TWM561224U - Filter frame with defogger - Google Patents

Abstract

A filter frame having a demisting device includes a frame body, a front filter clamping portion, a demisting device, and a power supply device. The frame body has an inner surface and an outer surface, and the frame body includes a surrounding cavity member and an adapter. The surrounding cavity member includes a pivoting portion at one of the rear ends of the surrounding cavity member. The adapter includes an adapter pivoting portion and an adapter screwing portion respectively located at the front end and the rear end of the adapter. The adapter pivoting portion is pivotally connected to the surrounding pivoting portion of the surrounding cavity member, and the adapter screwing portion is for screwing with a lens screwing portion of one of the lenses of the camera, the lens having a front optical lens . The front filter clamping portion includes a left extension plate and a right extension plate respectively extending from the left and right sides of the front end of the surrounding cavity member, and one of the front surface of the left extension plate and one of the right extension plate respectively. One of the left fixing members and the right fixing member on the front surface, the left fixing member and the right fixing member are for holding a front filter. A cavity is formed between the front filter, the inner surface of the frame body and the front optical lens. The demisting device is disposed on the frame body between the inner surface of the frame body and the cavity. The power supply device is electrically connected to the demisting device.

Description

Filter frame with defogging device

The present invention relates to a filter frame having a demisting device, and more particularly to a filter frame having a temperature controlled defogging device.

For photographers who like to shoot twilight photography, night photography or starry sky photography, lens fogging is a common problem. Please refer to FIG. 10, which is a combination diagram of a heating belt and a camera according to the prior art. A heating belt 93 is fixed to the front end of a lens 91 of a camera 90, and is fixed in such a manner that the inner and outer surfaces of the heating belt 93 are respectively provided with a devil felt. The heating belt 93 is electrically connected to a power supply device 94. The power supply device 94 supplies power to raise the temperature of the heating belt 93, thereby heating the front end of the lens 91 surrounded by the heating belt 93 to achieve the lens 91. One of the front ends of the front optical lens 92 defogging effect. However, since the heating belt 93 is fixed to the outer surface of the front end of the lens 91, heat is easily dissipated from the heating belt 93, so that the power consumption is excessive. Moreover, since the optical lens 92 is in contact with the outside air before the front end of the lens 91, the heat needs to be transmitted from the outer surface of the front end of the lens 91 to the optical lens 92 before the front end of the lens 91, and the heating rate is too slow, resulting in a defogging rate too Slow, so often missed the opportunity to shoot.

Further, the focus ring of many lenses 91 is disposed at the front end of the lens 91, that is, near the position where the heating belt 93 is fixed. After the heating belt 93 is fixed, it is not easy to manually use the focus ring. Or the focus ring has been fixed with manual focus first, but the heating belt 93 is fixed to the lens. At the front end of 91, it is easy to accidentally touch the focus ring, and then have to manually focus again.

Please refer to FIG. 11 , which is a cross-sectional view of a combination of a heating belt and a camera and a frame according to the prior art. The main structure of the embodiment shown in FIG. 11 is substantially the same as the structure of the embodiment shown in FIG. 10, but further includes a frame 95, a first front filter 96 and a second front filter. 97. The frame 95 is screwed to the lens 91. A cavity 98 is formed in the first front filter 96, the frame 95 and the front optical lens 92, and a gap 99 is formed between the frame 95 and the first front filter 96. The first front filter 96 and the second front filter 97 are respectively fixed to the frame 95. In order to avoid the weight of the stand being overweight when the camera 90 is placed on a tripod (not shown), the frame 95 of the prior art is generally constructed of a plastic material to reduce weight. The thermal conductivity of the plastic material is not as good as that of the metal. Therefore, when the heating belt 93 is heated, heat can be conducted to the front optical lens 92 through the lens 91, but it is difficult to directly heat the first front filter 96, and The heat can not be directly heated to the air of the cavity 98, so that the heating efficiency of the first front filter 96 is too poor to achieve the function of defogging the first front filter 96, and the second front filter cannot be achieved. 97 defogging function. In addition, if it is attempted to surround the heating belt 93 around the frame 95 (not shown), the heating belt 93 is bound to be fixed around the first front filter 96 and the second front filter 97, such that It is not only very difficult to fix, but each time the first front filter 96 or the second front filter 97 is individually adjusted, the heating belt 93 has to be re-fixed once; after the heating belt 93 is fixed, it may be too prominent. The range of the lens angle of view 991 in Fig. 11 is obscured, resulting in a vignetting of the photograph taken.

