KR100857884B1 - Double magnification lens system and photographing device for shooting low-light objects - Google Patents

Abstract

The present invention relates to a double magnification lens system and a photographing apparatus for photographing a low light quantity object, and more particularly, a low magnification object photographing magnification capable of smoothly photographing a low light quantity object in the visible region using a double magnification lens system having an F number of 1,2. It relates to a lens system and an imaging device.

The lens system having an F number of 1 according to an embodiment of the present invention includes a plurality of lenses, and the first biconvex lens, the first meniscus lens, the first biscuit lens, and the second meniscus lens are sequentially from the observation object. And a third meniscus lens, a second biconvex lens, a third biconvex lens, a fourth biconvex lens, a fifth biconvex lens, and a second biconvex lens.

In addition, the lens system having an F number of 2 according to an embodiment of the present invention further includes a plurality of lenses in the front portion of the lens system having an F number of 1, and the third diorama lens and the fourth meniscus sequentially from the observation object. A lens, a fifth meniscus lens, a sixth meniscus lens, a seventh meniscus lens, and a fourth amphipathic lens.

Description

Double magnification lens system and photographing device for low-light object shooting {PHOTOGRAPHING BOTH MAGNIFICATION RATIO LENS AND CAMERA FOR LOW INTENSITY OBJECT}

1 is a view showing a lens system according to an embodiment of the present invention;

2 is a view showing a lens system according to another embodiment of the present invention.

In the drawings according to the present invention, the same reference numerals are used for components having substantially the same configuration and function.

<Description of the symbols for the main parts of the drawings>

100: first lens system 200: second lens system

300: image sensor 101: first biconvex lens

102: the first meniscus lens 103: the first binocular lens

104: second meniscus lens 105: third meniscus lens

106: second biconvex lens 107: third biconvex lens

108: fourth biconvex lens 109: fifth biconvex lens

110: the second binocular lens 201: the third binocular lens

202: fourth meniscus lens 203: fifth meniscus lens

204: sixth meniscus lens 205: seventh meniscus lens

206: the fourth binocular lens

The present invention relates to a double magnification lens system and a photographing apparatus for photographing a low light quantity object, and more particularly, a low magnification object photographing magnification capable of smoothly photographing a low light quantity object in the visible region using a double magnification lens system having an F number of 1,2. It relates to a lens system and an imaging device.

In general, there are many types of lenses in the camera lens, such as telephoto lens, wide-angle lens, these lenses are also distinguished from each other by the number of F.

In addition, the F number is a numerical value that determines the brightness of the camera and is expressed as the ratio (f / d) of the diameter R of the aperture that determines the amount of light incident on the lens system and the focal length f of the lens system. It is called a lens system.

Among the conventional camera lens systems, the F lens of the camera lens system is not common, and the F lens of 1.25 is used as the brightest lens system.

In addition, in the case of a camera lens system having an F number of 2 or more, optical correction is easy and easy to manufacture at the time of design, but the brightness is low. Therefore, the exposure time of the shutter is extended when shooting low-light objects such as biophotons in living organisms. And even using a cooling CCD (Charge Coupled Device) there was a problem that it is difficult to obtain the required image.

In addition, when the optical system is configured with a single magnification, an object may be photographed with only one magnification, and thus there is a problem in that a camera lens system having a different magnification should be used to enlarge the magnification of the object.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a lens system having an F number of 1 for effectively photographing a low light quantity object.

It is also an object of the present invention to provide a lens system capable of photographing a low light quantity object at one or two times the magnification.

The lens system of the present invention for achieving the above object is a lens system consisting of a plurality of lenses, the lens system comprises a first lens system, the first lens system is a first biconvex lens, a first me A varnish lens, a first biconvex lens, a second meniscus lens, a third meniscus lens, a second biconvex lens, a third biconvex lens, a fourth biconvex lens, a fifth biconvex lens and a second biconvex lens Includes a diorama lens.

