CN104238094A - Fog penetration lens - Google Patents
Fog penetration lens Download PDFInfo
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- CN104238094A CN104238094A CN201410544783.XA CN201410544783A CN104238094A CN 104238094 A CN104238094 A CN 104238094A CN 201410544783 A CN201410544783 A CN 201410544783A CN 104238094 A CN104238094 A CN 104238094A
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Abstract
The invention relates to a fog penetration lens, comprising first to fourth lens groups, wherein the first lens group comprises a first lens, a second lens and a third lens, and the first lens and the second lens are combined to form a first cemented lens; the second lens group comprises a fourth lens, a fifth lens and a sixth lens, and the fifth and sixth lenses are combined to form a second cemented lens; the third lens group comprises a seventh lens, an eighth lens and a ninth lens, and the eighth and ninth lenses are combined to form a third cemented lens; the fourth lens group comprises an eleventh lens and a twelfth lens, a thirteenth lens and a fourteenth lens, and the eleventh lens and the twelfth lens are combined to form a fourth cemented lens; the first lens group moves forwards and backwards, so that in the case of long focus, consistency of far and near target imaging target surface positions is ensured, and the second lens group G2 and the third lens group G3 move relatively and regularly in a zooming process. Correcting lens groups are not needed to be added into a lens circuit and an optical system, and thereby an image surface of the lens does not displace after the filter lens is changed, and the fog penetration function of the lens is achieved.
Description
Technical field
The invention belongs to optical lens, the fog penetration lens that particularly a kind of visible light lens is additional, the use under the terrible weather environment such as mist, steam, sleet.
Background technology
In current lens design, camera lens must ensure there is very high transmitance at visible ray and near-infrared band, and carries out ensureing that image planes are not subjected to displacement after correction ensures switching to aberration in two wave band handoff procedures.In order to realize above-mentioned effect, prior art adds in lens circuit and optical system to be revised mirror and to form a team aberration correction, by camera lens Difference Control in focal plane.Prior art can meet the needs of camera lens fog penetrating function, but it is while camera lens adds filter glass, need add add filter glass in lens circuit and optical system while and revise mirror group, Penetrating Fog part-structure will be brought so complicated, the large and high in cost of production problem of space hold.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of fog penetration lens, do not need to add in lens circuit and optical system and revise mirror group, after can realizing lens filter switching, image planes are not subjected to displacement, and realize camera lens fog penetrating function.
The present invention solves the technical scheme that its technical matters takes: it comprises the first lens combination G1, the second lens combination G2, the 3rd lens G3, the 4th lens combination G4; The first described lens combination G1 is the refracting set just organized, and is made up of the first eyeglass L11, the second eyeglass L12 and the 3rd eyeglass L13, and the first eyeglass L11 and the second eyeglass L12 is combined as the first gummed mirror; The second described lens combination G2 is the refracting set of negative group, and be made up of the 4th eyeglass L21, the 5th eyeglass L22 and the 6th eyeglass L23, the 5th eyeglass L22 and the 6th eyeglass L23 is combined as the second gummed mirror; The 3rd described lens combination G3 is the refracting set just organized, and is made up of the 7th eyeglass L31, the 8th eyeglass L32, the 9th eyeglass L33, and the 8th eyeglass L32, the 9th eyeglass L33 are combined as the 3rd gummed mirror; The 4th described lens combination G4 is the refracting set just organized, and is made up of the tenth eyeglass L41, the 11 eyeglass L42, the 12 eyeglass L43, the 13 eyeglass L44, the 14 eyeglass L45, and the tenth eyeglass L44, the 11 eyeglass L45 are combined as the 4th gummed mirror; First lens combination G1 moves forward and backward, under realizing long-focus situation, ensure the consistance of far and near target imaging target position, second lens combination G2 and the 3rd lens combination G3 in zooming procedure with certain rule relative motion, the first mechanical variable interval D5 is had between the first described lens combination G1 and the second lens combination G2, the second mechanical variable interval D10 is had between second lens combination G2 and the 3rd lens combination G3, there is the second mechanical variable interval D15 to be mechanical variable interval between 3rd lens combination G3 and the 4th lens combination G4, ensure the consistance of lens imaging target position; When system becomes focal length from short Jiao, the second lens combination G2 and the 3rd lens combination G3, according to mobile in the middle of two side direction, reaches minimum distance during focal length position; Short burnt D5, D15 are the shortest, and D10 is the longest, and focal length D5, D15 are the longest, and D10 is the shortest.
