TWM399332U - Photographic lens and photographic device - Google Patents

Description

M399332 V. New description: [New technical field] The present invention relates to a photographic lens and a photographic device, and more particularly to a photographic lens suitable for use as a reading lens for reading an image of an original and a photographic lens having the same Device. [Prior Art] Conventionally, there has been known an image reading apparatus that reads a document image using a lens and images it on an imaging element such as a CCD (Charge Coupled Device) to signal the image information. Since such an image reading apparatus requires faithful reading of information of an original image, the photographic lens for reading needs to well correct various aberrations such as field curvature or distortion. In addition, in recent years, with the increase in density of the imaging element, a higher-resolution imaging lens is desired, especially when reading a color original (four) image, and (iv) designing a red (R), green (6) 'blue (B) The image of the wavelength image is roughly the same on the photographic surface of the photographic element, so that the contrast of each image becomes the same. Specifically, the small image = the deviation of the spherical aberration on each color, the fine chromatic aberration, the magnification The color image 'and then the imaging position from the center of the image to the periphery - to the image surface pair" 'K can get a high image in the wide wavelength region. K photo # upper contrast comparison line sensor is widely used as a shadow The rear component, ############################################################################################################ Resolving power, I therefore choose by using the size of the beta photographic element

It is also proposed to replace the line sensor, and use the sense of area and use the sense of area.

The field sensing person makes it possible to read the image at a time without scanning the original image, so that the scanning structure can be omitted, and the miniaturization of the device is facilitated. In the image reading device as described above, the requirement for miniaturization is higher. Strong' therefore also requires compactness of the photographic lens itself. Patent Documents 1 and 2 below describe an image reading lens having a four-piece structure and a three-piece structure which can be used in an image reading apparatus. Further, Patent Document 3'4 discloses a four-piece imaging lens, and Patent Documents 5 and 6 below describe a three-dimensional imaging lens. Patent Document 1: Japanese Patent Laid-Open Publication No. 2008-275783; Patent Document 2: Japanese Patent Publication No. 2009-5341 No. Publication No. Japanese Patent Publication No. Hei No. 2005-1 8041; Patent Document 4: Japanese Patent Publication No. 2007- Patent Publication No. 122007; Patent Document 5: Japanese Patent Publication No. 2005-181596; Patent Document 6: Japanese Patent Publication No. 2007-133324. M399332 as described above, in the photographic lens for an image reading apparatus, it is desired to satisfactorily correct various aberrations, and it is required to have high optical performance which can correspond to high-definition or high-definition photographic elements in recent years. Further, in order to reduce the size of the image reading device, it is a matter of course that the size of the image pickup lens itself is reduced, and it is necessary to shorten the focal length of the image pickup lens to shorten the conjugate length (actually, the image of the smashing smashing image to the photographic element) The distance of the face).

When the line sensor is used in the video reading device, it is advantageous for high resolution. However, since the size of the imaging element is large, the imaging magnification of the optical system cannot be reduced (the reduction ratio cannot be increased), and therefore, it cannot be shortened. The line of the photographic lens. In addition, when the conjugate length is shortened in such a device, the wide angle of the optical system is changed (4). Therefore, in the conventional photographic lens, the correction (four) of various counties is insufficient, and it is difficult to read the original image with high resolution. .

When the image reading device uses the area sensor, since the image forming rate is small (the reduction ratio becomes high), the focal length can be reduced, and the total length (four) is also relatively easy, so that the device can be miniaturized. However, when the first-order image with a large reading is read and the image is large, the range of the diagonal angle is also the range of the angle. Therefore, when the wide angle of the photographic lens is insufficient, the total (4) becomes long and the device cannot be reached. Small materials are good. -

In the lens system described in Patent Document 2, the value of ρ is 5, and the effect is sufficient to fine-grain the pixels. Further, the lens system itself has not been miniaturized, and it is required that a large imaging element is mounted on the imaging device and cannot be compact. In the lens system described in Patent Documents 3 and 4, the preset is a line end material, so that a small (four) is achieved, and F M399332 corresponds to a high resolution. However, even if the angle of view is even larger, the angle of view of the king is only 75. Since it is left and right, when the large image is read by the area sensor, it becomes insufficient, and the size of the apparatus cannot be achieved. Patent Documents 5 and 6 describe materials (4), and (4) the lens system of the 3, 4, and 5, respectively, has achieved wide-angle, but the correction of arbitrary-square chromatic aberration is insufficient, and high resolution cannot be obtained. [New content] The present invention has been made in view of the above-mentioned situation, and it is an object of the invention to provide a photographic lens that has a small F value and a high resolution 纟, achieves a wide angle, and can reduce the size of the device. An imaging device having the photographic lens. The first photographic lens of the present invention is characterized in that, from the object side, a second lens having a meniscus shape having a concave surface facing the object side; a second second lens; a negative meniscus shape facing the image side The third lens; and the negative fourth lens 'and the outermost rays of the on-axis beam pass through the normal line of the face at the point on the surface of the fourth lens object, and intersect the optical axis on the image side of the face. In the first imaging lens of the present invention, it is preferable that the outermost light of the on-axis light beam passes through the normal of the surface at the point of the object-side surface of the second lens, and the light is on the side closer to the object side than the surface. The axes intersect. The photographic lens of the present invention preferably satisfies the following conditional expression (1): 0.25 < D/f < 4.0 (1), wherein D is the optical axis of the second lens and the second lens Interval; M399332 ί The focal length of the entire system. The second imaging lens of the present invention is characterized in that a second light-transparent group and a second lens group are arranged in order from the object, and the second lens group is constituted by a first lens which has a concave surface facing the object side and a meniscus (four). "The second lens is disposed on the most object side of the second lens group, and the second lens & which has a negative refractive power is disposed on the most image side of the second lens group. One side is an aspherical lens; φ and satisfies the following conditional formula (丨): 0.25 < D / f < 4 . 〇 .., (1); where D is the optical axis of the second lens and the second lens Upper interval; f: focal length of the entire system. The second lens group as the second imaging lens of the present invention may be, for example, a fourth lens that is provided in order from the object side, and a negative second lens that has a convex shape toward the image side. The structure of the lens. In the first configuration example of the second lens group of the second photographic lens of the present invention and the second photographic lens of the present invention, the above-described "the meniscus shape in which the concave surface faces the object side" "The positive" of the second lens is "negative" in the shape of the meniscus of the third lens toward the image side, "negative" about the fourth lens, and about the second lens group. The "negative" of the lens on the image side is the case in the paraxial region. The first and second photographic lenses of the present invention satisfy the following conditional expressions (2) to (5). Further, as a preferred embodiment, one of the following conditions (2) to (5) may be satisfied, or any combination may be satisfied. M399332 0.5 < dl / D < 4.0 ... (2); · α > 50. ...(3); 〇-8< a / β < 3.0 ...(4); 〇·〇<|Ζ4|/|Ζ5|< 0.5 (5); where dl is the first The center thickness of the lens; 〇 is the distance between the first lens and the optical axis of the second lens; α is the chief ray of the light beam having the largest viewing angle of the surface incident on the first lens object side, and the principal ray passing through the object side of the first lens The angle between the normals of the faces at the points of the faces; Θ is the chief ray of the light beam of the maximum viewing angle emitted from the image side surface of the first lens and the principal ray passing through the image side surface of the first lens The angle between the normals of the faces at the points; Ζ4 is the point at which the outermost rays of the beam of the maximum viewing angle on the object side of the second lens pass through the face and the face vertices of the object side of the second lens The distance between the planes in the optical axis direction; Ζ5 is the cut of the outermost ray passing light of the light beam of the largest viewing angle on the image side of the second lens and the surface apex of the image side of the second lens The distance in the direction of the optical axis between the planes. Further, regarding the above α and (4) "incident", "ejecting" is a case where light is expected to travel from the object side to the image. Further, in the second and second imaging lenses of the present invention, the second lens may have a biconvex shape in the paraxial region. Further, in the first and second imaging lenses of the present invention, the second lens may have a normal line of the surface on which the outermost light having the on-axis light beam passes through the object side of the second lens is larger than the surface. More depends on the shape of the object intersecting the optical axis. When the second lens group of the second imaging lens of the present invention includes the second transparent lens, the third lens, and the fourth lens of the above-described configuration example, the first and second photographic lenses of the present invention preferably satisfy the following conditions. (6): V 3 < 35 (6); wherein 3 is the Abbe number of the d line of the third lens. In addition, when the second lens group of the second imaging lens of the present invention includes the second lens 'the third lens and the fourth lens of the above-described configuration example, the second lens group is preferably as follows: in the first and second imaging lenses of the present invention. The surface of the third lens having an image is an aspherical surface, and the normal of the pupil of the on-axis beam passing through the image-side surface of the third lens is on the object side of the object side. The point intersects the optical axis, and the normal of the surface of the outer surface of the light beam passing through the fifth lens passes through the surface of the image on the image side of the third lens at the second point on the object side of the third point or The optical axis is the parent or the bell sleeve is parallel or on the image side of the third lens, the optical axis is the father at the third point on the image side, and the outermost light of the beam of the 50% angle of view passes through the image side of the third lens. When the normal of the face at the point of the face intersects the optical axis at the second point, the outermost rays of the beam of the maximum viewing angle pass through the normal of the four faces at the point of the image side surface of the third lens. The second point is that the object side intersects with the optical axis or is flat with the optical axis or intersects the optical axis on the image side of the image side of the third lens, and the outermost light of the light from the 50% viewing angle When the line passes through the normal of the four faces at the point of the image side surface of the third lens parallel to the optical axis, or when the third point intersects the optical axis, the outermost light of the beam of the largest viewing angle passes through the third lens The point M399332 at the point on the side of the image is satisfied, and the following means that the normal to the surface of the third lens is on the image side and the light is "phase condition (7). In addition, it is said here. "The light on the image side of the outermost line. -0.25 < Z7m/f < -0.03 ...(7); where

