CN208283639U - A kind of optical lens system - Google Patents
A kind of optical lens system Download PDFInfo
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- CN208283639U CN208283639U CN201820926367.XU CN201820926367U CN208283639U CN 208283639 U CN208283639 U CN 208283639U CN 201820926367 U CN201820926367 U CN 201820926367U CN 208283639 U CN208283639 U CN 208283639U
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Abstract
The utility model discloses a kind of optical lens systems, when solving stage lamp and needing projection pattern, zoom ratio is bigger, the volume of stage lamp is bigger, the problem of being not easy to the carrying and use of stage lamp, its key points of the technical solution are that, including fixed lens group and adjustable lens group, the adjustable lens group includes times magnification array and focusing group, the focusing group includes at least 6 eyeglasses, the focal length of the fixed lens group and focusing group is positive focal length, the focal length of the times magnification array is negative focal length, the fixed lens group, times magnification array and focusing group are arranged successively, focusing group side is equipped with light source assembly, relative position remains stationary between the light source assembly and fixed lens group, the times magnification array and focusing group are slidably adjusted between light source assembly and fixed lens group, reach with big zoom ratio And purpose small in size.
Description
Technical field
The utility model relates to technical field of lamps, in particular to a kind of optical lens system.
Background technique
Light of stage is also named " stage illumination, lighting ", referred to as " light ".One of stage design modelling means.It is set with light of stage
Standby (such as illuminator, magic lantern, control system) and technological means, as the development of plot shows ring with photochromic and its variation
Border, rendered atmosphere, prominent central person create stage spatial impression and time sense, mould the external of stage performance, and provide
Necessary lighting effects.
When stage lamp needs projection pattern, zoom ratio is bigger, and the volume and length of stage lamp are bigger, is not easy to stage
The carrying and use of lamps and lanterns.
Utility model content
The purpose of the utility model is to provide a kind of optical lens system, has the advantages that big zoom ratio and small in size.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of optical lens system
System, including fixed lens group and adjustable lens group, the adjustable lens group include times magnification array and focusing group, the tune
Coke group includes at least 6 eyeglasses, and the focal length of the fixed lens group and focusing group is positive focal length, the focal length of the times magnification array
For negative focal length, the fixed lens group, times magnification array and focusing group are arranged successively, and focusing group side is equipped with light source group
Part, relative position remains stationary between the light source assembly and fixed lens group, and the times magnification array and focusing group are in light source
It is slidably adjusted between component and fixed lens group.
By using above-mentioned technical proposal, fixed lens group using when fix；Times magnification array and focusing group are when in use
It can move back and forth, keep the adjusting of the system more convenient；Times magnification array for changing whole system amplification factor；Focusing
Group for changing whole system focusing；Focusing group composition number of lenses is more, which can generate 10 times or more of zoom
Than enabling the image of the Systems Projection preferably to be adjusted；The system it is small in size, can be real in shorter adjustable range
The adjusting of existing larger zoom ratio, it is very convenient.
The further setting of the utility model, the focusing group include that the first lens barrel and being mounted in the first lens barrel is successively pacified
Just equipped with the first positive lens, the second positive lens, the first negative lens, third positive lens, the second negative lens, the 4th positive lens, the 5th
Lens, are equipped with the first retainer at one end end opening of the lens barrel, and first retainer is connected to the first positive lens, and described first
The inner wall of lens barrel is fixed with multiple spacer rings, second positive lens, the first negative lens, third positive lens, the second negative lens, the 4th
Positive lens, the 5th positive lens are connected to corresponding spacer ring.
By using above-mentioned technical proposal, focusing group is made of 7 eyeglasses, is not in close contact between eyeglass, structure is steady
It is fixed, convenient for frequently using；Focal power can be shared, reduces and generates high-order spherical aberration and the advanced curvature of field.
The further setting of the utility model, the fixed lens group include the second lens barrel and are sequentially arranged at the second lens barrel
Interior the 6th positive lens, the 7th positive lens and third negative lens, the 6th positive lens and the 7th positive lens are separated from each other, described
7th positive lens and third negative lens are in close contact, and the both ends of second lens barrel are equipped with the second retainer and third retainer, institute
It states the second retainer and is connected to the 6th positive lens, the third retainer is connected to the 7th positive lens and third negative lens.
By using above-mentioned technical proposal, the processing of entire camera lens, the difficulty and cost of test and dress school are reduced.
The further setting of the utility model, the 6th positive lens and the 7th positive lens include crown glass lens or weight crown
Glass lens.