Structure of the present invention is simple, easy to operate.Not only save lens space, reduce production cost, improve can property, and has excellent optics Penetrating Fog performance.Therefore, the present invention meets the requirement of scale of mass production, has good market outlook.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the short burnt transfer curve figure of optics of the present invention;
Fig. 3 is burnt transfer curve figure in optics of the present invention;
Fig. 4 is optics focal length transfer curve figure of the present invention.
Embodiment:
As shown in Figure 1, the present invention includes the first lens combination G1, the second lens combination G2, the 3rd lens G3, the 4th lens combination G4; The first described lens combination G1 is the refracting set just organized, and is made up of the first eyeglass L11, the second eyeglass L12 and the 3rd eyeglass L13, and the first eyeglass L11 and the second eyeglass L12 is combined as the first gummed mirror; The second described lens combination G2 is the refracting set of negative group, and be made up of the 4th eyeglass L21, the 5th eyeglass L22 and the 6th eyeglass L23, the 5th eyeglass L22 and the 6th eyeglass L23 is combined as the second gummed mirror; The 3rd described lens combination G3 is the refracting set just organized, and is made up of the 7th eyeglass L31, the 8th eyeglass L32, the 9th eyeglass L33, and the 8th eyeglass L32, the 9th eyeglass L33 are combined as the 3rd gummed mirror; The 4th described lens combination G4 is the refracting set just organized, and is made up of the tenth eyeglass L41, the 11 eyeglass L42, the 12 eyeglass L43, the 13 eyeglass L44, the 14 eyeglass L45, and the tenth eyeglass L44, the 11 eyeglass L45 are combined as the 4th gummed mirror; First lens combination G1 moves forward and backward, under realizing long-focus situation, ensure the consistance of far and near target imaging target position, second lens combination G2 and the 3rd lens combination G3 in zooming procedure with certain rule relative motion, the first mechanical variable interval D5 is had between the first described lens combination G1 and the second lens combination G2, the second mechanical variable interval D10 is had between second lens combination G2 and the 3rd lens combination G3, there is the second mechanical variable interval D15 to be mechanical variable interval between 3rd lens combination G3 and the 4th lens combination G4, ensure the consistance of lens imaging target position; When system becomes focal length from short Jiao, the second lens combination G2 and the 3rd lens combination G3, according to mobile in the middle of two side direction, reaches minimum distance during focal length position; Short burnt time the first mechanical variable interval (D5), the second mechanical variable interval (D15) the shortest, second mechanical variable interval (D10) is the longest, first mechanical variable interval (D5) during focal length, the second mechanical variable interval (D15) are the longest, and the second mechanical variable interval (D10) is the shortest.
In zoom lens provided by the present invention, optical signature is f=760mm, F=4.5-8.
The 5th lens combination G5 is had between the 4th described lens combination G4 and Simage (image planes), overall aberration after system incision is corrected, the radius-of-curvature of optimization filter glass, color difference eliminating, possesses fog penetrating function after ensureing its incision and image planes position does not change.
First lens combination (G1), the second lens combination (G2), the 3rd lens (G3), the 4th lens combination (G4) meet the condition of table one, table two.
The material of described first group of lens combination G1, second group of lens combination G2, three lens cluster G3, the 4th group of lens combination G4 is H-FK61, ZABAF20, LAF3, ZF4, ZK14, ZF11, K9, ZBAF8 or HWB850.
The optical transfer function curve map of Fig. 2-Fig. 4 short Jiao of optical system, middle Jiao, focal length for this reason.