In a preferred embodiment, each of the lenses satisfies the table below.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) First biconvex lens C1 = 370.4 C2 = -189.3 T1 = 20.4 R1 = 81 SLAL10 (1.719,50.2) 1st meniscus lens C3 = -70.1 C4 = -73.3 T2 = 16.6 R2 = 53 SBSM14 (1.603,60.6) 1st calico lens C5 = -31.6 C6 = 21.8 T3 = 8.5 R3 = 35 STIM25 (1.672,32.1) 2nd meniscus lens C7 = 21.8 C8 = 47.7 T4 = 10.1 R4 = 35 STUH1 (1.717,29.5) 3rd meniscus lens C9 = 144.2 C10 = 40.7 T5 = 7.2 R5 = 47 STUH1 (1.717,29.5) 2nd biconvex lens C11 = 40.7 C12 = -70.8 T6 = 15.2 R6 = 47 SBSM2 (1.607,56.8) 3rd biconvex lens C13 = 100.5 C14 = -130.4 T7 = 20.6 R7 = 60 SLAL14 (1.696,55.5) 4th biconvex lens C15 = 102.9 C16 = -102.4 T8 = 24.6 R8 = 61 SLAL10 (1.719,50.2) 5th biconvex lens C17 = 43.07 C18 = -31.4 T9 = 25.7 R9 = 48 SBSM16 (1.620,60.3) 2nd bifocal lens C19 = -31.4 C20 = 44.3 T10 = 3.6 R10 = 48 STUH1 (1.717,29.5)

In a preferred embodiment, the lenses are spaced apart from each other by satisfying the table below.

Distance between lenses (mm) First biconvex lens ~ first meniscus lens D1 = 30.0 1st meniscus lens ~ 1st diorama lens D2 = 30.0 1st diodic lens ~ 2nd meniscus lens D3 = 0 Second Meniscus Lens to Third Meniscus Lens D4 = 3.9 Third Meniscus Lens to Second Convex Lens D5 = 0 2nd biconvex lens ~ 3rd biconvex lens D6 = 0.5 3rd biconvex lens ~ 4th biconvex lens D7 = 1.5 4th biconvex lens ~ 5th biconvex lens D8 = 0.5 5th biconvex lens ~ 2nd biconvex lens D9 = 0

In a preferred embodiment, it comprises a stop provided between the second meniscus lens and the third meniscus lens and for controlling the amount of incident light.

In a preferred embodiment, the diameter of the stop is provided to be 38.8mm.

In a preferred embodiment, the lens system includes a second lens system provided in the front portion of the first lens system, the second lens system is a third diorama lens, a fourth meniscus lens, a first lens A fifth meniscus lens, a sixth meniscus lens, a seventh meniscus lens, and a fourth calico lens.

In a preferred embodiment, each of the lenses satisfies the table below.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) Third calico lens C21 = -133.2 C22 = 321.6 T11 = 8.6 R11 = 107.9 STUH1 (1.717,29.5) 4th meniscus lens C23 = -1090.7 C24 = -138.1 T12 = 25.6 R12 = 158.8 SLAL10 (1.719,50.2) 5th meniscus lens C25 = 228.5 C26 = 182.2 T13 = 20.1 R13 = 155.0 STUH1 (1.717,29.5) 6th meniscus lens C27 = 121.9 C28 = 2092.9 T14 = 30.6 R14 = 148.7 SLAL14 (1.696,55.5) 7th meniscus lens C29 = 107.2 C30 = 197.5 T15 = 12.0 R15 = 119.9 SLAL10 (1.719,50.2) Fourth Amphora Lens C31 = -1772.6 C32 = 73.6 T16 = 19.9 R16 = 105.6 STUH1 (1.717,29.5)

In a preferred embodiment, the lenses are spaced apart from each other by satisfying the table below.

Distance between lenses (mm) 3rd calico lens ~ 4th meniscus lens D10 = 66.6 4th meniscus lens to 5th meniscus lens D11 = 23.8 5th Meniscus Lens ~ 6th Meniscus Lens D12 = 10.1 6th Meniscus Lens ~ 7th Meniscus Lens D13 = 8.9 7th meniscus lens ~ 4th diorama lens D14 = 16.9 4th biconvex lens ~ 1st biconvex lens D15 = 14.6