By using above-mentioned technical proposal, crown glass refers to without lead oxide, the optics glass that refractive index is low, dispersion values are little
Glass.Lightweight contain barium monoxide 10% or so, siliceous 74%.Heavy contains barium monoxide 44% or so.Phosphorus matter contains five oxidations
Two phosphorus 70% or so.Crown glass can eliminate the aberration and color difference of lens.
The diameter of the further setting of the utility model, the 6th positive lens is greater than the 7th positive lens and third negative lens
Diameter, the diameter ratio of the diameter of the 6th positive lens and the 7th positive lens is greater than 1.2.
By using above-mentioned technical proposal, reflection of the light between the 6th positive lens and the 7th positive lens is reduced.
The diameter of the further setting of the utility model, the 7th positive lens and third negative lens is equal, and described second
Lens barrel is in horn-like.
It by using above-mentioned technical proposal, propagates optical path along reducing by the second lens barrel, reduces light the 6th just
Reflection between lens and the 7th positive lens, enables projected light to be effectively utilized；The second horn-like lens barrel is conducive to
Process and reduce cost.
The further setting of the utility model, the times magnification array include third lens barrel and are sequentially arranged at third lens barrel
Interior 4th negative lens, mutually from the 4th negative lens the 5th negative lens and be in close contact in the 5th negative lens the 8th just thoroughly
Mirror, the both ends of the third lens barrel are equipped with the 4th retainer and the 5th retainer, and the 4th retainer is connected to the 4th negative lens, institute
It states the 5th retainer and is connected to the 5th negative lens and the 8th positive lens.
By using above-mentioned technical proposal, the processing of entire camera lens, the difficulty and cost of test and dress school are reduced.
The further setting of the utility model is equipped with pattern part or adjustable aperture between the light source assembly and focusing group.
By using above-mentioned technical proposal, image is projected, obtains preferable drop shadow effect；By adjustable aperture into
Row synchronization is in use, 50 times or more of light beam variation effect can be obtained.
The further setting of the utility model, the pattern part is rounded, and the diameter of the pattern part is greater than 10mm.
By using above-mentioned technical proposal, circular pattern part is easily installed and operates, and diameter is greater than the pattern part of 10mm
With preferably projection imaging effect.
The further setting of the utility model, there are two the quantity of the pattern part is set.
By using above-mentioned technical proposal, two patterns can be projected simultaneously, drop shadow effect is presented preferably.
In conclusion the utility model has the following beneficial effects:
1, the system can generate 10 times or more of zoom ratio；
2, the system is synchronous with aperture in use, 50 times or more of light beam variation effect can be obtained.
Generally speaking the utility model, use is small in size, easy to operate, and drop shadow effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the schematic diagram of internal structure of focusing group in the present embodiment；
Fig. 3 is the schematic diagram of internal structure of fixed lens group in the present embodiment；
Fig. 4 is the schematic diagram of internal structure of times magnification array in the present embodiment.
Appended drawing reference: 1, fixed lens group；11, the second lens barrel；111, the second retainer；112, third retainer；12, the 6th just
Lens；13, the 7th positive lens；14, third negative lens；2, times magnification array；21, third lens barrel；211, the 4th retainer；212,
Five retainers；22, the 4th negative lens；23, the 5th negative lens；24, the 8th positive lens；3, focusing group；31, the first lens barrel；311,
One retainer；32, the first positive lens；33, the second positive lens；34, the first negative lens；35, third positive lens；36, the second negative lens；
37, the 4th positive lens；38, the 5th positive lens；39, spacer ring；4, light source assembly；5, pattern part；6, adjustable aperture.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of optical lens system, as depicted in figs. 1 and 2, including fixed lens group 1 and adjustable lens group, it is adjusted
Lens group includes times magnification array 2 and focusing group 3, and focusing group 3 includes at least 6 eyeglasses, fixed lens group 1 and focusing group 3
Focal length is positive focal length, and the focal length of times magnification array 2 is negative focal length, and fixed lens group 1, times magnification array 2 and focusing group 3 are successively
Along same axial alignment, 3 side of focusing group is equipped with light source assembly 4.Light source assembly 4 is LED light source.Light source assembly 4 and fixation
Relative position remains stationary between lens group 1, and times magnification array 2 and focusing group 3 are between light source assembly 4 and fixed lens group 1
Slidably adjust.Pattern part 5 or adjustable aperture 6 are equipped between light source assembly 4 and focusing group 3.Pattern part 5 is rounded, pattern
The diameter of part 5 is greater than 10mm.There are two the quantity of pattern part 5 is set, while two patterns are imaged, obtain satisfied projection effect
Fruit.The combined focal length of the system is 18-330mm；F number is between 1.0-1.5.The optical lens when in use, works as amplification factor
When group 2 is close to focusing group 3, system has minimum angles at this time；When times magnification array 2 is close to fixed lens group 1, system has most at this time
Wide-angle.When cooperating pattern or adjustable aperture 6, whole system can obtain 50 times or more of angle change.The body of the system
Product is small, and the adjusting of larger zoom ratio can be realized in shorter adjustable range, very convenient.
