Color brightness meter capable of preventing lens from being damaged

Abstract

The utility model discloses a lens loss prevention color brightness meter comprising a color brightness meter body, the side surface of the color brightness meter body is fixedly connected with a lens, the side surface of the lens is magnetically connected with a protective cover, one side of the protective cover close to the lens is fixedly connected with a magnetic suction ring, and one side of the protective cover far away from the lens is in threaded connection with a front end cover. The side surface of the front end cover is fixedly connected with a movable seat; the side surface of the movable seat is hinged with a connecting arc plate; through the double-layer physical protection design of the dustproof cover plate and the sapphire glass, the safety and the measurement precision of the lens in a complex environment are both considered, in a non-working state, the dustproof cover plate serves as an outermost layer barrier to thoroughly prevent pollutants such as dust and liquid from invading a notch of the front end cover, and the protection cover fixed through magnetic attraction is attached to the lens through the sapphire glass, so that the safety of the lens is improved. The surface of the lens is prevented from being scratched, the integrity of an optical transmission path can be maintained, and the lens can be directly used without being disassembled in daily measurement.

Description

Technical Field

[0001] This utility model relates to the field of color luminance meter technology, specifically a lens-protected color luminance meter. Background Technology

[0002] A colorimeter is an optical instrument used to simultaneously measure the color parameters and brightness values ​​of a light source or display device. Its core function is to analyze the spectral distribution of a target object using a built-in optical sensor and a filtering system, thereby outputting color coordinates (CIE x, y), color temperature (K), color gamut coverage, and brightness (cd / m²). 2 This equipment, which measures key data such as color reproduction accuracy and brightness consistency, is widely used in display manufacturing (such as OLED and LCD), projector calibration, lighting engineering (LED light source testing) and film and television production. It ensures that the color reproduction accuracy and brightness consistency meet industry standards, and its measurement results directly affect the product visual performance evaluation and quality control process.

[0003] The lens protection designs of some existing color luminance meters generally have the following shortcomings: the exposed part of the lens lacks multiple layers of physical isolation and relies only on a single protective cover or simple lens cover, resulting in weak dust protection and impact resistance. Especially in dusty, humid or high-vibration environments, the lens is easily scratched, the coating is peeled off or the internal optical components are misaligned due to the intrusion of contaminants or external impacts; the buffer design is limited to the hard shell, and there is no energy dispersion mechanism for axial and radial impacts on the lens. When dropped, the impact force is directly transmitted to the core area of ​​the lens. Utility Model Content

[0004] The purpose of this invention is to provide a lens-protected color luminance meter in order to solve the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lens-protected colorimeter, comprising: a colorimeter body, a lens fixedly connected to the side of the colorimeter body, a protective cover magnetically connected to the side of the lens, a magnetic ring fixedly connected to the side of the protective cover near the lens, a front cover threadedly connected to the side of the protective cover away from the lens, a movable seat fixedly connected to the side of the front cover, a connecting arc plate hinged to the side of the movable seat, an arc-shaped bracket fixedly connected to the side of the connecting arc plate, and a limit nut screwed onto the top of the movable seat.

[0006] As a further embodiment of this utility model: a buffer rod is fixedly connected to the outer side of the protective cover, a connecting ring is fixedly connected to the side of the buffer rod, and an elastic buffer plate is fixedly connected to the outer side of the connecting ring.

[0007] As a further improvement of this utility model: a dustproof cover is snapped into the inner side of the arc-shaped card holder, a sapphire glass is embedded in the protective cover, and a handle is fixedly connected to the top of the colorimeter body.

[0008] As a further improvement of this utility model: a magnetic groove is provided on the side of the lens to magnetically attract the magnetic ring; the movable seat, the connecting arc plate and the arc-shaped card holder are fixedly connected to both sides of the front end cover; a card block is fixedly connected to the side of one set of the arc-shaped card holders; and a card groove matching the card block is provided on the side of the other set of the arc-shaped card holders.

[0009] As a further embodiment of this utility model: the arc-shaped bracket rotates on the side of the movable seat via the connecting arc plate, so that it is located directly in front of the front end cover, and a threaded rod is fixedly connected above the movable seat and fixedly connected to the inner rotating shaft of the movable seat.

