CN207882546U - A kind of balsaming lens - Google Patents
A kind of balsaming lens Download PDFInfo
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- CN207882546U CN207882546U CN201721804061.9U CN201721804061U CN207882546U CN 207882546 U CN207882546 U CN 207882546U CN 201721804061 U CN201721804061 U CN 201721804061U CN 207882546 U CN207882546 U CN 207882546U
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- lens
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- balsaming
- positive lens
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Abstract
The utility model is related to a kind of optical lens technologies, more particularly to a kind of balsaming lens, including positive and negative lenses, the positive lens is biconvex lens, the negative lens is concave-convex lens, and the convex surface of the positive lens and the concave surface of negative lens are glued, and two eyeglasses use photosensitive glue glued adhesion, make that airspace is not present between positive lens and negative lens, the diameter of the positive and negative lenses is 51.45 51.5mm.The convex surface of the positive lens of the balsaming lens and the cooperation of the concave surface of negative lens are glued, using photosensitive glue glued adhesion, the defects of making glue-line free from admixture, bubble, dust, ensure image quality；The diameter of positive and negative lenses is 51.45 51.5mm, it is adapted to the eyepiece system that zoom multiple is 1x 2.5x, the focal length of formation is 240 ± 2mm, as the universal objective lenses group for being adapted to small zoom multiple eyepiece system, saves the process manufacturing cost and use cost, improves image quality.
Description
Technical field
The utility model is related to a kind of optical lens technologies, especially a kind of balsaming lens for objective system.
Background technology
Lens are most indispensable components in landscape lens system, in the object lens, eyepiece and other component of landscape lens,
Various forms of lens can be used.In objective lens parts, objective lens are typically to be formed with two lens gluings, single saturating to overcome
The less situation of the image defects and regulated variable of mirror, is increased, and then can improve using regulated variable after two lens combinations
The image quality of object lens.
In landscape lens, when object lens are used cooperatively with eyepiece, balsaming lens may be used in objective lenses, and balsaming lens can disappear
Except aberration, solve the problems, such as that imaging is bad.For small-sized landscape lens, keeps overall structure compacter slim and graceful, be convenient for
It carries and uses；But the balsaming lens of current object lens is designed for heavy caliber landscape lens mostly, for medium caliber
Small-sized landscape lens, in order to be adapted to the eyepiece system that zoom ratio is 1x-2.5x, corresponding objective lens group needs, which exclusively carry out, to be set
Meter, it is that 200-300mm improves image quality to meet imaging needs to make the focal length of object lens.
Utility model content
The goal of the invention of the utility model is：Balsaming lens for existing object lens is to be directed to heavy caliber landscape lens mostly
It is designed, in order to be adapted to the eyepiece system that zoom ratio is 1x-2.5x, corresponding objective lens group needs, which exclusively carry out, to be set
Meter, provides a kind of balsaming lens at the technical issues of making the focal length of object lens be 200-300mm, the positive lens of the balsaming lens it is convex
Face and the cooperation of the concave surface of negative lens are glued, using photosensitive glue glued adhesion, the defects of making glue-line free from admixture, bubble, dust, ensure imaging
Quality；The diameter of positive and negative lenses is 51.45-51.5mm, is adapted to the eyepiece system that zoom multiple is 1x-2.5x,
The focal length of formation is 240 ± 2mm, becomes the universal objective lenses group for being adapted to small zoom multiple eyepiece system, saves work
Skill manufacturing cost and use cost improve image quality.
To achieve the goals above, the technical solution adopted in the utility model is：
A kind of balsaming lens, including positive and negative lenses, the positive lens are biconvex lens, and the negative lens is bumps
The concave surface of lens, the convex surface of the positive lens and negative lens is glued, and the photosensitive glue glued adhesion of use of two eyeglasses, make positive lens with
Airspace is not present between negative lens, the diameter of the positive and negative lenses is 51.45-51.5mm.
The balsaming lens includes positive and negative lenses, and positive lens is biconvex lens, negative lens is concave-convex lens, just thoroughly
The convex surface of mirror and the cooperation of the concave surface of negative lens are glued, using photosensitive glue glued adhesion, the defects of making glue-line free from admixture, bubble, dust, protect
Demonstrate,prove image quality；The diameter of positive and negative lenses is 51.45-51.5mm, is adapted to the eyepiece that zoom multiple is 1x-2.5x
System, the focal length of formation are 240 ± 2mm, are satisfied the use demand, and become universal and are adapted to small zoom multiple eyepiece system
Objective lenses group saves the process manufacturing cost and use cost, improves image quality.