In view of this, the creator has developed a simple assembly design, which can avoid the above-mentioned shortcomings, is easy to install, and has the advantages of low cost, and takes into account the considerations of flexibility and economy.

The technical problem to be solved by this creation is how to directly and efficiently heat the optical lens before the lens, so that the heating rate is increased, the heat dissipation rate can be reduced, and the design is convenient to use.

In order to solve the foregoing problems, in order to achieve the desired effect, the present invention provides a filter frame having a demisting device, comprising: a frame body, a front filter clamping portion, a demisting device and a power supply device. The frame body has an inner surface and an outer surface, wherein the frame body comprises: a surrounding cavity member and an adapter. The surrounding cavity member includes a surrounding pivoting portion located at a rear end of the surrounding cavity member. The adapter includes an adapter pivoting portion and an adapter screwing portion respectively located at a front end and a rear end of the adapter, wherein the adapter pivoting portion is pivotally connected to the surrounding cavity member a pivoting portion, the adapter screwing portion is for screwing with a lens screw of one of the lenses of the camera, the lens has a front optical lens, and the inner surface of the frame body includes an inner surface surrounding the cavity member and An inner surface of the adapter, the outer surface of the frame body includes an outer surface surrounding one of the cavity members and an outer surface of the adapter. The front filter clamping portion includes a left extension plate and a right extension plate respectively extending from the left and right sides of the front end of the surrounding cavity member, and one of the front surface of the left extension plate and one of the right extension plate respectively. a left fixing member and a right fixing member on the front surface, the left fixing member and the right fixing member are for holding a front filter, wherein a front cavity, a surface of the frame body and a front cavity form a cavity . The demisting device is disposed on the frame body between the inner surface of the frame body and the cavity. The power supply device is electrically connected to the demisting device. Therefore, when the power supply device provides the electric heating demisting device, the air in the cavity is directly heated, so that the temperature of the cavity is rapidly increased to quickly achieve the defogging function, including the front optical lens and the front filter. The mirror removes fog and can effectively reduce the heat dissipation rate.

In an embodiment, the foregoing demisting device is disposed on the inner surface of the frame body It has one of the grooves.

In one embodiment, the surrounding surrounding cavity member includes an engaging groove and a latching ring, and the surrounding cavity member has an engaging slot opening for inserting the snap ring into the engaging groove and being fixed in the engaging groove. .

In an embodiment, the foregoing demisting device is disposed on the snap ring or on the engaging groove.

In one embodiment, the aforementioned snap fit has a rear filter fixing portion for a rear filter to be fixed to the snap fit.

In one embodiment, the foregoing demisting device further includes a thermal sensor, and the power supply device further includes a temperature control portion for temperature control of the demisting device.

In one embodiment, the frame body further includes a heat insulating layer formed on an outer surface of at least a portion of the frame body.

In an embodiment, the adapter further includes an anti-reflection layer formed on the inner surface of the adapter.

In one embodiment, the adapter further includes an anti-reflective insulation layer, and the anti-reflective insulation layer is formed on the inner surface of the adapter.

In one embodiment, the surrounding surrounding cavity further includes a buffer layer formed on the outer surface of the front end of the surrounding cavity to fill the outer surface of the front end of the cavity and the front filter. One of the gaps.

