JP3242109U - Star filters and filter assemblies - Google Patents

Abstract

A star filter and a filter that can generate starlight when light passes through, form a starlight effect in photography imaging, add a formal effect, and improve the fun of photography activities. Provide assembly. A star filter (1) includes a filter body (11), a star pattern structure is provided on the surface of the filter body, the star pattern structure (12) is engraved on the filter body, and the star pattern structure is: It includes one or more of a tetrastar structure 121 and an octastar structure 122 . The filter assembly includes a mirror ring, a press ring, and a star filter, which is the star filter described above. The filter assembly of the present invention can facilitate the use of star filters on imaging devices and improve application efficiency. [Selection drawing] Fig. 1

Description

The present invention relates to the technical field of imaging equipment, and more particularly to star filters and filter assemblies.

Filters are equipment that is often used in photographic activities. By attaching a filter in front of the lens of a photography device, it can partially filter the light rays that enter the lens or remove the reflected light, resulting in better photography. You can achieve the effect and get better imaging works.

At present, the most commonly used filters are mainly filters with reflective, quenching or both functions, which are mainly guaranteed to meet the needs of the filter function in shooting, and are relatively simple in terms of shooting formal effects. And boring. With the abundant pursuit of people's photography activities, photography enthusiasts are no longer satisfied with boring traditional filters, and new diversified and specialized filters are gaining more and more popularity.

SUMMARY OF THE INVENTION The purpose of the present invention is to provide a star filter to solve the problem that existing filters are simple and tedious in terms of formal effects. This star filter is imprinted with a star pattern structure, and the light rays that pass through the filter emit starlight, which can create a starlight effect in imaging and enhance the fun of shooting.

It is also an object of the present invention to provide a filter assembly including the above star filter, which can facilitate the use of the star filter in addition to the lens of a photographing device.

The purpose of the present invention is achieved by the following technical solutions.

A star filter comprising a filter body, the surface of said filter body being provided with several star pattern structures, said star pattern being imprinted on said filter body.

In a more preferred embodiment, the thickness of the star rays of said star pattern structure is between 0.1 mm and 1.0 mm, more preferably 0.3 mm.

In a further preferred embodiment, the center distance between adjacent said star pattern structures is 3.0-10.0 mm, more preferably 5.0 mm.

In a more preferred embodiment, the length of the star rays of said star pattern structure is 1.5-5.0 mm.

In preferred embodiments, the star filter according to any one of the above, wherein said star pattern structure comprises one or more of a tetrastar structure and an octastar structure.

In a further preferred embodiment, the star pattern structure consists of the tetrastar structure and the octastar structure, and the tetrastar structure and the octastar structure are distributed between phases.

In a further preferred embodiment, one octastar structure is arranged corresponding to each ray direction of four star rays of the tetrastar structure, and adjacent star ray directions of any one of the tetrastar structures One star ray on the octastar structure is parallel to the corresponding star ray on the tetrastar structure.

In a preferred embodiment, the outer shape of said filter body comprises a circle or a square.

In a preferred embodiment, the filter body has a thickness of 0.5-4.0 mm, more preferably 1.1 mm.

A filter assembly comprising a mirror ring, a press ring, and a star filter secured to said mirror ring via said press ring, said star filter being a star filter according to any one of the preceding claims.

Compared with the prior art, the present invention has the following advantages and beneficial effects.
The star filter of the present invention has a star pattern structure imprinted on the filter body, so that when light passes through the filter, it will generate starlight, and present a fluorescent effect like shining stars in imaging and videography. In addition to ensuring the filter has basic functions such as filtering, reflection, etc., it can also add formal effects to enhance the fun of shooting activities.

Here, the star pattern structure can be adopted as a combination of different star patterns or multiple types of star patterns, and due to limitations such as the dimensional characteristics of the star pattern structure, the corresponding star pattern structure is To make it possible to emit bright and distinctive starlight. The layout design can make the filter produce different starlight effects at different angles or different incident angles, especially the star filter under the interphase array layout structure of different star patterns can rotate the filter or change the shooting angle. , the starlight effect can be alternated between different star pattern effects to further improve the starlight specificity.

The filter assembly of the present invention comprises a star filter as described above, said star filter being fixed to the mirror ring via a press ring, in the form of an integral filter assembly in use, by methods such as screwing or magnetic attraction. Therefore, it can be installed in front of the lens of the photographing device, can be easily attached and detached, and can improve application efficiency.