As the preferred embodiment of the utility model, the positive lens is made of crown board class optical glass material, described negative saturating
Mirror is made of flint class optical glass material.Specifically, H-BAK2 materials can be selected in positive lens, and ZF3 materials can be selected in negative lens.
As the preferred embodiment of the utility model, the center thickness of the positive lens is 9 ± 0.05mm, and positive lens two
Crowning radius is respectively the first crowning radius of positive lens 150.31mm ± 1.25 μm, the second crowning radius of positive lens 114.533mm
± 1.25 μm, the center thickness of the negative lens is 4 ± 0.05mm, and the negative lens concave on negative lens is also
114.533mm ± 1.25 μm, negative lens crowning radius are 332.51mm ± 1.25 μm.
Foregoing description can see, and the second crowning radius of positive lens is identical with negative lens concave size, installation when side
To on the contrary, conducive to ensureing to be bonded completely cementing between positive and negative lenses, airspace is completely eliminated, is conducive in limited sky
Interior installation keeps overall structure compacter slim and graceful, conducive to stable light transmission path is obtained.
As the preferred embodiment of the utility model, it is coated with multi-layered antireflection coating on the first convex surface of positive lens, in negative lens
Also multi-layered antireflection coating is coated on convex surface, and the light penetration of anti-reflection film is greater than or equal to 99%.On the first convex surface of positive lens and bear
Multi-layered antireflection coating is plated on the convex surface of lens, and the second convex surface of positive lens and the cooperation of the concave surface of negative lens are glued, thus make
It obtains and is equipped with anti-reflection film on the incidence surface and light-emitting surface of entire balsaming lens, increase light penetration, improve entire balsaming lens
Image quality.
As the preferred embodiment of the utility model, the wave band peak value of the anti-reflection film is 550nm, wave band 400nm-
700nm。
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1, the convex surface of the positive lens of the balsaming lens and the cooperation of the concave surface of negative lens are glued, using photosensitive glue glued adhesion, make glue
The defects of layer free from admixture, bubble, dust, ensure image quality；The diameter of positive and negative lenses is 51.45-51.5mm, is fitted
It should be 240 ± 2mm in the eyepiece system that zoom multiple is 1x-2.5x, the focal length of formation, become universal and be adapted to small zoom
The objective lenses group of multiple eyepiece system saves the process manufacturing cost and use cost, improves image quality；
2, the second crowning radius of positive lens is identical with negative lens concave size, and direction when installation is on the contrary, conducive to ensureing
It is bonded completely cementing between positive and negative lenses, completely eliminates airspace, be conducive to installation in a limited space, make entirety
Structure is compacter slim and graceful, conducive to stable light transmission path is obtained；
3, plate multi-layered antireflection coating on the first convex surface of positive lens and the convex surface of negative lens, and the second convex surface of positive lens and
The concave surface cooperation of negative lens is glued, allows for being equipped with anti-reflection film on the incidence surface and light-emitting surface of entire balsaming lens in this way, increase
Add light penetration, improves the image quality of entire balsaming lens.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model balsaming lens.
Fig. 2 is the structural schematic diagram of positive lens in Fig. 1.
Fig. 3 is the structural schematic diagram of negative lens in Fig. 1.
Fig. 4 is that light passes through the transmission route figure after novel balsaming lens in embodiment.
It is marked in figure：1- positive lens, 2- negative lenses, D- balsaming lens diameters, t1- positive lens center thickness, t2- negative lenses
Center thickness, the first crowning radius of R1- positive lens, the second crowning radius of R2- positive lens, R3- negative lens concaves.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
Embodiment
As shown in Figures 1 to 4, the balsaming lens of the present embodiment, including positive lens 1 and negative lens 2, the positive lens 1 be
Biconvex lens, the negative lens 2 are concave-convex lens, and the convex surface of the positive lens 1 is glued with the concave surface of negative lens 2, and two mirrors
The photosensitive glue glued adhesion of use of piece makes that airspace is not present between positive lens 1 and negative lens 2, the positive lens 1 of the present embodiment and negative
The diameter of lens 2 is 51.5mm, and tolerance is 0 mm to -0.05mm.
The balsaming lens of the present embodiment includes positive and negative lenses, and positive lens is biconvex lens, negative lens is concave-convex
Lens, the convex surface of positive lens and the concave surface cooperation of negative lens are glued, using photosensitive glue glued adhesion, make glue-line free from admixture, bubble, dust
The defects of, ensure image quality；The diameter of positive and negative lenses is 51.5mm, and tolerance is 0 mm to -0.05mm, is adapted to
In the eyepiece system that zoom multiple is 1x-2.5x, the focal length of formation is 240 ± 2mm, becomes universal and is adapted to small zoom times
The objective lenses group of number eyepiece system saves the process manufacturing cost and use cost, improves image quality.