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

10‧‧‧ Cavity

11‧‧‧ gap

2‧‧‧ Frame body

20‧‧‧The inner surface of the frame body

21‧‧‧ Exterior surface of the frame body

22‧‧‧ Groove

23‧‧‧Insulation

3‧‧‧around cavity parts

30‧‧‧ Around the inner surface of the cavity

31‧‧‧ Around the outer surface of the cavity

32‧‧‧ Surrounding pivot

320‧‧‧Fixed grooves

321‧‧‧fixed button

33,33’‧‧‧ engaging slots

330,330’‧‧‧ First Closure

34‧‧‧Cards

340‧‧‧ grip

341‧‧‧Second Bonding Department

342‧‧‧The Ministry of Movement

343‧‧‧Rotating mechanism

344‧‧‧Clock cover

35,35'‧‧‧ snap slot opening

36‧‧‧ Rear filter fixing

37‧‧‧Back filter

370‧‧‧Fixed Department

38‧‧‧ Buffer layer

4‧‧‧Adapters

40‧‧‧The inner surface of the adapter

41‧‧‧ Exterior surface of the adapter

42‧‧‧Adapter pivoting

43‧‧‧Adapter screw joint

44‧‧‧Anti-reflective layer

45‧‧‧Anti-reflective insulation

5‧‧‧ Front filter clamping section

50‧‧‧Left extension board

51‧‧‧Right extension board

52‧‧‧ front surface of the left extension plate

53‧‧‧Front extension plate front surface

54‧‧‧left fixture

55‧‧‧right fixture

56‧‧‧First front filter

57‧‧‧Second front filter

58‧‧‧ screws

6‧‧‧Defogging device

60‧‧‧ Thermal Sensor

7‧‧‧Power supply unit

70‧‧‧ Temperature Control Department

8‧‧‧ camera

80‧‧‧ lens

81‧‧‧ lens screw

82‧‧‧ front optical lens

90‧‧‧ camera

91‧‧‧ lens

92‧‧‧ front optical lens

93‧‧‧heating belt

94‧‧‧Power supply

95‧‧‧ frames

96‧‧‧First front filter

97‧‧‧Second front filter

98‧‧‧ Cavity

99‧‧‧ gap

991‧‧ Perspective

Fig. 1A is a specific embodiment of a filter holder having a demisting device.

Fig. 1B is a cross-sectional view showing the combination of the embodiment of Fig. 1A and the camera.

Fig. 1C is an enlarged partial cross-sectional view of X of Fig. 1A.

Figure 1D is another embodiment of Figure 1C.

Figure 1E is yet another embodiment of Figure 1C.

Figure 2A is another embodiment of a filter holder having a demisting device.

Fig. 2B is a specific embodiment of a snap-fit cover for creating a filter holder with a defogging device.

Fig. 3 is a specific embodiment of a snap fit of a filter holder having a defogging device.

Fig. 4 is another embodiment of a snap fit of a filter holder having a demisting device.

Figure 5 is a partial cross-sectional enlarged view of still another embodiment of a snap fit of a filter holder having a demisting device.

Fig. 6 is a specific embodiment of a surrounding cavity member and a front filter holding portion of a filter holder having a demisting device.

Figure 7 is a specific embodiment of an adapter for creating a filter holder with a demisting device.

Fig. 8 is a view showing another embodiment of a surrounding cavity member and a front filter holding portion of a filter holder having a defogging device.

Figure 9A is a combination of a specific embodiment with a camera and a camera. Sectional view.

Figure 9B is a front view of Figure 9A.

Figure 10 is a combination of a heating belt and a camera in the prior art.

Figure 11 is a cross-sectional view showing a combination of a heating belt and a camera and a frame according to the prior art.