According to an embodiment of the present invention, a photographing apparatus includes a lens system including a plurality of lenses arranged on an optical axis, a housing for accommodating the lens system, and an image sensor for obtaining an image incident through the lens system. The lens system may include a first biconvex lens, a first meniscus lens, a first biscuit lens, a second meniscus lens, a third meniscus lens, and a second biconvex lens sequentially from an observation object. And a third biconvex lens, a fourth biconvex lens, a fifth biconvex lens, and a second biconvex lens, the lenses satisfy the table below.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) First biconvex lens C1 = 370.4 C2 = -189.3 T1 = 20.4 R1 = 81 SLAL10 (1.719,50.2) 1st meniscus lens C3 = -70.1 C4 = -73.3 T2 = 16.6 R2 = 53 SBSM14 (1.603,60.6) 1st calico lens C5 = -31.6 C6 = 21.8 T3 = 8.5 R3 = 35 STIM25 (1.672,32.1) 2nd meniscus lens C7 = 21.8 C8 = 47.7 T4 = 10.1 R4 = 35 STUH1 (1.717,29.5) 3rd meniscus lens C9 = 144.2 C10 = 40.7 T5 = 7.2 R5 = 47 STUH1 (1.717,29.5) 2nd biconvex lens C11 = 40.7 C12 = -70.8 T6 = 15.2 R6 = 47 SBSM2 (1.607,56.8) 3rd biconvex lens C13 = 100.5 C14 = -130.4 T7 = 20.6 R7 = 60 SLAL14 (1.696,55.5) 4th biconvex lens C15 = 102.9 C16 = -102.4 T8 = 24.6 R8 = 61 SLAL10 (1.719,50.2) 5th biconvex lens C17 = 43.07 C18 = -31.4 T9 = 25.7 R9 = 48 SBSM16 (1.620,60.3) 2nd bifocal lens C19 = -31.4 C20 = 44.3 T10 = 3.6 R10 = 48 STUH1 (1.717,29.5)

According to another aspect of the present invention, there is provided a photographing apparatus including a lens system including a plurality of lenses arranged on an optical axis, a housing accommodating the lens system, and an image for obtaining an image incident through the lens system. A sensor, wherein the lens system comprises a third amphipathic lens, a fourth meniscus lens, a fifth meniscus lens, a sixth meniscus lens, a seventh meniscus lens, and a fourth quantity Concave lens, first biconvex lens, first meniscus lens, first biscuit lens, second meniscus lens, third meniscus lens, second biconvex lens, third biconvex lens, fourth A biconvex lens, a fifth biconvex lens and a second biconvex lens are included and the lenses satisfy the table below.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) Third calico lens C21 = -133.2 C22 = 321.6 T11 = 8.6 R11 = 107.9 STUH1 (1.717,29.5) 4th meniscus lens C23 = -1090.7 C24 = -138.1 T12 = 25.6 R12 = 158.8 SLAL10 (1.719,50.2) 5th meniscus lens C25 = 228.5 C26 = 182.2 T13 = 20.1 R13 = 155.0 STUH1 (1.717,29.5) 6th meniscus lens C27 = 121.9 C28 = 2092.9 T14 = 30.6 R14 = 148.7 SLAL14 (1.696,55.5) 7th meniscus lens C29 = 107.2 C30 = 197.5 T15 = 12.0 R15 = 119.9 SLAL10 (1.719,50.2) Fourth Amphora Lens C31 = -1772.6 C32 = 73.6 T16 = 19.9 R16 = 105.6 STUH1 (1.717,29.5) First biconvex lens C1 = 370.4 C2 = -189.3 T1 = 20.4 R1 = 81 SLAL10 (1.719,50.2) 1st meniscus lens C3 = -70.1 C4 = -73.3 T2 = 16.6 R2 = 53 SBSM14 (1.603,60.6) 1st calico lens C5 = -31.6 C6 = 21.8 T3 = 8.5 R3 = 35 STIM25 (1.672,32.1) 2nd meniscus lens C7 = 21.8 C8 = 47.7 T4 = 10.1 R4 = 35 STUH1 (1.717,29.5) 3rd meniscus lens C9 = 144.2 C10 = 40.7 T5 = 7.2 R5 = 47 STUH1 (1.717,29.5) 2nd biconvex lens C11 = 40.7 C12 = -70.8 T6 = 15.2 R6 = 47 SBSM2 (1.607,56.8) 3rd biconvex lens C13 = 100.5 C14 = -130.4 T7 = 20.6 R7 = 60 SLAL14 (1.696,55.5) 4th biconvex lens C15 = 102.9 C16 = -102.4 T8 = 24.6 R8 = 61 SLAL10 (1.719,50.2) 5th biconvex lens C17 = 43.07 C18 = -31.4 T9 = 25.7 R9 = 48 SBSM16 (1.620,60.3) 2nd bifocal lens C19 = -31.4 C20 = 44.3 T10 = 3.6 R10 = 48 STUH1 (1.717,29.5)

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view showing a lens system according to an embodiment of the present invention.