The distance is set to negative, the distance from the image side is set to positive); f is the focal length of the entire system. Further, the above-mentioned "light beam of five-perspective angle of view" means a light beam incident at a viewing angle of 50% of the maximum viewing angle. Further, the "points on the aspherical surface" of the above-mentioned Z7m refer to the points on the image-side surface of the third lens, and the points of the range of the point at which the outermost rays of the light beam from the optical axis to the maximum angle of view pass are effective. Points within the diameter. When the second lens group of the second imaging lens of the present invention includes the second lens, the third lens, and the fourth lens of the above-described configuration example, it is preferable that the maximum viewing angle is the second and second imaging lenses of the present invention. The normal light of the principal beam passing through the surface of the object side of the fourth lens intersects the optical axis on the object side of the surface, and preferably satisfies the following condition: < r < 35 ° (8); where r is the angle between the normal of the face at the point where the principal ray of the light beam of the maximum angle of view passes through the object-side surface of the fourth lens and the optical axis. 10 M399332 In addition, 7 is set to i-90%^90. The angle within the range, the principal line of the maximum angle of view of the light passing through the surface of the object side of the fourth lens at the point where the normal of the surface intersects the optical axis more than the image side, the .r When the symbol is set to positive and intersects with the object side, the sign of r is set to negative. The third and second photographic lenses of the present invention may be composed of at least one lens made of a glass material. In the second and second photographic lenses of the present invention, the surface on the object side of the preferred fourth lens is a convex surface. In addition, the surface on the object side of the r fourth lens is a case where the convex surface is a paraxial region. In the first and second imaging lenses of the present invention, it is preferable that an aperture stop is disposed between the second and second lenses, and the following conditional expression (9) is satisfied: 0.0 < d3/f < 0.5 ... (9); wherein d3 is the interval between the aperture stop and the optical axis of the second lens; f is the focal length of the entire system. The first and second photographic lenses of the present invention may be formed of a polyolefin-based plastic material having an aspherical surface having at least one surface of the first lens. In addition, the "on-axis beam", "the light of the five-dimensional view", and "the light of the maximum angle of view" in this creation refer to a light beam that is incident on the maximum radius according to the specifications. Further, the "outermost light beam of a light beam" on one surface of the present invention refers to light which is included in the light beam of the light beam, and the intersection of the light and the surface is farthest from the optical axis in the direction perpendicular to the optical axis. Further, the maximum angle of view can be determined, for example, based on the size of the photographing surface of the photographing element placed on the image plane of the photographing lens. Specifically, the photographic surface is M399332 rectangle = when the diagonal length is 2 ,, the maximum image height is set to γ, and the focal length of the entire system is set to fi maximum (4), which can be expressed by the following relational expression. Among them, when there is a degree of distortion that cannot be ignored, it is preferable to consider the distortion image height. A tan6=Y/f 〇 is characterized in that it has the photographic lens created by the photographing apparatus of the present invention described above. According to the first photographic lens of the present invention, the following photographic lens can be provided. In the most v-four lens system, the shape and the power of each lens are set locally, and the object side of the fourth lens is appropriately set. The shape of the surface, so that it has a small F value and a high resolution, and can correspond to high-definition and high-definition photographic elements in recent years, and achieve sufficient wide-angle, not only can the lens system be miniaturized, but also The device is miniaturized. According to the second photographic lens of the present invention, the following lens can be provided. The shape of the lens of the lens group and the second lens power arrangement, the second lens group has two or more aspherical lenses, and satisfies the stop type (1)', so it has a small F value and a high resolution and can correspond to the recent years. The photographic elements of the lithographic and southern refinement can be fully integrated, and the lens system can be miniaturized and the device can be made. According to the photographing device of the present invention, since the photographing lens of the present invention is provided, it is possible to obtain a high image by making it compact and capable of photographing at a wide viewing angle, and having a high-definition and high-definition photographing element. In the following, the implementation of the present creation will be described in detail. A photographic lens according to a third embodiment of the present invention will be described with reference to Figs. 1A to 1D. Fig. A is a cross-sectional view showing a configuration of a photographic lens and an optical path according to an embodiment of the present invention, and corresponds to a photographic lens of an embodiment 后 to be described later. In Fig. 1A, the left side is the object side, and the right side is the image side, from the beam 3 of the maximum viewing angle of the beam 2' from the axis of the object at a predetermined finite distance. The configuration example of the second embodiment of the second embodiment of the present invention, which will be described later, will be described later with respect to the symbols G 丨 and G2 in Fig. 1A, which will be described later in the second embodiment. Figure! B and Fig. 1D are partially enlarged views of the photographic lens shown in Fig. Α. Fig. 1C shows a light beam 4 of a five-per-view angle in addition to the photographic lens and the optical path shown in Fig. A. Considering the case where the photographic lens is applied to the photographing apparatus, the photographing element 5 disposed on the image plane Sim of the photographing lens is also illustrated in FIG. 1A. In addition, when the photographing lens is applied to the photographing apparatus, 'according to the camera side of the mounted lens The structure 'is preferably provided with a cap wavelength low pass or a infrared load filter. An example in which the parallel flat plate-shaped optical member pp is disposed between the lens on the most image side and the photographic element 5 (image surface Sim) is shown in Fig. 1A. As shown in FIG. 