CN209624876U - A kind of buckle zoom plane field lens - Google Patents
A kind of buckle zoom plane field lens Download PDFInfo
- Publication number
- CN209624876U CN209624876U CN201920526709.3U CN201920526709U CN209624876U CN 209624876 U CN209624876 U CN 209624876U CN 201920526709 U CN201920526709 U CN 201920526709U CN 209624876 U CN209624876 U CN 209624876U
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- China
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- lens
- buckle
- plane field
- lens barrel
- group
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Abstract
A kind of buckle zoom plane field lens, is related to a kind of plane field lens, belongs to laser technology field.The purpose of this utility model is to provide a kind of plane field lenses for buckling zoom.The technical solution of the utility model is changed by one group of snap device at the axially opposing distance of coaxially arranged movable lens and fixed lens in flat field lens head, to achieve the purpose that change focal length.The shape-designing proposed in the claim of the utility model, it can be ensured that the utility model proposes snap device be only used for plane field lens, be not related to the camera lens exemplary applications in other technologies field.The utility model proposes a kind of plane field lens of adjustable focal length, the practicality is that zoom plane field lens can be common to a variety of working focal distance demands, and compared to multiple fixed focus lens are replaced, use cost is substantially reduced.
Description
Technical field
The utility model relates to a kind of plane field lens, belong to laser technology field.
Background technique
Plane field lens, also referred to as F-Theta f-theta lens, can be in laser scanning or engraving system by optical design
It is applied in system.This lens are suitable for the application such as engraving and tagging system, image transfer and material processing.For laser scanning and
Optimal result may be implemented in many applications in engraving system, plane field lens.Such as a spherical lens can only be in specific song
It is imaged on the spherical surface of rate, and F-Theta f-theta lens can directly be imaged in the plane, the offset of light beam depends on having
The product of focal length and deviation angle tangent value is imitated, this simple relationship does not need complicated electronics correction, quick, phase may be implemented
To cheap and miniaturization scanning system.In addition, the compact design of plane field lens reduces user for realizing image plane
The optical component quantity in face.This lens can be realized closer spot size, thus may be implemented it is higher scanning or
Print resolution ratio and higher engraving or welding density.Most of all, when using this lens, spot size, resolution ratio
With intensity entirely as being nearly all steady state value in plane.Plane field lens can solve many problems related to laser scanning.
Plane field lens is focused suitable for laser at present, is mainly used on laser marking machine.If common plane field lens is divided into
Dry kind using focal length as the classification of distinguishing characteristic, for example focal length is identified as 4 kinds of models in 163mm, 210mm, 330mm, 254mm,
And there is no other differences in addition to focal length is different for above-mentioned four kinds of models.This polytypic of F-Theta field lens is parallel and lacks logical
Certain cost burden is brought to the production application of correlative technology field with the status of property.
Zoom is buckled, refers in particular to the snap device being located on camera lens using one group to adjust the phase of set one group of lens on camera lens
To spacing, to change optical path in camera lens, for the purpose of changing lens focus.
Technical solution of the buckle zoom as a kind of maturation at present, is widely used in the zooming adjustment of various camera lenses.But because
For different camera lenses in different applications needed for snap device moulding and optics of lens design it is different, and because different mirrors
Head is related to respectively different technical fields, so having in the application of respective technical field to buckle zoom as machinery
Structure is to realize the patent of optical target.And the shape-designing proposed in the claim of the utility model, it can be ensured that this reality
It is only used for plane field lens with the snap device of novel proposition, is not related to the camera lens exemplary applications in other technologies field.
Summary of the invention
The purpose of this utility model is to provide a kind of buckle zoom plane field lenses.
The technical solution of the utility model is to be changed in flat field lens head by one group of snap device at coaxially arranged
The axially opposing distance of movable lens and fixed lens, to achieve the purpose that change focal length.
A kind of buckle zoom plane field lens is equipped with the first lens barrel, the second lens barrel, third lens barrel, buckle, the first lens barrel
In be equipped with one group of fixed lens, the first lens barrel side is equipped with several card slots for axially arranging, equipped with one on the inside of the second lens barrel
Buckle, third lens barrel and the second lens barrel are fixedly connected, and one group of movable lens is equipped in third lens barrel.
First lens barrel is one group of rigidly connected cylinder-like shell, is equipped with one group of fixed lens in cylinder-like shell,
Cylinder-like shell side is equipped with several card slots axially arranged.
Second lens barrel is a cylinder-like shell, and the inside of cylinder-like shell is equipped with a buckle.
The third lens barrel is a cylinder-like shell, sets one group of movable lens on cylinder-like shell, cylinder-like shell and
Second lens barrel is fixedly connected.
The snap device is a buckle and several card slots axially arranged, buckle is fixed on the second lens barrel, is buckled
One group of snap device is constituted with card slot.
The buckle any one can need to buckle for spring ball, spring catch, spring leaf, ratchet, annular buckle etc.
The structure type of card slot cooperation.
The fixed lens and movable lens are at coaxially arranged, and the movable lens can pass through one group of snap device
Sliding axially move.Its movable part needs manually adjust, and adjust without using electric power mechanism.