Referring to FIG. 1, a lens system according to an exemplary embodiment of the present invention includes a first lens system 100 having an F number of 1 and a magnification of 1. In addition, the first lens system 100 may include a first biconvex lens 101, a first meniscus lens 102, a first bismuth lens 103, a second meniscus lens 104, and a second lens. 3 meniscus lens 105, second biconvex lens 106, third biconvex lens 107, fourth biconvex lens 108, fifth biconvex lens 109 and second biconvex The lenses are listed sequentially.

In addition, the curvature radius (C), thickness (T), diameter (R) and materials of the lenses of the first lens system 100 satisfy the following table.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) First biconvex lens C1 = 370.4 C2 = -189.3 T1 = 20.4 R1 = 81 SLAL10 (1.719,50.2) 1st meniscus lens C3 = -70.1 C4 = -73.3 T2 = 16.6 R2 = 53 SBSM14 (1.603,60.6) 1st calico lens C5 = -31.6 C6 = 21.8 T3 = 8.5 R3 = 35 STIM25 (1.672,32.1) 2nd meniscus lens C7 = 21.8 C8 = 47.7 T4 = 10.1 R4 = 35 STUH1 (1.717,29.5) 3rd meniscus lens C9 = 144.2 C10 = 40.7 T5 = 7.2 R5 = 47 STUH1 (1.717,29.5) 2nd biconvex lens C11 = 40.7 C12 = -70.8 T6 = 15.2 R6 = 47 SBSM2 (1.607,56.8) 3rd biconvex lens C13 = 100.5 C14 = -130.4 T7 = 20.6 R7 = 60 SLAL14 (1.696,55.5) 4th biconvex lens C15 = 102.9 C16 = -102.4 T8 = 24.6 R8 = 61 SLAL10 (1.719,50.2) 5th biconvex lens C17 = 43.07 C18 = -31.4 T9 = 25.7 R9 = 48 SBSM16 (1.620,60.3) 2nd bifocal lens C19 = -31.4 C20 = 44.3 T10 = 3.6 R10 = 48 STUH1 (1.717,29.5)

Further, among the curvature radii C, Ci (i = 1,3,5,7,9,11,13,15,17,19) represents the radius of curvature of the light incident surface of the lens and Cj (j = 2,4 , 6, 8, 10, 12, 14, 16, 18, and 20 represent the radius of curvature of the light exit surface of the lens.

In addition, the first lens system 100 is accommodated in a housing (not shown) and adjusts the amount of light incident on the lens system between the second meniscus lens 104 and the third meniscus lens 105. The imaging device 300 is provided with an aperture stop 400 and an image sensor 300 for acquiring light emitted from the second biconvex lens 110.

In addition, the image sensor 300 is provided with a cooling charge coupled device (CCD) capable of effectively obtaining a low amount of light. However, it may be provided as a general CCD or a complementary metal-oxide semiconductor (CMOS).

Therefore, the noise such as the dark current of the CCD itself generated by the ambient temperature can be minimized.

In addition, preferably the diameter of the aperture 400 is provided with 38.8mm. However, the diameter of the diaphragm 400 is sufficient to pass all the light emitted from the second meniscus lens 104 when the diaphragm 400 is opened to the maximum.

In addition, the housing (not shown) includes a gap maintaining means (not shown) that can position the lenses of the first lens system 100 at a constant distance as shown in the table below. In addition, the gap maintaining means (not shown) may be provided as, for example, a bracket. In addition, the inside of the housing (not shown) is preferably sealed and filled with gas so that light passing through the lens system can pass therethrough.

Distance between lenses (mm) First biconvex lens ~ first meniscus lens D1 = 30.0 1st meniscus lens ~ 1st diorama lens D2 = 30.0 1st diodic lens ~ 2nd meniscus lens D3 = 0 Second Meniscus Lens to Third Meniscus Lens D4 = 3.9 Third Meniscus Lens to Second Convex Lens D5 = 0 2nd biconvex lens ~ 3rd biconvex lens D6 = 0.5 3rd biconvex lens ~ 4th biconvex lens D7 = 1.5 4th biconvex lens ~ 5th biconvex lens D8 = 0.5 5th biconvex lens ~ 2nd biconvex lens D9 = 0

That is, light that transmits, reflects, or emits light from an object is incident to the first biconvex lens 101, and the light sequentially passes through the lenses and exits from the second biconvex lens 110. The light is captured by the image sensor 300 and digitally imaged.

