering the light transmission area to form light transmission areas with different sizes.
In the filter stacking arrangement in the present embodiment, the switching of the filtering area can be realized only by the rotation of the filter holder, and the filtering area of the filtering device is formed by the combination of all the filters, rather than being determined by the filtering area of a single filter, so that there is no need to provide a switching mechanism with a complicated structure. The light filtering device of the embodiment is flexible to use, small in size, simple in structure and capable of being widely applied to various application environments.
In one embodiment, such as an infrared fill-in lamp, the filter may be a filter for filtering white light and transmitting infrared light. The filters of the present embodiment, when combined to form the smallest filtering area as shown in fig. 6d, can be used for application scenarios such as daytime, for transmitting white light of the largest area. When the optical filters in this embodiment are as shown in fig. 6a, and the maximum filtering area is formed by combination, the optical filters can be used in an application scene at night, for example, to realize functions of filtering white light pollution and transmitting infrared light for night supplementary lighting.
The plurality of filters are driven by the filter support 30 to rotate so as to combine to form different filter areas by changing the relative positions of the filters.
Wherein each filter 31,32,33 can be a single sector, and the central angle is 360 °/N.
Alternatively, as shown in fig. 2, each filter 31,32,33 includes two sectors arranged centrosymmetrically, and the central angle of each sector is 360 °/2N.
As shown in fig. 2, in a preferred embodiment, the optical filter includes:
a first filter 31, the first filter 31 being fixed to the filter holder 30 to rotate synchronously with the filter holder 30;
the third optical filter 33 is fixed to the inner wall of the shell 10 in the accommodating cavity, and is concentric with the first optical filter 31;
one or more second filters 32, the second filters 32 are stacked between the first filters 31 and the third filters 33, the second filters 32 are concentrically mounted to the filter holder 30 with the first filters 31, and the second filters 32 have a degree of freedom of parallel rotation with respect to the filter holder 30.
As shown in fig. 3a and 3b, the arc-shaped outer edge of the first filter 31 is in interference fit with the inner edge of the filter holder 30. And a fastening connection with the filter holder 30 may be further achieved by screws 34.
In the present embodiment, the example of including only one second filter 32 is described, and in the case of including a plurality of second filters 32, a plurality of second filters 32 are stacked between the first filter 31 and the third filter 33.
In the present embodiment, as shown in fig. 6a, the edge of the third optical filter 33 may be fixed to the inner wall of the housing 10 (or other structure in the receiving cavity) by a fastening device, and the position of the third optical filter 33 is fixed. And the first filter 31 is fixed to the filter holder 30 and is driven by the driving motor 20 in synchronization with the filter holder 30. Therefore, the filter holder 30 needs to be provided with a structure for driving the second filter 32 to rotate.
In a specific embodiment, the order of turning on and off the filters is sequentially turning on and off in the order of stacking the filters, for example, sequentially turning on the first filter 31, the second filter 32, and the third filter 33, or sequentially turning on the third filter 33, the second filter 32, and the first filter 31, and so on.
In one embodiment, the filter holder 30 has a first rotational direction and a second rotational direction that are opposite, for example, the first rotational direction is an opening direction of the filter, and the second rotational direction is a closing direction of the filter. In the present embodiment, for example, the clockwise direction in the figure is the first rotation direction, and the counterclockwise direction is the second rotation direction.
Correspondingly, the fan shape of the first filter 31 includes a first leading edge 311 and a first trailing edge 312 in the first rotation direction; the fan shape of the second filter 32 includes a second leading edge 321 and a second trailing edge 322 in the first rotational direction. The leading edge is a radius on the front side in the direction of rotation, and the trailing edge is a radius on the rear side in the direction of rotation.
The first filter 31 and/or the second filter 32 further include a first limiting rib 41, and since only one second filter 32 is illustrated in this embodiment, the limiting rib 41 is disposed on the first filter 31. Since the first filter 31 is fixed to the filter holder 30, in this embodiment, the first limiting rib 41 can also be disposed at a corresponding position of the filter holder 30.
As shown in fig. 3a, 4a, and 4b, the first limiting rib 41 protrudes from the first rear edge 312 or the second rear edge 322 along a direction away from the first optical filter 31 to form interference with the second front edge 321 of the adjacent second optical filter 32 in the first rotation direction, and the first limiting rib 41 drives the adjacent second optical filter 32 to rotate along the first rotation direction.
The second filter 32 can be sleeved on the central shaft of the filter holder 30 as shown in fig. 2, and cannot be directly driven to rotate by the central shaft of the filter holder 30. When the filter holder 30 rotates along the first rotation direction from the closed position shown in fig. 6a, as shown in fig. 6b, it only rotates the first filter 31 in the direction overlapping with the third filter 33, and the second filter 32 does not rotate therewith. When the first filter 31 rotates along with the filter holder 30 until the first limiting rib 41 and the second front edge 321 of the second filter 32 interfere with each other as shown in fig. 4b and fig. 6b, as shown in fig. 4b and fig. 6c, the first limiting rib 41 drives the adjacent second filter 32 to rotate along the first rotation direction to rotate in the direction overlapping with the third filter 33 until the first filter 31, the second filter 32, and the third filter 33 completely overlap with each other as shown in fig. 6d, so as to form the minimum filtering area.