Focusing group 3 includes the first lens barrel 31 and is mounted in the first lens barrel 31 and is sequentially installed with the first positive lens 32, second
Positive lens 33, the first negative lens 34, third positive lens 35, the second negative lens 36, the 4th positive lens 37, the 5th positive lens 38, the
The first retainer 311 is equipped at the both ends open of one lens barrel 31, the first retainer 311 is connected to the first positive lens 32, the first lens barrel 31
Inner wall be alongst uniformly fixed with multiple spacer rings 39, the second positive lens 33, the first negative lens 34, third positive lens
35, the second negative lens 36, the 4th positive lens 37, the 5th positive lens 38 are connected to corresponding spacer ring 39.
As shown in figure 3, fixed lens group 1 include the second lens barrel 11 and be sequentially arranged in the second lens barrel 11 the 6th just thoroughly
Mirror 12, the 7th positive lens 13 and third negative lens 14, the 6th positive lens 12 and the 7th positive lens 13 are separated from each other, the 7th positive lens
13 and third negative lens 14 be in close contact, the both ends of the second lens barrel 11 are equipped with the second retainer 111 and third retainer 112, second
Retainer 111 is connected to the 6th positive lens 12, and third retainer 112 is connected to the 7th positive lens 13 and third negative lens 14.6th just
Lens 12 and the 7th positive lens 13 include crown glass lens or heavy coronal glass lens.The diameter of 6th positive lens 12 is being greater than the 7th just
The diameter of lens 13 and third negative lens 14, the diameter of the 6th positive lens 12 and the diameter ratio of the 7th positive lens 13 are greater than 1.2.
7th positive lens 13 is equal with the diameter of third negative lens 14, and the second lens barrel 11 makes optical path along reducing by the second mirror in horn-like
Cylinder 11 is propagated, and reduces reflection of the light between the 6th positive lens 12 and the 7th positive lens 13, projected light is enable to obtain
It is effective to utilize.The second horn-like lens barrel is conducive to process and reduce cost.
As shown in figure 4, times magnification array 2 includes third lens barrel 21 and is sequentially arranged at the 4th negative lens in third lens barrel 21
22, mutually from the 4th negative lens 22 the 5th negative lens 23 and be in close contact in the 8th positive lens 24 of the 5th negative lens 23,
The both ends of third lens barrel 21 are equipped with the 4th retainer 211 and the 5th retainer 212, and the 4th retainer 211 is connected to the 4th negative lens 22,
5th retainer 212 is connected to the 5th negative lens 23 and the 8th positive lens 24.The stable structure reduces the processing of entire camera lens, surveys
The difficulty and cost of examination and dress school.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of optical lens system, which is characterized in that described adjustable including fixed lens group (1) and adjustable lens group
Lens group includes times magnification array (2) and focusing group (3), and the focusing group (3) includes at least 6 eyeglasses, the fixed lens
The focal length of group (1) and focusing group (3) is positive focal length, and the focal length of the times magnification array (2) is negative focal length, the fixed lens group
(1), times magnification array (2) and focusing group (3) are arranged successively, and focusing group (3) side is equipped with light source assembly (4), described
Relative position remains stationary between light source assembly (4) and fixed lens group (1), and the times magnification array (2) and focusing group (3) exist
It is slidably adjusted between light source assembly (4) and fixed lens group (1).
2. a kind of optical lens system according to claim 1, which is characterized in that the focusing group (3) includes the first mirror
Cylinder (31) and it is mounted on interior the first positive lens (32), the second positive lens (33), first negative of being sequentially installed with of the first lens barrel (31)
Mirror (34), third positive lens (35), the second negative lens (36), the 4th positive lens (37), the 5th positive lens (38), the lens barrel
The first retainer (311) are equipped at the end opening of one end, first retainer (311) is connected to the first positive lens (32), and described first
The inner wall of lens barrel (31) is fixed with multiple spacer rings (39), second positive lens (33), the first negative lens (34), third positive lens
(35), the second negative lens (36), the 4th positive lens (37), the 5th positive lens (38) are connected to corresponding spacer ring (39).
