TWM539066U - Improved filter lens frame structure - Google Patents

Description

Filter frame improved structure

This creation relates to a modified structure of a filter frame, which is an improved structure of a filter frame having a removable filter cartridge.

Please refer to Fig. 9A, which is a specific embodiment of a filter holder of the prior art. A filter frame 90 includes a connecting member 91 and a fixing portion 94. The connecting member 91 has a rear threaded portion 93 for screwing with a lens of a camera. The fixing portion 94 is for holding and fixing a front filter 92. Please refer to Fig. 9B, which is a partial enlarged view of the X portion of Fig. 9A. When the current filter 92 is clamped and fixed to the filter holder 90 by the fixing portion 94, a gap 95 is formed between the front filter 92 and the filter holder 90. In the design of the filter holder 90, a gap 95 is necessary. Because without this gap 95, when the front filter 92 is to be inserted into the fixing portion 94 of the filter holder 90, the front filter 92 will directly rub against the filter holder 90, causing wear of the front filter 92. Please refer to Fig. 9C, which is a photograph taken using a specific embodiment of the filter holder of the prior art of Fig. 9A. Before the filter 92 used is a Neutral Density Filter with a high ND (Neutral Density) value, the camera lens will be photographed in the photograph (as shown in Figure 9C). The reflected image appears. The reason is that the high ND value neutral gray filter is a filter with very low transmittance (looks like a black lens), and its surface reflectance is relatively high, so when using a high ND value In the neutral gray filter, when the light leaks from the gap 95 into the high ND value between the neutral gray filter and the camera lens, the camera lens The leaked light illuminates the generated image, which is reflected back into the camera lens by the high ND value neutral gray filter, and is imaged on one of the camera's photosensitive elements, thus, in the photograph taken (such as As shown in Fig. 9C, there will be a reflected image of the camera lens.

Please refer to FIG. 9E and FIG. 9F, which are another specific embodiment of the filter frame of the prior art. The main structure of this embodiment is substantially the same as the embodiment shown in Fig. 9A, except that the connecting member 91 further includes a front threaded portion 96. The front threaded portion 96 is for fixing a rear filter 97 between the camera lens and the front filter 92. When the filter 97 is used after a neutral gray filter having a high value, since there is no gap between the rear filter 97 and the camera lens, there is no such light bleed from the gap to the high ND value. A problem occurs between the neutral grayscale filter and the camera lens. However, if the camera lens used is a super wide-angle lens, the corners of the photo will produce a vignetting (or vignette), resulting in darker corners and uneven photo brightness. The reason is that when a super wide-angle lens is used, to add a filter to the camera lens, the filter must be a thin-frame filter. Because if the thin frame filter is not used, the thickness of the general frame filter will be too thick, and the surrounding of the frame will cover part of the incident light, resulting in a vignetting angle in the four corners of the photo. The embodiments of the 9E and 9F embodiments can solve the problem that the light rays leak from the gap into the high ND value neutral gray filter and the camera lens, but are not suitable for use with the super wide angle camera lens.

In addition, in the embodiment of FIG. 9E and FIG. 9F, if the filter used is a circular polarizer filter, each time the circular polarizing filter needs to be rotated, the original polarized filter must be set. The position of the filter and the angle 92 before the filter 92 is removed to rotate the circular polarizing filter. After turning the circular polarizing filter, it is necessary to reset the position and angle of the front filter 92, which is inconvenient in use.

In view of this, the creators have developed a simple design that avoids the above shortcomings. Point, the use is more convenient, and has the advantage of low cost, in order to take into account the use of flexibility and economic considerations, so there is no such creation.

The technical problems to be solved by this creation are threefold: one, avoiding the problem that the light is leaked from the gap into the high ND value between the neutral gray filter and the camera lens; second, it is suitable for use with the camera lens of the super wide angle; Convenient for use with a circular polarizing filter.

To achieve the above objectives, the present invention provides an improved filter frame structure including a filter holder body and a filter cartridge. The filter frame body comprises: a card slot portion and a filter frame pivot portion. The card slot portion has a card slot opening. The filter frame pivoting portion is disposed on a rear side of the filter frame body, and the filter frame pivoting portion is pivotally connected to one lens of a camera. The filter cartridge has a filter fixing portion, and a rear filter is fixed to the filter fixing portion, wherein the filter cartridge can be inserted into the card slot portion from the opening of the card slot portion, and is fixed to the card slot portion.