In the second direction of rotation, the leading and trailing edges are interchanged, the rotation being reversed.
In a preferred embodiment, as shown in fig. 5a and 5b, the first optical filter 31 and/or the second optical filter 32 further includes a second limiting rib 42, and the second limiting rib 42 protrudes from the center of the first optical filter 31 or the second optical filter 32 along a direction away from the first optical filter 31 to form interference with the second rear edge 322 of the adjacent second optical filter 32 in the second rotation direction, so that the second limiting rib 42 drives the adjacent second optical filter 32 to rotate along the second rotation direction.
The second limiting rib 42 may be dedicated to the following for pushing the second optical filter 32 in the second rotation direction, and it may be combined with the first limiting rib 41 to form a driving structure for the second optical filter 32.
Further, as shown in fig. 6d, the inner wall of the housing 10 may further include a third position-limiting pillar 43 protruding toward the filters 31,32,33 to limit the position of the second filter 32. The third position-limiting pillars 43 may also be formed on the edge of the third filter 33 to limit the position of the second filter 32 relative to the third filter 33.
In order to drive the filter holder 30 in a limited space, the driving motor 20 may further engage with the outer edge or the center of the filter holder 30 through the transmission mechanism 21.
For example, as shown in fig. 8a, the transmission mechanism 21 is implemented as a pinion gear that meshes with the outer edge of the filter holder 30, and the outer edge of the filter holder 30 forms a transmission gear that cooperates with the pinion gear to rotate under the drive of the drive motor 20 and the pinion gear.
Alternatively, as shown in fig. 8b, the transmission mechanism 21 is implemented as a pulley engaged with the central shaft of the filter holder 30 to drive the filter holder 30 by rotating the central shaft.
While three filters are illustrated and described, the filtering device of the present invention may further include a plurality of filters, for example, four filters. As shown in fig. 8a to 8c, the filter device of the present embodiment includes a first filter 31, two second filters 32', 32 ″ and a third filter 33, and the central angle of the single fan shape of each filter is 45 °. Fig. 8a to 8c are diagrams showing the state in which the filter device is expanded from the closed state to the open state.
In another embodiment of the present invention, a light supplement lamp is provided, wherein a light filtering device as shown in any one of fig. 1 to 8c is further disposed in a housing of the light supplement lamp, and the light filtering device is disposed at a light ray inlet of the light supplement lamp, so that switching of a light filtering area can be realized only by rotation of a light filter support, so as to meet light supplement requirements under different light ray conditions.
In one embodiment, such as an infrared fill-in lamp, the filter may be a filter for filtering white light and transmitting infrared light. The filters of the present embodiment, when combined to form the smallest filtering area as shown in fig. 6d, can be used for application scenarios such as daytime, for transmitting white light of the largest area. When the optical filters in this embodiment are as shown in fig. 6a, and the maximum filtering area is formed by combination, the optical filters can be used in an application scene at night, for example, to realize functions of filtering white light pollution and transmitting infrared light for night supplementary lighting.
In another embodiment of the present invention, a camera is further provided, wherein a filter device as shown in any one of fig. 1 to 8c is further disposed in a housing of the camera, and the filter device is disposed at a light ray inlet of the fill-in light, so that switching of a filter area can be realized only by rotation of the filter holder, so as to meet light intensity requirements under different light conditions. Alternatively, the camera may include only the filter device as described above, or a fill-in lamp having the filter device as described above.
In this document, "a" does not mean that the number of the relevant portions of the present invention is limited to "only one", and "a" does not mean that the number of the relevant portions of the present invention "more than one" is excluded.
Unless otherwise indicated, numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges subsumed therein.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention and is not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of the features without departing from the technical spirit of the present invention are included in the scope of the present invention.
Claims (12)
1. A light filtering device, comprising:
the shell (10), a hollow accommodating cavity is formed in the shell (10);
the driving motor (20) is arranged in the accommodating cavity;
the filter support (30) is a circular ring which is arranged in the shell (10) by taking the filter support (30) as a center so as to rotate around the center of the filter support under the driving of the driving motor (20), and the filter support (30) is provided with a circular light-transmitting area;
n filters (31,32,33) having a sector shape with the same central angle as the light transmission region and concentrically mounted to the filter holder (30) with the filter holder (30), at least one of the N filters (31,32,33) having a degree of freedom of parallel rotation with respect to the filter holder (30), the N filters (31,32,33) being stacked or staggered with each other under the drive of the filter holder (30) to partially or completely cover the light transmission region.
2. A filter device according to claim 1, wherein the central angle of each filter (31,32,33) is 360 °/N.
3. A filter device according to claim 1, wherein each filter (31,32,33) comprises two sectors arranged centrally symmetrically, each sector having a central angle of 360 °/2N.