丨A, the imaging lens according to the first embodiment of the present invention includes, in order from the object side, a first lens having a meniscus shape having a concave surface facing the object side, and a positive second lens; The negative third lens that faces the meniscus shape like the 恻, and the negative fourth lens L4. When it is important to miniaturize, it is preferable to use a very small number of lenses to form 'and preferably as shown in Fig. 1', and the number of the mirror M399332 is four. The imaging lens shown in Fig. A further includes an aperture stop disposed between the first lens L1 and the second lens L2. Further, the illustrated aperture stop st does not necessarily mean a size or a shape but a position on the optical axis ζ. By making the surface on the object side of the second lens L 1 a concave shape, in particular, for the light beam of the light beam included in the peripheral portion, the surface of each of the light rays passing through the surface of the object side of the lens L1 can be enlarged. The angle between the normal and the rays is therefore 'wide' angle can be achieved. Further, by setting the first lens L to a meniscus shape, it is possible to eliminate the positive field curvature caused by the concave surface on the object side on the convex surface on the image side. Thus, the lenticular lens L 丨 can be shaped to be wide-angled and image-corrected. Further, when the angle is widened, the concave surface of the object I of the first lens L is a strong side of the power. By setting the first lens L 1 to a meniscus shape and making the image side surface of the first lens L 1 a convex surface to have a strong refractive power, it is possible to have a strong convexity of the power of the image. A large positive field curvature caused by a strong concave surface of the power on the object side is eliminated. By arranging the second lens L2 in the image of the first lens L, it is possible to bend the cuff beam that is incident at a wide angle of view toward the optical axis side, and to achieve miniaturization. By making the third lens L3 a negative meniscus lens that has a convex surface toward the image side, while maintaining a balance with the positive second lens L2, various aberrations including spherical aberration can be easily and satisfactorily corrected. Achieve small F values and 13⁄4 resolution. As shown in FIG. 1A, in the imaging lens according to the first embodiment of the present invention, the normal line H4t of the surface at the point where the outermost light ray 6 of the on-axis light beam 2 passes through the object-side surface of the fourth lens L4 is The image of the face intersects the optical axis Z. In Fig. 1A, the normal line is not used. The intersection point P4I of the normal line Hu and the optical axis Z is located on the image side of the object side of the fourth lens L4. The on-axis light beam that has passed through the first lens L1 and the second lens L2' of the third lens L3 from the object on the axis is incident on the fourth lens L* as concentrated light. The fourth lens is a normal line of the surface where the outermost light ray 6 of the on-axis light beam 2 passes through the object-side surface of the fourth lens 匕4, and the image side of the surface is opposite to the optical axis z. In particular, for the light passing through a large area of the pupil diameter in the on-axis light beam 2, the concentrated light beam incident on the object side surface of the fourth lens unit and the light passing through the fourth lens L4 can be suppressed to a small extent. The angle between the normals at each point of the side face. Therefore, the spherical aberration of the balance between the strong positive power of the second lens L2 and the strong negative power of the third lens L3 does not change much, and only fine adjustment makes it possible to converge. Further, since the fourth lens L4 is a lens having a negative refractive power, it is possible to impart a divergence effect to the light beam emitted from the image side surface of the fourth lens L4 and to correct the spherical aberration in the transition ,, so When the 4 lens is a positive lens having a refractive power, it is easier to take a distance from the lens side of the image side of the entire system to the image surface Sim (so-called back focus). Preferably, the surface of the object of the fourth lens L4 is convex in the paraxial region. According to this configuration, in the paraxial region, the concentrated ray incident on the object-side surface of the fourth lens L4 and the point at which the respective condensed rays pass through the object-side surface of the fourth lens μ can be suppressed to a small extent. The angle between the normals. Therefore, it is not necessary to change the spherical positive aberration of the strong positive refractive power of the second lens L2 and the strong negative power balance of the third lens u to be large, and it is possible to concentrate only by fine adjustment. . M399332 Preferably, the region through which the fourth lens L4 passes the beam on the axis is a meniscus shape. Preferably, the 透镜4 lens L 4 is formed in a curved shape in which the convex surface faces the object in the paraxial region, but in addition to this, the convex beam may be oriented toward the image side in the paraxial region and the beam is on the axis. The area through which the outermost light passes passes the convex shape toward the meniscus shape of the object side. By making the fourth lens 具有 have such a f-shaped shape, the fourth lens can be finely adjusted while finely adjusting the aberration without having a strong refractive power. In other words, it is preferable that the surface on the image side of the fourth lens L4 is such that the outermost light ray 6 of the on-axis light beam 2 passes through the normal of the surface of the image on the image side of the fourth lens ( (Fig. The image side of the surface intersects with the optical axis , to constitute the fourth lens L4. By the above configuration, the normal line Hif of the surface on the object side of the fourth lens u described above can have the same effect as the structure in which the image side of the surface intersects with the optical axis z. Further, it is preferable that the imaging lens of the first embodiment of the present invention has the following configuration. Further, as a preferred embodiment, any one of the configurations may be used, or a combination of any of a plurality of configurations may be employed. When the distance between the optical axis of the first lens L1 and the second lens L2 is D and the focal length of the entire system is "", it is preferable that the imaging lens of the present embodiment satisfies the following conditional expression (1): (1). 0.25 < D / f < 4.0 Right lower than the lower limit of the conditional expression (1), since the interval between the second lens U and the second lens L2 is narrowed, it is advantageous for miniaturization of the lens, but the person is directed outside the second lens (10) Since the angle between the light beam and the optical center becomes large, when the second lens L2 to the fourth lens Μ is regarded as a lens group, the lens group also needs to be formed by 16 M399332 to form a wide-angle lens [it is difficult to correct the magnification] The chromatic aberration or the illusion of the image, the distortion of the aberration. If the upper limit of conditional expression (1) is exceeded, then the first! Lens (10) The interval between the second lens L2 is widened, and the lens system is increased by q. When 1 exceeds the upper limit of the conditional expression (1), the angle between the front beam of the sleeve and the optical axis Z of the second lens 12 can be suppressed. So it can be carried out well from the 2nd lens ^