It is a figure which shows the front view structure of the circular star filter which concerns on this embodiment in the form for implementing an idea. It is a figure which shows the side view structure of the circular star filter which concerns on this embodiment in the form for implementing an idea. It is a figure which shows the front view structure of the square star filter which concerns on this embodiment in the form for implementing an idea. It is a figure which shows the side view structure of the square star filter which concerns on this embodiment in the form for implementing an idea. FIG. 4 is a schematic diagram of the distributed local structure of the star pattern structure on the star filter of the present invention in the mode for carrying out the invention; FIG. 4 is a diagram showing the split structure of the filter assembly of the present invention in the mode for carrying out the invention; 1 is a configuration diagram for applying a filter assembly of the present invention in a mode for carrying out the invention to a video camera; FIG.

The technical solutions of the present invention are described in more detail below with reference to specific embodiments and drawings, but the protection scope and embodiments of the present invention are not limited thereto.

In describing specific embodiments, it should be noted that orientations or relationships indicated by terms such as "top," "bottom," "left," "right," etc. location, or the orientation or location normally placed when using the product of the invention, and terms such as "first", "second", etc. are merely used to facilitate the description of the invention. and are intended to simplify the description and are not intended to indicate or imply that the structure or element referred to must have a particular orientation, be configured in a particular orientation, or operate in a particular orientation; Accordingly, the invention should not be construed as limiting, nor should it be construed as indicating or implying relative importance.

Terms such as "mounting", "installation", "connection", "fixation", etc. shall be understood generally, unless expressly defined and limited to the contrary. For example, it may be a fixed connection, a removable connection, an integral connection, a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. may be connected to each other, or may be communication within the two elements or an interaction relationship between the two elements. A person of ordinary skill in the art can understand the specific meaning of the above terms herein according to the circumstances.

Example 1
The star filter 1 of the present invention includes a filter body 11, as shown in FIGS. 1-4. Specifically, the filter main body 11 is a lens capable of realizing an optical effect, and may be a lens made of a material such as an optical glass lens or a resin sheet.

Here, the outer shape of the filter body 11 can be set to a corresponding outer shape structure according to the needs of use, and may be a regular outer shape or an irregular outer shape. In the illustrated preferred embodiment, the outer shape of the filter body 11 is mainly designed to be circular or square, based on the general situation in which the star filter 1 is fitted in the imaging device, i.e. the corresponding star The outer shape of the filter 1 is circular or square, so that it can be used in combination with the existing photographing device, and the effect of use can be ensured.

The filter body 11 has a thickness h in the direction in which light rays are transmitted. Specifically, the thickness h of the filter body 11 may be set according to the necessity of the optical effect. good. In a preferred embodiment, the thickness h of the filter body 11 is 0.5 to 4.0 mm, specifically 0.5 mm, 0.6 mm, 0.7 mm, 0.75 mm, 0.8 mm, 1.0 mm. , 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, etc. In some specific preferred embodiments, the thickness h of the filter body 11 is Preferably 0.7 mm, the thickness of the filter body 11 is thinner and lighter in ensuring the optical effect, saving the lens material, making the whole star filter 1 cost lower and more convenient can be used for

A star pattern structure 12 is provided on the surface of the filter body 11 . Here, the star pattern structure 12 is a pattern structure having one central point and a plurality of star rays scattered and cleaved in different directions with this central point as the origin. A pattern structure in which lines converge around the center point.

When this star filter 1 is used for photographing, light rays pass through the star pattern structure 12 on the filter main body 11, and starlight can be generated based on the refraction action of the star pattern structure 12, which can be used for imaging and video photography. It can sometimes present a fluorescent effect like shining stars, so in addition to ensuring basic functions such as filtering and reflection, it can also add formal effects to improve the fun of shooting activities.

The star pattern structure 12 may be provided in an additional form on the surface of the filter body 11 by gluing or molded onto the filter body 11 by stamping. In a preferred embodiment, the star pattern structure 12 is stamped on the filter body 11 and is an integrally molded structure on the filter body 11 . Specifically, the engraving of the star pattern structure 12 on the filter body 11 may be engraving by etching or engraving by laser engraving, and the engraving method is not limited.

For example, in some specific preferred embodiments, the star pattern structure 12 is imprinted by etching, the process flow of which may include the following. That is, after preparing the filter body 11 and ultrasonically cleaning the filter body 11, exposure ink is applied to the surface of the filter body 11, dried at a high temperature, and then the filter body 11 is placed on a mask plate for exposure. After exposure, the filter body 11 is put into an etchant and etched to obtain an etched star pattern structure on the filter body 11. The ink and the etchant on the surface of the filter body 11 are thoroughly washed, taken out, and dried. , the filter body 11 having the star pattern structure 12 etched thereon can be obtained.

