CN110191273B - Double-light zooming shooting system - Google Patents
Double-light zooming shooting system Download PDFInfo
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- CN110191273B CN110191273B CN201910575788.1A CN201910575788A CN110191273B CN 110191273 B CN110191273 B CN 110191273B CN 201910575788 A CN201910575788 A CN 201910575788A CN 110191273 B CN110191273 B CN 110191273B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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Abstract
The invention discloses a double-light zooming shooting system, which comprises an optical lens group, an optical lens group II and a light splitting module, wherein the emitting direction of one light wave is provided with a first diaphragm, an optical lens group III, an optical lens group IV and a first photosensitive chip, and the emitting direction of the other light wave is provided with a second diaphragm, an optical lens group V, an optical lens group VI and a second photosensitive chip; the shooting system also comprises an image processing system which can integrate and output the light waves received by the first photosensitive chip and the second photosensitive chip. According to the invention, the light with different wavelengths is separated by the light splitting module, and then the light waves with different wavelength ranges are respectively received by the different photosensitive chips, so that each single photosensitive chip receives a light wave with a narrower wavelength range, the definition of the photosensitive chip is improved, and the definition of the whole picture finally formed by the shooting system is greatly improved.
Description
[ field of technology ]
The invention relates to a double-light zooming shooting system.
[ background Art ]
At present, the monitoring shooting system is widely applied to daily life of people. However, the existing security monitoring and road condition monitoring system has the following defects:
1. the existing shooting system adopts a mode that a single lens is matched with a single photosensitive chip, and the wavelength of light waves which need to be received by the single photosensitive chip is wider, so that the overall picture definition is not high, and the shot effect is not good;
2. the existing shooting system adopts a mode that a single lens is matched with a single photosensitive chip, reflects the fact that the wavelengths of all colors are not well restored on the single photosensitive chip, and therefore the phenomenon that the colors of shooting pictures are not full enough occurs;
3. the existing shooting system adopts a mode that a single lens is matched with a single photosensitive chip, and in a low-illumination environment, the wavelength of partial light waves cannot be utilized, so that the overall light quantity is reduced, and a shot image is unclear;
the present invention has been made to solve the above-mentioned problems, and an advantageous improvement is made.
[ invention ]
Aiming at the defects of the prior art, the invention provides a double-light zooming shooting system, which adopts a light splitting module, the light wave transmitted by an optical lens is split into a plurality of light waves with different wavelength ranges by the light splitting module, the light waves with different wavelength ranges are respectively received by different photosensitive chips, and finally, the light waves received by the different photosensitive chips are integrated and output by a graphic processing module, so that the high definition of a shot image is realized, the image color reducibility is good, and the image can be clearly imaged under low illumination.
In order to solve the technical problems, the invention provides the following technical scheme: the double-light zooming shooting system is characterized by comprising an optical lens group, an optical lens group II and a light splitting module capable of splitting light waves passing through the optical lens group II into two different ranges of wavelengths, wherein a first diaphragm, an optical lens group III, an optical lens group IV and a first photosensitive chip are arranged in the emitting direction of one light wave, and a second diaphragm, an optical lens group V, an optical lens group VI and a second photosensitive chip are arranged in the emitting direction of the other light wave; the shooting system also comprises an image processing system which can integrate and output the light waves received by the first photosensitive chip and the second photosensitive chip.
The dual-light zoom shooting system is characterized in that the light splitting module is at least one light splitting element.
The dual-optical zoom shooting system is characterized in that the optical lens group is a fixed lens group and comprises a first lens, wherein the focal power of the first lens is negative, a second lens, the focal power of the second lens is positive, the first lens and the second lens are adhesive lenses, the focal power of the third lens is positive, and the focal power of the fourth lens is positive.
The two-light zooming shooting system is characterized in that the second optical lens group is a moving lens group and comprises a fifth lens, wherein the fifth lens is an aspheric lens; a sixth lens, which is an aspherical lens; and a seventh lens, wherein the focal power of the seventh lens is positive.
The dual-light zoom shooting system is characterized in that the optical lens three groups are fixed lens groups and comprise an eighth lens, the eighth lens is an aspheric lens, a ninth lens, the optical power of the ninth lens is positive, the optical power of the tenth lens is positive, the ninth lens and the tenth lens are adhesive lenses, and the eleventh lens is an aspheric lens.