The aberration in the lens group of the fourth lens L4 and the j-capture k are positive, but the absolute value of the curvature radius of the convex shape of the surface of the image of the second lens L丨 becomes large, and the power becomes weak. Therefore, it is difficult to correct the image curvature of the strong concave surface generated on the object side of the second lens u. In order to achieve miniaturization of the lens system, it is more preferable to satisfy the following conditional expression (1-1): 〇.25 &lt; D/ f&lt; 2.5 ... (1-1). In order to achieve better miniaturization and wide-angle of the lens system while satisfactorily correcting chromatic aberration of chromatic aberration, coma aberration, and distortion, it is more preferable to satisfy the following condition (1 - 2): 0.5 < D / f< 1·5 ,··(1-2).

When the center thickness of the second lens L1 is dl and the interval between the second lens and the second lens L 2 is set to 〇, the present photographic lens preferably satisfies the following conditional expression (2): 0.5 dl/D ^ 4.0 (2) ° Conditional Formula (2) is a formula for miniaturization and aberration correction of the lens system. Below the lower limit of the conditional expression (2), the interval between the i-th lens L1 and the second lens L2 is widened, and the angle between the peripheral beam incident on the second lens L2 and the optical axis Z becomes small, due to the first! The curvature of the convex shape of the image side surface of the lens L丨 M399332 The absolute value of the radius becomes large, so it is difficult to correct the image curvature. When the upper limit of the conditional expression (2) is exceeded, the lens becomes large when the center thickness of the first lens L 1 is thick, or the interval between the first lens L 1 and the second lens L2 is narrowed due to incidence. The angle between the peripheral beam to the optical axis Z of the second lens L2 becomes large, so that it is difficult to correct various aberrations. More preferably, the following conditional expression (2-1) is satisfied, and the lens system can be further reduced in size by satisfying the upper limit of the conditional expression (2-1), and the first lens L丨 can be prevented from becoming too thick and the workability can be lowered. : 0.5 &lt;dl/D&lt; 3.0 ... (2-1). In order to further reduce the size of the lens system and the processability of the second lens L1, it is more preferable to satisfy the following conditional expression (2-2): 〇· 5 &lt; d I /D &lt; 2.0 (2-2) ° ° As shown in Figure 1A, for this photographic lens, it will be incident on the first! The principal ray 9 of the light beam 3 having the largest viewing angle of the surface on the object side of the lens u and the normal Ηα of the surface of the principal ray 9 passing through the surface of the object side of the first lens L1 (using the stroke «spring@ τ When n is set to α, the preferred photographic lens satisfies the following conditional expression (3): u. ^' (3) 疋 is used to achieve wide angle and achieve miniaturization of the device: low At the lower limit of the conditional expression (3), it is not possible to achieve sufficient lens system _: =:, and it is difficult to reduce the size of the image pickup device by mounting the image pickup lens on the image. The method (4) Μ λ ' increases the angle formed between the front lines at the points where the plurality of surface rays pass, so that it is difficult to correct the high-order MJ99332 substitute aberration. In this case, formula (3 -1):

As shown in the figure, 'the principal ray 9 of the largest L-side Γ beam 3 incident on the object-side surface of the second lens 丨 and the point at which the principal ray 9 passes through the surface of the first lens U When the angle between the normal Ηα (shown by the scribe line) of φ = the maximum enthalpy of the beam 3 emitted from the image side surface of the first lens u, and the chief ray 9 When the angle between the normal Ηβ of the surface passing through the image side surface of the second lens 设为 is β, the photographic lens satisfies the following conditional expression (4): ' (4) Conditional expression (4) It is a formula that limits the shape of the meniscus of the second lens L丨, and is a formula that is mainly used to achieve wide-angle and good correction of field curvature. If the lower limit of the conditional expression (4) is advantageous for wide-angle, in all respects, the angle between the normal of the surface at the point where the light passes through and the light becomes larger, because

The preferred angle α further satisfies the following condition: ° 8 &lt; α / β &lt; 2.0 This peripheral beam produces high-order coma aberration ' and high resolution is not obtained. If it exceeds the upper limit of conditional formula (4), the first! The curvature of the convex shape of the image side surface of the lens Li is half! The absolute value of the image becomes large, and the correction of the curvature of field cannot be sufficiently performed. In order to improve the effect obtained by satisfying the conditional expression (4), it is more preferable to satisfy the following conditional formula (4-1): 1.0 &lt; α /β &lt; 2.0 (4-1). As shown in Fig. 1A, the second lens L2 of the photographic lens may have a biconvex shape. When the second lens L2 is a lenticular lens, it is easier to break the positive refractive power of the M399332, which is advantageous for short focus and miniaturization. When the second lens L2 is formed in a biconvex shape in the paraxial region, it is expected that such an effect can be assisted when a biconvex shape is provided in the entire region of the region through which the light beam 3 passing through the paraxial region to the maximum viewing angle passes. The total light that is imaged gives a convergence effect's, so it becomes more advantageous for miniaturization. Further, as shown in the example of FIG. 2, the second lens B of the photographic lens may be such that the outermost ray 9 of the on-axis light beam 2 passes through the object-side surface of the second lens 12. "The normal line of the surface" is a structure in which the object side intersects the optical axis on the object side. "The main partial enlarged view of the second lens L2 of the imaging lens of the eighth embodiment to be described later" is omitted in FIG. A diagram of the beam 3 of the maximum viewing angle and the beam on the object side of the rupture line. In Fig. 2, the intersection Ρ2 between the normal line H2t. and the optical axis is closer to the object side than the second lens L2. With this configuration, the outermost light of the on-axis light beam 2 on the object-side surface of the second lens L2 can be made into a concave shape by the point on the object-side surface of the second lens L2 and the vicinity thereof can be reduced. The angle between the incident ray and the normal to the surface is such that it is possible to prevent the ray from being greatly bent toward the optical axis side, and it is easy to secure a large image circle. Further, when the area on the object side of the second lens L2 has a concave shape in which the entire region from the paraxial region through which the light beam 3 passes is formed, it is easier to secure a large image circle. The second lens L2 has a biconvex structure in the paraxial region, a biconvex structure in the entire effective diameter region, and a point at which the outermost ray 9 of the on-axis beam 2 passes through the object side surface of the second lens L2. When the normal line of the surface at the intersection of the object side and the optical axis 更 intersects, the photographic lens preferably satisfies the following conditional expression (5) · 20 M399332 0.0&lt;|Z4|/|Z5 |&lt;'0.5 ...(5). As shown in FIG. 1B, the conditional expression (5) card is a point at which the outermost light ray 7 of the light beam 3 having the largest viewing angle on the object side surface of the second lens L2 passes through the surface and the second lens L2. The distance in the light extraction direction between the tangent planes of the surface vertices on the object side is set to Z4, and the point at which the outermost light ray 7 of the light beam 3 having the largest viewing angle on the image side of the second lens L2 passes through the surface The distance in the optical axis direction between the tangent planes of the surface vertices on the image side of the second lens L2 is set to Z5. 1B is a partial enlarged view t of the aperture stop St, the second lens L2, the third lens L3, the on-axis beam 2, and the beam 3 of the maximum viewing angle included in the imaging lens shown in FIG. 1A. The position of the tangent plane of the surface apex of the object side of the second lens L2 is used as a reference, and the point at which the outermost ray 7 of the light beam 3 having the largest viewing angle on the object side surface of the second lens L2 passes through the surface is compared with the reference. The sign of Z4 is set to be negative when it is on the object side, and the sign of 24 is set to be positive when it is on the image side. Similarly, in Z5, the position of the tangent plane of the vertex of the image side of the second lens L2 is used as a reference, and the outermost light beam 7 of the light beam 3 having the largest viewing angle on the image side surface of the second lens L2 passes through the surface. The point is on the side of the object more than the reference B^. The sign of Z5 is set to be negative, and the sign of Z5 is set to be positive when it is on the image side. This is preferable from the viewpoint of miniaturization and aberration correction. The absolute value of the radius of curvature of the lens [2 on the image side of the paraxial region" is half the value of the surface of the object side.