Please refer to FIG. 1A, which is a specific embodiment of a filter holder with a demisting device. A filter frame 1 having a demisting device of the present invention includes a frame body 2, a front filter holding portion 5, a demisting device 6, and a power supply device 7. The frame body 2 has an inner surface 20 and an outer surface 21. The frame body 2 includes a surrounding cavity member 3 and an adapter member 4. The inner surface 20 of the frame body 2 includes an inner surface 30 that surrounds the cavity member 3 and an inner surface 40 of the adapter member 4. The outer surface 21 of the frame body 2 includes an outer surface 31 surrounding one of the cavity members 3 and an outer surface 41 of the adapter member 4. The surrounding cavity member 3 includes a circumferential pivot portion 32 that is located at the rear end of the surrounding cavity member 3. The adapter 4 includes an adapter pivoting portion 42 and an adapter screwing portion 43 respectively located at the front end and the rear end of the adapter 4. The surrounding pivoting portion 32 surrounding the cavity member 3 is pivotally connected to the adapter pivoting portion 42. In this embodiment, the surrounding pivoting portion 32 includes a fixing groove 320 and a pair of fixing buttons 321 for inserting the adapter pivoting portion 42 into the fixing groove 320 surrounding the pivoting portion 32. The adapter pivoting portion 42 is fixed to the fixing button 321 by one of the surrounding pivoting portions 32. The front filter holding portion 5 includes a left extension plate 50 and a right extension plate 51 extending from the left and right sides of the front end of the surrounding cavity member 3, and respectively located on one of the front surface 52 of the left extension plate 50. And a left fixing member 54 and a right fixing member 55 on the front surface 53 of one of the right extension plates 51. The left fixing member 54 and the right fixing member 55 are respectively fixed to the left extension plate 50 and the right extension plate 51 by a plurality of screws 58. Please also refer to FIG. 1B, which is a cross-sectional view of the embodiment of FIG. 1A combined with a camera. One camera 8 one lens 80 There is a lens screw 81 and a front optical lens 82. The adapter screwing portion 43 of the adapter 4 is screwed to the lens screwing portion 81 of the lens 80. The adapter 4 can be selected in accordance with the size of the lens screw 81 of the lens 80. The adapter screwing portion 43 of the adapter 4 of different sizes can be purchased with the lens screwing portion 81 of the lens 80 of different sizes. The left fixing member 54 and the right fixing member 55 are for holding a first front filter 56 and a second front filter 57. A cavity 10 is formed between the first front filter 56, the inner surface 20 of the frame body 2 (including the inner surface 30 surrounding the cavity member 3 and the inner surface 40 of the adapter 4) and the front optical lens 82. Please also refer to FIG. 1C, which is a partial cross-sectional enlarged view of X of FIG. 1A. In this embodiment, the demisting device 6 is disposed on the inner surface 30 of the surrounding cavity member 3. The power supply device 7 is electrically connected to the demisting device 6 to provide an electric heating demisting device 6. Since the demisting device 6 is disposed on the inner surface 30 of the surrounding cavity member 3, when the power supply device 7 supplies the electric heating demisting device 6, the air in the cavity 10 and the frame body 2 are directly heated. Therefore, the temperature of the cavity 10 is rapidly increased to quickly achieve the defogging function, and the front optical lens 82 and the first front filter 56 can be simultaneously defogized, and the heat dissipation rate can be effectively reduced. The second front filter 57 is defogged.

Please refer to FIG. 1D, which is another embodiment of FIG. 1C. In this embodiment, the inner surface 20 of the frame body 2 has a recess 22. The mist removing device 6 is disposed in the recess 22 of the inner surface 20 of the frame body 2. Please refer to FIG. 1E, which is another embodiment of FIG. 1C. In this embodiment, the demisting device 6 is disposed on the frame body 2 between the outer surface 21 of the frame body 2 and the inner surface 20 of the frame body 2. 1C, 1D, and 1E are preferred embodiments of the present invention, wherein the demisting device 6 is disposed on the frame body 2 between the outer surface 21 of the frame body 2 and the cavity 10. (including the inner surface 20 of the frame body 2, but excluding the outer surface 21 of the frame body 2). In another embodiment (not shown), the demisting device 6 can be disposed on the outer surface 21 of the frame body 2, but if the demisting device 6 is disposed on the outer surface 21 of the frame body 2, The heat dissipation is more serious, the power consumption is larger, and the defogging rate is lower than that of the embodiment of the 1Cth, 1st, and 1Eth.