The two-light zooming shooting system is characterized in that the four optical lenses are moving lens groups and comprise a twelfth lens, the focal power of the twelve lenses is negative, a thirteenth lens, the focal power of the thirteenth lens is positive, a fourteenth lens is of a meniscus structure, and the twelfth lens and the thirteenth lens are adhesive lenses.
The optical lens five groups are fixed lens groups, and the optical lens five groups comprise a fifteenth lens, wherein the fifteenth lens is an aspheric lens, a sixteenth lens, the focal power of the sixteenth lens is positive, a seventeenth lens, the focal power of the seventeenth lens is negative, and the sixteenth lens and the seventeenth lens are bonded lenses.
The optical lens six groups are movable lens groups, and the optical lens six groups comprise an eighteenth lens, wherein the optical power of the eighteenth lens is positive, an nineteenth lens, the optical power of the nineteenth lens is negative, a twentieth lens is an aspheric lens, a twenty first lens and a twenty first lens are of a meniscus structure.
A binary optical zoom photographing system as described above, wherein the aspherical surface shape of the aspherical lens satisfies the following equation:
in the formula, the parameter c is the curvature corresponding to the radius, and y is the radial coordinate unit and the lens lengthThe units of the degrees are the same, and k is a conic coefficient; when the k coefficient is smaller than-1, the surface shape curve of the lens is a hyperbola, and when the k coefficient is equal to-1, the surface shape curve of the lens is a parabola; when the k coefficient is between-1 and 0, the surface shape curve of the lens is elliptical, when the k coefficient is equal to 0, the surface shape curve of the lens is circular, and when the k coefficient is greater than 0, the surface shape curve of the lens is oblate; a, a 1 To a 8 The coefficients corresponding to the radial coordinates are respectively represented.
Compared with the prior art, the double-light zooming shooting system has the following beneficial effects:
1. the invention separates light with different wavelengths by the light splitting module, so that the light waves output by the light splitting module are light waves with two different wavelength ranges, and the light waves with the two different wavelength ranges are respectively received by different photosensitive chips, so that each individual photosensitive chip receives a light wave with a narrower wavelength range, thereby improving the definition of the photosensitive chip and greatly improving the definition of the whole picture finally formed by the shooting system.
2. The invention separates light with different wavelengths by the light splitting module, so that the light waves output by the light splitting module are light waves with two different wavelength ranges, and the light waves with different wavelength ranges are respectively received by different photosensitive chips, therefore, the wavelength range of the whole light waves received by the two photosensitive chips after accumulation is wider, the wavelength reflecting each color can be fully utilized, and the color of the whole picture formed by the light waves received by the two photosensitive chips after accumulation is more true and plump.
3. The invention separates the light with different wavelengths by the light splitting module, so the light wave output from the light splitting module is two light waves with different wavelength ranges, and the light waves with different wavelength ranges are respectively received by different photosensitive chips, therefore, when the light intensity is low, the two photosensitive chips receiving the light waves with different wavelength ranges are accumulated together, the wavelength range of the light wave which can be utilized is widened, the integral light passing quantity is improved, and the imaging picture can be ensured to be clear when the light is dark.
[ description of the drawings ]
FIG. 1 is an optical schematic of the present invention.
[ detailed description ] of the invention
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, a dual-light zoom shooting system includes an optical lens group G1, an optical lens group G2, and a beam splitting module M7 capable of splitting light waves passing through the optical lens group G2 into two different ranges of wavelengths, wherein a first diaphragm 801, an optical lens group G3, an optical lens group G4 and a first photosensitive chip 901 are disposed in an emission direction of one light wave, and a second diaphragm 802, an optical lens group G5, an optical lens group G6 and a second photosensitive chip 902 are disposed in an emission direction of the other light wave; the shooting system further comprises an image processing system M10 which can integrate and output the light waves received by the first photosensitive chip 901 and the second photosensitive chip 902.
As shown in fig. 1, in the present embodiment, the optical splitting module M7 is at least one optical splitting element.
The light beam coming out of the optical lens group G1 and G2 is divided into two light waves with different wavelength ranges by the light splitting module M7 in a mode of matching the light splitting module M7 with the two light sensitive chips 901 and 902 which are used for receiving the light waves with different wavelength ranges, the light waves with specific wavelength ranges are respectively received by the different light sensitive chips 901 and 902 which are matched with the light splitting module M7, and finally, the image is restored and reproduced by the image processing module M10, so that the definition of an optical system is improved, the color reproducibility is improved, and the shooting system can also clearly image under a low-illumination environment.