In the implementation, the method further includes a connecting member, the connecting member has a connecting member pivoting portion and a connecting member threaded portion respectively, wherein the lens has a lens threaded portion, wherein the filter frame pivoting portion is connectable The pivoting portion of the piece is pivotally connected, and the threaded portion of the connecting piece is screwed to the threaded portion of the lens.

In the implementation, the filter frame pivoting portion includes a pivoting portion groove and at least one fixing portion, and the pivoting portion groove and the at least one fixing portion are pivotally connected to the connecting member pivoting portion.

In the implementation, the connector pivoting portion has a connector groove, wherein one of the at least one fixing portion of the filter frame pivoting portion is tightly coupled with the connector groove, thereby making the filter frame The pivoting portion is tightly coupled to the connecting member pivoting portion.

In implementation, wherein the filter attachment portion is rotatable relative to the filter bowl, thereby enabling the rear filter to rotate relative to the filter bowl.

In the implementation, the filter cartridge further includes a dialing portion, and the dialing portion is coupled with the filter fixing portion, and a user can rotate the rear filter relative to the filter cartridge by pushing the dial portion.

In the implementation, the card slot portion further includes a first sealing portion, and the first sealing portion allows the filter slot to be inserted into the card slot portion from the slot portion of the card slot portion and is fixed to the card slot portion. Hehe.

In the implementation, the filter cartridge further includes a second adhesive portion, and the second adhesive portion allows the filter cartridge to be inserted into the card slot portion from the slot portion of the card slot and is fixed to the slot portion. Hehe.

In the implementation, the front filter frame is pivotally connected to a front side of the filter frame body by a pivoting member, wherein the front filter frame includes a pair of right fixing portions and a left fixing portion. The right fixing portion and the left fixing portion respectively have at least one pair of right fixing grooves and left fixing grooves, wherein each pair of at least one pair of right fixing grooves and left fixing grooves is for fixing and holding a front filter.

In the implementation, the filter fixing portion has a filter thread portion, and the rear filter has a rear filter thread portion, wherein the filter thread portion can be screwed with the rear filter thread portion to fix the rear filter portion. In the filter fixing section.

In order to further understand the present invention, the preferred embodiments of the present invention, together with the drawings and figure numbers, detail the specific components of the present creation and the effects achieved thereby.

1‧‧‧Filter frame body

10‧‧‧ front side

11‧‧‧ Back side

12‧‧‧ card slot

120‧‧‧ card slot opening

121‧‧‧First Closed Department

13‧‧‧Filter frame pivoting

130‧‧‧First Fixed Department

130’‧‧‧First Fixed Department

131‧‧‧ pivot groove

132‧‧‧Second fixed department

132’‧‧‧Second fixed department

14‧‧‧ front filter frame

140‧‧‧right fixed part

141‧‧‧left fixed part

142‧‧‧ pivotal parts

143‧‧‧right fixed slot

144‧‧‧left fixed slot

2‧‧‧Filter匣

20‧‧‧Filter fixing section

20'‧‧‧ Filter Threads

21‧‧‧ rear filter

21'‧‧‧ rear filter

210‧‧‧ Rear filter thread

22‧‧‧Second Bonding Department

23‧‧‧ grip

24‧‧‧Rotating mechanism

25‧‧‧The Ministry of Movement

3‧‧‧Connecting parts

30‧‧‧Connector pivoting

31‧‧‧Connecting thread

40‧‧‧First front filter

41‧‧‧Second front filter

5‧‧‧ camera

50‧‧‧ lens

51‧‧‧ lens thread

90‧‧‧Filter frame

91‧‧‧Connecting parts

92‧‧‧ front filter

93‧‧‧Rear thread (external thread)

94‧‧‧Fixed Department

95‧‧‧ gap

96‧‧‧Front thread (internal thread)

97‧‧‧ Rear filter

Fig. 1 is a specific embodiment of a modified structure of a filter frame.

Fig. 2 is a combination of a specific embodiment of a filter frame improved structure and a camera.

Figure 3 is a further embodiment of the improved structure of the filter frame.

Fig. 4 is a combination of a specific embodiment of a filter frame improved structure and a camera.

