CN107272162A - Focal length is 25mm optical lens - Google Patents
Focal length is 25mm optical lens Download PDFInfo
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- CN107272162A CN107272162A CN201710720795.7A CN201710720795A CN107272162A CN 107272162 A CN107272162 A CN 107272162A CN 201710720795 A CN201710720795 A CN 201710720795A CN 107272162 A CN107272162 A CN 107272162A
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- Prior art keywords
- eyeglass
- optically focused
- group
- focal length
- optical lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses the optical lens that a kind of focal length is 25mm, including being from left to right arranged in order, and the first optically focused group, the second optically focused group, diverging group and the image planes of center line on the same line, the distance of first optically focused group and the second optically focused group is 5.49mm, the distance of second optically focused group and diverging group is 8.18mm, and its focal length is 25mm.Acted on by the optically focused of two optically focused groups, convergence of the light in the external world Jing Guo the first optically focused group can be caused to act on, then on the second optically focused group is acted on, then after disperse function by diverging group, be ultimately applied in image planes.Thus, it is possible to which the focal length is applied into detection device for 25mm optical lens or taken pictures with camera, applicability is improved.
Description
Technical field
The invention belongs to a kind of light path, more particularly, to the optical lens that a kind of focal length is 25mm.
Background technology
With the development of science and technology, requirement of the people to various products is gradually diversified.In every detection device and phase
There is the light path for using different pixels requirement in machine, but the light path in detection device can not lead to mostly with magazine light path
With adding the production difficulty of optical mirror slip.
The content of the invention
It is an object of the invention to provide the optical lens that a kind of focal length is 25mm, it can solve the problem that in above mentioned problem at least
One.
According to an aspect of the invention, there is provided a kind of focal length is 25mm optical lens, including from left to right successively
Arrangement, and the first optically focused group, the second optically focused group, diverging group and the image planes of center line on the same line, the first optically focused group and the
The distance of two optically focused groups is 5.49mm, and the distance of the second optically focused group and diverging group is 8.18mm, and its focal length is 25mm.
The beneficial effects of the invention are as follows：Acted on by the optically focused of two optically focused groups, the light in the external world can be caused to pass through the
The convergence of one optically focused group is acted on, then on the second optically focused group is acted on, then after the disperse function by diverging group, final effect
In image planes.Thus, it is possible to which the focal length is applied into detection device for 25mm optical lens or taken pictures with camera, improve and fit
The property used.
In some embodiments, the first optically focused group includes the first eyeglass and the second eyeglass being from left to right arranged in order,
The center thickness of first eyeglass and the second eyeglass is respectively 1.5mm and 4.6mm, on the center line of the first eyeglass and the second eyeglass
Distance is 2.95mm, and the first eyeglass is concavees lens, and the radius of left and right sides minute surface is respectively 145.9mm and 27.02mm, the second mirror
Piece is convex lens, and the radius of left and right sides minute surface is 104.74mm.Thus, ambient can first pass through the remittance of the first eyeglass
It is poly-, then converged through the second eyeglass so that for light is compared with ambient, there occurs that convergence is acted on.
In some embodiments, the second optically focused group includes the 3rd eyeglass and the 4th eyeglass being from left to right arranged in order,
The center thickness of 3rd eyeglass and the 4th eyeglass is respectively 5.94mm and 7.04mm, on the center line of the 3rd eyeglass and the 4th eyeglass
Distance be 1.19mm, the 3rd eyeglass is convex lens, and the radius of left and right sides minute surface is respectively 24.23mm and 420.01mm, the
The left and right sides minute surface of four eyeglasses is raised to the left, and radius is respectively 14.22mm and 8.64mm.Thus, the 3rd eyeglass and the 4th
Eyeglass can twice be converged to light.
In some embodiments, diverging group includes the 5th eyeglass, the 6th eyeglass and the 7th being from left to right arranged in order
Eyeglass, the center thickness of the 5th eyeglass, the 6th eyeglass and the 7th eyeglass is respectively 4.79mm, 3.6mm and 5.15mm, the 5th eyeglass
It is that distance on 0.2mm, the center line of the 6th eyeglass and the 7th eyeglass is 0.2mm with the distance on the center line of the 6th eyeglass,
The left and right sides minute surface of 5th eyeglass is raised to the right, and radius is respectively 9.69mm and 15.56mm, and the 6th eyeglass is convex lens,
The radius of left and right sides minute surface is respectively 192.84mm and 35.81mm, and the 7th eyeglass is convex lens, the radius of left and right sides minute surface
It is 54.35mm.Thus, the 5th eyeglass and the 6th eyeglass are disperseed to light, then light is converged through the 7th eyeglass,
It is ultimately applied in image planes.