As shown in fig. 1, in the present embodiment, the optical lens group G1 is a fixed lens group, and includes a first lens 101, a second lens 102, a third lens 103, a fourth lens 104, and a fourth lens 104.
As shown in fig. 1, in the present embodiment, the second group G2 of optical lenses is a moving lens group, including a fifth lens 201, and the fifth lens 201 is an aspheric lens; a sixth lens 202, the sixth lens 202 being an aspherical lens; the seventh lens 203, the optical power of the seventh lens 203 is positive.
As shown in fig. 1, in the present embodiment, the optical lens group G3 is a fixed lens group, and includes an eighth lens 301, the eighth lens 301 is an aspheric lens, a ninth lens 302, an optical power of the ninth lens 302 is positive, a tenth lens 303, an optical power of the tenth lens 303 is positive, the ninth lens 302 and the tenth lens 303 are cemented lenses, an eleventh lens 304, and the eleventh lens 304 are aspheric lenses.
As shown in fig. 1, in the present embodiment, the fourth group G4 of optical lenses is a moving lens group, and includes a twelfth lens 401, the optical power of the twelfth lens 401 is negative, a thirteenth lens 402, the optical power of the thirteenth lens 402 is positive, a fourteenth lens 403, the fourteenth lens 403 is a meniscus structure, and the twelfth lens 401 and the thirteenth lens 402 are cemented lenses.
As shown in fig. 1, in the present embodiment, the fifth group G5 of optical lenses is a fixed lens group, and includes a fifteenth lens 501, the fifteenth lens 501 is an aspheric lens, the sixteenth lens 502, the focal power of the sixteenth lens 502 is positive, the seventeenth lens 503, the focal power of the seventeenth lens 503 is negative, and the sixteenth lens 502 and the seventeenth lens 503 are cemented lenses.
As shown in fig. 1, in the present embodiment, the sixth group G6 of optical lenses is a moving lens group, and includes an eighteenth lens 601, an optical power of the eighteenth lens 601 is positive, an optical power of the nineteenth lens 602 is negative, a twentieth lens 603 is an aspheric lens, a twenty-first lens 604, and the twenty-first lens 604 is a meniscus structure.
As shown in fig. 1, in the present embodiment, the aspherical surface shape of the aspherical lens satisfies the following equation:
in the formula, the parameter c is the curvature corresponding to the radius, y is the radial coordinate, the unit of the radial coordinate is the same as the unit of the lens length, and k is the conic coefficient; when the k coefficient is smaller than-1, the surface shape curve of the lens is a hyperbola, and when the k coefficient is equal to-1, the surface shape curve of the lens is a parabola; when the k coefficient is between-1 and 0, the surface shape curve of the lens is elliptical, when the k coefficient is equal to 0, the surface shape curve of the lens is circular, and when the k coefficient is greater than 0, the surface shape curve of the lens is oblate; a, a 1 To a 8 The coefficients corresponding to the radial coordinates are respectively represented.
The following is an actual design case, in which the light splitting element is coated with plate glass;
| α2 | α4 | α6 | α8 | α10 | |
| 8 | 0 | -1.76E-05 | -1.96E-07 | -1.57E-10 | 9.79E-12 |
| 9 | 0 | -2.84E-05 | -8.75E-07 | -6.02E-09 | -1.21E-10 |
| 10 | 0 | -1.53E-04 | 2.34E-06 | -1.59E-08 | 3.74E-10 |
| 11 | 0 | -2.25E-04 | 1.98E-06 | 1.77E-08 | -9.54E-10 |
| 15 | 0 | 8.716E-05 | -1.004E-07 | 1.344E-09 | 4.791E-12 |
| 16 | 0 | 4.308E-05 | 6.281E-08 | 7.980E-10 | 4.612E-12 |
| 21 | 0 | -1.5303E-04 | 9.54E-06 | -2.36E-07 | 4.17E-10 |
| 22 | 0 | -2.2458E-04 | 1.38E-05 | -2.16E-07 | 8.57E-10 |
| 31 | 0 | -2.43E-05 | -5.29E-08 | 2.40E-10 | -4.90E-12 |
| 32 | 0 | -2.55E-05 | 2.03E-07 | -1.29E-09 | 6.87E-12 |
| 41 | 0 | -1.18E-04 | 1.74E-07 | -2.71E-08 | 6.58E-10 |
| 42 | 0 | 3.17E-05 | 5.34E-07 | -3.12E-08 | 8.51E-10 |
group zoom, focus movement range:
the interval between the optical lens group and the optical lens group is 41mm;
the interval between the second group of optical lenses and the third group of optical lenses is 75mm;
the distance between the optical lens three groups and the optical lens four groups is 7.5mm;
the distance between the four groups of optical lenses and the image plane is 14.5mm;
the distance between the five groups of optical lenses and the six groups of optical lenses is 9mm;
the distance between six groups of optical lenses and the image plane is 15mm.
