TWI755595B - The protruding structure of the lens barrel - Google Patents

Abstract

A protruding structure of a lens barrel body, comprising: a lens barrel body, which is made of metal material, and has an inner side of the barrel body; and at least one protruding structure, which is an elastic body made of polymer material, and is provided with On the inner side of the barrel body; thus, the inner side of the barrel body can narrow the gap with the predetermined assembly through the protruding structure or produce a slight interference to the predetermined assembly, and the predetermined assembly can be a lens, in addition to solving the lens offset, and further has a lens The effect of improving the image quality and improving the stability of lens assembly, and using spraying or dispensing methods to coat polymer materials, UV or heat curing to form a protruding structure, and then have the ability to precisely control the thickness and range of the protruding structure. effect.

Description

The protruding structure of the lens barrel

The present invention relates to a protruding structure of a lens barrel, in particular to a protruding structure that can narrow the gap with a predetermined assembly or generate a small amount of interference to the predetermined assembly.

Press, in many application fields, the lens must have high reliability, such as projector lens, vehicle lens, aerial camera lens and other products, must be resistant to vibration, high and low temperature conditions, can not be damaged in harsh environments and maintain normal imaging quality . In order to meet these goals, such lenses are usually composed of glass lenses and metal barrels, which can have excellent material stability compared to plastic materials. However, when designing the lens with this structure, the inner diameter of the barrel must be larger than the outer diameter of the matching lens, and there must be a gap to smoothly insert the lens group into the barrel. In addition, due to the machining tolerance, the matching gap must be set larger to avoid dimensional interference and the lens cannot be assembled into the barrel. However, although the assembly can be successfully completed, the gap is less restricted, and the lens is easy to shift during assembly, which makes the image quality of the lens worse, which is the problem to be solved by the present invention.

The main purpose of the present invention is to provide a protruding structure of the lens barrel, the protruding structure can reduce the gap with the lens or generate a slight interference to the lens, so as to solve the problem of lens shift in the prior art, Furthermore, the effect of improving the imaging quality of the lens and improving the stability of the lens assembly is enhanced.

Another object of the present invention is to provide a protruding structure of a lens barrel, which is coated with polymer material by spraying or dispensing, and then cured by UV or heating to form a protruding structure, and further has the ability to precisely control the protruding structure. The thickness and extent of the structure are increased in efficacy.

In order to achieve the above-mentioned purpose, the technical means adopted in the present invention include: a lens barrel, which is made of metal material, and has an inner side of the barrel; and at least one protruding structure, which is made of elastic polymer material. The body is arranged on the inner side of the barrel body; thereby, the inner side of the barrel body passes through the surface of the protruding structure to a predetermined place to form a very small gap or the thickness of the protruding structure produces a slight interference to the predetermined place.

According to the aforementioned features, the protruding structure has a thickness of 1 μm to 2 mm.

According to the aforementioned feature, the thickness of the protruding structure is formed by one of 5 μm˜15 μm or 170 μm˜450 μm.

According to the front disclosure feature, the inner side of the barrel further includes a first position, and the protruding structure is divided into a first protrusion, and the first protrusion is annularly arranged on the first position.

According to the front disclosure feature, the inner side of the barrel further includes a second position, the second position is located below the first position, and the protruding structure is divided into a second protruding body, and the second protruding body is divided into The annular arrangement is at the second position.

According to the front disclosure feature, the inner side of the barrel further includes a third position, the third position is located below the second position, and the protruding structure is divided into a third protruding body, and the third protruding body is divided into a third position. The annular arrangement is at the third position.

Another technical means adopted by the present invention includes: a lens barrel, which is made of metal material, and has an inner side of the barrel; and at least one protruding structure, which can be sprayed with a sprayer with a predetermined nozzle aperture. polymer material, so that the polymer material can be attached to the inner side of the barrel, and a feeding pressure parameter and a feeding time parameter are controlled to adjust the thickness of the polymer material, and the polymer material is repeatedly sprayed to the barrel body At different positions on the inner side, the polymer material is cured with a heat source or a light source to form; thereby, the inner side of the barrel is formed through the surface of the protruding structure to a predetermined place to form a very small gap or the thickness of the protruding structure. A small amount of interference to the predetermined place.

According to the aforementioned features, the viscosity of the polymer material is 800cps, the diameter of the nozzle is 0.25mm, the feeding pressure parameter is 5~17psi, and the feeding time parameter is 0.2 seconds, and the thickness of the protruding structure is 5μm~ 15μm.