Corrected insufficient formula. Style, 21 M399332

When Z4 is positive and 丨Z4| takes a large value, and the angle formed between the light beam of the peripheral light beam and the normal line of the surface at the point where the light passes through the object side surface of the second lens L2 becomes too large, Then, high (four) form aberration is generated, and # cannot be obtained with high resolution. And if Z4 is negative and |Z4| takes a large value, and the angle formed between the light of the peripheral beam and the normal of the face at the point on the object-side surface of the second lens becomes too small In order to prevent the lens system from becoming large, it is necessary to make the light beam bend toward the optical axis side on the image side surface of the second lens L2. At this time, it is necessary to increase the angle between the light of the peripheral beam and the normal of the surface at the point on the image side surface of the second lens L2, so that |Z5| takes a large value and still produces a high-order (four) image. Poor, so, less good. In addition, when the absolute value of the radius of curvature of the image side surface of the second lens L2 is small, a large negative spherical aberration ′ occurs, and correction becomes difficult. Thus, by maintaining the values of Z4 and Z5 within the range of the conditional expression (5), the aberration can be corrected satisfactorily.

The π-attack rule u has a biconvex shape and is configured to satisfy the above-mentioned sputum (5), and the squeezing effect on the surface of the object side of the second lens L2 is suppressed to be strong, thereby suppressing high-order coma aberration and easily obtaining High resolution. The second pupil lens L2 is configured such that the normal of the surface at the point where the outermost light ray 9 of the on-axis light beam 2 passes through the object-side surface of the 'lens L2' is: intersects with light, and satisfies the above conditional expression (5) When, on the axis, ί, :::: is in. The surface on the object side of the lens U is given a diverging action, and the distance between the large lens system and the photographic element 5 can also relax the mechanical constraint of the (10) (four) shape. Further, in the off-axis light, the light incident on the surface on the object side of the second lens L2 and the normal line of the surface at the point where the "22 line passes through the object side surface of the second lens L1 can be made. Since the angle between the first lens L 丨 and the second lens L 2 is reduced, the radius of curvature of the first lens L 1 can be increased, and the maximum depth of the second lens L 1 can be reduced. The thickness ' can be reduced in the total length of the lens system. Further, "the maximum thickness j including the depth of the i-th lens L 1 means that the length from the most object side of the first lens L 1 to the optical axis direction of the point closest to the image ' is for accommodating the first The length of the space required for the lens L 1 in the optical axis direction. When the Abbe number on the d line of the third lens L3 is set to 3, the present imaging lens preferably satisfies the following conditional expression (6): v3 < 35 . "(6). The conditional expression (6) is a formula relating to the material of the third lens L3, in particular, a formula for correcting chromatic aberration. If the upper limit of the conditional expression (6) is exceeded, the correction of the chromatic aberration is insufficient. For example, when it is used in a wide wavelength region of the visible region, high resolution cannot be obtained. In the present photographic lens, it is preferable that the image side surface of the third lens L3 is aspherical. A relatively aspherical shape of the surface on the image side of the third lens L3 will be described with reference to Figs. 1C and 1D'. Further, Fig. 1c and Fig. 1D are diagrams showing an example of a relatively simple shape. The preferred embodiment is not necessarily limited to the one shown in Fig. 4'.圊丨C is a view showing a photographic lens, an on-axis beam 2 from an object located at a predetermined finite distance, a beam 3 of a maximum angle of view, and a beam 4 of a five-dimensional angle of view incident at a five-perspective angle of view of the maximum angle of view. The figure D is a partial enlarged view of the aperture St, the second lens L2, and the third lens L3. In order to avoid complication of the figure, the light only partially illustrates the most external light ray 7 of the beam 3 of the maximum viewing angle, the outermost ray 8 of the beam 4 of the five-dimensional viewing angle, and the outermost ray of the beam 2 of the on-axis. Further, the outermost rays 6, 7, and 8 referred to herein are rays on the image side surface of the third lens L3.

As shown by the circle 1D, the outermost light ray 7 of the light beam 3 having the largest viewing angle, the outermost light ray 8 of the light beam 4 having the five viewing angles, and the outermost light ray 6 of the on-axis light beam 2 pass through the image side of the third lens L3. The normal of the face at the point of the face (not shown by the broken line) is set to 'Hs, Η6, respectively. Further, the intersections between the normals &amp;, Η8, Η6 and the optical axis 设为 are set to I, Ps, and I, respectively. These three normals and points P7, PS, Ρό are shown by broken lines in Fig. 1C, but in Fig. 1C, the symbols of the normal are omitted in order to avoid complication of the drawing.

In the present photographic lens, it is preferable that the normal line 6 of the on-axis beam 2 passes through the surface of the surface of the third lens image side, and the normal line h of the surface intersects the optical axis z with a point P6 than the third lens. The image side surface of L3 is closer to the object side. Further, it is preferable that the outermost ray 8 of the light beam 4 of the following five-perspective view passes through the normal line Hs of the face at the point of the image side surface of the third lens, as shown in FIG. h, which intersects the optical axis z at a point more than the point P6; or is different from the shape of the picture in the figure C', is parallel to the optical axis 2, or is inclined to the image of the third lens L3. The face is more like the side Xiaoguang #Z intersect. It is preferable to define the image side surface shape of the third lens [3] so as to obtain some preferable forms. Thus, by easing the convex shape of the external consideration, the light beam can be bent in a direction away from the optical axis z. Make sure the image circle is large. For example, when the photographic lens is applied to the use area 影像 = image reading device, the image image is large, and the original image can be read without lengthening the total length. Therefore, the size of the device can be facilitated. 24 M399332 In addition to the aspherical shape of the image side of the third lens L3, between the points on the aspherical surface on the image side of the third lens L3 and the tangent plane of the vertex of the image side of the third lens port 嶋The longest distance in the direction: when Z7m is set, it is preferable that the photographic lens satisfies the following conditional expression, and the sign of the object is negative with respect to the tangent plane of the apex of the image side of the third lens L3. The distance from the image side is set to positive. -0.25 &lt; Z7m/f &lt; -0.03 ··· (7) 〇

The Z7m is listed in the figure ID. When the lower limit of the conditional expression (7) is exceeded, the convex shape of the image side surface of the third lens L3 is insufficiently relaxed, and the peripheral light beam is hard to be separated from the optical axis Z. Therefore, the third lens L3 and the fourth lens are not elongated. With the interval between the lenses or the interval between the lens system and the photographic element 5, a large image circle cannot be obtained, and it is not suitable for widening and miniaturization. If the upper limit of the conditional expression (7) is exceeded, a large image circle can be easily ensured, but since the angle between the peripheral ray and the normal of the face at the point through which the ray passes is increased, high-order coma aberration is generated. It is difficult to correct.