Further, the positive lens 1 is made of crown board class optical glass material, and the negative lens 2 is flint class optics
Glass material is made；In the present embodiment, positive lens 1 selects H-BAK2 materials, negative lens 2 to select ZF3 materials.
Further, the positive lens center thickness t1 is 9 ± 0.05mm, and 1 two crowning radius of positive lens are distinguished
It is for the first crowning radius of positive lens R1：150.31mm ± 1.25 μm, the second crowning radius of positive lens R2 are：114.533mm±
1.25 μm, the negative lens center thickness t2 is 4 ± 0.05mm, and the negative lens concave R3 on negative lens 2 is also
114.533mm ± 1.25 μm, negative lens crowning radius are 332.51mm ± 1.25 μm.
It can be seen that the second crowning radius of positive lens in the present embodiment is identical with negative lens concave size, installation
Shi Fangxiang completely eliminates airspace on the contrary, conducive to ensureing to be bonded completely cementing between positive and negative lenses, is conducive to limited
Space in install, keep overall structure compacter slim and graceful, conducive to stable light transmission path is obtained.
Further, it is coated with multi-layered antireflection coating on the first convex surface of positive lens, multilayer is also coated on the convex surface of negative lens
Anti-reflection film, and the light penetration of anti-reflection film is equal to 99.5%.It is plated on the first convex surface of positive lens and the convex surface of negative lens more
Layer anti-reflection film, and the second convex surface of positive lens and the cooperation of the concave surface of negative lens are glued, allow for entire balsaming lens in this way enters light
It is equipped with anti-reflection film on face and light-emitting surface, increases light penetration, improves the image quality of entire balsaming lens.
Specifically, the wave band peak value of above-mentioned anti-reflection film is 550nm, wave band 400nm-700nm.
As shown in figure 4, the transmission route figure after the novel balsaming lens of light through this embodiment, improves image quality.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (6)
1. a kind of balsaming lens, which is characterized in that including positive and negative lenses, the positive lens is biconvex lens, described negative
Lens are concave-convex lens, and the convex surface of the positive lens and the concave surface of negative lens are glued, and two eyeglasses use photosensitive glue glued adhesion, make
Airspace is not present between positive lens and negative lens, the diameter of the positive and negative lenses is 51.45-51.5mm.
2. balsaming lens according to claim 1, which is characterized in that the positive lens is crown board class optical glass material system
At the negative lens is made of flint class optical glass material.
3. balsaming lens according to claim 1 or 2, which is characterized in that the center thickness of the positive lens be 9 ±
0.05mm, and two crowning radius of positive lens are respectively the first crowning radius of positive lens 150.31mm ± 1.25 μm, positive lens
Two crowning radius 114.533mm ± 1.25 μm.
4. balsaming lens according to claim 3, which is characterized in that the center thickness of the negative lens is 4 ± 0.05mm,
And the negative lens concave on negative lens be also 114.533mm ± 1.25 μm, negative lens crowning radius be 332.51mm ±
1.25μm。
5. balsaming lens according to claim 4, which is characterized in that it is anti-reflection on the first convex surface of positive lens to be coated with multilayer
Film is also coated with multi-layered antireflection coating on the convex surface of negative lens, and the light penetration of anti-reflection film is greater than or equal to 99%.
6. balsaming lens according to claim 5, which is characterized in that the wave band peak value of the anti-reflection film is 550nm, wave band
For 400nm-700nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804061.9U CN207882546U (en) | 2017-12-21 | 2017-12-21 | A kind of balsaming lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721804061.9U CN207882546U (en) | 2017-12-21 | 2017-12-21 | A kind of balsaming lens |
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| Publication Number | Publication Date |
|---|---|
| CN207882546U true CN207882546U (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721804061.9U Active CN207882546U (en) | 2017-12-21 | 2017-12-21 | A kind of balsaming lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904542A (en) * | 2021-01-28 | 2021-06-04 | 中国科学院西安光学精密机械研究所 | Low-distortion high-definition continuous zooming optical system |
-
2017
- 2017-12-21 CN CN201721804061.9U patent/CN207882546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112904542A (en) * | 2021-01-28 | 2021-06-04 | 中国科学院西安光学精密机械研究所 | Low-distortion high-definition continuous zooming optical system |
| CN112904542B (en) * | 2021-01-28 | 2022-03-04 | 中国科学院西安光学精密机械研究所 | Low-distortion high-definition continuous zooming optical system |
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