In addition, the first lens system 100 has the same focal length and diaphragm diameter, so that the number of F is 1 and the magnification is 1.

Therefore, light of a low amount of light such as a bio biophoton may be effectively obtained using the first lens system 100.

2 is a view showing a lens system according to another embodiment of the present invention.

The lens system according to another exemplary embodiment of the present invention is formed by coupling the second lens system 200 to the front surface of the first lens system 100.

Hereinafter, descriptions of the same components as those in FIG. 1 will be omitted.

The second lens system 200 sequentially processes the third biconvex lens 201, the fourth meniscus lens 202, the fifth meniscus lens 203, and the sixth meniscus lens 204 from the observation object. ), A seventh meniscus lens 205 and a fourth diorama lens 206.

In addition, the curvature radius (C), thickness (T), diameter (R) and materials of the lenses of the second lens system 200 satisfy the following table.

Bending Radius (mm) Thickness (mm) Diameter (mm) Material (refractive index, dispersion coefficient) Third calico lens C21 = -133.2 C22 = 321.6 T11 = 8.6 R11 = 107.9 STUH1 (1.717,29.5) 4th meniscus lens C23 = -1090.7 C24 = -138.1 T12 = 25.6 R12 = 158.8 SLAL10 (1.719,50.2) 5th meniscus lens C25 = 228.5 C26 = 182.2 T13 = 20.1 R13 = 155.0 STUH1 (1.717,29.5) 6th meniscus lens C27 = 121.9 C28 = 2092.9 T14 = 30.6 R14 = 148.7 SLAL14 (1.696,55.5) 7th meniscus lens C29 = 107.2 C30 = 197.5 T15 = 12.0 R15 = 119.9 SLAL10 (1.719,50.2) Fourth Amphora Lens C31 = -1772.6 C32 = 73.6 T16 = 19.9 R16 = 105.6 STUH1 (1.717,29.5)

Further, among the curvature radii C, Ci (i = 21, 23, 25, 27, 29, 31) represents the radius of curvature of the light incident surface of the lens, and Cj (j = 22, 24, 26, 28, 30, 32 shows the radius of curvature of the light exit surface of the lens.

In addition, the second lens system 200 is accommodated in a housing (not shown) and the housing accommodating the second lens system 200 is coupled with a housing accommodating the first lens system 100.

Preferably, the optical axis of the second lens system 200 and the optical axis of the first lens system 100 are carefully coupled to each other.

In addition, the second lens system 200 is accommodated in the housing while maintaining a constant distance from each other while satisfying the following table.

Distance between lenses (mm) 3rd calico lens ~ 4th meniscus lens D10 = 66.6 4th meniscus lens to 5th meniscus lens D11 = 23.8 5th Meniscus Lens ~ 6th Meniscus Lens D12 = 10.1 6th Meniscus Lens ~ 7th Meniscus Lens D13 = 8.9 7th meniscus lens ~ 4th diorama lens D14 = 16.9 4th biconvex lens ~ 1st biconvex lens D15 = 14.6

That is, after light sequentially passes through the second lens system 200 and passes through the first lens system 100, an image is acquired by the image sensor 300.

Accordingly, by combining the second lens system with the first lens system 100, a lens system having a F number of 2 and a magnification of 2 may be manufactured.

In the above, the configuration and operation of the present invention has been shown in accordance with the above description and drawings, but this is merely described, for example, and various changes and modifications are possible without departing from the spirit and scope of the present invention. .

As described above, according to the present invention, it is possible to provide a first lens system having an F number of 1 and an imaging device including the first lens system for effectively capturing a low light quantity object such as a bio photon that emits light within itself. have.

In addition, by combining the second lens system with the first lens system has an effect that can provide a lens system having a F number of 2 and a magnification of 2.

In addition, the lens system can perform a 1x magnification photographing using a first lens system or a 2x magnification photographing by combining a second lens system with the first lens system, thereby providing a double magnification lens system.