4. The light filtering device of claim 1, wherein the light filter comprises:
a first filter (31), said first filter (31) being fixed to said filter holder (30) for synchronous rotation with said filter holder (30);
the third optical filter (33) is fixed to the inner wall of the shell (10) in the accommodating cavity and is concentric with the first optical filter (31);
one or more second filters (32), wherein the second filters (32) are arranged between the first filters (31) and the third filters (33) in a stacked manner, the second filters (32) are arranged on the filter support (30) concentrically with the first filters (31), and the second filters (32) have the freedom of parallel rotation relative to the filter support (30).
5. A filter device according to claim 4, wherein said filter holder (30) has a first and a second direction of rotation opposite to each other,
the fan shape of the first filter (31) comprises a first leading edge (311) and a first trailing edge (312) in a first rotational direction;
the fan shape of the second filter (32) comprises a second leading edge (321) and a second trailing edge (322) in the first rotational direction.
6. A filter device according to claim 5, wherein the first filter (31) and/or the second filter (32) further comprises a first limiting rib (41), and the first limiting rib (41) protrudes from the first rear edge (312) or the second rear edge (322) in a direction away from the first filter (31) to form interference with the second front edge (321) of the adjacent second filter (32) in the first rotation direction, and the adjacent second filter (32) is driven to rotate in the first rotation direction by the first limiting rib (41).
7. A filter device according to claim 5 or 6, wherein the first filter (31) and/or the second filter (32) further comprises a second limiting rib (42), and the second limiting rib (42) protrudes from the center of the first filter (31) or the second filter (32) along a direction departing from the first filter (31) so as to form interference with the second rear edge (322) of the adjacent second filter (32) in the second rotation direction, so that the adjacent second filter (32) is driven to rotate along the second rotation direction by the second limiting rib (42).
8. A filter device according to claim 5, wherein the inner wall of the housing (10) further comprises a third limiting post (43) projecting towards the filters (31,32,33) to define the position of the second filter (32).
9. A filter device according to claim 1, wherein the drive motor (20) is further engaged with the outer edge or the center of the filter holder (30) via a transmission mechanism (21).
10. A filter device according to claim 4, wherein the outer arcuate edge of the first filter (31) is an interference fit with the inner edge of the filter holder (30).
11. A fill-in light comprising the filter device of any of claims 1-10.
12. A camera comprising a filter device according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120902638.XU CN215376038U (en) | 2021-04-28 | 2021-04-28 | Light filtering device, light supplementing lamp comprising same and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120902638.XU CN215376038U (en) | 2021-04-28 | 2021-04-28 | Light filtering device, light supplementing lamp comprising same and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215376038U true CN215376038U (en) | 2021-12-31 |
Family
ID=79628684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120902638.XU Active CN215376038U (en) | 2021-04-28 | 2021-04-28 | Light filtering device, light supplementing lamp comprising same and camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215376038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278000A (en) * | 2022-06-24 | 2022-11-01 | 维沃移动通信有限公司 | Image sensor, image generation method, camera module and electronic equipment |
-
2021
- 2021-04-28 CN CN202120902638.XU patent/CN215376038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115278000A (en) * | 2022-06-24 | 2022-11-01 | 维沃移动通信有限公司 | Image sensor, image generation method, camera module and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20020152656A1 (en) | Decorative lamp simulating the effect of an aquarium | |
| CN215376038U (en) | Light filtering device, light supplementing lamp comprising same and camera | |
| CN106152445B (en) | Annular induced draft device and air conditioner | |
| US3868501A (en) | Light boxes with fresnel lenses | |
| US9366415B2 (en) | Framing shutter system for a luminaire | |
| KR920006680A (en) | Variable color lighting device | |
| CN110933285A (en) | Camera shielding mechanism and electronic product | |
| CN102313956A (en) | Optical device automatic switching device and photography equipment | |
| CN218914670U (en) | Projection imaging device and lamp | |
| CN110572500B (en) | Electronic device | |
| JP2006228663A (en) | Daylighting device | |
| CN110933267A (en) | Monitoring camera | |
| JP2004534967A5 (en) | ||
| US5394212A (en) | Diaphragm with light blocking element | |
| CN102853279A (en) | Lamp | |
| CN218350686U (en) | Projection device | |
| WO2011118769A1 (en) | Lighting unit with switch | |
| CN202256827U (en) | Automatic optical element switching device and photographing equipment | |
| CN115370991A (en) | Small-size light ring assembly and stage lamp with same | |
| CN213814229U (en) | Filter switching structure and flashing light | |
| CN201203050Y (en) | Stage laser lamp with rotary type two-stage grating | |
| CN219140605U (en) | Projection device | |
| CN100498051C (en) | Reflector device for stage lamp | |
| JPH0766681B2 (en) | Vertical lighting device | |
| CN218819870U (en) | Meteor starry sky lamp and meteor light path system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |