CN218450298U

CN218450298U - Camera and shutter structure

Info

Publication number: CN218450298U
Application number: CN202222645970.XU
Authority: CN
Inventors: 张国清
Original assignee: Wuxi Infisense Technology Co ltd
Current assignee: Wuxi Infisense Technology Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-02-03
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a camera, including sensitization chip and mobilizable shutter the shutter with be provided with the printing opacity lens that is used for the separation dust between the sensitization chip, just the printing opacity lens lean on to the shutter sets up. In this camera, when using, when the shutter forms the dirt along with activity many times, some dirt can move about to sensitization chip's direction, when activity to printing opacity lens, thereby by printing opacity lens separation stop on printing opacity lens. And the corresponding light rays can continuously pass through the light-transmitting lens after passing through the light-transmitting holes corresponding to the shutters, and then reach the photosensitive chip. Because the dust has been kept away from photosensitive chip by the separation in printing opacity lens department, and the printing opacity lens is kept away from photosensitive chip, and is close to the shutter to make the dust compare directly on photosensitive chip, it is little to photosensitive chip's formation of image influence, and then improves the formation of image effect, with the problem that the photosensitive chip imaging effect of solving the camera is not good effectively. The utility model also discloses a shutter structure.

Description

Camera and shutter structure

Technical Field

The utility model relates to a technical field of make a video recording, more specifically say, relate to a camera, still relate to a shutter structure.

Background

The infrared thermal imaging technology has developed over the years from the original mechanical scanning mechanism to today's all-solid, miniaturized, all-electronic, self-scanning staring and shooting, especially the uncooled technology, which has expanded the infrared thermal imaging technology from the long-term major military purpose to wide civilian fields such as industrial monitoring temperature measurement, law enforcement and drug control, safety precaution, medical hygiene, remote sensing, equipment advanced fault diagnosis and maintenance, marine rescue, astronomical exploration, night vision enhanced observers for vehicles, aircrafts and ship drivers, etc.

The uncooled infrared Focal Plane Array (FPA) technology is developed from small scale to medium and large scale 320 × 240, 640 × 480 and 1024 × 1024 arrays, and in the coming years, an ultra-large scale uncooled Focal Plane Array (FPA) is expected to be obtained, the size of a single pixel is also reduced from 50 μm (micrometer) to 8 μm, even smaller pixel size is expected, so that the focal plane sensitivity is further improved, but the requirement on the dustproof particle size of a product is higher while the pixel size is reduced, if the chip is a chip with the pixel size of 12 μm, when a particle foreign matter with the size larger than 8 μm is attached to a pixel point of an infrared chip, each particle foreign matter attached to the surface of the chip appears as an uneven light spot on an imaging display screen, the imaging quality and the satisfaction degree of a consumer for using the product are reduced, as shown in the following figure, because the dust foreign matter is scattered and attached to the surface of the chip, imaging failure caused by that part of infrared light cannot uniformly penetrate each pixel point is caused, the pixel point is smaller, and the particle foreign matter such as particles is higher in light sensing control requirement, so that a particle-caused imaging failure method for improving or reducing particle is needed.

When the shutter blade moves, debris, particle foreign matter, and the like caused by friction are directly attached to the surface of the chip, resulting in poor imaging.

To sum up, how to effectively solve the problem that the imaging effect of the photosensitive chip of the camera is not good is a problem that needs to be solved urgently by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the first objective of the present invention is to provide a camera, which can effectively solve the problem of poor imaging effect of the photosensitive chip of the camera, and the second objective of the present invention is to provide a shutter structure.

In order to achieve the first object, the present invention provides the following technical solutions:

a camera comprises a photosensitive chip and a movable shutter, wherein a light-transmitting lens used for blocking dust is arranged between the shutter and the photosensitive chip, and the light-transmitting lens is arranged close to the shutter.

In this camera, when using, when the shutter forms the dirt along with activity many times, some dirt can move about to sensitization chip's direction, when activity to printing opacity lens, thereby by printing opacity lens separation stop on printing opacity lens. And the corresponding light rays can continuously pass through the light-transmitting lens after passing through the light-transmitting holes corresponding to the shutters, and then reach the photosensitive chip. Because the dust has been kept off in printing opacity lens department, and the printing opacity lens is kept away from the sensitization chip, and is close to the shutter to make the dust compare directly on the sensitization chip, it is little to the formation of image influence of sensitization chip, and then improves the formation of image effect. In conclusion, the camera can effectively solve the problem that the imaging effect of the photosensitive chip of the camera is not good.