In some embodiments, focal length is 25mm optical lens, and its pixel is 5,000,000.Thus, it is possible to meet correlation
The use requirement of pixel.
In some embodiments, the 4th eyeglass and the 5th eyeglass are engagement eyeglass.
Brief description of the drawings
Fig. 1 is the light path principle schematic diagram that the focal length of the present invention is 25mm optical lens.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Reference picture 1：Focal length is 25mm optical lens, including is from left to right arranged in order, and center line is in same straight line
On the first optically focused group 1, the second optically focused group 2, diverging group 3 and image planes 4, the distance of the first optically focused group 1 and the second optically focused group 2 is
The distance of 5.49mm, the second optically focused group 2 and diverging group 3 is 8.18mm, and its focal length is 25mm.
First optically focused group 1 includes the first eyeglass 11 and the second eyeglass 12 being from left to right arranged in order, the He of the first eyeglass 11
The center thickness of second eyeglass 12 is respectively 1.5mm and 4.6mm, the distance on the center line of the first eyeglass 11 and the second eyeglass 12
For 2.95mm, the first eyeglass 11 is concavees lens, and the radius of left and right sides minute surface is respectively 145.9mm and 27.02mm, the second eyeglass
12 be convex lens, and the radius of left and right sides minute surface is 104.74mm.As shown in figure 1, dotted line upward arrow direction is light in figure
Direction of transfer schematic diagram.
Thus, extraneous light is tentatively converged after the first eyeglass 11, then occurs phase by the second eyeglass 12
The diverging answered, the degree of divergence of light is less than convergence degree so that light is converged after the first optically focused group 1.
Second optically focused group 2 includes the 3rd eyeglass 21 and the 4th eyeglass 22 being from left to right arranged in order, the He of the 3rd eyeglass 21
The center thickness of 4th eyeglass 22 is respectively 5.94mm and 7.04mm, on the center line of the 3rd eyeglass 21 and the 4th eyeglass 22 away from
From for 1.19mm, the 3rd eyeglass 21 is convex lens, and the radius of left and right sides minute surface is respectively 24.23mm and 420.01mm, the 4th
The left and right sides minute surface of eyeglass 22 is raised to the left, and radius is respectively 14.22mm and 8.64mm.
Thus, the effect of light after the first optically focused group 1 is in the second optically focused group 2, the 3rd mirror in the second optically focused group 2
The eyeglass 22 of piece 21 and the 4th carries out the effect of convergence twice to light, then remakes with diverging group 3.
Diverging group 3 includes the 5th eyeglass 31, the 6th eyeglass 32 and the 7th eyeglass 33 being from left to right arranged in order, the 5th mirror
The center thickness of piece 31, the 6th eyeglass 32 and the 7th eyeglass 33 is respectively 4.79mm, 3.6mm and 5.15mm, the He of the 5th eyeglass 33
Distance on the center line of 6th eyeglass 32 is 0.2mm, and the distance on the center line of the 6th eyeglass 32 and the 7th eyeglass 33 is
0.2mm, the left and right sides minute surface of the 5th eyeglass 31 is raised to the right, and radius is respectively 9.69mm and 15.56mm, the 6th eyeglass 32
For convex lens, the radius of left and right sides minute surface is respectively 192.84mm and 35.81mm, and the 7th eyeglass 33 is convex lens, left and right two
The radius in side mirror face is 54.35mm.
Thus, the 5th eyeglass 31, the 6th eyeglass 32 and the 7th eyeglass 33 are gradually dissipated light, are ultimately applied to picture
On face 4.
Focal length is 25mm optical lens, and its pixel is 5,000,000, and the light channel structure can be used in detector or camera
On, increase the scope of application.