Claims (18)

In the lens system consisting of a plurality of lenses, The lens system includes a first lens system, The first lens system is sequentially from the observation object A first biconvex lens; A first meniscus lens; A first calico lens; A second meniscus lens; A third meniscus lens; A second biconvex lens; Third biconvex lens; A fourth biconvex lens; A fifth biconvex lens; And A lens system comprising a second bilateral lens, wherein the number of F in the lens system is one. The method of claim 1, The first biconvex lens has a radius of curvature of 370.4 mm and -189.3 mm, a thickness of 20.4 mm, a diameter of 81 mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The first meniscus lens has a radius of curvature of -70.1 mm and -73.3 mm, a thickness of 16.6 mm, a diameter of 53 mm, and a material (refractive index and dispersion coefficient) of SBSM14 (1.603, 60.6) from the observation object side, respectively. Is, The first biconvex lens has a radius of curvature of -31.6mm and 21.8mm, a thickness of 8.5mm, a diameter of 35mm, and a material (refractive index and dispersion coefficient) of STIM25 (1.672,32.1), respectively. The second meniscus lens has a curvature radius of 21.8 mm and 47.7 mm, respectively, from the observation object side, a thickness of 10.1 mm, a diameter of 35 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), The third meniscus lens has a radius of curvature of 144.2 mm and 40.7 mm, a thickness of 7.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. The second biconvex lens has a curvature radius of 40.7 mm and -70.8 mm from the observation object side, a thickness of 15.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of SBSM2 (1.607, 56.8), The third biconvex lens has a radius of curvature of 100.5 mm and -130.4 mm from the observation object side, a thickness of 20.6 mm, a diameter of 60 mm, and a material (refractive index and dispersion coefficient) of SLAL14 (1.696, 55.5), The fourth biconvex lens has a radius of curvature of 102.9mm and -102.4mm, a thickness of 24.6mm, a diameter of 61mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The fifth biconvex lens has a radius of curvature of 43.07mm and -31.4mm, a thickness of 25.7mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of SBSM16 (1.620, 60.3), respectively. The second biconvex lens has a radius of curvature of -31.4mm and 44.3mm, a thickness of 3.6mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. The lens system characterized by the above. The method according to claim 1 or 2, The distance between the first biconvex lens and the first meniscus lens is 30.0mm, The distance between the first meniscus lens and the first biconvex lens is 30.0mm, The distance between the first biconvex lens and the second meniscus lens is 0.0mm, The distance between the second meniscus lens and the third meniscus lens is 3.9mm, The distance between the third meniscus lens and the second biconvex lens is 0.0mm, The distance between the second biconvex lens and the third biconvex lens is 0.5mm, The distance between the third biconvex lens and the fourth biconvex lens is 1.5mm, The distance between the fourth biconvex lens and the fifth biconvex lens is 0.5mm, And the distance between the fifth biconvex lens and the second biconvex lens is 0.0 mm. The method of claim 3, wherein And a diaphragm provided between the second meniscus lens and the third meniscus lens to adjust an amount of incident light. The method of claim 4, wherein The diameter of the aperture is 38.8mm lens system. The method according to claim 1 or 2, The lens system includes a second lens system provided in the front portion of the first lens system, the second lens system is sequentially from the observation object A third calico lens; A fourth meniscus lens; A fifth meniscus lens; A sixth meniscus lens; Seventh meniscus lens; And A lens system comprising a fourth bilateral lens, wherein the number of F in the lens system is two. The method of claim 6, The third concave lens has a radius of curvature of -133.2mm and 321.6mm, a thickness of 8.6mm, a diameter of 107.9mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5) from the observation object side, respectively. , The fourth meniscus lens has a radius of curvature of -1090.7mm and -138.1mm, a thickness of 25.6mm, a diameter of 158.8mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2) from the observation object side, respectively. ), The fifth meniscus lens has a radius of curvature of 228.5 mm and 182.2 mm from the observation object side, a thickness of 20.1 mm, a diameter of 155.0 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5). , The sixth meniscus lens has a radius of curvature of 121.9mm and 2092.9mm, a thickness of 30.6mm, a diameter of 148.7mm, and a material (refractive index and dispersion coefficient) of SLAL14 (1.696,55.5) from the observation object side, respectively. , The seventh meniscus lens has a radius of curvature of 107.2 mm and 197.5 mm from the observation object side, a thickness of 12.0 mm, a diameter of 119.9 mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2). , The