CN111913266A - Projecting structure of lens barrel body - Google Patents
Projecting structure of lens barrel body Download PDFInfo
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- CN111913266A CN111913266A CN201910385573.3A CN201910385573A CN111913266A CN 111913266 A CN111913266 A CN 111913266A CN 201910385573 A CN201910385573 A CN 201910385573A CN 111913266 A CN111913266 A CN 111913266A
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- polymer material
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- barrel
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/028—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a projecting structure of a lens barrel body, comprising: a lens barrel body made of metal and having a barrel body inner side therein; and at least one protruding structure which is an elastic body made of high polymer material and is arranged at the inner side of the barrel body; therefore, the inner side of the barrel body can reduce the clearance between the inner side of the barrel body and a preset assembly object or generate micro interference to the preset assembly object, the preset assembly object can be a lens, the lens deviation is solved, the lens imaging quality is improved, the lens assembly stability is improved, a high polymer material is coated by adopting a spraying or dispensing method and the like, a convex structure is formed after UV or heating curing, and the thickness and the range of the convex structure can be precisely controlled.
Description
Technical Field
The present invention relates to a protruding structure of a lens barrel, and more particularly to a protruding structure capable of reducing a gap between the lens barrel and a predetermined assembly or generating a small amount of interference with the predetermined assembly.
Background
In many applications, the lens must have high reliability, such as a projector lens, a vehicle-mounted lens, and a blank camera lens, and must be able to withstand vibration and high and low temperature conditions, and not be damaged in a severe environment and maintain normal imaging quality. To meet these objectives, such a lens generally includes a glass lens and a metal barrel, and has excellent material stability compared to a plastic material. However, when the lens with the frame structure is designed, the inner diameter of the barrel must be larger than the outer diameter of the lens, and a gap is required to smoothly assemble the lens into the barrel. And because of the tolerance relation of mechanical processing, the clearance between the matching parts must be set to be larger, so that the lens cannot be assembled into the barrel body due to size interference is avoided. However, although the assembly can be completed smoothly, the gap is limited less, and the lens is easy to shift when assembled, so that the quality of the lens image is deteriorated.
Disclosure of Invention
Accordingly, the present invention is directed to a protrusion structure of a lens barrel, which can reduce a gap between the lens barrel and a lens or generate a small amount of interference to the lens, so as to solve the problem of lens shift in the prior art, thereby improving the imaging quality of the lens and improving the assembling stability of the lens.
Another objective of the present invention is to provide a protruding structure of a lens barrel, which is formed by coating a polymer material by spraying or dispensing, and curing the polymer material by UV or heating, thereby precisely controlling the thickness and range of the protruding structure.
In order to achieve the above object, the technical means adopted by the present invention comprises: a lens barrel body made of metal and having a barrel body inner side therein; and at least one protruding structure which is an elastic body made of high polymer material and is arranged at the inner side of the barrel body; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
According to the characteristics disclosed in the previous paragraph, the thickness of the protruding structure is 1 μm to 2 mm.
According to the aforementioned features, the protruding structure has a thickness of 5 μm to 15 μm or 170 μm to 450 μm.
According to the aforementioned 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 at the first position.
According to the aforementioned 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 protrusion, and the second protrusion is annularly arranged on the second position.
According to the above 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 protrusion, and the third protrusion is annularly arranged on the third position.
Another technical means adopted by the present invention includes: a lens barrel body made of metal and having a barrel body inner side therein; and at least one protruding structure, which is formed by spraying a polymer material with a sprayer with a predetermined nozzle aperture, so that the polymer material can be attached to the inner side of the barrel body, controlling a feeding pressure parameter and a feeding time parameter to adjust the thickness of the polymer material, repeatedly spraying the polymer material to different positions of the inner side of the barrel body, and curing the polymer material with a heat source or a light source; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
According to the characteristics disclosed in the previous paragraph, 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 s, and the thickness of the protruding structure is 5-15 μm.
Another technical means adopted by the present invention includes: a lens barrel body made of metal and having a barrel body inner side therein; at least one protruding structure, which is formed by coating a polymer material on the inner side of the barrel body by using a glue dispenser with a preset glue dispensing head aperture, controlling a feeding pressure parameter and a feeding time parameter to adjust the thickness of the polymer material, repeatedly dispensing the polymer material to different positions on the inner side of the barrel body, and curing the polymer material by using a heat source or a light source; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
According to the characteristics disclosed in the previous patent, the viscosity of the polymer material is 7000cps, the aperture of the dispensing head is 0.34mm, the feeding pressure parameter is 20 pis-50 psi and the feeding time parameter is 1 second, and the degree of the backward forming of the protruding structure is 170-450 μm.