Claims (4)
1. a fog penetration lens, is characterized in that: it comprises the first lens combination (G1), the second lens combination (G2), the 3rd lens (G3), the 4th lens combination (G4), described the first lens combination (G1) is the refracting set just organized, be made up of the first eyeglass (L11), the second eyeglass (L12) and the 3rd eyeglass (L13), the first eyeglass (L11) and the second eyeglass (L12) are combined as the first gummed mirror, described the second lens combination (G2) is the refracting set of negative group, be made up of the 4th eyeglass (L21), the 5th eyeglass (L22) and the 6th eyeglass (L23), the 5th eyeglass (L22) and the 6th eyeglass (L23) are combined as the second gummed mirror, the 3rd described lens combination (G3) is the refracting set just organized, be made up of the 7th eyeglass (L31), the 8th eyeglass (L32), the 9th eyeglass (L33), the 8th eyeglass (L32), the 9th eyeglass (L33) are combined as the 3rd gummed mirror, the 4th described lens combination (G4) is the refracting set just organized, be made up of the tenth eyeglass (L41), the 11 eyeglass (L42), the 12 eyeglass (L43), the 13 eyeglass (L44), the 14 eyeglass (L45), the tenth eyeglass (L44), the 11 eyeglass (L45) are combined as the 4th gummed mirror, first lens combination (G1) moves forward and backward, under realizing long-focus situation, ensure the consistance of far and near target imaging target position, second lens combination (G2) and the 3rd lens combination (G3) in zooming procedure with certain rule relative motion, the first mechanical variable interval (D5) is had between described the first lens combination (G1) and the second lens combination (G2), the second mechanical variable interval (D10) is had between second lens combination (G2) and the 3rd lens combination (G3), the second mechanical variable interval (D15) is had to be mechanical variable interval between 3rd lens combination (G3) and the 4th lens combination (G4), ensure the consistance of lens imaging target position, when system becomes focal length from short Jiao, the second lens combination (G2) and the 3rd lens combination (G3), according to mobile in the middle of two side direction, reach minimum distance during focal length position, short burnt time the first mechanical variable interval (D5), the second mechanical variable interval (D15) the shortest, second mechanical variable interval (D10) is the longest, first mechanical variable interval (D5) during focal length, the second mechanical variable interval (D15) are the longest, and the second mechanical variable interval (D10) is the shortest.
2. fog penetration lens according to claim 1, is characterized in that: in the zoom lens provided, optical signature is f=760mm, F=4.5-8.
3. fog penetration lens according to claim 1, it is characterized in that: between the 4th described lens combination (G4) and Simage, have the 5th lens combination (G5), overall aberration after system incision is corrected, optimize the radius-of-curvature of filter glass, color difference eliminating, possesses fog penetrating function after ensureing its incision and image planes position does not change.
4. fog penetration lens according to claim 1, is characterized in that: the material of described first group of lens combination (G1), second group of lens combination (G2), three lens cluster (G3), the 4th group of lens combination (G4) is H-FK61, ZABAF20, LAF3, ZF4, ZK14, ZF11, K9, ZBAF8 or HWB850.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544783.XA CN104238094A (en) | 2014-10-15 | 2014-10-15 | Fog penetration lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544783.XA CN104238094A (en) | 2014-10-15 | 2014-10-15 | Fog penetration lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104238094A true CN104238094A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410544783.XA Pending CN104238094A (en) | 2014-10-15 | 2014-10-15 | Fog penetration lens |
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| CN (1) | CN104238094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652415A (en) * | 2016-04-14 | 2016-06-08 | 南京昂驰光电科技有限公司 | Rear optical set for star-grade road monitoring zoom camera lens |
-
2014
- 2014-10-15 CN CN201410544783.XA patent/CN104238094A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652415A (en) * | 2016-04-14 | 2016-06-08 | 南京昂驰光电科技有限公司 | Rear optical set for star-grade road monitoring zoom camera lens |
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Application publication date: 20141224 |
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