fourth biconvex lens has a radius of curvature of -1772.6 mm and 73.6 mm from the observation object side, a thickness of 19.9 mm, a diameter of 105.6 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5). The lens system characterized by the above-mentioned. The method of claim 7, wherein The distance between the third concave lens and the fourth meniscus lens is 66.6 mm, The distance between the fourth meniscus lens and the fifth meniscus lens is 23.8mm, The distance between the fifth meniscus lens and the sixth meniscus lens is 10.1mm, The distance between the sixth meniscus lens and the seventh meniscus lens is 8.9 mm, The distance between the seventh meniscus lens and the fourth biconvex lens is 16.9 mm, The lens system according to claim 4, wherein the distance between the fourth biconvex lens and the first biconvex lens is 14.6 mm. A lens system comprising a plurality of lenses arranged on an optical axis; A housing accommodating the lens system; And An image sensor for obtaining an image incident through the lens system, The lens system is sequentially from the observation object A first biconvex lens; A first meniscus lens; A first calico lens; A second meniscus lens; A third meniscus lens; A second biconvex lens; Third biconvex lens; A fourth biconvex lens; A fifth biconvex lens; And And a second biconcave lens, wherein the number F of the lens system is one. A lens system comprising a plurality of lenses arranged on an optical axis; A housing accommodating the lens system; And An image sensor for obtaining an image incident through the lens system, The lens system is sequentially from the observation object A third calico lens; A fourth meniscus lens; A fifth meniscus lens; A sixth meniscus lens; Seventh meniscus lens; A fourth diodic lens; A first biconvex lens; A first meniscus lens; A first calico lens; A second meniscus lens; A third meniscus lens; A second biconvex lens; Third biconvex lens; A fourth biconvex lens; A fifth biconvex lens; And And a second biconcave lens, wherein the number of F of the lens system is two. The method of claim 9, The first biconvex lens has a radius of curvature of 370.4 mm and -189.3 mm, a thickness of 20.4 mm, a diameter of 81 mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The first meniscus lens has a radius of curvature of -70.1 mm and -73.3 mm, a thickness of 16.6 mm, a diameter of 53 mm, and a material (refractive index and dispersion coefficient) of SBSM14 (1.603, 60.6) from the observation object side, respectively. Is, The first biconvex lens has a radius of curvature of -31.6mm and 21.8mm, a thickness of 8.5mm, a diameter of 35mm, and a material (refractive index and dispersion coefficient) of STIM25 (1.672,32.1), respectively. The second meniscus lens has a curvature radius of 21.8 mm and 47.7 mm, respectively, from the observation object side, a thickness of 10.1 mm, a diameter of 35 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), The third meniscus lens has a radius of curvature of 144.2 mm and 40.7 mm, a thickness of 7.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. The second biconvex lens has a curvature radius of 40.7 mm and -70.8 mm from the observation object side, a thickness of 15.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of SBSM2 (1.607, 56.8), The third biconvex lens has a radius of curvature of 100.5 mm and -130.4 mm from the observation object side, a thickness of 20.6 mm, a diameter of 60 mm, and a material (refractive index and dispersion coefficient) of SLAL14 (1.696, 55.5), The fourth biconvex lens has a radius of curvature of 102.9mm and -102.4mm, a thickness of 24.6mm, a diameter of 61mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The fifth biconvex lens has a radius of curvature of 43.07mm and -31.4mm, a thickness of 25.7mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of SBSM16 (1.620, 60.3), respectively. The second biconvex lens has a radius of curvature of -31.4mm and 44.3mm, a thickness of 3.6mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. Characterized in that the photographing apparatus. The method of claim 11, The distance between the first biconvex lens and the first meniscus lens is 30.0mm, The distance between the first meniscus lens and the first biconvex lens is 30.0mm, The distance between the first biconvex lens and the second meniscus lens is 0.0mm, The distance between the second meniscus lens and the third meniscus lens is 3.9mm, The distance between the third meniscus lens and the second biconvex lens is 0.0mm, The distance between the second biconvex lens and the third biconvex lens is 0.5mm, The distance between the third biconvex lens and the fourth biconvex lens is 1.5mm, The distance between the fourth biconvex lens and the fifth biconvex lens is 0.5mm, And the distance between the fifth biconvex lens and the second biconvex lens is 0.0mm. The method of claim 12, And an aperture provided between the second meniscus lens and the third meniscus lens to adjust an amount of incident light. The method of claim 13, And the diameter of the diaphragm