In order to reduce the focal length of the entire system, further widening and miniaturization are achieved. It is necessary to bend the peripheral light beam in a direction away from the optical axis Z on the image side surface of the third lens L3. For this reason, the outermost light ray 7 of the light beam 3 of the maximum viewing angle is preferably constructed as follows. When the point Ps at which the normal line h8 intersects with the optical axis B is more than the object of P6, it is preferable that the outermost ray 7 of the light beam 3 of the maximum viewing angle passes through the point of the image side surface of the third lens L3. The normal of the face?, as shown in Figure iC, Figure! D is represented by a point p7, and intersects the optical axis z on the image side of the image side of the third lens L3, or is different from the state shown in FIG. 1c and FIG. 1D. The object side intersects with the optical axis z or

25 M399332 Parallel to the optical axis Z. Further, when the normal line hs is parallel to the optical axis z, or when the image side of the third transparent I brother L 3 intersects the light sleeve z, the outermost light of the light source 3 of the maximum viewing angle is preferred. A point at which the normal line H? of the pupil plane passing through the surface on the image side of the third lens L3 intersects with the optical axis Z? 7 is located on the image side of the image side of the third lens L3. Preferably, the surface shape of the image side of the third lens L3 is defined as described above, and it is preferable that the day 1 further satisfies the following conditional expression (7 _丨): -0.16 &lt; Z7m/f &lt; -0.03 ·*·(7·1) 〇 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' The image is intersected with the optical axis 更 on the image side of the surface, and the normal Η γ of the surface at the point where the principal ray 9 of the light beam 3 of the maximum viewing angle passes through the object side surface of the fourth lens L4 is When the angle between the optical axes is r, it is preferable to satisfy the following conditional expression (8). Further, r is set to an angle considered in the range of -90 $ γ$90, and the normal Η γ of the face at the point where the principal ray 6 of the light beam 3 of the maximum angle of view passes through the object side surface of the fourth lens L4 is When the image side intersects the optical axis 比 more than the surface, the sign of 丫 should be set to positive 'when the object side intersects, the sign of γ is set to be negative. Hey. &lt; r &lt; 35 ° ... (8). The conditional expression (8) is for controlling an incident angle to the photographing surface when the photographing lens is mounted on the apparatus and the photographing element is disposed on the image plane Sim, that is, between the light incident on the photographing surface and the normal of the photographing surface. The formula for the angle is a formula for the mind. If the incident angle to the photographing surface becomes too large, the amount of light cannot be effectively ensured and the resolution, the light distribution, and the like are affected, so it is necessary to pay attention. M399332 passes through the maximum angle of view of the ray 9 of the light source 3 through the fourth lens (10) on the object side of the face at the point of the normal line 7 on the image side of the face and the optical axis difference ' thus the chief ray 9 The surface of the object side of the fourth lens μ that passes through is formed into a convex shape, and the entrance to the image plane is controlled to be *7 97. If the lower limit of the conditional expression (8) is lower, the imitation T P of the incident angle to the photographic surface, and the illusion of the illusion: ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί ί

The focal length of the system is widened and the obstacles of wide angle and miniaturization are relatively poor. When the upper limit of conditional expression (8) is exceeded, the angle formed between the normal line and the optical axis 2 is increased, and a high-order green material difference is generated in the peripheral portion of the light beam, so that high resolution cannot be obtained.

In order to properly correct the coma aberration so as to be more preferable to the high resolution, the following conditional expression (8-1) is further satisfied: 〇° &lt; r &lt; 25n (8-1). When the principal ray 6 of the light source 3 of the maximum viewing angle passes through the surface of the object side surface of the fourth lens Μ, the normal Η γ of the surface traverses the object side and the pupil more than the surface, which is disadvantageous in terms of telecentricity. However, the maximum thickness of the twist including the fourth lens can be reduced, so that the total length of the lens system can be reduced. However, if the absolute value is too large, the control load of the incident angle on the image side of the image side of the fourth lens 增大 is increased, and the peripheral portion of the image side surface of the fourth pupil L4 is increased. Since it has a strong convex shape, it is disadvantageous in securing the edge (edge thickness) and formability. Therefore, the principal ray 6 of the beam 3 of the maximum viewing angle passes through the plane of the surface of the object lens of the fourth lens L4 at the point where the normal line of the surface of the fourth lens L4 is closer to the object than the optical axis; The following conditional expression (8,) is satisfied: 27 M399332 -1 Ο &lt; 7 &lt; 〇. …(8,). In the present photographic lens, the F value of the lens system is preferably defined, and the aperture stop of the so-called lens system is disposed between the first lens u and the second lens L2. In this case, when the interval between the aperture stop St and the second lens [2 on the optical axis is set to d3, it is preferable to satisfy the following conditional expression (9): 〇.〇&lt;d3/f&lt;〇. 5 ... (9). The conditional expression (9) is a formula relating to the interval between the aperture stop and the second lens L2. When the upper limit of the conditional expression (9) is exceeded, the incident angle of the light to the imaging surface is good, but the incident light is incident on the aperture (5).

The height of the light of the light of St, the lens group of the image side becomes larger, and the effective diameter of each lens becomes larger, which is contrary to miniaturization. Moreover, if the total length of the optical axis direction of the lens system is to be controlled, it is necessary to shorten the distance between the first lens u and the aperture light St and increase the beam to the optical axis Z of the maximum viewing angle of the aperture (10). angle. Therefore, it is necessary to increase the angle between the respective rays on the image side of the lens L1 and the surface normal to produce high-order coma aberration, and high resolution cannot be obtained. In the photographic lens, preferably at least one of the lenses of the entire system is formed of a glass material. When the 7-lens lens is used as a monitoring lens for direct contact with outdoor air, the preferred first lens u is made of a glass material. Compared with plastic materials, glass ancestors &gt; whistle licking wet hair or ultraviolet light caused by small shadows and is not easily scratched, so it is useful. a and the 帛2 lens L2 is responsible for most of the convergence of the entire system, and has a strong positive refractive power, so if the short focal length is widened,

28 M399332 The absolute value of the radius of curvature becomes too small to easily generate high-order aberrations. Since the refractive index of the &amp; ^ material is relatively low, the tendency of the second lens ^ made of a plastic material becomes remarkable, which is not preferable. Therefore, the glass material which can be used as the refractive index is used for the second lens L2, and is also useful from the viewpoint of aberration correction. When the glass material is used for the third lens L3, the degree of f of the material of the small multiple is increased, so that the degree of freedom in designing the chromatic aberration is improved, and the lens having a higher resolution can be provided by φ. When the fourth lens L4 is made of a glass material, a material having a high refractive index can be used as compared with the case of using a plastic material, so that it is possible to use a material between the light rays and the surface of the face at the point where the light rays pass. The angle can therefore suppress the generation of high-order spherical aberration and coma aberration. In the present photographic lens, the second lens L 丨 may have at least one aspheric surface and be made of a polythene-based plastic material. It is preferable that the first lens L1 has an aspherical surface from the viewpoint of aberration correction. The absolute value of the radius of curvature of the long surface of the first lens u is made small, and high-order aberration is likely to occur. Moreover, from the viewpoint of the degree of freedom in design, Lu Cheong # uses less plastic materials than tantalum in terms of molding conditions. Regarding the plastic material, even if polycarbonate or acrylate is used, high performance can be obtained in design. However, since the outer diameter and thickness of the lens of the i-th lens U are increased, it is preferable to select a material having a large amount of refraction and a small amount of forming and bending. 'And better weather resistant materials. When using plastic materials, these requirements are met by selecting polyolefin materials. As a polyolefin-based plastic, for example, ΖΕ〇ΝΕχ (registered trademark, manufactured by ze〇n CORPORATION) can be cited.