Fig. 5 is a further embodiment of the improved structure of the filter frame.

Fig. 6 to Fig. 8 show a specific embodiment of a filter cartridge for creating a filter frame improved structure.

Figure 9A is a specific embodiment of a filter frame of the prior art.

Fig. 9B is a partial enlarged view of the X portion of Fig. 9A.

Figure 9C is a photograph taken using a specific embodiment of a filter holder of the prior art of Figure 9A.

The 9D drawing is a photograph taken by a specific embodiment of a filter frame improved structure.

Fig. 9E and Fig. 9F are another embodiment of the filter holder of the prior art.

Please refer to FIG. 1 , which is a specific embodiment of the improved structure of the filter frame. A filter holder includes a filter holder body 1 and a filter cartridge 2. The filter frame body 1 includes a card slot portion 12 and a filter frame pivot portion 13 . The card slot portion 12 has a card slot opening 120 and a first adhesion portion 121. The filter cartridge 2 includes a filter fixing portion 20, a second adhesion portion 22, and a grip portion 23. The rear filter 21 is fixed to the filter fixing portion 20. The grip 23 is convenient for a user to hold the filter 匣2. The filter cartridge 2 can be inserted into the card slot portion 12 from the card slot opening 120 and fixed to the card slot portion 12. The filter frame pivoting portion 13 is disposed on one of the rear sides 11 of the filter holder body 1. Please also refer to FIG. 2, which is a combination of a specific embodiment of a filter frame improved structure and a camera. In this embodiment, the filter holder body 1 is coupled to a camera 5 by a connector 3. The connecting member 3 includes a connecting member pivoting portion 30 and a connecting member threaded portion 31 respectively disposed on both sides of the connecting member 3. A camera 5 has a lens 50 having a lens threaded portion 51. The filter frame pivoting portion 13 is pivotally connected to the connecting member pivoting portion 30, and the connecting member threaded portion 31 is screwed to the lens threaded portion 51, whereby the filter frame body 1 is connected to the camera 5 by the connecting member 3 Combine. In this embodiment, the filter frame pivoting portion 13 includes a first fixing portion 130, a second fixing portion 132, and a pivot portion groove 131. The first fixing portion 130 is formed in a convex shape, so that the connecting member pivoting portion 30 is to be connected at an appropriate inclination angle by one of the first fixing portion 130 and the pivoting portion groove 131. The pivoting portion 30 is thereby placed into the pivoting groove 131, and one end of the connecting member pivoting portion 30 is fixed by the convex first fixing portion 130. The connector pivoting portion 30 has a connector groove. The front end of the second fixing portion 132 is a thin rod shape, and the thin rod-shaped front end of the second fixing portion 132 can be closely matched with the connecting groove of the connecting member pivot portion 30. The middle portion of the second fixing portion 132 has a thread. The end of the second fixing portion 132 is a cylindrical shape, and the user can screw the second fixing portion 132 into one of the threads of the filter frame body 1 so that the thin rod-shaped front end of the second fixing portion 132 is pivotally connected with the connecting member. The connector groove of the portion 30 is tightly coupled and fixed. Before the thin rod-shaped front end of the second fixing portion 132 and the connecting member groove of the connecting member pivoting portion 30 are tightly fitted and fixed, the filter frame body 1 can be rotated and adjusted to an appropriate angle, and then the second fixing portion 132 is The thin rod-shaped front end is tightly coupled to the connector groove of the connector pivot portion 30. Wherein the first close portion 121 and The second contact portion 22 is designed to be tightly fitted, so that the filter cartridge 2 is inserted into the slot portion 12 from the slot portion 120 and is fixed to the slot portion 12, and the slot portion opening 120 is tightly closed to avoid There is a problem that light leaks between the lens 50 and the rear filter 21, and the reflected image of the lens 50 appears in the photograph taken. In addition, the size of the rear filter 21 can be designed to be larger than that of the super wide-angle lens 50, so that the problem of vignetting at the four corners of the photo can be avoided when the ultra wide-angle lens 50 is used. Furthermore, the filter of the same function only needs to prepare one piece, and it is not necessary to buy different sizes of filters (filters with the same function and different sizes) for different lens sizes. In addition, the filter 匣 2 can be inserted and removed to make the filter more convenient, the removal speed is very fast, at some critical moments, avoid the missed opportunity to take pictures.