Another technical means adopted by the present invention includes: a lens barrel body, which is made of metal material, and has an inner side of the barrel body; Coat a polymer material so that the polymer material can be coated on the inside of the barrel, and control a feeding pressure parameter and a feeding time parameter to adjust the thickness of the polymer material, and repeat the dispensing of the polymer material until At different positions on the inner side of the barrel, the polymer material is cured by a heat source or a light source; thereby, the inner side of the barrel is formed through the surface of the protruding structure to a predetermined place to form a very small gap or the protruding structure The thickness produces a small amount of interference to the predetermined place.

According to the aforementioned features, the viscosity of the polymer material is 7000cps, the diameter of the dispensing head is 0.34mm, the feeding pressure parameter is 20 pis to 50 psi and the feeding time parameter is 1 second, and the degree after forming the protruding structure is 170μm~450μm.

With the help of the above-mentioned technical means, in order to overcome the above problems, it is proposed to make the protruding structures at the lens installation place inside the barrel body, and evenly disperse them at the lens installation place, and the production method of the protruding structure can be sprayed or sprayed. The curable material is coated by dispensing and other methods, and the protruding structure is formed after curing by UV or heating, and through the adjustment of the coating process, the thickness and range of the protruding structure can be precisely controlled, and the inner diameter of the lens installation can be reduced at the same time. , therefore, when the lens is assembled, there will be slight interference with the protruding structure, and after the lens is assembled, it can also ensure that the lens is placed on the axis of a barrel or the extremely small gap is formed between the protruding structure and the lens , which can not only eliminate the gap between the lens barrel and the lens, but also make the lens more stable during assembly, so that the image quality of the lens is stable, and the lens can still maintain good quality after being subjected to heat, cold and vibration. Good image quality.

10: Lens barrel

11: Inside the barrel

111: First position

112: Second position

113: Third position

20: Protruding structure

21: The first convex body

22: Second convex body

23: Third convex body

30A: Sprayer

30B: Dispenser

31: Polymer Materials

32: Feeding pressure parameters

33: Feeding time parameters

40: Lens

C: barrel axis

D ₁ : Inner diameter of barrel

D ₂ : lens outer diameter

G: Very small gap

T: Thickness

B: Where the lens is installed

d ₁ : Nozzle hole diameter

d ₂ : Dispensing head aperture

FIG. 1A is a schematic diagram of a first embodiment of the present invention.

FIG. 1B is a cross-sectional view of 1B-1B in FIG. 1A .

FIG. 2A is a schematic diagram of the present invention using a sprayer to make a protruding structure.

FIG. 2B is a schematic diagram of the present invention using a glue dispenser to make a protruding structure.

FIG. 3A is a schematic diagram of a second embodiment of the present invention.

FIG. 3B is a cross-sectional view of 3B-3B in FIG. 3A .

FIG. 4A is a schematic diagram of a third embodiment of the present invention.

FIG. 4B is a cross-sectional view of 4B-4B in FIG. 4A .

FIG. 5A is a schematic diagram of a fourth embodiment of the present invention.

FIG. 5B is a cross-sectional view at 5B-5B of FIG. 5A .

FIG. 6A is a schematic diagram of a fifth embodiment of the present invention.

FIG. 6B is a cross-sectional view of 6B-6B in FIG. 6A .

FIG. 7 is a view showing the use state of the protruding structure without micro-interference lens of the present invention.

FIG. 8 is a state diagram of a micro-interference lens with a protruding structure of the present invention.

FIG. 9 is a cross-sectional view of the section 9-9 in FIG. 8 .

FIG. 10 is a diagram showing the use state of the present invention when a very small gap is formed between the protruding structure and the lens, or there is a slight interference to the lens.

First, please refer to FIGS. 1A-1B and 10 , a first embodiment of a protruding structure of a lens barrel of the present invention includes: a lens barrel 10 , which is made of metal material, and has a barrel inner side 11 therein. ; And at least one protruding structure 20 is made of elastic polymer material 31 The inner side 11 of the barrel body forms a very small gap (G) or the protruding structure 20 on the side of the protruding structure 20 through the thickness (T) of the protruding structure 20. The thickness (T) of the exit structure 20 causes slight interference, but not limited thereto.

