Lens module and camera module comprising same

Abstract

A lens module according to an embodiment of the present invention comprises: a lens barrel; and multiple lenses arranged in the lens barrel, wherein the multiple lenses include an effective region and an ineffective region, and at least a portion of the multiple lenses is blackened in one region of the effective region.

Description

Lens module and camera module including same

[0001] The present invention relates to a lens module and a camera module including the same.

[0002] A DMS (Driver Monitoring System) camera monitors driver behavior. It analyzes the driver's eye movements, facial expressions, and head movements to detect driver alertness, drowsiness, and unstable driving behavior. This information is used to provide warnings to the driver or, if necessary, to integrate with the vehicle's control system to enhance safety.

[0003] For the efficient operation of DMS cameras, accurate image recognition and analysis algorithms are required, along with appropriate data management to protect driver privacy. This will enhance driver safety while simultaneously protecting their privacy.

[0004] Additionally, since the DMS camera monitors the driver by facing the driver, there is a problem that the driver feels uncomfortable with being watched by the camera.

[0005] The technical problem to be solved by the present invention is to provide a lens module and a camera module including the same.

[0006] In order to solve the above technical problem, a lens module according to an embodiment of the present invention includes a lens barrel; and a plurality of lenses arranged within the lens barrel, wherein the plurality of lenses include an effective area and an ineffective area, and at least some of the plurality of lenses are blackened in one area of ​​the effective area.

[0007] One area of ​​the effective area to be blackened can be formed from the boundary between the effective area and the ineffective area toward the center of the lens.

[0008] Among the plurality of lenses, a lens positioned closer to the object side may have a smaller area to be blackened than a lens positioned closer to the image sensor side.

[0009] Each of the plurality of lenses includes an object side and a sensor side, and an area processed in black on the object side may be smaller than an area processed in black on the sensor side.

[0010] The plurality of lenses may include a first lens, a second lens, and a third lens arranged along an optical axis, and an effective area of ​​the second lens may be smaller than an effective area of ​​the third lens, and a blackened area of ​​the second lens may be smaller than a blackened area of ​​the third lens.

[0011] The plurality of lenses may include a first lens, a second lens, and a third lens arranged along an optical axis, wherein an effective area of ​​the second lens may be smaller than an effective area of ​​the third lens, and a blackened area of ​​a sensor-side surface of the second lens may be smaller than a blackened area of ​​an object-side surface of the third lens.

[0012] In order to solve the above technical problem, a camera module according to the present embodiment includes a lens module; and an image sensor disposed below the lens module, wherein at least some of the plurality of lenses may be blackened in an area through which light incident on 0.6 fields or more and 1.0 fields or less of the image sensor passes.

[0013] It may include a filter positioned below the plurality of lenses.

[0014]

[0015] In order to solve the above technical problem, a lens module according to another embodiment of the present invention includes a lens barrel; and a plurality of lenses arranged within the lens barrel, wherein among the plurality of lenses, the lens arranged closest to the object side is made of a black material.

[0016] The lens made of the above black material may have a transmittance of 85% or more at a wavelength of 800 nm or more and 1100 nm or less.

[0017] The lens made of the above black material may contain a pigment of 0.2% or more and 0.3% or less.

[0018] In order to solve the above technical problem, a camera module according to the present embodiment includes a lens module; and an image sensor disposed below the lens module.

[0019] It may include a filter positioned below the plurality of lenses.

[0020] According to these embodiments, only the driver's face can be captured through the physical structure, and even if hacking occurs, areas other than the face cannot be identified, which can be advantageous for privacy protection.

[0021] Additionally, haze or black coating can be applied to some areas of the lens' effective diameter to prevent flare or ghosting and improve yield during lens assembly.

[0022] Additionally, according to the present embodiments, a lens made of black material can be applied to minimize the driver's discomfort of being monitored.

[0023] In addition, the optical characteristics of the optical system, including the lens made of black material, and stable performance in high and low temperature environments can be secured.

[0024] Figure 1 illustrates a photographed image according to the present embodiment.

[0025] Figure 2 is a drawing for explaining a lens according to the present embodiment.

[0026] Fig. 3 is a cross-sectional view of a lens module for explaining a lens according to the present embodiment.