By means of the technical measures disclosed above, in order to overcome the above problems, it is proposed to manufacture each of the protruding structures at the lens mounting position on the inner side of the barrel body, and uniformly disperse the protruding structures at the lens mounting position, and the manufacturing method of the protruding structures can be to coat a curable material by spraying or dispensing, and form the protruding structures after UV or heat curing, and through adjustment of the coating process, the thickness and range of the protruding structures can be precisely controlled, and the inner diameter of the lens mounting position is reduced, so that when the lens is assembled, the lens generates a micro interference with the protruding structures, and after the lens is assembled, the lens can be ensured to be placed at the axis of the barrel body or form the micro gap between the protruding structures and the lens, thereby not only eliminating the gap between the barrel body and the lens, but also being more stable during the lens assembly, and enabling the imaging quality of the lens, and also enabling the lens to bear stable cold and hot temperatures, After shaking, good imaging quality can still be maintained.
Drawings
Fig. 1A is a schematic diagram of a first embodiment of the present invention.
FIG. 1B is a cross-sectional view of section 1B-1B of FIG. 1A.
FIG. 2A is a schematic view of the present invention showing a projection structure formed by a spray applicator.
FIG. 2B is a schematic diagram of a dispenser for forming a protrusion structure according to the present invention.
Fig. 3A is a schematic diagram of a second embodiment of the present invention.
FIG. 3B is a cross-sectional view of section 3B-3B of FIG. 3A.
Fig. 4A is a schematic diagram of a third embodiment of the present invention.
FIG. 4B is a cross-sectional view of section 4B-4B of FIG. 4A.
Fig. 5A is a schematic diagram of a fourth embodiment of the present invention.
FIG. 5B is a cross-sectional view of section 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 section 6B-6B of FIG. 6A.
FIG. 7 is a diagram of the state of the protruding structure of the non-micro interference lens of the present invention.
FIG. 8 is a diagram illustrating the use of a raised-structure micro interference lens according to the present invention.
Fig. 9 is a cross-sectional view of fig. 8 taken along line 9-9.
FIG. 10 is a diagram illustrating the use of the protrusion structure of the present invention in a state of forming a very small gap between the protrusion structure and the lens or generating a small amount of interference to the lens.
Description of reference numerals: 10 lens barrel body; 11, the inner side of the barrel body; 111 a first position; 112 a second position; 113 a third position; 20 a protruding structure; 21 a first convex body; 22 a second convex body; 23 a third convexity; a 30A sprayer; 30B glue dispenser; 31 a polymer material; 32 feed pressure parameter; 33 feed time parameters; 40 lenses; c, barrel axis; d1 barrel inside diameter; d2 lens outer diameter; g a small gap; t thickness; b, mounting a lens; d1 nozzle bore diameter; d2 dispensing head aperture.
Detailed Description
First, referring to fig. 1A to 1B and 10, a first embodiment of a lens barrel protruding structure according to the present invention includes: a lens barrel 10 made of metal and having a barrel inner side 11 therein; and at least one protrusion structure 20, which is an elastic body made of high polymer material 31 and is disposed on the inner side 11 of the barrel body; thus, the inner side 11 of the barrel forms a very small gap (G) at the side of the protrusion structure 20 by the thickness (T) of the protrusion structure 20 or the thickness (T) of the protrusion structure 20 generates a slight interference, but not limited thereto.
As shown in fig. 2A, a sprayer 30A with a predetermined nozzle aperture (d1) is used to spray a polymer material 31, so that the polymer material 31 can be attached to the inner side 11 of the barrel, a feeding pressure parameter 32 and a feeding time parameter 33 are controlled to adjust the thickness of the polymer material 31, the polymer material 31 is repeatedly sprayed to different positions of the inner side 11 of the barrel, and then the polymer material 31 is cured by a heat source or a light source, in this embodiment, the viscosity of the polymer material 31 is 800cps, the nozzle aperture (d1) is 0.25mm, the feeding pressure parameter 32 is 5-17 psi, and the feeding time parameter 33 is 0.2 seconds, and the thickness (T) of 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 (d2) is used to coat a polymer material 31, so that the polymer material 31 can be coated on the inner side 11 of the barrel, a feeding pressure parameter 32 and a feeding time parameter 33 are controlled to adjust the thickness of the polymer material 31, the polymer material 31 is repeatedly dispensed to different positions of the inner side 11 of the barrel, and the polymer material 31 is cured by a heat source or a light source, in this embodiment, the viscosity of the polymer material 31 is 7000cps, the dispensing head aperture (d2) is 0.34mm, the feeding pressure parameter 32 is 20 psi-50 psi, and the feeding time parameter 33 is 1 second, and the thickness (T) of the protruding structure 20 is 170 μm-450 μm, but not limited thereto.