29 M399332 In the present photographic lens, when the aperture light dark center is regarded as a lens group by a plurality of lenses on the image side, it is preferable that the lens group includes two or more lenses having aspherical surfaces to &gt; According to this configuration, even if the absolute value of the radius of curvature near the optical axis of the lens becomes small due to the short focus, the occurrence of aberration can be suppressed, and in particular, high-order aberration can be satisfactorily suppressed to achieve high optical performance. Plastics can also be used for the material of the aspherical lens. Compared with broken glass, plastic has the advantage of less restrictions on forming conditions and less compensation. Next, the photographic lens of the second embodiment of the present invention will be described. The photographic lens shown in Fig. 1A is also a configuration example of a photographic lens of the second embodiment of the present invention. The imaging lens of the second embodiment of the present invention is configured such that the first lens group 〇1 and the second lens group G2 are arranged in this order from the object side, and the first lens group G1 has a concave surface facing the object. The first lens L 1 having a meniscus shape is configured such that a positive second lens L2 is disposed on the most object side of the second lens group G2, and a lens having a negative refractive power is disposed on the most image side of the second lens group G2. The second lens group G2 includes two or more lenses whose at least one surface is aspherical. The first lens group G 配置 disposed on the object side is configured by the first lens L 构成 formed by the meniscus lens having the concave surface facing the object side, and in particular, the light rays of the light beam included in the peripheral portion can be increased by the light rays. The normal line of the surface at the position of the surface on the object side of the lens L 1 and the angle between the respective rays are thus widened. In addition, through the first! The lens L is set to a meniscus shape, and the convex surface on the image side can eliminate the positive image plane stun caused by the concave surface on the object side. Thus, the first lens L is adapted to have a shape that is wide-angled and corrected for the image plane. Further, when the angle is widened, the concave surface on the object side of the first lens L I is a surface having a strong power of light M399332. The #丨 丨 lens L丨 is set to a meniscus shape, and the second lens [丨 恻 恻 恻 设为 设为 设为 设为 设为 而 而 而 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除 消除A large positive image plane curvature generated on a concave surface having a strong power on the object side. By arranging a lens having a positive refractive power on the most object side of the second lens group G 2 , it is possible to achieve a short focus and to contribute to downsizing. By arranging a lens having a negative refractive power on the most image side of the second lens group G2, it is possible to impart a divergence effect to the light beam emitted from the image side surface of the lens having a negative refractive power. Since the spherical aberration is corrected, it is easy to take the distance from the most image side lens surface to the image surface Sim (so-called back focus) of the entire system as compared with a lens having a positive refractive power. When the second lens group includes two or more aspherical lenses, even if the absolute value of the radius of curvature in the vicinity of the optical axis is made small, the occurrence of aberration can be suppressed. In particular, high optical performance can be achieved by suppressing high-order aberrations well. The aspherical lens included in the second lens group G2 is made of plastic. Plastic glass has the advantage of being less restrictive in forming conditions and being inexpensive. When the distance δ between the optical axis of the first lens L1 and the second lens L2 is set to be D 'the whole system', the imaging lens of the second embodiment of the present invention satisfies the following conditional expression ( 1). The effect obtained by satisfying the following conditional formula (相同) is the same as that described in the description of the first embodiment: 0-25 &lt; D/f &lt; 4.0 (1). In the range in which the imaging lens of the second embodiment of the present invention does not contradict the basic configuration of the above-described embodiment, one of the more complicated configurations or the available configurations described in the M399332 lens of the first embodiment can be employed. Structure, or any combination. As shown in FIG. 1A and FIG. 2A, the second lens group G2 of the imaging lens according to the embodiment of the present invention may include a positive second lens L2 in order from the object side, and a meniscus shape in which the convex surface faces the image side. Negative third lens L3; and negative fourth lens. When the miniaturization and the high resolution are achieved, the second lens group G2 may have a three-piece structure of the second lens L2 to the fourth lens L4. When the second lens group 〇2 of the imaging lens of the second embodiment of the present invention includes the second lens L2 to the fourth lens L4 in this order from the object side, the second lens described in the first embodiment may be used. A preferred structure of the lens L2 to the fourth lens L4, or a structure that can be employed, or an arbitrary combination. Further, when miniaturization is emphasized, the second lens group (32 may be configured by two lenses having positive refractive powers.) or when the performance is high, the second lens group G2 may be composed of four or more pieces. Next, a numerical embodiment of the photographic lens of the present invention will be described. The lens cross-sectional views of the embodiment 丨 to the ninth embodiment are shown in Fig. 3 to Fig. 1 respectively. In Fig. 3 to Fig. 1, the left side is the object. Side, right side is image side, also - and shows on-axis beam 2, maximum viewing angle beam 3, optical component pp from an object at a predetermined finite distance. The aperture stop S t illustrated in Figures 3 to 11 is not necessarily - The position and the shape are indicated, and the position on the optical axis z is shown. The lens information of the imaging lens of the first embodiment is shown in Table 2. The aspherical data is shown in Table 2. The aspherical data is shown in Table 3. The lens data, specifications (4), and aspherical surface (4) of the photographic lens of Example 2 to are shown in Table 27 respectively. ' 32 M399332 In the lens data of each table, the face of the lens on the most object side is shown in the si column. The ith of the first one that increases sequentially toward the image side The face number of i=丨, 2′ 3,···), the radius of curvature of the i-th face is shown in the ri column, and the i-th face and the 丨+1 face of the light sleeve Z are shown in the di column. In addition, the sign of the radius of curvature is set to be positive when the object is convex, and negative when it is convex toward the image side. Further, in the lens data, the lens on the most object side is shown in the nej column. The refractive index of the jth (j=丨, 2, 3, ...) optical element to the e-line (wavelength 546.1 nm) which is sequentially increased toward the image side, and the jth is displayed at v dj The Abbe number of the optical element to the d line. In addition, the lens data also includes the aperture stop St and the optical component pp 拦 in the face of the surface corresponding to the aperture stop St. Description (Aperture stop) The actual data of each table shows the actual value, the value of the magnification, the full angle of view, and the focal length. In addition, in the entire table, "mm" is used as the unit of length in the table, and it is used as the angle unit. Degree. However, in one of these cases, even if the ratio is enlarged or scaled down, the optical system can obtain the same optical performance, so Other suitable units. In the lens data of each table, the * is attached to the surface number of the aspherical surface, which indicates the paraxial radius of curvature of the radius of curvature of the aspherical surface (the value of the heart: half of the rate. In the spherical data, the aspherical surface number is shown.