is 38.8 mm. The method of claim 10, The third concave lens has a radius of curvature of -133.2mm and 321.6mm, a thickness of 8.6mm, a diameter of 107.9mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5) from the observation object side, respectively. , The fourth meniscus lens has a radius of curvature of -1090.7mm and -138.1mm, a thickness of 25.6mm, a diameter of 158.8mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2) from the observation object side, respectively. ), The fifth meniscus lens has a radius of curvature of 228.5 mm and 182.2 mm from the observation object side, a thickness of 20.1 mm, a diameter of 155.0 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5). , The sixth meniscus lens has a radius of curvature of 121.9mm and 2092.9mm, a thickness of 30.6mm, a diameter of 148.7mm, and a material (refractive index and dispersion coefficient) of SLAL14 (1.696,55.5) from the observation object side, respectively. , The seventh meniscus lens has a radius of curvature of 107.2 mm and 197.5 mm from the observation object side, a thickness of 12.0 mm, a diameter of 119.9 mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2). , The fourth biconvex lens has a radius of curvature of -1772.6 mm and 73.6 mm from the observation object side, a thickness of 19.9 mm, a diameter of 105.6 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5). , The first biconvex lens has a radius of curvature of 370.4 mm and -189.3 mm, a thickness of 20.4 mm, a diameter of 81 mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The first meniscus lens has a radius of curvature of -70.1 mm and -73.3 mm, a thickness of 16.6 mm, a diameter of 53 mm, and a material (refractive index and dispersion coefficient) of SBSM14 (1.603, 60.6) from the observation object side, respectively. Is, The first biconvex lens has a radius of curvature of -31.6mm and 21.8mm, a thickness of 8.5mm, a diameter of 35mm, and a material (refractive index and dispersion coefficient) of STIM25 (1.672,32.1), respectively. The second meniscus lens has a curvature radius of 21.8 mm and 47.7 mm, respectively, from the observation object side, a thickness of 10.1 mm, a diameter of 35 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), The third meniscus lens has a radius of curvature of 144.2 mm and 40.7 mm, a thickness of 7.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. The second biconvex lens has a curvature radius of 40.7 mm and -70.8 mm from the observation object side, a thickness of 15.2 mm, a diameter of 47 mm, and a material (refractive index and dispersion coefficient) of SBSM2 (1.607, 56.8), The third biconvex lens has a radius of curvature of 100.5 mm and -130.4 mm from the observation object side, a thickness of 20.6 mm, a diameter of 60 mm, and a material (refractive index and dispersion coefficient) of SLAL14 (1.696, 55.5), The fourth biconvex lens has a radius of curvature of 102.9mm and -102.4mm, a thickness of 24.6mm, a diameter of 61mm, and a material (refractive index and dispersion coefficient) of SLAL10 (1.719,50.2), respectively. The fifth biconvex lens has a radius of curvature of 43.07mm and -31.4mm, a thickness of 25.7mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of SBSM16 (1.620, 60.3), respectively. The second biconvex lens has a radius of curvature of -31.4mm and 44.3mm, a thickness of 3.6mm, a diameter of 48mm, and a material (refractive index and dispersion coefficient) of STUH1 (1.717, 29.5), respectively. Characterized in that the photographing apparatus. The method of claim 15, The distance between the third concave lens and the fourth meniscus lens is 66.6 mm, The distance between the fourth meniscus lens and the fifth meniscus lens is 23.8mm, The distance between the fifth meniscus lens and the sixth meniscus lens is 10.1mm, The distance between the sixth meniscus lens and the seventh meniscus lens is 8.9 mm, The distance between the seventh meniscus lens and the fourth biconvex lens is 16.9 mm, The distance between the fourth biconvex lens and the first biconvex lens is 14.6 mm, The distance between the first biconvex lens and the first meniscus lens is 30.0mm, The distance between the first meniscus lens and the first biconvex lens is 30.0mm, The distance between the first biconvex lens and the second meniscus lens is 0.0mm, The distance between the second meniscus lens and the third meniscus lens is 3.9mm, The distance between the third meniscus lens and the second biconvex lens is 0.0mm, The distance between the second biconvex lens and the third biconvex lens is 0.5mm, The distance between the third biconvex lens and the fourth biconvex lens is 1.5mm, The distance between the fourth biconvex lens and the fifth biconvex lens is 0.5mm, And the distance between the fifth biconvex lens and the second biconvex lens is 0.0mm. The method of claim 16, And an aperture provided between the second meniscus lens and the third meniscus lens to adjust an amount of incident light. The method of claim 17, And the diameter of the diaphragm is 38.8 mm.

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