Preferably, the annular mounting piece is included, and a light passing channel is arranged in the middle of the annular mounting piece; the side of the annular mounting piece, which is far away from the photosensitive chip, is provided with the shutter and a driving device for driving the shutter to move; the annular mounting piece is close to one side of the photosensitive chip and is provided with the light-transmitting lens.

Preferably, the peripheral edge of the light-transmitting lens abuts against one side of the annular mounting part close to the photosensitive chip.

Preferably, one side of the annular mounting part, which is close to the photosensitive chip, is provided with the mounting slot hole, and the peripheral edge of the light-transmitting lens is attached to the wall of the mounting slot hole.

Preferably, one side of the annular mounting part, which is close to the photosensitive chip, is provided with a surrounding and blocking frame, and a mounting groove hole is formed in the surrounding and blocking frame.

Preferably, the enclosing and blocking frame is covered on the photosensitive chip, so that a closed cavity is formed in the enclosing and blocking frame.

Preferably, the drive means is an electromagnetic drive means.

Preferably, the photosensitive chip is an infrared photosensitive chip, and the light-transmitting lens is a lens allowing infrared light to pass through.

In order to achieve the second object, the present invention further provides a shutter structure, which includes an annular mounting member, wherein the middle of the annular mounting member is provided with a light passage; the light inlet side of the annular mounting piece is provided with a shutter and a driving device for driving the shutter to move; and a light-transmitting lens used for blocking dust is installed on the light-emitting side of the annular mounting piece. Since the shutter structure is mainly applied to the camera in the above embodiment, when in use, the light-transmitting lens is disposed close to the shutter between the shutter and the photosensitive chip, and the above camera has the above technical effects, the shutter structure should also have corresponding technical effects.

Preferably, the border pastes all around the printing opacity lens and leans on the light-emitting side of annular installed part, just the light-emitting side of annular installed part has the installation slotted hole, the border pastes all around the printing opacity lens leans on the pore wall of installation slotted hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structural view of a shutter structure according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a shutter structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the camera light propagation provided by the embodiment of the present invention.

The drawings are numbered as follows:

the device comprises a photosensitive chip 1, a shutter 2, a light-transmitting lens 3, an annular mounting piece 4, a driving device 5, dust 6, light 7, a chip surface 11, photosensitive pixels 12, a light-transmitting channel 41 and a surrounding frame 42.

Detailed Description

The embodiment of the utility model discloses camera, this camera can solve the not good problem of sensitization chip formation of image effect of camera effectively.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, fig. 1 is a schematic cross-sectional view of a shutter structure according to an embodiment of the present invention; fig. 2 is an explosion structure diagram of a shutter structure according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of the camera light propagation provided by the embodiment of the present invention.

In some embodiments, a camera is provided, and specifically, the camera mainly includes a photosensitive chip 1, a shutter structure and a light-transmitting lens 3, where a main component in the shutter structure is a shutter 2, a driving device 5 for driving the shutter 2 to move is also included, and of course, some other structures may also be included, and the specific structure may be set as required.

The light sensing chip 1 has a plurality of light sensing pixels 12 arranged in an array on a light receiving surface at one side thereof to reflect corresponding light by an electrical signal. Wherein the shutter 2 is movable to allow movement to enable selection of whether to allow the light 7 to pass or not to allow the light 7 to pass, and even the opening size can be changed to change the amount of light passing. When the light 7 is allowed to pass, the light 7 passes through the corresponding light-passing channel 41 of the shutter 2 and enters the light receiving side of the photosensitive chip 1.

The light-transmitting lens 3 is disposed between the shutter 2 and the light-sensing chip 1 for blocking the dust 6, and the light-transmitting lens 3 can transmit light, so that the light 7 passes through the light-transmitting channel 41 corresponding to the shutter 2, and further passes through the light-transmitting lens 3 to enter the light-receiving side of the light-sensing chip 1. It should be noted that, the transparent lens 3 can transmit light with any wavelength, and also can be the wavelength of the light 7 that needs to be captured by the light sensing chip 1, so that the transparent lens 3 can only pass the light 7 with the wavelength. If the light sensing chip 1 is an infrared light sensing chip, the light-transmitting lens 3 may only allow infrared light to pass through, but may also allow light 7 of other wavelengths besides infrared light to pass through.