4th eyeglass 22 and the 5th eyeglass 31 are engagement eyeglass.Thus, it is possible to meet the delivery request of light.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (6)
1. focal length is 25mm optical lens, it is characterised in that including being from left to right arranged in order, and center line is in same straight line
On the first optically focused group (1), the second optically focused group (2), diverging group (3) and image planes (4), the first optically focused group (1) and second poly-
The distance of light group (2) is 5.49mm, and the distance of the second optically focused group (2) and diverging group (3) is 8.18mm, and its focal length is
25mm。
2. focal length according to claim 1 is 25mm optical lens, it is characterised in that the first optically focused group (1) bag
Include the first eyeglass (11) and the second eyeglass (12) being from left to right arranged in order, first eyeglass (11) and the second eyeglass (12)
Center thickness be respectively 1.5mm and 4.6mm, the distance on the center line of first eyeglass (11) and the second eyeglass (12) is
2.95mm, first eyeglass (11) is concavees lens, and the radius of left and right sides minute surface is respectively 145.9mm and 27.02mm, described
Second eyeglass (12) is convex lens, and the radius of left and right sides minute surface is 104.74mm.
3. focal length according to claim 2 is 25mm optical lens, it is characterised in that the second optically focused group (2) bag
Include the 3rd eyeglass (21) and the 4th eyeglass (22) being from left to right arranged in order, the 3rd eyeglass (21) and the 4th eyeglass (22)
Center thickness be respectively 5.94mm and 7.04mm, the distance on the center line of the 3rd eyeglass (21) and the 4th eyeglass (22)
For 1.19mm, the 3rd eyeglass (21) is convex lens, and the radius of left and right sides minute surface is respectively 24.23mm and 420.01mm,
The left and right sides minute surface of 4th eyeglass (22) is raised to the left, and radius is respectively 14.22mm and 8.64mm.
4. focal length according to claim 3 be 25mm optical lens, it is characterised in that the diverging group (3) include from
Left-to-right the 5th eyeglass (31), the 6th eyeglass (32) and the 7th eyeglass (33) being arranged in order, the 5th eyeglass (31), the 6th
The center thickness of eyeglass (32) and the 7th eyeglass (33) is respectively 4.79mm, 3.6mm and 5.15mm, the 5th eyeglass (33) and
Distance on the center line of 6th eyeglass (32) is 0.2mm, on the center line of the 6th eyeglass (32) and the 7th eyeglass (33)
Distance be 0.2mm, the left and right sides minute surface of the 5th eyeglass (31) is raised to the right, radius be respectively 9.69mm and
15.56mm, the 6th eyeglass (32) is convex lens, and the radius of left and right sides minute surface is respectively 192.84mm and 35.81mm, institute
The 7th eyeglass (33) is stated for convex lens, the radius of left and right sides minute surface is 54.35mm.
5. the optical lens that the focal length according to any one of Claims 1 to 4 is 25mm, it is characterised in that its pixel is 500
Ten thousand.
6. focal length according to claim 5 is 25mm optical lens, it is characterised in that the 4th eyeglass (22) and the
Five eyeglasses (31) are engagement eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720795.7A CN107272162B (en) | 2017-08-18 | 2017-08-18 | Optical lens with focal length of 25mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720795.7A CN107272162B (en) | 2017-08-18 | 2017-08-18 | Optical lens with focal length of 25mm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107272162A true CN107272162A (en) | 2017-10-20 |
| CN107272162B CN107272162B (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720795.7A Active CN107272162B (en) | 2017-08-18 | 2017-08-18 | Optical lens with focal length of 25mm |
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| Country | Link |
|---|---|
| CN (1) | CN107272162B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203464906U (en) * | 2013-01-30 | 2014-03-05 | 佛山市北创光电科技有限公司 | Lens center thickness optical detection instrument light path |
| CN104407430A (en) * | 2014-12-02 | 2015-03-11 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN204229034U (en) * | 2014-12-02 | 2015-03-25 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN204313121U (en) * | 2014-12-11 | 2015-05-06 | 广州市雅江光电设备有限公司 | A kind of LED stage lamp light path system |
| CN105242385A (en) * | 2015-11-05 | 2016-01-13 | 福建福光股份有限公司 | Glass aspheric day and night optical zoom lens with low zoom ratio |
-
2017
- 2017-08-18 CN CN201710720795.7A patent/CN107272162B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203464906U (en) * | 2013-01-30 | 2014-03-05 | 佛山市北创光电科技有限公司 | Lens center thickness optical detection instrument light path |
| CN104407430A (en) * | 2014-12-02 | 2015-03-11 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN204229034U (en) * | 2014-12-02 | 2015-03-25 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN204313121U (en) * | 2014-12-11 | 2015-05-06 | 广州市雅江光电设备有限公司 | A kind of LED stage lamp light path system |
| CN105242385A (en) * | 2015-11-05 | 2016-01-13 | 福建福光股份有限公司 | Glass aspheric day and night optical zoom lens with low zoom ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107272162B (en) | 2023-03-28 |
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