Please refer to FIG. 2A, which is another embodiment of a filter holder having a demisting device. The main structure of the embodiment shown in Fig. 2A is substantially the same as that of the embodiment shown in Fig. 1A, except that the surrounding cavity member 3 includes an engaging groove 33 and a catching weir 34. The surrounding cavity member 3 has an engaging groove opening 35 into which the engaging jaw 34 is inserted and fixed in the engaging groove 33. A first adhesive portion 330 is disposed around the opening of the engaging groove 3 at the opening of the engaging groove 3. The latch 34 has a grip portion 340 and a second tab portion 341. The grip portion 340 facilitates a user to hold the latch 34. The first abutting portion 330 and the second abutting portion 341 are designed to be tightly fitted, so that the engaging cymbal 34 is inserted into the engaging groove 33 from the engaging groove opening 35 and is fixed in the engaging groove 33, and is engaged. The slot opening 35 is tightly closed to avoid the problem of light leaking into the lens 80, preventing the presence of a reflected image of the lens 80 in the photograph taken. In this embodiment, the demisting device 6 is disposed on the latching pocket 34 on the inner surface 20 of the frame body 2 (around the inner surface 30 of the cavity member 3). Please also refer to FIG. 2B, which is a specific embodiment of a snap cover for creating a filter frame with a defogging device. The engaging cover 344 has substantially the same structure as the upper half of the engaging weir 34 of FIG. 2A, but the defogging device 6 is not provided on the engaging cover 344. The function of the snap cover 344 is that when the defogging function is not required in the embodiment of FIG. 2A, the latching jaws 34 can be removed, and the latching cover 344 can be fixed on the engaging slot opening 35 to make the card The groove opening 35 is brought into close contact. In another embodiment (not shown), the demisting device 6 can be disposed on the engaging groove 33 on the inner surface 20 of the frame body 2 (around the inner surface 30 of the cavity member 3).

Please refer to FIG. 3, which is a specific embodiment of a snap fit of a filter holder having a demisting device. The main structure of the embodiment shown in Fig. 3 is shown in Fig. 2A. The structure of the engaging jaws 34 of the embodiment is substantially the same, except that the engaging jaws 34 further include a rear filter fixing portion 36. The rear filter fixing portion 36 is pivotally coupled to a fixing portion 370 of a rear filter 37 to fix the rear filter 37 to the engaging jaws 34. In another embodiment (not shown), the defogging device 6 is not disposed on the latch 34, and the defogging device 6 is disposed at other locations, such as the inner surface 20 of the frame body 2 at other locations. At this time, the snap-fit 34 system can be used simply as an input filter. When the filter function of the engaging jaw 34 is not used, the latching jaw 34 can be removed, and the latching cover 344 of FIG. 2B can be fixed on the engaging slot opening 35, so that the engaging slot opening 35 can be densely closed. Hehe.

Please refer to FIG. 4, which is another embodiment of a snap fit of a filter holder having a demisting device. The main structure of the embodiment shown in FIG. 4 is substantially the same as that of the embodiment shown in FIG. 3, except that the engaging jaw 34 further includes a dial portion 342 and a rotating mechanism 343. The rotation mechanism 343 rotates the rear filter fixing portion 36 with respect to the engagement catch 34, whereby the filter 37 is rotated relative to the engagement catch 34 after being fixed to the rear filter fixing portion 36. The user can rotate the rear filter 37 relative to the latching jaw 34 by dialing the toggle portion 342. After the embodiment, the filter 37 is adapted to use a circular polarizing filter. When the user rotates the filter 37 after the circular polarizing filter, the first front filter 56 and the second front that have been adjusted and fixed are not affected at all. Filter 57.

Please refer to FIG. 5, which is a partial cross-sectional enlarged view of another embodiment of a snap fit of a filter holder having a demisting device. The main structure of the embodiment shown in FIG. 5 is substantially the same as the structure of the engaging cassette 34 of the embodiment shown in FIG. 2A, except that the defogging device 6 further includes a thermal sensor 60, and the power supply device 7 further includes a temperature control unit 70. The temperature is sensed by the thermal sensor 60, and the temperature control unit 70 controls the temperature of the demisting device 6 to avoid excessive heating, causing damage to the lens. In all other embodiments of the present invention, the demisting device 6 can include a thermal sensor 60, and the power supply device 7 can include a temperature control portion 70.