[0027] Figure 4 is a cross-sectional view of a lens module according to another embodiment of the present invention.

[0028] FIG. 5 is a drawing for explaining a lens module according to another embodiment of the present invention.

[0029] FIG. 6 is a drawing for explaining a lens according to another embodiment of the present invention.

[0030] Figure 7 is a graph showing the transmittance according to wavelength of a lens according to another embodiment of the present invention.

[0031] FIG. 8 is a graph of MTF (Modulation Transfer Function) according to spatial frequency of a camera module according to another embodiment of the present invention.

[0032] FIG. 9 is a graph showing data on the diffraction MTF of a camera module according to another embodiment of the present invention.

[0033] Figure 10 is an exploded perspective view of a camera module according to the present embodiment.

[0034] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0035] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0036] In addition, terms (including technical and scientific terms) used in this embodiment may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which this embodiment belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0037] Additionally, the terms used in this embodiment are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0038] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0039] Additionally, in describing the components of this embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.

[0040] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

[0041] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.

[0042] In the description of the invention, the "object side" may mean a surface of the lens facing the object side with respect to the optical axis (OA), and the "sensor side" may mean a surface of the lens facing the imaging surface (image sensor) with respect to the optical axis. The "object side" may be the "object side," and the "sensor side" may be the "image side." A convex surface of a lens may mean a convex shape in the optical axis or the paraxial region, and a concave surface of a lens may mean a concave shape in the optical axis or the paraxial region. The radius of curvature, the center thickness, and the optical axis spacing between lenses described in the table for lens data may mean values ​​(unit: mm) in the optical axis. The vertical direction may mean a direction perpendicular to the optical axis, and the end of a lens or lens surface may mean the end of an effective area of ​​a lens through which incident light passes. The size of the effective diameter of the lens surface may have a measurement error of up to ±0.4 mm depending on the measurement method, etc. The above-mentioned near-axis region refers to a very narrow region near the optical axis, and is a region where the distance that a light ray falls from the optical axis (OA) is almost 0. Hereinafter, the meaning of the optical axis may include the center of each lens or a very narrow region near the optical axis.

[0043]

[0044] FIG. 1 illustrates a photographed image according to the present embodiment, FIG. 2 is a drawing for explaining a lens according to the present embodiment, and FIG. 3 is a cross-sectional view of a lens module for explaining a lens according to the present embodiment.

[0045] Referring to Fig. 1, in the DMS camera, the entire 16:9 image capture screen (S1) other than the driver sitting in the driver's seat is utilized as a recognition image to implement a recognition algorithm. In other words, the entire image (S1) captured by the image sensor through the lens is displayed on the display. Recently, cases of camera hacking have been increasing, and there is a risk of personal information about the inside of the vehicle or the driver being leaked. To solve this problem, the lens module according to the present embodiment and the camera module including the same apply a physical configuration and design to the lens so that the image itself received by the image sensor is limited to the driver's area (S2).

[0046] The camera module according to the present embodiment can capture at least one of an image and a video. The camera module may be a camera assembly. The camera module may be a camera unit. The camera module may include a lens driving device (100B). The lens driving device (100B) can drive the lens module (10) and move the lens module (10) in the optical axis direction.

[0047] The lens module (10) is coupled with the lens driving device (100B) and may include a plurality of lenses and a lens barrel (11). The lens module (10) may be alternatively expressed as a “lens,” a “lens unit,” or a “lens assembly.” The lens barrel (11) may accommodate a plurality of lenses. The outer circumferential surface of the lens barrel (11) may be formed with screw threads for coupling with a bobbin. The diameter of the hole on the object side of the lens barrel (11) may be smaller than the diameter of the hole on the sensor side.

[0048] The lens barrel (11) may include a plurality of lenses. The plurality of lenses may include a first lens (101), a second lens (102), and a third lens (103) arranged along the optical axis. The diameters of the plurality of lenses may increase from the object side to the sensor side. The effective diameters of the plurality of lenses may increase from the object side to the sensor side.