The zoom operational process of above-mentioned apparatus is given below: the first lens barrel is fixedly mounted on to the field lens interface of application apparatus
Place, holds and is pushed axially the second lens barrel, slides the buckle of the second lens barrel side along the card slot of the first lens barrel side, makes card
Button is threaded off from a card slot, another card slot and fixation are tipped in sliding in.Buckle is from a card slot along axial direction to another card slot
Movement will make the second lens barrel axially move relative to the first lens barrel, wherein the second lens barrel is fixedly connected with third lens barrel, the
Trinocular tube will also axially move relative to the first lens barrel.Third lens barrel, which axially moves, will drive one be located on third lens barrel
Group movable lens, one group of movable lens axially move relative to one group of fixed lens being located on the first lens barrel, thus it is possible to vary
By the opticpath of this two groups of lens, achieve the purpose that change focal length.
The following are Detailed description of the inventions.
Fig. 1 is a kind of equal axes axonometric drawing for buckling zoom plane field lens described in the utility model.
Fig. 2 is a kind of main view and cross section A-A schematic diagram for buckling zoom plane field lens described in the utility model.
The following are specific embodiments.
The utility model proposes a kind of plane field lens of adjustable focal length, the practicality is that zoom plane field lens can be general
In a variety of working focal distance demands, compared to multiple fixed focus lens are replaced, use cost is substantially reduced.
The shape-designing proposed in the claim of the utility model, it can be ensured that the utility model proposes snap device only
It can be used for plane field lens, be not related to the camera lens exemplary applications in other technologies field.
Following specific embodiments will be further described the utility model in conjunction with attached drawing.
Referring to fig. 2, the first lens barrel (2) is fixedly mounted on to the field lens interface of application apparatus, holds and is pushed axially
Second lens barrel (1) slides the buckle (3) of the second lens barrel (1) side along the card slot (4) of the first lens barrel (2) side, makes to buckle
(3) it threads off from a card slot (4), sliding is tipped another card slot (4) in and fixed.(3) are buckled from a card slot (4) along axial direction
Movement to another card slot (4) will make the second lens barrel (1) axially move relative to the first lens barrel (2), wherein the second mirror
Cylinder (1) is fixedly connected with third lens barrel (5), and third lens barrel (5) will also axially move relative to the first lens barrel (2).Third mirror
Cylinder (5) axially moves one group of movable lens (6) being located at drive on third lens barrel (5), one group of movable lens (6) relative to
The fixed lens (7) of one group be located on the first lens barrel (2) axially move, thus it is possible to vary by the optical link of this two groups of lens
Diameter achievees the purpose that change focal length.
Claims (8)
1. a kind of buckle zoom plane field lens, it is characterised in that be equipped with the first lens barrel, the second lens barrel, third lens barrel, buckle, first
One group of fixed lens is equipped in lens barrel, the first lens barrel side is equipped with several card slots axially arranged, is equipped on the inside of the second lens barrel
One buckle, third lens barrel and the second lens barrel are fixedly connected, and one group of movable lens is equipped in third lens barrel.
2. a kind of buckle zoom plane field lens as described in claim 1, it is characterised in that the first lens barrel is one group of rigid connection
Cylinder-like shell, one group of fixed lens is set on one group of rigidly connected cylinder-like shell, one group is rigidly connected cylindric outer
The side of shell is equipped with several card slots axially arranged.
3. a kind of buckle zoom plane field lens as described in claim 1, it is characterised in that the second lens barrel is outside a cylindrical shape
Shell, the inside of a cylinder-like shell are equipped with a buckle.
4. a kind of buckle zoom plane field lens as described in claim 1, it is characterised in that third lens barrel is outside a cylindrical shape
Shell sets one group of movable lens on one cylinder-like shell.
5. a kind of buckle zoom plane field lens as claimed in claim 4, it is characterised in that one cylinder-like shell and the
Two lens barrels are fixedly connected.
6. a kind of buckle zoom plane field lens as described in claim 1, it is characterised in that the buckle, which is divided into, is located at the second mirror
One buckle of cylinder inside and several card slots axially arranged for being located at the first lens barrel side, buckle are worked in coordination with card slot,
Constitute one group of snap device.
7. a kind of buckle zoom plane field lens as claimed in claim 6, it is characterised in that the fixed lens and movable lens
At coaxially arranged, and the movable lens can be axially moved by one group of snap device.
8. a kind of buckle zoom plane field lens as described in claim 1, it is characterised in that each movable part needs manually adjust,
It is adjusted without using electric power mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526709.3U CN209624876U (en) | 2019-04-18 | 2019-04-18 | A kind of buckle zoom plane field lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526709.3U CN209624876U (en) | 2019-04-18 | 2019-04-18 | A kind of buckle zoom plane field lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209624876U true CN209624876U (en) | 2019-11-12 |
Family
ID=68458750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920526709.3U Expired - Fee Related CN209624876U (en) | 2019-04-18 | 2019-04-18 | A kind of buckle zoom plane field lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209624876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099222A (en) * | 2020-09-21 | 2020-12-18 | 淮安市岽盛光电仪器有限公司 | Flat field lens assembly focusing device for telescope |
-
2019
- 2019-04-18 CN CN201920526709.3U patent/CN209624876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112099222A (en) * | 2020-09-21 | 2020-12-18 | 淮安市岽盛光电仪器有限公司 | Flat field lens assembly focusing device for telescope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 |