As shown in FIG. 2A , a sprayer 30A with a predetermined nozzle aperture (d ₁ ) can spray a polymer material 31 , so that the polymer material 31 can be attached to the inner side 11 of the barrel, and a feeding pressure parameter is controlled 32 and a feeding time parameter 33 to adjust the thickness of the polymer material 31, and then repeatedly spray the polymer material 31 to different positions on the inside of the barrel 11, and then use a heat source or a light source to cure the polymer material 31. Formation, in this embodiment, the viscosity of the polymer material 31 is 800cps, the nozzle aperture (d ₁ ) is 0.25mm, the feeding pressure parameter 32 is 5-17 psi, and the feeding time parameter 33 is 0.2 seconds, The thickness (T) for forming the protruding structure 20 is 5 μm˜15 μm, but not limited thereto.

As shown in FIG. 2B , a dispenser 30B with a predetermined dispensing head aperture (d ₂ ) can coat a polymer material 31 , so that the polymer material 31 can be coated on the inner side 11 of the barrel body, and control a supply of a polymer material 31 . A material pressure parameter 32 and a feeding time parameter 33 are used to adjust the thickness of the polymer material 31, and the polymer material 31 is repeatedly dispensed to different positions on the inner side of the barrel 11, and then the polymer material 31 is heated by a heat source or The light source is cured and formed. In this embodiment, the viscosity of the polymer material 31 is 7000cps, the diameter of the dispensing head (d ₂ ) is 0.34mm, the feeding pressure parameters 32 are 20psi~50psi, and the feeding time The parameter 33 is 1 second, and the thickness (T) of the protruding structure 20 is 170 μm˜450 μm, but not limited thereto.

On top of that, by the sprayer 30A or the glue dispenser 30B, the polymer material 31 can be sprayed or coated on different positions on the inner side 11 of the barrel, and the curing method can be UV or heating the polymer material 31. After curing into the protruding structure 20, the thickness (T) of the protruding structure 20 can also be precisely controlled to be 1 μm˜2 mm. In this embodiment, the polymer material is curable glue materials, but not limited to this.

3A, 3B, 4A and 4B, the inner side 11 of the barrel further includes a first position 111, and the protruding structure 20 is divided into a first protruding body 21, and the first protruding body 21 is annular Arranged on the first position 111, and the first protrusions 21 are at least three or more, or as shown in FIGS. 5A-5B, the inner side 11 of the barrel may further include a second position 112, and the second position 112 is Located below the first position 111, the protruding structure 20 is divided into a second protruding body 22, and the second protruding body 22 is annularly arranged on the second position 112, and the second protruding body 22 22 at least three or more, or as shown in FIGS. 6A-6B, the inner side 11 of the barrel body may further include a third position 113, the third position 113 is located below the second position 112, and the protruding structure The 20-segment area is divided into a third convex body 23, and the third convex body 23 is annularly arranged on the third position 113, and the third convex body 23 is at least three, but not limited thereto.

Based on such a configuration, the protruding structure 20 of the present invention can narrow the gap with the predetermined assembly or cause a slight interference to the predetermined assembly, and the predetermined assembly can be a lens 40, as shown in FIG. 7, in the barrel At the lens mounting position (B) on the inner side of the body 11, each of the protruding structures 20 is made and evenly distributed at the lens mounting position (B); as shown in Figs. The structure 20 produces a small amount of interference, and after the lens 40 is assembled, it can be ensured that the lens 40 is placed on a barrel axis (C), and the thickness (T) and area of the protruding structure 20 can match the lens 40. Thickness, weight and size, while reducing the inner diameter (D ₁ ) of the lens mount (B), therefore, the protruding structure 20 slightly interferes with the lens 40 to the barrel axis (C) or the protruding structure The extremely small gap (G) formed between the lens 20 and the lens 40 can not only eliminate the gap between the lens barrel 10 and the lens 40, but also be more stable when the lens 40 is assembled, so that the image quality of the lens is stable, and also This allows the lens to maintain good image quality even after being subjected to heat, cold and vibration.