3. a kind of optical lens system according to claim 1, which is characterized in that the fixed lens group (1) includes the
Two lens barrels (11) and the 6th positive lens (12), the 7th positive lens (13) and the third that are sequentially arranged in the second lens barrel (11) are negative saturating
Mirror (14), the 6th positive lens (12) and the 7th positive lens (13) are separated from each other, and the 7th positive lens (13) and third are negative
Lens (14) are in close contact, and the both ends of second lens barrel (11) are equipped with the second retainer (111) and third retainer (112), institute
It states the second retainer (111) and is connected to the 6th positive lens (12), the third retainer (112) is connected to the 7th positive lens (13) and
Three negative lenses (14).
4. a kind of optical lens system according to claim 3, which is characterized in that the 6th positive lens (12) and the 7th
Positive lens (13) includes crown glass lens or heavy coronal glass lens.
5. a kind of optical lens system according to claim 3, which is characterized in that the diameter of the 6th positive lens (12)
Greater than the diameter of the 7th positive lens (13) and third negative lens (14), the diameter and the 7th positive lens of the 6th positive lens (12)
(13) diameter ratio is greater than 1.2.
6. a kind of optical lens system according to claim 5, which is characterized in that the 7th positive lens (13) and third
The diameter of negative lens (14) is equal, and second lens barrel (11) is in horn-like.
7. a kind of optical lens system according to claim 1, which is characterized in that the times magnification array (2) includes the
Trinocular tube (21) and it is sequentially arranged at the 4th negative lens (22) in third lens barrel (21), mutually from the 5th of the 4th negative lens (22)
It negative lens (23) and is in close contact in the 8th positive lens (24) of the 5th negative lens (23), the two of the third lens barrel (21)
End is equipped with the 4th retainer (211) and the 5th retainer (212), and the 4th retainer (211) is connected to the 4th negative lens (22), institute
It states the 5th retainer (212) and is connected to the 5th negative lens (23) and the 8th positive lens (24).
8. a kind of optical lens system according to claim 7, which is characterized in that the light source assembly (4) and focusing group
(3) pattern part (5) or adjustable aperture (6) are equipped between.
9. a kind of optical lens system according to claim 8, which is characterized in that the pattern part (5) is rounded, described
The diameter of pattern part (5) is greater than 10mm.
10. a kind of optical lens system according to claim 9, which is characterized in that the quantity of the pattern part (5) is equipped with
Two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926367.XU CN208283639U (en) | 2018-06-14 | 2018-06-14 | A kind of optical lens system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926367.XU CN208283639U (en) | 2018-06-14 | 2018-06-14 | A kind of optical lens system |
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| Publication Number | Publication Date |
|---|---|
| CN208283639U true CN208283639U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820926367.XU Active CN208283639U (en) | 2018-06-14 | 2018-06-14 | A kind of optical lens system |
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| Country | Link |
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| CN (1) | CN208283639U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835281A (en) * | 2021-08-27 | 2021-12-24 | 歌尔光学科技有限公司 | Projection system |
| WO2022032920A1 (en) * | 2020-08-11 | 2022-02-17 | 苏州中科全象智能科技有限公司 | Projection lens |
| CN115981079A (en) * | 2022-12-22 | 2023-04-18 | 佛山市鼎莱光电科技有限公司 | Projection method and device |
| CN117406399A (en) * | 2023-12-14 | 2024-01-16 | 江西联益光学有限公司 | Optical lens |
-
2018
- 2018-06-14 CN CN201820926367.XU patent/CN208283639U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022032920A1 (en) * | 2020-08-11 | 2022-02-17 | 苏州中科全象智能科技有限公司 | Projection lens |
| CN113835281A (en) * | 2021-08-27 | 2021-12-24 | 歌尔光学科技有限公司 | Projection system |
| CN115981079A (en) * | 2022-12-22 | 2023-04-18 | 佛山市鼎莱光电科技有限公司 | Projection method and device |
| CN117406399A (en) * | 2023-12-14 | 2024-01-16 | 江西联益光学有限公司 | Optical lens |
| CN117406399B (en) * | 2023-12-14 | 2024-03-26 | 江西联益光学有限公司 | Optical lens |
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