Please refer to FIG. 3, which is another embodiment of a modified structure of the filter frame. The main structure of the filter holder body 1 of this embodiment is substantially the same as that of the filter holder body 1 of the embodiment shown in FIG. 1, except that the filter holder body 1 further includes a front filter holder 14. The front filter frame 14 is pivotally connected to a front side 10 of the filter holder body 1 by a pivoting member 142. The front filter holder 14 includes a pair of right fixing portions 140 and a left fixing portion 141. Please also refer to FIG. 4, which is a combination of a specific embodiment of a filter frame improved structure and a camera. This combination diagram is substantially the same as the combination diagram shown in Fig. 2, except that the filter holder body 1 has the same structure as that of Fig. 3. The right fixing portion 140 and the left fixing portion 141 respectively include at least a pair of right fixing grooves 143 and a left fixing groove 144. A first front filter 40 and a second front filter 41 are respectively insertable and fixed to the two pairs of right fixing grooves 143 and the left fixing groove 144. The pivoting member 142 can be a screw.

Please refer to FIG. 5, which is a further embodiment of a filter holder body for creating a filter frame improved structure. The main structure of the filter holder body 1 of this embodiment is substantially the same as that of the filter holder body 1 of the embodiment shown in FIG. 1, but wherein the filter holder pivoting portion 13 includes a first The fixing portion 130', a second fixing portion 132', and a pivot portion groove 131. The first fixing portion 130' and the second fixing portion 132' are respectively two screw knobs. One end of the threaded frame body 1 has a thread. The other end is a slightly larger nut, which is convenient for the user to use, and can simultaneously fix the connecting member pivoting portion 30 to the pivoting portion groove 131.

Please refer to Fig. 6, which is another embodiment of a filter cartridge for creating a filter frame improved structure. The main structure of the filter cartridge 2 of this embodiment is substantially the same as that of the filter cartridge 2 of the embodiment shown in Fig. 1, except that one of the rear filter 21' has a rear filter thread portion 210, and the filter The fixing portion 20 has a filter 匣 thread portion 20'. The rear filter 21' is fixed to the filter fixing portion 20 by screwing the rear filter screw portion 210 to the filter thread portion 20'. The rear filter 21' can be a commercially available filter, and can be used with the filter 匣2 without additional design.

Please refer to Fig. 7, which is a further embodiment of a filter cartridge for creating a filter frame improved structure. The main structure of the filter cartridge 2 of this embodiment is substantially the same as that of the filter cartridge 2 of the embodiment shown in Fig. 1, but further includes a rotating mechanism 24 and a dialing portion 25. The rotation mechanism 24 rotates the filter fixing portion 20 with respect to the filter cartridge 2, whereby the filter 21 is rotated relative to the filter cartridge 2 after being fixed to the filter fixing portion 20. The dial portion 25 is interlocked with the filter fixing portion 20, and the user can rotate the rear filter 21 with respect to the filter bowl 2 by dialing the dial portion 25. After the embodiment, the filter 21 is adapted to use a circular polarizing filter. When the user rotates the filter 21 after the circular polarizing filter, the first front filter 40 and the second front that have been adjusted and fixed are not affected at all. Filter 41 (please refer to the first front filter 40 and the second front filter 41 of Fig. 4).

Please refer to Fig. 8, which is a further embodiment of a filter cartridge for creating a filter frame improved structure. The main structure of the filter cartridge 2 of this embodiment is substantially the same as that of the filter cartridge 2 of the embodiment shown in Fig. 7, except that a rear filter 21' has a rear filter thread portion 210, and The filter fixing portion 20 has a filter 匣 thread portion 20'. The rear filter 21' is fixed to the filter fixing portion 20 by screwing the rear filter screw portion 210 to the filter thread portion 20'. The rear filter 21' can be a commercially available filter, and can be used with the filter 匣2 without additional design.

In another embodiment, the filter holder body 1 can be directly pivotally connected to the lens 50 of the camera 5 by the filter frame pivoting portion 13.