Please refer to FIG. 6 , which is a specific embodiment of a surrounding cavity member and a front filter clamping portion of a filter frame having a demisting device. The main structure of the embodiment shown in FIG. 6 is substantially the same as the structure of the embodiment shown in FIG. 2A, except that the surrounding cavity member 3 further includes an engaging groove 33', and the surrounding cavity member 3 further has A latching opening 35' is formed, and a first contact portion 330' is further disposed around the cavity member 3 near the engaging slot opening 35'. The embodiment of Fig. 6 can provide two engaging jaws 34 (not shown) which are respectively fixed in the engaging groove 33 and the engaging groove 33'. The two snaps 34 series can have a combination of multiple possibilities. For example, one of the latching jaws 34 is provided with a rear filter 37 and a defogging device 6 at the same time, and only one rear filter 37 is disposed on the other latching jaw 34, and the demisting device 6 is not provided; or Only one demisting device 6 is disposed on one of the latching clamps 34, and only one rear filter 37 is disposed on the other latching jaw 34, and the demisting device 6 is not provided; or the defogging device 6 is disposed on the frame of other parts. The inner surface 20 of the body 2 has a rear filter 37 on each of the two latching jaws 34, but no demisting device 6 is provided. A snap fit 34 may also be provided (wherein a rear filter 37 or a defogging device 6 or a rear filter 37 and a defogging device 6 may be disposed on the latch 34) and a second B-picture. The card cover 344 (not shown); or two latching covers 344 (not shown) of FIG. 2B are fixed at the same time, and the defogging device 6 is disposed on the frame body 2 of other parts. On the inner surface 20.

Please refer to FIG. 7 , which is a specific embodiment of an adapter for creating a filter holder with a demisting device. The main structure of the embodiment shown in Fig. 7 is substantially the same as that of the adapter 4 of the embodiment shown in Fig. 1A, except that the defogging device 6 is disposed on the inner surface 40 of the adapter 4. . The power supply device 7 is electrically connected to the demisting device 6 provided on the inner surface 40 of the adapter 4.

Please refer to FIG. 8 , which is another embodiment of creating a surrounding cavity member and a front filter clamping portion of a filter holder having a demisting device. The main example of the embodiment shown in Figure 8 The structure is substantially the same as that of the embodiment shown in Fig. 2A except that the defogging device 6 is disposed on the inner surface 30 of the surrounding cavity member 3. At this time, the snap fit 34 can be used simply as an input filter. When the filter function of the engaging jaw 34 is not used, the latching jaw 34 can be removed, and the latching cover 344 of FIG. 2B can be fixed on the engaging slot opening 35, so that the engaging slot opening 35 can be densely closed. Hehe.