[0049] Each of the lenses may include an effective area (A2) and an ineffective area (A1). The effective area may be an area through which light incident on each of the lenses passes. In other words, the effective area (A2) may be defined as an effective area or effective diameter through which the incident light is refracted to implement optical characteristics. The ineffective area (A1) may be arranged around the periphery of the effective area (A2). The ineffective area (A1) may be an area through which effective light is not incident from a plurality of lenses. In other words, the ineffective area (A1) may be an area unrelated to the optical characteristics. In addition, an end of the ineffective area (A1) may be an area fixed to a lens barrel or the like that accommodates the lens.

[0050] The effective diameter may be the diameter of the effective area (A2) where effective light is incident on each lens. The effective diameter is the length in the direction (X, Y) orthogonal to the optical axis, and is the average of the effective diameter on the object side of each lens and the effective diameter on the sensor side. "Diameter of the lens surface" may mean "effective diameter of the lens." "Diameter of the lens" may be the diameter of the entire lens including the flange portion of the lens in addition to the effective area of ​​the lens. The flange may be a portion that protrudes perpendicular to the optical axis from the side of the lens so that the lens is coupled to the barrel. Effective light may not be incident on the flange.

[0051] Light incident on the effective area (A2) of the lens can be incident on the field of the image sensor (40). The field of the image sensor (40) can mean the entire area detected by the image sensor. The point where the image sensor (40) meets the optical axis (O) can be referred to as the 0 field (A in FIG. 3), and the point where light incident from the end of the effective area of ​​the lens is incident can be referred to as the 1 field (B in FIG. 3). The light incident on the image sensor (40) can be between the 0 field and the 1.0 field.

[0052] To allow the lenses to be coupled to the barrel, additional spacers may be placed between the flanges of different lenses. A first spacer (111) may be placed between the first lens (101) and the second lens (102). A second spacer (112) may be placed between the second lens (102) and the third lens (103). A third spacer (113) may be placed between the third lens (103) and the filter (20).

[0053] At least some of the plurality of lenses may be blackened in a portion of the effective area (A2). The portion of the effective area to be blackened may be formed from the boundary between the effective area and the ineffective area toward the center of the lens. The blackening of the lens may be accomplished by applying a black coating to the surface of the lens or etching a micro-pattern using a laser. The blackened portion of the lens may absorb light and prevent light from passing through.

[0054] FIG. 2(a) illustrates the object-side surface of the first lens (101) arranged closest to the object side among the plurality of lenses, FIG. 2(b) illustrates the object-side surface of the second lens (102) arranged between the first lens (101) and the third lens (103), and FIG. 2(c) illustrates the object-side surface of the third lens (103) arranged closest to the sensor side among the plurality of lenses. This is exemplary and may refer to the sensor side rather than the object-side surface of each lens. In the following description of the plurality of lenses, if there is no separate description of the object side or the sensor side, the description may apply to both the object side and the sensor side of the plurality of lenses.

[0055] The first lens (101) may include an effective area (A2) and an ineffective area (A1). The second lens (102) may include an ineffective area (A1) and a blackened area (A4) among the effective areas (A3+A4). The third lens (103) may include an ineffective area (A1') and a blackened area (A4') among the effective areas (A3'+A4'). The effective area (A2) of the first lens (101) may be smaller than the effective area (A3+A4) of the second lens (102). The effective area (A3+A4) of the second lens (102) may be smaller than the effective area (A3'+A4') of the third lens (103). The area of ​​the blackened area (A4) of the second lens (102) may be smaller than the area of ​​the blackened area (A4') of the third lens (103).

[0056] Referring to FIG. 3, among the plurality of lenses, a lens positioned closer to the object side may have a smaller blackened area than a lens positioned closer to the sensor side. The blackened area on the object side of each lens may be smaller than the blackened area on the sensor side. The blackened area (201) on the object side of the second lens (102) may be smaller than the blackened area (202) on the sensor side of the second lens (102). The blackened area (201) on the object side of the second lens (102) may be larger than the blackened area (202) on the sensor side of the second lens (102). The blackened area (203) on the object side of the third lens (103) may be smaller than the blackened area (204) on the sensor side of the third lens (103). The blackened area (203) on the object side of the third lens (103) may be larger than the blackened area (204) on the sensor side of the third lens (103). The blackened area (202) on the sensor side of the second lens (102) may be smaller than the blackened area (204) on the object side of the third lens (103).