Note that, the transparent lens 3 is used to block dust 6, that is, to prevent the dust 6 between the transparent lens 3 and the shutter 2 from entering between the transparent lens 3 and the photo sensor chip 1. That is, in the passage between the shutter 2 and the photosensitive chip 1, the light-transmitting lens 3 is disposed so as to be laterally spaced between the shutter 2 and the photosensitive chip 1, so as to be able to block dust 6. Such as the peripheral edge of the lens 3, and the wall of the channel, thereby achieving the effect of blocking dust 6.

Between the shutter 2 and the photosensitive chip 1, the light transmitting lens 3 is disposed close to the shutter 2 so as to be disposed away from the photosensitive chip 1. Parametrically, the distance between the transparent lens 3 and the shutter 2 can be made larger than the distance between the transparent lens 3 and the photosensitive chip 1 in the path of the light ray 7 to block the dust 6 at a position far from the photosensitive chip 1.

In this camera, when using, when shutter 2 forms the dirt along with activity many times, some dirt can move to photosensitive chip 1's direction, when moving to printing opacity lens 3, thereby by printing opacity lens 3 separation stop on printing opacity lens 3. And the corresponding light ray 7 will continue to pass through the light-transmitting lens 3 after passing through the corresponding light-passing channel 41 of the shutter 2, and then reach the photosensitive chip 1. Because dust 6 has been kept off in printing opacity lens 3 department, and printing opacity lens 3 is kept away from photosensitive chip 1, and is close to shutter 2 to make dust 6 compare and directly fall on photosensitive chip 1, it is little to photosensitive chip 1's formation of image influence, and then improve the formation of image effect. In conclusion, the camera can effectively solve the problem that the imaging effect of the photosensitive chip 1 of the camera is not good.

As shown in fig. 3, long-term experimental verification shows that the farther the particle foreign matter with the same size is from the chip surface 11, the smaller the influence of the dust 6 particles on imaging is, and the larger the distance is on the premise of not influencing imaging, the larger the particle diameter size that can be borne can be increased according to a corresponding proportion, so that the transparent lens 3 is arranged close to the shutter 2, and the imaging effect is better.

In some embodiments, as shown in fig. 1 and 2, the shutter structure includes a shutter 2, and further includes a ring-shaped mounting member 4, a light-passing channel 41 is disposed in the middle of the ring-shaped mounting member 4, and the shutter 2 moves to change the opening and closing degree of the light-passing channel 41, and thus the light-passing amount.

Wherein, the side of the ring-shaped mounting member 4 far away from the photosensitive chip 1, that is, the light inlet side, is provided with a shutter 2 and a driving device 5 for driving the shutter 2 to move; and a light-transmitting lens 3 is mounted on a side of the ring mount 4 close to the photo chip 1, i.e., a light-exiting side. So as to integrate the transparent lens 3 on the shutter structure for facilitating the later installation and making the transparent lens 3 as far away from the photosensitive chip 1 as possible.

In some embodiments, the driving device 5 may be an electromagnetic driving device, and specifically, may mainly include an electrical circuit board assembly, a magnetic coil assembly and a rotating movable mechanism assembly, wherein the electrical circuit board assembly supplies power to the magnetic coil assembly through a circuit board and communicates with an external control circuit, wherein the magnetic coil assembly controls magnetic field conversion through the circuit board, and wherein the rotating movable mechanism assembly drives the shutter 2 to move through the movable mechanism, and the shutter 2 may be installed on the fixed base in a centralized manner.

In some embodiments, in order to better block dust 6 in the transparent lens 3, the peripheral edge of the transparent lens 3 can be attached to one side of the annular mounting member 4 close to the photosensitive chip 1, so as to attach the transparent lens along the transparent direction, and because the transparent lens is attached in a single direction, the attaching force can be well controlled, so as to ensure the attaching effect, and further ensure the sealing effect, so as to better play the dustproof effect. The transparent lens 3 is a cover plate covering the light exit side of the light channel 41.