Please refer to Figures 1A and 1B. There is a gap 11 between the outer surface 31 of the front end surrounding the cavity member 3 and the first front filter 56. When the power supply device 7 supplies electric power to heat the demisting device 6, the air in the cavity 10 is directly heated. When the air is heated, it expands and flows out from the gap 11, and also dissipates heat. Please refer to FIG. 9A, which is a cross-sectional view showing a combination of a specific embodiment with a camera and a camera. Please also refer to FIG. 9B, which is a front view of FIG. 9A when the first front filter 56 and the second front filter 57 are not provided. The main structure of the embodiment shown in FIG. 9A is substantially the same as the structure of the embodiment shown in FIG. 2A, except that the surrounding cavity member 3 further includes a buffer layer 38, a heat insulating layer 23 and an anti-reflection. Layer 44. A buffer layer 38 is formed on the outer surface 31 of the front end of the surrounding cavity member 3 to fill the gap 11 between the outer surface 31 of the front end of the cavity member 3 and the first front filter 56. Thereby, the cavity 10 is more confined and closed, and the heat dissipation is further reduced, thereby saving the power of the power supply device 7 and at the same time increasing the rate of defogging. Further, in this embodiment, the heat insulating layer 23 is formed on the outer surface 31 surrounding the cavity member 3, thereby reducing heat dissipation and saving power of the power supply device 7. In another embodiment (not shown), the insulating layer 23 may also be formed on the outer surface 41 of the adapter 4. Moreover, in this embodiment, the anti-reflective layer 44 is formed on the inner surface 40 of the adapter 4, thereby reducing light reflection from the inner surface 40 of the adapter 4 to avoid affecting imaging quality. In another embodiment, an anti-reflective insulating layer 45 can be formed on the outer surface 41 of the adapter 4 to simultaneously reduce the light reflection of the inner surface 40 of the adapter 4 and reduce the heat dissipation. In yet another embodiment (not shown), a surface is formed on the outer surface 41 of the adapter 4 The heat insulating layer 23 is further formed with an anti-reflection layer 44 to simultaneously reduce the light reflection of the inner surface 40 of the adapter 4 and reduce the heat dissipation.

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, according to the content disclosed above, the creation can achieve the intended purpose of creation, providing a filter frame with a defogging device, which is very expensive for industrial use, and proposes to create a patent application according to law.

Claims (10)

A filter frame having a demisting device, comprising: a frame body having an inner surface and an outer surface, wherein the frame body comprises: a surrounding cavity member, comprising a surrounding pivoting portion, the surrounding a rear end of the cavity member; and an adapter member including an adapter pivoting portion and an adapter screwing portion respectively located at a front end and a rear end of the adapter, wherein the adapter pivot portion Providing for pivotal connection with the surrounding pivoting portion of the surrounding cavity member, the adapter screwing portion is for screwing with a lens screwing portion of one of the lenses of the camera, the lens having a front optical lens, the lens The inner surface of the frame body includes an inner surface of the surrounding cavity member and an inner surface of the adapter member, the outer surface of the frame body including an outer surface of the surrounding cavity member and the adapter An outer surface; a front filter clamping portion, comprising a left extension plate and a right extension plate respectively extending from the left and right sides of the front end of the surrounding cavity member, and one of the left extension plates respectively One of the front surface and one of the front surfaces of the right extension plate And a right fixing member, the left fixing member and the right fixing member are configured to clamp a front filter, wherein the front filter, the inner surface of the frame body and the front optical lens form a cavity; A demisting device is disposed on the frame body between the inner surface of the frame body and the cavity; and a power supply device is electrically connected to the demisting device. A filter holder having a demisting device according to claim 1, wherein the defogging device is disposed in a recess of the inner surface of the frame body. The filter frame with a demisting device according to claim 1, wherein the surrounding cavity member comprises an engaging groove and a snap ring, and the surrounding cavity member has an engaging groove opening for the The engaging cymbal is inserted into the engaging groove and fixed in the engaging groove. The filter frame with a demisting device according to the third aspect of the invention, wherein the defogging device is disposed on the engaging groove or the engaging groove. A filter holder having a demisting device according to claim 3, wherein the engaging jaw has a rear filter fixing portion for a rear filter to be fixed to the engaging pocket. The filter frame with a demisting device according to claim 1, wherein the defogging device further comprises a thermal sensor, the power supply device further comprising a temperature control portion for performing the demisting device Temperature control. The filter frame with a demisting device according to claim 1, wherein the frame body further comprises a heat insulating layer formed on at least a portion of the outer surface of the frame body . The filter frame with a demisting device according to claim 1, wherein the adapter further comprises an anti-reflection layer formed on the inner surface of the adapter. The filter frame with a demisting device according to claim 1, wherein the adapter further comprises an anti-reflective heat insulating layer formed on the inner surface of the adapter on. The filter frame with a demisting device according to claim 1, wherein the surrounding cavity member further comprises a buffer layer formed on the outer surface of the front end of the surrounding cavity member. To fill a gap between the outer surface of the front end of the surrounding cavity and the front filter.