In summary, the sprayer 30A or the dispenser 30B is used to enable the polymer material 31 to be sprayed or coated on different positions of the inner side 11 of the barrel, and the curing method may be UV or heating the polymer material 31 to cure the polymer material 31 into the protruding structure 20, and the thickness (T) of the protruding structure 20 may also be precisely controlled to be 1 μm to 2 mm.
As shown in fig. 3A, 3B, 4A and 4B, the barrel inside 11 further includes a first location 111, and the projection structure 20 is divided into a first projection 21, and the first projection 21 is annularly arranged on the first location 111, and the first projection 21 is at least three or more, as shown in fig. 5A-5B, the barrel inside 11 further includes a second location 112, the second location 112 is located below the first location 111, and the projection structure 20 is divided into a second projection 22, and the second projection 22 is annularly arranged on the second location 112, and the second projection 22 is at least three or more, or as shown in fig. 6A-6B, the barrel inside 11 further includes a third location 113, the third location 113 is located below the second location 112, and the projection structure 20 is divided into a third projection 23, and the third projection 113 is arranged on the third location 113, the third protrusions 23 are at least three or more, but not limited thereto.
Based on such a structure, the protruding structures 20 of the present invention can reduce the gap between the lens and the predetermined assembly or generate a small amount of interference to the predetermined assembly, and the predetermined assembly can be a lens 40, as shown in fig. 7, each protruding structure 20 is fabricated at the lens mounting position (B) on the inner side 11 of the barrel body and uniformly dispersed at the lens mounting position (B); as shown in fig. 8, 9 and 10, when the lens 40 is assembled, a small amount of interference is generated with the protruding structure 20, and after the lens 40 is assembled, the lens 40 can be ensured to be placed on a barrel axis (C), and the thickness (T) and the area of the protruding structure 20 can be matched with the thickness, weight and size of the lens 40, and the inner diameter (D1) of the lens mounting part (B) is reduced, so that the protruding structure 20 slightly interferes the lens 40 to the barrel axis (C) or the protruding structure 20 and the lens 40 to form the small gap (G), which not only can eliminate the gap problem between the lens barrel 10 and the lens 40, but also can be more stable when the lens 40 is assembled, so that the imaging quality of the lens is stable, and the lens can maintain good imaging quality after being subjected to cold, heat and vibration.
In this embodiment, the inner diameter (D1) of the predetermined position of the barrel inner side 11 where the lens 40 is assembled is 10.58mm, and the outer diameter (D2) of the lens 40 is 10.56mm, so that the gap between the two is 0.02mm, i.e. one side is a gap of 10 μm, and the polymer material 31 is attached to the predetermined position of the barrel inner side 11 by spraying or dispensing, and is separated by 120 degrees along the barrel axis (C), and after heating and UV light curing, the thickness (T) of the protrusion structure 20 is 0.005mm to 0.015mm, i.e. 5 μm to 15 μm, so that when the supply pressure parameter 32 is 17psi, the thickness (T) of the protrusion structure 20 is 15 μm, or when the supply pressure parameter 32 is 8.5psi, the thickness (T) of the protrusion structure 20 is 10 μm, and when the lens 40 is assembled, the lens 40 and the lens 40 generate micro interference, the minimum clearance (G) after assembly is zero, so that the lens 40 can be maintained at the axis (C) of the barrel body; when the supply 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, so that the deviation between the lens 40 and the barrel axis (C) can be reduced from the original 10 μm to within 5 μm.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A projecting structure of a lens barrel, comprising:
a lens barrel body made of metal and having a barrel body inner side therein; and
at least one protruding structure which is an elastic body made of high polymer material and is arranged at the inner side of the barrel body; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
2. The lens barrel projection structure according to claim 1, wherein the projection structure has a thickness of 1 μm to 2 mm.
3. The lens barrel projection structure of claim 1, wherein the projection structure has a thickness of one of 5 μm to 15 μm or 170 μm to 450 μm.
4. A lens barrel projection structure as claimed in claim 1, wherein the inside of the barrel further includes a first position, and the projection structure is divided into a first convex body and the first convex body is annularly arranged at the first position.