In some embodiments, in order to better protect the transparent lens 3 during installation and to better increase the dust-proof effect, it is preferable that the side of the ring-shaped installation member 4 close to the photosensitive chip 1 has an installation slot, and the transparent lens 3 is placed into the installation slot to protect the transparent lens 3, wherein the light-emitting side of the light-passing channel 41 is at the bottom of the installation slot. The edges of the periphery of the transparent lens 3 can be attached to the hole wall of the mounting groove hole, so that the sealing effect is further ensured.

In some embodiments, a surrounding frame 42 may be disposed on a side of the annular mounting member 4 close to the photosensitive chip 1, and the surrounding frame 42 is connected to the light emitting side of the annular mounting member 4, and may be integrally formed or welded. Mounting slots may be further formed in the enclosure frame 42.

In some embodiments, the blocking frame 42 may be disposed on the photosensitive chip 1 in a covering manner, so that a closed cavity is formed in the blocking frame 42, wherein the blocking frame 42 may abut against a circuit board on which the photosensitive chip 1 is mounted, so that the mounting is more convenient.

Based on the camera provided in the above embodiment, the utility model also provides a shutter structure, which includes the annular mounting member 4, the middle part of the annular mounting member 4 passes through the light channel 41; the light inlet side of the annular mounting piece 4 is provided with a shutter 2 and a driving device 5 for driving the shutter 2 to move; the light-emitting side of the annular mounting part 4 is provided with a light-transmitting lens 3 for blocking dust 6. Since this shutter structure is mainly applied to the camera head in the above-described embodiment, in use, the light-transmitting lens 3 is disposed against the shutter 2 between the shutter 2 and the photosensitive chip 1. The beneficial effects of the shutter structure please refer to the above embodiments.

Correspondingly, can be in the shutter structure, the border pastes all around and leans on in the light-emitting side of annular installed part 4, and the light-emitting side of annular installed part 4 has the installation slotted hole, and the border pastes the pore wall of attaching the slotted hole all around of printing opacity lens 3.

Correspondingly, in the shutter structure, the light-emitting side of the ring-shaped mounting member 4 has a surrounding frame 42, and the mounting slot is formed in the surrounding frame 42.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a camera, includes photosensitive chip (1) and mobilizable shutter (2), its characterized in that shutter (2) with be provided with printing opacity lens (3) that are used for separation dust (6) between photosensitive chip (1), just printing opacity lens (3) lean on to shutter (2) set up.

2. The camera head according to claim 1, characterized by comprising a ring-shaped mounting member (4), wherein the middle part of the ring-shaped mounting member (4) is provided with a light passing channel (41); the side, far away from the photosensitive chip (1), of the annular mounting piece (4) is provided with the shutter (2) and a driving device (5) for driving the shutter (2) to move; the annular mounting piece (4) is close to one side of the photosensitive chip (1) and is provided with the light-transmitting lens (3).

3. The camera according to claim 2, characterized in that the transparent lens (3) is abutted along its periphery against the side of the ring-shaped mounting (4) close to the photosensitive chip (1).

4. The camera according to claim 3, wherein the ring-shaped mounting member (4) has a mounting slot hole on a side close to the photosensitive chip (1), and the peripheral edge of the transparent lens (3) abuts against the wall of the mounting slot hole.

5. The camera according to claim 4, wherein the side of the ring-shaped mounting member (4) close to the photosensitive chip (1) is provided with a surrounding frame (42), and the mounting slot is formed in the surrounding frame (42).

6. The camera head according to claim 5, wherein the enclosure frame (42) covers the photosensitive chip (1) so as to form a closed cavity in the enclosure frame (42).

7. A camera head according to any one of claims 2 to 6, characterized in that the drive means (5) are electromagnetic drive means.

8. A camera according to claim 7, characterized in that the light sensitive chip (1) is an infrared light sensitive chip and the light transmissive lens (3) is a lens allowing infrared light to pass through.

9. A shutter construction, characterized by comprising an annular mounting (4), a light passage (41) passing through the middle of the annular mounting (4); the light inlet side of the annular mounting piece (4) is provided with a shutter (2) and a driving device (5) for driving the shutter (2) to move; and a light-transmitting lens (3) used for blocking dust (6) is installed on the light-emitting side of the annular mounting piece (4).

10. The shutter construction according to claim 9, characterized in that the transparent lens (3) abuts against the light exit side of the annular mounting element (4) along the peripheral edge, and the light exit side of the annular mounting element (4) has mounting slots, and the transparent lens (3) abuts against the walls of the mounting slots along the peripheral edge.