Please refer to Fig. 9D, which is a photograph taken by a specific embodiment of a filter frame modification structure. Please also compare the photograph of Figure 9C (photograph taken by a specific embodiment of the filter holder of the prior art of Figure 9A). From the comparison of Fig. 9C and Fig. 9D, it is apparent that the photograph taken by the specific embodiment of the filter frame modified structure of the present invention does not have a reflected image of the camera lens as shown in Fig. 9C.

The foregoing is a specific embodiment of the present invention and the technical means employed, and many variations and modifications can be derived therefrom based on the disclosure or teachings herein, and can still be regarded as equivalent changes made by the inventive concept. The role of the spirit and the spirit of the text and the scope of the text should be considered within the technical scope of this creation.

In summary, this creation can indeed achieve the intended purpose, providing a filter frame improved structure, which is of great value for industrial use, and proposes a new type of patent application according to law.

1‧‧‧Filter frame body

10‧‧‧ front side

11‧‧‧ Back side

12‧‧‧ card slot

120‧‧‧ card slot opening

121‧‧‧First Closed Department

13‧‧‧Filter frame pivoting

130‧‧‧First Fixed Department

131‧‧‧ pivot groove

132‧‧‧Second fixed department

2‧‧‧Filter匣

20‧‧‧Filter fixing section

21‧‧‧ rear filter

22‧‧‧Second Bonding Department

23‧‧‧ grip

3‧‧‧Connecting parts

30‧‧‧Connector pivoting

31‧‧‧Connecting thread

Claims (10)

An improved structure of a filter frame, comprising: a filter frame body, comprising: a card slot portion, wherein the card slot portion has a card slot opening; and a filter frame pivoting portion is disposed on the filter frame a rear side of the body, the filter frame pivoting portion is for pivoting with a lens of a camera; and a filter cartridge, wherein the filter cartridge has a filter fixing portion, wherein a rear filter is fixed to the filter The filter fixing portion is configured to be inserted into the card slot portion from the opening of the card slot portion and fixed to the card slot portion. The filter frame improvement structure of claim 1, further comprising a connecting member, the connecting member has a connecting member pivoting portion and a connecting member threaded portion respectively, wherein the lens has a lens The threaded portion, wherein the filter frame pivoting portion is pivotally connected to the connecting member pivoting portion, and the connecting member threaded portion is screwed to the lens threaded portion. The filter frame improvement structure of the second aspect of the invention, wherein the filter frame pivoting portion comprises a pivoting portion groove and at least one fixing portion, the pivoting portion groove and the at least one fixing portion are It can be pivotally connected to the connecting member pivoting portion. The filter frame improved structure of claim 3, wherein the connecting member pivoting portion has a connecting piece groove, wherein one of the at least one fixing portion of the filter frame pivoting portion is And the groove of the connector is tightly coupled, thereby tightly coupling the filter frame pivot portion with the connector pivot portion. The filter frame modification structure of claim 1, wherein the filter fixing portion is rotatable relative to the filter cartridge, whereby the rear filter is rotatable relative to the filter cartridge. The filter frame improved structure of claim 5, wherein the filter cartridge further comprises a dialing portion, the dialing portion is interlocked with the filter fixing portion, and a user can be toggled The toggle rotates the rear filter relative to the filter bore. The filter frame improvement structure of claim 1, wherein the card slot portion further comprises a first sealing portion, the first sealing portion is configured to insert the filter cartridge into the card slot opening. When the groove portion is fixed to the card groove portion, the opening of the card groove portion is in close contact. The filter frame improvement structure of claim 7, wherein the filter cartridge further comprises a second adhesive portion, the second adhesive portion causes the filter cartridge to be inserted into the card from the opening of the card slot portion. When the groove portion is fixed to the card groove portion, the opening of the card groove portion is in close contact. The filter frame improvement structure of claim 1, further comprising a front filter frame pivotally connected to a front side of the filter frame body by a pivoting member, wherein The front filter frame includes a pair of right fixing portions and a left fixing portion, wherein the pair of right fixing portions and the left fixing portion respectively have at least one pair of right fixing grooves and left fixing grooves, wherein the at least one pair of right fixing grooves and the left side Each pair of fixing slots is used to securely hold a front filter. The filter frame improved structure of claim 1, wherein the filter fixing portion has a filter thread portion, and the rear filter has a rear filter thread portion, wherein the filter thread portion is The threaded portion of the rear filter can be screwed to fix the rear filter to the filter fixing portion.