Claims (3)
1. The double-light zooming shooting system is characterized by comprising an optical lens group (G1), an optical lens group II (G2) and a light splitting module (M7) capable of splitting light waves passing through the optical lens group II (G2) into two different ranges of wavelengths, wherein a first diaphragm (801), an optical lens group III (G3), an optical lens group IV (G4) and a first photosensitive chip (901) are arranged in the emitting direction of one light wave, and a second diaphragm (802), an optical lens group V (G5), an optical lens group VI (G6) and a second photosensitive chip (902) are arranged in the emitting direction of the other light wave; the shooting system also comprises an image processing system (M10) which can integrate and output the light waves received by the first photosensitive chip (901) and the second photosensitive chip (902);
the optical lens group (G1) is a fixed lens group and comprises a first lens (101), wherein the focal power of the first lens (101) is negative, a second lens (102), the focal power of the second lens (102) is positive, the first lens (101) and the second lens (102) are adhesive lenses, the third lens (103) has positive focal power, the fourth lens (104) has positive focal power, and the fourth lens (104) has positive focal power;
the optical lens group II (G2) is a movable lens group and comprises a fifth lens (201), wherein the fifth lens (201) is an aspheric lens; a sixth lens (202), the sixth lens (202) being an aspherical lens; a seventh lens (203), the focal power of the seventh lens (203) being positive;
the optical lens three group (G3) is a fixed lens group and comprises an eighth lens (301), wherein the eighth lens (301) is an aspheric lens, a ninth lens (302), the focal power of the ninth lens (302) is positive, a tenth lens (303), the focal power of the tenth lens (303) is positive, the ninth lens (302) and the tenth lens (303) are adhesive lenses, an eleventh lens (304) is an aspheric lens;
the fourth group (G4) of optical lenses is a movable lens group and comprises a twelfth lens (401), wherein the optical power of the twelfth lens (401) is negative, a thirteenth lens (402), the optical power of the thirteenth lens (402) is positive, a fourteenth lens (403), the fourteenth lens (403) is of a meniscus structure, and the twelfth lens (401) and the thirteenth lens (402) are adhesive lenses;
the fifth group (G5) of the optical lens is a fixed lens group and comprises a fifteenth lens (501), wherein the fifteenth lens (501) is an aspheric lens, the sixteenth lens (502), the focal power of the sixteenth lens (502) is positive, the seventeenth lens (503), the focal power of the seventeenth lens (503) is negative, and the sixteenth lens (502) and the seventeenth lens (503) are adhesive lenses;
the optical lens six group (G6) is a movable lens group and comprises an eighteenth lens (601), wherein the focal power of the eighteenth lens (601) is positive, a nineteenth lens (602), the focal power of the nineteenth lens (602) is negative, a twentieth lens (603) is an aspheric lens, a twenty first lens (604) is an aspheric lens, and the twenty first lens (604) is of a meniscus structure.
2. A binary zoom photographing system according to claim 1, wherein the beam splitting module (M7) is at least one beam splitting element.
3. The system of claim 1, wherein the aspherical surface shape of the aspherical lens satisfies the following equation:
in the formula, the parameter c is the curvature corresponding to the radius, y is the radial coordinate, the unit of the radial coordinate is the same as the unit of the lens length, and k is the conic coefficient; when the k coefficient is smaller than-1, the surface shape curve of the lens is a hyperbola, and when the k coefficient is equal to-1, the surface shape curve of the lens is a parabola; when the k coefficient is between-1 and 0, the surface shape curve of the lens is elliptical, when the k coefficient is equal to 0, the surface shape curve of the lens is circular, and when the k coefficient is greater than 0, the surface shape curve of the lens is oblate; a, a 1 To a 8 The coefficients corresponding to the radial coordinates are respectively represented.
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| CN114650410B (en) * | 2020-12-18 | 2024-05-28 | 余姚舜宇智能光学技术有限公司 | Active calibration method and system for multi-band multi-pass camera module |
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| JP6189736B2 (en) * | 2013-12-18 | 2017-08-30 | 富士フイルム株式会社 | Imaging lens and imaging apparatus |
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