In addition, in this embodiment, the inner diameter (D ₁ ) of the inner side 11 of the barrel body where the lens 40 is to be assembled is 10.58mm, and the outer diameter (D ₂ ) of the lens 40 is 10.56mm, so the difference between the two is 10.58mm. The gap is 0.02mm, that is, the gap is 10μm on one side, and the polymer material 31 is attached to the inner side 11 of the barrel by spraying or dispensing. There are three places in total. After heating and UV light curing, the thickness (T) of the protruding structure 20 is 0.005mm~0.015mm, which is 5μm~15μm. As a result, when the feeding pressure parameter 32 is 17psi, Then the thickness (T) of the protruding structure 20 is 15 μm, or when the supply pressure parameter 32 is 8.5 psi, the thickness (T) of the protruding structure 20 is 10 μm, and when the lens 40 is assembled, then the protruding structure 20 has a thickness (T) of 10 μm. There is a slight interference with the lens 40 at the exit structure 20, so that the extremely small gap (G) after assembly is zero, and the lens 40 can be maintained at the axis (C) of the barrel; when the feeding pressure parameter 32 is 5psi , the thickness (T) of the protruding structure 20 is 5 μm, and after the lens 40 is assembled, the minimum gap (G) between the protruding structure 20 and the lens 40 is 5 μm, and the lens 40 can be connected to the lens 40 . The deviation of the barrel axis (C) is reduced from the original 10 μm to within 5 μm.

To sum up, the technical means disclosed in the present invention do meet the requirements for invention patents such as "novelty", "progressiveness" and "industrial utilization". Moral sense.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention, and modifications or equivalent changes made by those skilled in the art according to the spirit of the present case should still be included in the scope of the patent application of the present case.

10: Lens barrel

11: Inside the barrel

20: Protruding structure

Claims (7)

A protruding structure of a lens barrel body, comprising: a lens barrel body, which is made of metal material, and has an inner side of the barrel body; and at least one protruding structure, which is an elastic body made of polymer material, and is provided with On the inner side of the barrel, the inner side of the barrel further includes a first position, and the protruding structure is divided into a first protrusion, and the first protrusion is annularly arranged on the first position, inside the barrel It further includes a second position, the second position is located below the first position, and the protruding structure is divided into a second protrusion, and the second protrusion is annularly arranged on the second position, The inner side of the barrel further includes a third position, the third position is located below the second position, and the protruding structure is divided into a third protruding body, and the third protruding system is annularly arranged on the first three positions; thereby, the inner side of the barrel is through the surface of the protruding structure to a predetermined place to form a very small gap or the thickness of the protruding structure produces a slight interference to the predetermined place. The protruding structure of the lens barrel according to claim 1, wherein the thickness of the protruding structure is 1 μm˜2 mm. The protruding structure of the lens barrel according to claim 1, wherein the thickness of the protruding structure is one of 5 μm˜15 μm or 170 μm˜450 μm. A protruding structure of a lens barrel body, comprising: a lens barrel body, which is made of metal material, and has an inner side of the barrel body; and at least one protruding structure, which can be sprayed by a sprayer with a predetermined nozzle aperture Molecular material, so that the polymer material can be attached to the inside of the barrel, and a feeding pressure parameter and a feeding time parameter are controlled to adjust the thickness of the polymer material, and the polymer material is repeatedly sprayed to the inside of the barrel At different positions, the polymer material is cured by UV or heating to form an elastic body; thereby, the inner side of the barrel passes through the surface of the protruding structure to a predetermined place to form a very small gap or a gap between the protruding structure. The thickness produces slight interference to a predetermined point. The protruding structure of the lens barrel according to claim 4, wherein the viscosity of the polymer material is 800cps, the nozzle aperture is 0.25mm, the feeding pressure parameter is 5-17 psi, and the feeding time parameter is 0.2 Second, the thickness of the protruding structure is 5 μm~15 μm. A protruding structure of a lens barrel body, comprising: a lens barrel body, which is made of metal material and has an inner side of the barrel body; and at least one protruding structure, which can be obtained by using a dispenser with a predetermined dispensing head aperture. Coat a polymer material so that the polymer material can be coated on the inside of the barrel, and control a feeding pressure parameter and a feeding time parameter to adjust the thickness of the polymer material, and repeat the dispensing of the polymer material until At different positions on the inner side of the barrel, the polymer material is cured by UV or heating to form an elastomer; thereby, the inner side of the barrel passes through the surface of the protruding structure to form a very small gap or the The thickness of the protruding structure produces a small amount of interference to a predetermined position. The protruding structure of the lens barrel according to claim 6, wherein the viscosity of the polymer material is 7000cps, the diameter of the dispensing head is 0.34mm, the parameters of the feeding pressure are 20psi~50psi, and the parameters of the feeding time is 1 second, and the thickness of the protruding structure is 170 μm˜450 μm.

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