[0010] As a further improvement of this utility model: the number of elastic buffer plates is arranged in multiple sets surrounding the outside of the connecting ring, the size of the dust cover is larger than the size of the groove in the front cover, and the size of the sapphire glass matches the size of the inner diameter of the protective cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention employs a dual-layer physical protection design with a dust cover and sapphire glass, balancing the lens's safety and measurement accuracy in complex environments. In non-working conditions, the dust cover acts as the outermost barrier, completely preventing dust, liquids, and other contaminants from entering the front cover slot. The magnetically secured protective cover adheres to the lens via the sapphire glass, preventing scratches on the lens surface and maintaining the integrity of the optical transmission path, ensuring that it can be used directly without disassembly for daily measurements.

[0013] When higher precision is required, the magnetic ring can be quickly separated to detach the sapphire glass from the optical path. The operation is flexible and does not damage the lens structure. The elastic buffer plate and buffer rod on the outside of the protective cover form a surrounding mechanical shock absorption system, which effectively absorbs the energy of drops or collisions and reduces the risk of impact to the lens. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a lens-protected color luminance meter according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the protective cover connection in the lens-protecting colorimeter described in this utility model;

[0016] Figure 3 This is a schematic diagram of the side structure of the protective cover in the lens-protecting colorimeter described in this utility model;

[0017] Figure 4 This is a schematic diagram of the buffer mechanism in a lens-protected colorimeter according to the present invention;

[0018] Figure 5 This is a schematic diagram of the dust cover fixing mechanism in a colorimeter for lens damage prevention as described in this utility model.

[0019] In the diagram: 1. Color luminance meter body; 2. Handle; 3. Lens; 4. Protective cover; 5. Magnetic ring; 6. Front cover; 7. Movable base; 8. Connecting arc plate; 9. Arc-shaped bracket; 10. Limit nut; 11. Locking block; 12. Locking slot; 13. Dustproof cover; 14. Sapphire glass; 15. Buffer rod; 16. Connecting ring; 17. Elastic buffer plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5In this embodiment of the present invention, a lens-protected color luminance meter includes: a color luminance meter body 1, to which a lens 3 is fixedly connected by bolts; the observation end of the lens 3 is provided with an annular magnetic groove, which is magnetically attracted to a magnetic ring 5 on the inner side of a protective cover 4; a front cover 6 is threaded to the end of the protective cover 4 away from the lens 3; movable seats 7 are symmetrically welded to both sides of the front cover 6; each movable seat 7 is connected to a connecting arc plate 8 via a hinge shaft; an arc-shaped bracket 9 is welded to the outer side of the connecting arc plate 8; and a threaded rod is provided on the top of the movable seat 7, which locks the rotation angle of the connecting arc plate 8 by screwing in a limiting nut 10.

[0023] At least four buffer rods 15 are welded to the outer periphery of the protective cover 4. The buffer rods 15 are radially distributed and their ends are fixed by connecting rings 16. Four sets of elastic buffer plates 17 are evenly welded to the outer periphery of the connecting rings 16. The elastic buffer plates 17 are made of arc-shaped spring steel sheets, and their outer edges maintain a gap with the outer shell of the protective cover 4, so as to absorb energy through deformation when the equipment is impacted.

[0024] The inner side of the arc-shaped bracket 9 is provided with a slot for nesting and installing the dust cover 13. The dust cover 13 is a circular metal plate with a diameter larger than the diameter of the central slot of the front cover 6, ensuring that it completely covers the slot when closed. The inner cavity of the protective cover 4 is fitted with sapphire glass 14, the outer diameter of which is interference-fitted with the inner diameter of the protective cover 4. The position of the sapphire glass 14 is between the lens 3 and the dust cover 13, forming a double layer of protection.

[0025] In the arc-shaped brackets 9 on both sides of the front cover 6, a protruding card block 11 is welded on one side, and a card groove 12 matching the shape of the card block 11 is opened on the other side. When the dust cover 13 is fixed by the arc-shaped brackets 9, the card block 11 is embedded in the card groove 12 to achieve mechanical locking of the dust cover 13.