[0057] The camera module may include an image sensor (40). The image sensor (40) can detect light and convert it into an electrical signal. The image sensor (40) can detect light that has sequentially passed through a plurality of lenses. The image sensor (40) may include a device capable of detecting incident light, such as a charge-coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).

[0058] At least some of the plurality of lenses may be blackened in an area through which light incident on a field greater than or equal to 0.6 and less than or equal to 1.0 of the image sensor (40) passes. Light incident through a plurality of lenses having a blackened portion of an effective area may be incident on an area (B-B') within a field greater than or equal to 0.6 of the image sensor (40). Light incident through a plurality of lenses having a blackened portion of an effective area may be incident on a central area (B-B') excluding peripheral areas (AB, A'-B') of the image sensor (40).

[0059] The central region (B-B') of the image sensor (40) may correspond to an area corresponding only to the driver's face or body area. The peripheral regions (AB, A'-B') excluding the central region (B-B') of the image sensor (40) may include information about the interior of the vehicle excluding the driver. Therefore, by blackening a portion of the effective region of the lens, the image sensor (40) can acquire images in a limited manner, thereby protecting privacy. In addition, the inflow of stray light reflected by the flange portion or spacer of the lens can be prevented, thereby preventing flare or ghosting phenomena. In addition, since the sensitivity decreases as the area through which actual light passes becomes smaller during lens design and assembly, the assembly yield of the camera module can be increased.

[0060] The camera module may include a filter (20). The filter (20) may be positioned between the last lens and the image sensor (40). The filter (20) may be positioned between the lens closest to the sensor side among the lenses of the lens unit and the image sensor (40). For example, the filter (20) may be positioned between the nth lens and the image sensor (40). The filter (20) may include an infrared filter or an infrared cut-off filter (IR cut-off). The filter (20) may pass light of a set wavelength band and filter light of a different wavelength band. When the filter (20) includes an infrared filter, it may block radiant heat emitted from external light from being transmitted to the image sensor (40). In addition, the filter (20) may transmit visible light and reflect infrared light.

[0061] The cover glass (30) is placed between the filter (20) and the image sensor (40), and protects the upper portion of the image sensor (40) and can prevent the reliability of the image sensor (40) from being deteriorated. The cover glass (30) can be removed. The cover glass (30) may be a protective glass.

[0062]

[0063] FIG. 4 is a cross-sectional view of a lens module according to another embodiment of the present invention, FIG. 5 is a drawing for explaining a lens module according to another embodiment of the present invention, FIG. 6 is a drawing for explaining a lens according to another embodiment of the present invention, FIG. 7 is a graph showing transmittance according to wavelength of a lens according to another embodiment of the present invention, FIG. 8 is a graph showing MTF (Modulation Transfer Function) according to spatial frequency of a camera module according to another embodiment of the present invention, and FIG. 9 is a graph showing data for diffraction MTF of a camera module according to another embodiment of the present invention.

[0064] The camera module according to the present embodiment can capture at least one of an image and a video. The camera module may be a camera assembly. The camera module may be a camera unit. The camera module may include a lens driving device (100B). The lens driving device (100B) can drive the lens module and move the lens module in the optical axis direction.

[0065] The lens module is coupled with a lens driving device (100B) and may include a plurality of lenses and a lens barrel (11). The lens module (10) may be alternatively expressed as a “lens,” a “lens unit,” or a “lens assembly.” The lens barrel (11) may accommodate a plurality of lenses. The outer circumference of the lens barrel (11) may be formed with screw threads for coupling with a bobbin. The diameter of the hole on the object side of the lens barrel (11) may be smaller than the diameter of the hole on the sensor side.

[0066] The lens barrel (11) may include a plurality of lenses. The plurality of lenses may include a first lens (101), a second lens (102), and a third lens (103) arranged along the optical axis. The diameters of the plurality of lenses may increase from the object side to the sensor side. The effective diameters of the plurality of lenses may increase from the object side to the sensor side.

[0067] To allow the lenses to be coupled to the barrel, additional spacers may be placed between the flanges of different lenses. A first spacer (111) may be placed between the first lens (101) and the second lens (102). A second spacer (112) may be placed between the second lens (102) and the third lens (103). A third spacer (113) may be placed between the third lens (103) and the filter (20).