Specifically, a plurality of star pattern structures 12 provided on the filter body 11 may be provided, and the plurality of star pattern structures 12 may include only one type of star pattern, or may include two or more types of star patterns. may include a star pattern of Moreover, even within the same type of star pattern, the shape of the star rays may differ, or may differ between multiple star rays within a single star pattern structure 12 . It should be noted that the plurality of star pattern structures 12 may be arranged in a regular arrangement or may be arranged in an irregular arrangement, and specifically, may be provided according to the photographed starlight effect.

Specifically, the star pattern structure 12 may be a Samsung structure with three star rays, a Tetrastar structure with four star rays, a Five Star structure with five star rays, or a Defined as the corresponding multi-star structure, such as an octaster structure with eight star rays. In a preferred embodiment, the star pattern structure 12 includes one or more of tetrastar structures 121 and octastar structures 122, and the corresponding tetrastar structures 121 and octastar structures 122 are, as shown in FIG. It not only has good shaping properties, but also has a better starlight effect. A combination of a plurality of tetra-star structures and a plurality of octa-star structures 122 can be used.

Moreover, the preferred tetrastar structure 121 and octastar structure 122 are both regular star structures, and the angular spacing of the four star rays on the tetrastar structure 121 is the same, 90°. That is, the four star rays are evenly distributed about the center of the star pattern and have the same length, the angular spacing of the eight star rays on the octastar structure 122 is the same, 45°, That is, the eight star rays are evenly distributed around the center of the star pattern and have the same length. Thereby, the starlight effect of the corresponding star pattern structure 12 can be made uniform.

In a further preferred embodiment, as shown with reference to FIG. 5, the star ray of the star pattern structure 12 has a line thickness b that is the etched width of the star ray, the star ray line thickness b being , specifically set according to the desired starlight effect. In a preferred embodiment, the line thickness b of the star rays of the star pattern structure 12 is between 0.1 mm and 1.0 mm, specifically 0.1 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.1 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.1 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.1 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.2 mm 35 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc. In some specific preferred embodiments, the star pattern structure The line thickness b of the 12 star rays is preferably 0.3 mm, which can ensure the stable shaping of the star rays of the star pattern structure 12 and achieve a good star effect when photographing.

In a further preferred embodiment, as shown with reference to FIG. 5, among the plurality of star pattern structures 12, the center distance between adjacent star pattern structures 12 is L, and the pitch between the star pattern structures 12 is Specifically, it is set according to the desired starlight effect. In a preferred embodiment, the center distance L between adjacent star pattern structures 12 is 3.0-10.0 mm, specifically 3.0 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 5.0 mm, 3.0 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.0 mm. 5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm, etc., and in some specific preferred embodiments, between adjacent star pattern structures 12 The center distance L of is preferably 5.0 mm, which can achieve a starlight effect with moderate density and good conversion coupling.

In a further preferred embodiment, as shown with reference to FIG. 5, the star rays of the star pattern structure 12 have a length a, wherein the length a of the star rays is specifically for the desired star light effect. set accordingly. In a preferred embodiment, the star ray length a of the star pattern structure 12 is 1.5-5.0 mm, specifically 1.5 mm, 2.0 mm, 2.25 mm, 2.5 mm, 2.75 mm , 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, etc., and in some specific preferred embodiments, the star ray length a of the star pattern structure 12 is , preferably 2.25 mm, to ensure that a suitable star ray length is produced to form an effective star ray spot on the image.

Example 2
The star filter 1 of this embodiment is similar to that of Example 1. Further referring to FIGS. It is configured in combination with the octastar structure 122 .

Here, the tetrastar structure 121 and the octastar structure 122 are distributed between the phases, and the spacing between any tetrastar structure 121 and the adjacent octastar structure 122 is equal. Specifically, one octastar structure 122 is arranged corresponding to each ray direction of the four star rays of the tetrastar structure 121, and one of the star rays of the tetrastar structure 121 In ray direction, one star ray on adjacent octastar structure 122 is parallel to the corresponding star ray on tetrastar structure 121 . In the specific embodiment shown in FIG. 5, one octastar structure 122 is arranged in each of the four azimuths of up, down, left, and right to which the four star rays of the tetrastar structure 121 correspond. One star ray on 122 is directly opposite and concentric with the star ray of the tetrastar structure 121 in the corresponding direction, and the spacing between the four octastar structures 122 and the surrounding tetrastar structures 121 is equal.