5. The lens barrel projection structure as claimed in claim 4, wherein the inside of the barrel further includes a second position located below the first position, and the projection structure is divided into a second convex body and arranged annularly at the second position.
6. The lens barrel projection structure as claimed in claim 5, wherein the inside of the barrel further includes a third position located below the second position, and the projection structure is divided into a third convex body and arranged annularly at the third position.
7. A projecting structure of a lens barrel, comprising:
a lens barrel body made of metal and having a barrel body inner side therein; and
at least one protruding structure, which can spray a high polymer material by a sprayer with a preset nozzle aperture, so that the high polymer material can be attached to the inner side of the barrel body, the thickness of the high polymer material is adjusted by controlling a feeding pressure parameter and a feeding time parameter, the high polymer material is repeatedly sprayed to different positions of the inner side of the barrel body, and then the high polymer material is cured by UV or heating to form an elastomer; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
8. The lens barrel projection structure as claimed in claim 7, wherein the polymer material has a viscosity of 800cps, a nozzle aperture of 0.25mm, a supply pressure parameter of 5-17 psi and a supply time parameter of 0.2 sec, and the projection structure is formed to have a thickness of 5-15 μm.
9. A projecting structure of a lens barrel, comprising:
a lens barrel body made of metal and having a barrel body inner side therein; and
at least one protruding structure, which can coat a high polymer material by a glue dispenser with a preset glue dispensing head aperture, so that the high polymer material can be coated on the inner side of the barrel body, and the thickness of the high polymer material is adjusted by controlling a feeding pressure parameter and a feeding time parameter, the high polymer material is repeatedly dispensed to different positions on the inner side of the barrel body, and then the high polymer material is cured by UV or heating to form an elastomer; therefore, a tiny gap is formed on the inner side of the barrel body to a preset position through the surface of the protruding structure or the thickness of the protruding structure generates micro interference to the preset position.
10. The lens barrel protrusion structure of claim 9, wherein the polymer material has a viscosity of 7000cps, the dispensing head aperture of 0.34mm, the feeding pressure parameter of 20 psi-50 psi and the feeding time parameter of 1 second, and the protrusion structure is formed to a thickness of 170 μm-450 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385573.3A CN111913266A (en) | 2019-05-09 | 2019-05-09 | Projecting structure of lens barrel body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385573.3A CN111913266A (en) | 2019-05-09 | 2019-05-09 | Projecting structure of lens barrel body |
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| CN111913266A true CN111913266A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910385573.3A Pending CN111913266A (en) | 2019-05-09 | 2019-05-09 | Projecting structure of lens barrel body |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337562A (en) * | 2005-05-31 | 2006-12-14 | Fujinon Corp | Lens holder and lens centering apparatus and method |
| JP2007101878A (en) * | 2005-10-04 | 2007-04-19 | Sharp Corp | Lens structure body |
| CN102016678A (en) * | 2009-04-06 | 2011-04-13 | 松下电器产业株式会社 | Lens unit |
| JP2017003736A (en) * | 2015-06-09 | 2017-01-05 | オリンパス株式会社 | Lens fixing structure and fixing method |
| JP2018084672A (en) * | 2016-11-24 | 2018-05-31 | キヤノン株式会社 | Holding device, presser ring, measurement device, system, and manufacturing method of article |
| TW201830078A (en) * | 2017-02-13 | 2018-08-16 | 均英精密工業股份有限公司 | Method for manufacturing optical lens having air gap providing optical lenses and optical camera lenses with better imaging quality |
-
2019
- 2019-05-09 CN CN201910385573.3A patent/CN111913266A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006337562A (en) * | 2005-05-31 | 2006-12-14 | Fujinon Corp | Lens holder and lens centering apparatus and method |
| JP2007101878A (en) * | 2005-10-04 | 2007-04-19 | Sharp Corp | Lens structure body |
| CN102016678A (en) * | 2009-04-06 | 2011-04-13 | 松下电器产业株式会社 | Lens unit |
| JP2017003736A (en) * | 2015-06-09 | 2017-01-05 | オリンパス株式会社 | Lens fixing structure and fixing method |
| JP2018084672A (en) * | 2016-11-24 | 2018-05-31 | キヤノン株式会社 | Holding device, presser ring, measurement device, system, and manufacturing method of article |
| TW201830078A (en) * | 2017-02-13 | 2018-08-16 | 均英精密工業股份有限公司 | Method for manufacturing optical lens having air gap providing optical lenses and optical camera lenses with better imaging quality |
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