[0068] Among the plurality of lenses, the lens closest to the object side may be made of a black material. Among the plurality of lenses, the lens closest to the object side may be made of a black transparent material. The first lens (101) may be made of a black material. The first lens (101) may be made of a black transparent material. FIGS. 5(a) and 6(a) illustrate a conventional transparent lens, and FIGS. 5(b) and 6(b) illustrate a lens and a lens module made of a black material, respectively.

[0069] The first lens (101) may be made of a plastic material. The first lens (101) may contain a resin of 99.7% or more and 99.8% or less, and preferably, 99.75%. The first lens (101) may contain a pigment of 0.2% or more and 0.3% or less, and preferably, 0.25%. The pigment contained in the first lens (101) may contain 0.2% of CISolvent Green 3, 0.025% of CISolvent Yellow 157', and 0.025% of CISolvent Red 52. The type and content of the pigment are merely exemplary and are not particularly limited thereto. Through this, the lens placed closest to the object side may be made of a black material to minimize the driver's discomfort of being monitored.

[0070] The first lens (101) may have a transmittance of 85% or more at a wavelength of 800 nm or more to 1000 nm or less, and preferably, the transmittance may be 87% or more. The first lens (101) may have a transmittance of 85% at a wavelength in the infrared (IR) region. This allows for good detection of light in the infrared region and stable acquisition of night vision and thermal images. An anti-reflection coating may be formed on one surface of the first lens (101) to improve transmittance. The first lens (101) may be formed of a heat-resistant material. The first lens (101) may have minimal changes in optical performance even at high temperatures.

[0071] Fig. 8 is a graph of the MTF (Modulation Transfer Function) according to the spatial frequency of the camera module according to the present embodiment, which has a value of 0.7 or higher even as the spatial frequency increases. Fig. 9 is a graph showing data on the diffraction MTF of the camera module according to the present embodiment. Defocusing Position is an indicator of how far the focus of the lens is from the plane of the image. Since the MTF graph is centered at the position where the Defocusing Position is 0, the camera module including the lens according to the present embodiment has high optical performance.

[0072]

[0073] Hereinafter, a camera module according to an embodiment of the present invention will be described with reference to the drawings.

[0074] Figure 10 is an exploded perspective view of a camera device according to an embodiment of the present invention.

[0075] The camera device (100A) may include a camera module.

[0076] The camera device (100A) may include a lens module (10). The lens module (10) may include at least one lens. The lens may be positioned corresponding to the image sensor (40). The lens module (10) may include a lens and a barrel. The lens module (10) may be coupled to a bobbin of a lens driving device (100B). The lens module (10) may be coupled to the bobbin (210) by screw coupling and / or adhesive. The lens module (10) may move integrally with the bobbin (210).

[0077] The camera device (100A) may include a filter (20). The filter (20) may block light of a specific frequency band from passing through the lens module (10) from being incident on the image sensor (40). The filter (20) may be arranged parallel to the xy plane. The filter (20) may be arranged between the lens module (10) and the image sensor (40). The filter (20) may be arranged on the sensor base (50). Alternatively, the filter (20) may be arranged on the base of the lens driving device (100B). The filter (20) may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor (40).

[0078] The camera device (100A) may include a sensor base (50). The sensor base (50) may be disposed between the lens driving device (100B) and the printed circuit board (60). The sensor base (50) may include a protrusion (51) on which a filter (20) is disposed. An opening may be formed in the portion of the sensor base (50) on which the filter (20) is disposed so that light passing through the filter (20) may be incident on the image sensor (40). An adhesive member (55) may couple or adhere the base of the lens driving device (100B) to the sensor base (50). The adhesive member (55) may additionally serve to prevent foreign substances from entering the interior of the lens driving device (100B). The adhesive member (55) may include at least one of an epoxy, a thermosetting adhesive, and an ultraviolet-curable adhesive.

[0079] The camera device (100A) may include a printed circuit board (60) (PCB, Printed Circuit Board). The printed circuit board (60) may be a substrate or a circuit board. A lens driving device (100B) may be disposed on the printed circuit board (60). A sensor base (50) may be disposed between the printed circuit board (60) and the lens driving device (100B). The printed circuit board (60) may be electrically connected to the lens driving device (100B). An image sensor (40) may be disposed on the printed circuit board (60). Various circuits, components, control units, etc. may be provided on the printed circuit board (60) to convert an image formed on the image sensor (40) into an electrical signal and transmit the converted signal to an external device.