Thus, based on the interphase array arrangement of the tetrastar structure 121 and the octastar structure 122, different starlight effects can be produced on the star filter 1 by the tetrastar structure 121 and the octastar structure 122 at different angles or different incident angles. can be generated. In particular, when the star filter 1 is rotated or the photographing angle is rotated and changed, the starlight effect can be alternately changed between the effect of the tetrastar structure 121 and the effect of the octastar structure 122. can further enhance the specificity of , and further improve the starlight effect in imaging.

Example 3
The filter assembly of the present invention includes a mirror ring 2, a press ring 3 and a star filter 1, as shown with reference to FIG. Here, the star filter 1 is the star filter of Example 1 or Example 2 mentioned above.

When assembling the filter assembly, the star filter 1 is restrained to the mirror ring 2 via the press ring 3, and the press ring 3 and the mirror ring 2 are engaged or screwed to hold and fix the star filter 1 in the thickness direction. , forming the entire filter assembly for ease of use.

When the filter assembly is attached to the video camera 300, as shown in FIG. and the video camera 300 can be used together. Here, the entire first filter assembly 100 may be attached to the tip of the lens 3001 of the video camera 300 by screwing the mirror ring 2 and the video camera 300, or a magnet may be attached to the mirror ring 2 of the first filter assembly 100, The entire first filter assembly 100 may be attached to the tip of the lens 3001 of the video camera 300 by magnetic attraction.

Furthermore, the first filter assembly 100 provided with the star filter 1 can be used in combination with other types of second filter assemblies 200 . Here, this other type of second filter assembly 200 may be a filter assembly similar in structure to the first filter assembly 100 in which the filter is a neutral density lens or a reflective lens, or the star filter 1 may be a filter assembly similar to the first filter assembly 100 It may be a filter assembly different from the star filter 1 of the 1 filter assembly 100 .

During use and installation, the first filter assembly 100 and the second filter assembly 200 are sequentially attached to the front end of the lens 3001 of the video camera 300 . In the specific embodiment shown, after the first filter assembly 100 is threaded or magnetically attached to the front end of the lens 3001 of the video camera 300, the second filter assembly 200 is threaded or magnetically attached to the first filter assembly 100. magnetically attracted. Of course, in some other embodiments, the assembly order between the first filter assembly 100 and the second filter assembly 200 is such that the second filter assembly 200 and the first filter assembly 100 are attached to the front end of the lens 3001 of the video camera 300 . can be interchanged as needed, or as appropriate depending on the function type of the filters therein.

The above embodiments are only preferred embodiments of the present invention, and are only intended to describe the technical solutions of the present invention in more detail. However, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments, and the scope and embodiments of protection of the present invention are not limited thereto. Any change, combination, deletion, substitution or modification without departing from the spirit and principle of the present invention shall fall within the scope of protection of the present invention.

1 star filter, 11 filter body, 12 star pattern structure, 121 tetrastar structure, 122 octastar structure, 2 mirror ring, 3 press ring, 100 first filter assembly, 200 second filter assembly, 300 video camera, 3001 lens.

Claims (10)

A star filter comprising a filter body, wherein a surface of said filter body is provided with several star pattern structures, said star pattern structures being imprinted on said filter body. 2. The star filter as claimed in claim 1, wherein the thickness of the star rays of the star pattern structure is 0.1-1.0 mm. 2. The star filter of claim 1, wherein the center distance between adjacent star pattern structures is 3.0-10.0 mm. The star filter of claim 1, wherein the length of the star rays of the star pattern structure is 1.5-5.0 mm. The star filter of claim 1, wherein the star pattern structure includes one or more of a tetrastar structure and an octastar structure. 6. The star filter according to claim 5, wherein the star pattern structure is composed of the tetrastar structure and the octastar structure, and the tetrastar structure and the octastar structure are distributed between phases. One of the octastar structures is arranged corresponding to each ray direction of four star rays of the tetrastar structure, and in each ray direction of one of the star rays of the tetrastar structure, the adjacent octastar structure is arranged. 7. A star filter according to claim 6, wherein one star ray on a star structure is parallel to a corresponding star ray on said tetrastar structure. 2. The star filter of claim 1, wherein the outer shape of said filter body comprises a circle or a square. 2. The star filter according to claim 1, wherein the filter body has a thickness of 0.5 to 4.0 mm. A star filter comprising a mirror ring, a press ring, and a star filter fixed to the mirror ring via the press ring, wherein the star filter is the star filter according to any one of claims 1 to 9. and filter assembly.

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