[0026] The working principle of this utility model is as follows:

[0027] When the color luminance meter body 1 is not in working state, the dust cover 13, as the outermost protective layer, covers the slot of the front cover 6 through the closed state of the arc-shaped bracket 9, blocking the intrusion of external dust. At this time, the protective cover 4 is tightly attracted to the magnetic groove on the side of the lens 3 through the magnetic ring 5, so that the embedded sapphire glass 14 is tightly attached to the surface of the lens 3, forming a second layer of physical protection. With its high hardness and high light transmittance, the sapphire glass 14 protects the lens 3 from scratches or impacts, and ensures that the optical transmittance is not affected. When the device is impacted, the buffer rod 15 on the outside of the protective cover 4 and the surrounding elastic buffer plate 17 absorb energy through deformation, reducing the vibration transmitted to the lens 3.

[0028] When starting the measurement, the operator rotates the limit nut 10 to release the fixation of the movable seat 7, and then pushes the connecting arc plate 8 to drive the arc-shaped bracket 9 to unfold outward around the movable seat 7. The unfolding action of the arc-shaped bracket 9 synchronously drives the dust cover 13 to move outward, causing the dust cover 13 to fall off and completely expose the slot of the front cover 6. At this time, the protective cover 4 is still attached to the surface of the lens 3 by the magnetic ring 5. The sapphire glass 14, as the direct protective layer of the lens 3, remains in place. Light can penetrate the sapphire glass 14 and enter the lens 3 for color and brightness measurement.

[0029] For higher precision measurements, the magnetic ring 5 of the protective cover 4 can be manually separated, allowing the sapphire glass 14 to detach from the lens 3 along with the protective cover 4, at which point the lens 3 is completely exposed for operation.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lens-damage-resistant colorimeter, characterized in that, include: A color luminance meter body (1) is provided. A lens (3) is fixedly connected to the side of the color luminance meter body (1). A protective cover (4) is magnetically connected to the side of the lens (3). A magnetic ring (5) is fixedly connected to the side of the protective cover (4) near the lens (3). A front cover (6) is threadedly connected to the side of the protective cover (4) away from the lens (3). A movable seat (7) is fixedly connected to the side of the front cover (6). A connecting arc plate (8) is hinged to the side of the movable seat (7). An arc-shaped bracket (9) is fixedly connected to the side of the connecting arc plate (8). A limit nut (10) is screwed onto the top of the movable seat (7).

2. A lens-damage-resistant colorimeter according to claim 1, characterized in that, A buffer rod (15) is fixedly connected to the outside of the protective cover (4), a connecting ring (16) is fixedly connected to the side of the buffer rod (15), and an elastic buffer plate (17) is fixedly connected to the outside of the connecting ring (16).

3. A lens-damage-resistant colorimeter according to claim 2, characterized in that, The arc-shaped card holder (9) is fitted with a dust cover (13) on its inner side, and the protective cover (4) is inlaid with sapphire glass (14). A handle (2) is fixedly connected to the top of the color luminance meter body (1).

4. A lens-damage-resistant colorimeter according to claim 1, characterized in that, The lens (3) has a magnetic groove on its side that magnetically attracts the magnetic ring (5). The front cover (6) has the movable seat (7), the connecting arc plate (8) and the arc-shaped card holder (9) fixedly connected to both sides. One set of the arc-shaped card holder (9) has a card block (11) fixedly connected to its side, and the other set of the arc-shaped card holder (9) has a card groove (12) that matches the card block (11) on its side.

5. A lens-damage-resistant colorimeter according to claim 1, characterized in that, The arc-shaped bracket (9) rotates on the side of the movable seat (7) via the connecting arc plate (8) so that it is located directly in front of the front end cover (6). A threaded rod is fixedly connected above the movable seat (7) and is fixedly connected to the inner rotating shaft of the movable seat (7).

6. A lens-damage-resistant colorimeter according to claim 3, characterized in that, The elastic buffer plate (17) is arranged in multiple sets around the outside of the connecting ring (16), the size of the dust cover (13) is larger than the size of the inner groove of the front cover (6), and the size of the sapphire glass (14) matches the size of the inner diameter of the protective cover (4).

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