[0080] The camera device (100A) may include an image sensor (40). The image sensor (40) may be configured to form an image by incident light passing through a lens and a filter (20). The image sensor (40) may be mounted on a printed circuit board (60). The image sensor (40) may be electrically connected to the printed circuit board (60). For example, the image sensor (40) may be coupled to the printed circuit board (60) using surface mounting technology (SMT). As another example, the image sensor (40) may be coupled to the printed circuit board (60) using flip chip technology. The image sensor (40) may be arranged such that its optical axis is aligned with that of the lens. That is, the optical axis of the image sensor (40) and the optical axis of the lens may be aligned. The image sensor (40) can convert light irradiated onto the effective image area of ​​the image sensor (40) into an electrical signal. The image sensor (40) can be any one of a CCD (charge coupled device), a MOS (metal oxide semi-conductor), a CPD, and a CID.

[0081] The camera device (100A) may include a motion sensor (70). The motion sensor (70) may be mounted on a printed circuit board (60). The motion sensor (70) may be electrically connected to a control unit (80) through a circuit pattern provided on the printed circuit board (60). The motion sensor (70) may output rotational angular velocity information due to the movement of the camera device (100A). The motion sensor (70) may include a two-axis or three-axis gyro sensor or an angular velocity sensor.

[0082] The camera device (100A) may include a control unit (80). The control unit (80) may be disposed on a printed circuit board (60). The control unit (80) may be electrically connected to the AF coil and the OIS coil of the lens driving device (100B). The control unit (80) may individually control the direction, intensity, amplitude, etc. of the current supplied to the AF coil and the OIS coil. The control unit (80) may control the lens driving device (100B) to perform an autofocus function and / or an image stabilization function. Furthermore, the control unit (80) may perform autofocus feedback control and / or image stabilization feedback control for the lens driving device (100B).

[0083] The camera device (100A) may include a connector (90). The connector (90) may be electrically connected to a printed circuit board (60). The connector (90) may include a port for electrically connecting to an external device.

[0084]

[0085] Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from the essential characteristics of the above-described description. Therefore, the disclosed methods should be considered illustrative rather than restrictive. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. Lens barrel; and comprising a plurality of lenses arranged within the lens barrel; The above plurality of lenses include an effective area and an ineffective area, A lens module wherein at least some of the plurality of lenses are blackened in one area of the effective area.

2. In paragraph 1, A lens module in which an area of the effective area to be blackened is formed from the boundary between the effective area and the ineffective area toward the center of the lens.

3. In paragraph 1, A lens module in which a lens positioned closer to the object side among the plurality of lenses has a smaller blackened area than a lens positioned closer to the image sensor side.

4. In paragraph 1, Each of the above plurality of lenses includes an object side and a sensor side, A lens module in which the blackened area on the object side is smaller than the blackened area on the sensor side.

5. In paragraph 1, The above plurality of lenses include a first lens, a second lens, and a third lens arranged along the optical axis, The effective area of the second lens is smaller than the effective area of the third lens, A lens module in which the blackened area of the second lens is smaller than the blackened area of the third lens.

6. In paragraph 1, The above plurality of lenses include a first lens, a second lens, and a third lens arranged along the optical axis, The effective area of the second lens is smaller than the effective area of the third lens, A lens module in which the black-processed area on the sensor side of the second lens is smaller than the black-processed area on the object side of the third lens.

7. The lens module of paragraph 1; and including an image sensor positioned below the lens module; A camera module in which at least some of the plurality of lenses are blackened in an area through which light incident on a field greater than or equal to 0.6 and a field less than or equal to 1.0 of the image sensor passes.

8. In paragraph 7, A camera module including a filter positioned below the plurality of lenses.

9. Lens barrel; and comprising a plurality of lenses arranged within the lens barrel; Among the above multiple lenses, the lens placed closest to the object side is a lens module made of a black material.

10. In paragraph 9, A lens module made of the above black material having a transmittance of 85% or more at a wavelength of 800 nm or more to 1100 nm or less.

Images