Each aspherical aspherical system κ, η-order aspherical system Bn (n=3, 4, 5, . . . , 山, L L 2 〇). The aspherical coefficients of the aspherical surface, for each aspherical surface, will be "the height of the optical axis Ζ vertical direction &amp; τε _ 幻度度6 is the y '咼度y y aspherical plane from the vertices of the plane vertex The distance in the direction of the pill axis is set to Zf(y), the curvature of paraxial 1 is c, and the following aspherical U is used by the curved sheep. The coefficient when the flying surface is not the spherical shape: gas*» M399332

Zf(y) = c.y2/[l+(l-K‘c2.y2)i/2]+ Σ Bn.|y|'' . The numerical value "E-Om" (m: integer) of the aspherical system of each table means x 10 - m, and E + Om (m : integer) means xlO'n. [Table 1] Example 1 Lens data si ri di nej vdj *1 -2.906 2.369 1.5362 56.0 *2 -3.177 1.724 3 (aperture aperture) 〇〇0.191 *4 3.715 1.866 1.5362 56.0 *5 -1.020 0.161 *6 -0.533 0.496 1.6197 25.5 *7 -0.963 0.136 *8 2.700 1.012 1.5362 56.0 *9 2.332 0.466 10 CO 0.980 1.5182 64.1 11 oo 0.400 12 (image surface) oo [Table 2] Example 1 specification data Effectiveness F value 2.90 Rate 0.01554 Full view 99.56 Focal length 2.647 [Table 3] Example 1 Aspherical data si 1 2 4 5 κ 4.440167Ε-01 1.761642Π-02 -7.922949Ε+00 -1.666496Ε+00 Β3 4.374097Ε-03 7.4171 76Ε-03 2.138380Ε-02 - 1.721023Ε-03 34 M399332

B4 2.082558E-02 ' 1.405933E-02 -9.36983 IE-02 -6.553326E-02 B5 -3.740713 E-03 -3.106935E-03 I.973614E-01 2.438639E-02 B6 -2.047297E-03 -3.356754E- 03 -5.917016E-02 3.344983E-02 B7 6.297823E-04 1.806605E-03 -2.894470E-01 -1.41901 IE-02 B8 1.898982E-04 -1.187840E-04 6.371661E-02 -3.726984E-02 B9 - 9.738164E-05 -9.563998E-05 3.932081E-01 -5.516948E-02 BIO 1.120934E-05 1.714784E-05 -2.431945E-01 5.459544E-02 Bll 〇.〇〇〇〇〇〇E 丄00 〇. 〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B13 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇 .〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇 〇〇E+00 〇.〇〇〇〇〇〇E+00 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 BI6 〇.〇〇〇 〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 O.OOOOOOE+OO B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇 〇〇E+00 O.OOOOOOE+OO 〇.〇〇〇〇〇〇E+00 B18 O.OOOOOOE+OO 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 O .OOOOOOE+OO B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 si 6 7 8 9 K -8.513334E-01 -2.064245E+00 -2.684989E+00 -6.745465E+00 B3 1.310734E-01 1.297239E-01 3.565119E-02 -7.016623E-02 B4 -2.677839E-01 -4.846101E-01 - 2.473844E-01 6.98722 IE-02 B5 1.171004E+00 1.608233E+00 4.454533E-01 -3.514078E-02 B6 -1.964801 E+00 -2.894153E+00 -7.802235E-01 -2.350114E-02 B7 1.979829E +00 3.349725E+00 8.584581E-01 1.867939E-02 B8 -1.287951 E+00 -2.281206E+00 -5.134313E-01 3.678741E-03 B9 3.969310E-01 8.233119E-01 1.581859E-01 -3.381829E -03 BIO -1.720727E-02 -1.228772E-0 1 -1.986559E-02 1.280555E-04 Bll 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -5.234309E-05 -5.974397E-04 B12 〇.〇〇〇〇 〇〇E+00 〇.〇〇〇〇〇〇E+00 1.391244E-05 3.068517E-04 B13 O.OOOOOOE+OO 〇.〇〇〇〇〇〇E+00 2.488355E-05 -2.84877 IE-05 B14 〇.〇〇〇〇〇〇E+00 O.OOOOOOE+OO -1.040772E-06 7.024265E-05 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.957723 E-06 -2.740078E-05 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.984393E-06 -8.634792E-06 B17 O.OOOOOOE+OO 〇.〇 〇〇〇〇〇E+00 -2.055124E-06 7.081806E-06 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -8.357583E-06 -2.822986E-06 B19 O.OOOOOOE+OO 〇.〇〇〇〇〇〇E+00 7.823607E-06 8.590844E-07 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.658252 E-06 -1.121968E-07 [Table 4] M399332 [Table 4] Example 2 Lens data si ri di nej -3.116 2.497 1.5362 56.0 *2 -3.276 1.476 3 (aperture stop) CO 0.149 *4 5.549 2.300 1.5362 56.0*5 -0.705 0.089 *6 -0.467 0.351 1.6381 23.2 7 -0.748 0.094 *8 2.944 0.700 1.5362 56.0 *9 1.198 1.027 10 oo 0.300 i.5182 64.1 11 oo 0.400 12 (image surface) oo

[Table 5] Example 2 specification data Effective F value 2.79 Magnification 0.01500 Full viewing angle 101.20 Focal length 2.553

L Table 6] Example 2 Aspherical data si 1 2 4 5 κ 3.918004Ε-01 -2.289463Ε-01 3.364977Ε+01 -3.382133Ε+00 Β3 6.28566 IE-03 9.739649Ε-03 5.108360Ε-02 1.204840Ε- 01 Β4 1.966354Ε-02 1.523620Ε-02 -2.917914Ε-01 -2.685104Ε-01 Β5 -3.602900Ε-03 -4.187003Ε-03 4.529668Ε-01 -2.639177Ε-02 Β6 -2.080988Ε-03 -3.426067Ε- 03 -1.013220Ε-01 5.987114Ε-02 Β7 6.162299Ε-04 1.886967Ε-03 -4.905645Ε-01 2.435392Ε-02 Β8 1.933630Ε-04 -1.152820Ε-04 -2.741018Ε-02 -9.674330Ε-03

36 M399332

B9 -9.744897E-05 '-9.707888E-05 5.646013H-01 -3.595936E-02 B10 1.088451 E-05 1.801423E-05 -7.111765E-01 4.605455E-02 ΒΠ 4.305125E-08 -1.569166E-07 2.837444 E-01 -1.082159E-03 B12 8.780913E-09 -1.664448E-07 1.367736E+00 -1.358049E-02 B13 -1.018979E-09 -5.353460E-08 -3.45993 IE-02 -7.470502E-03 B14 - 1.005938E-09 2.625384E-08 -1.470105K+00 6.700324E-03 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+ 00 〇.〇〇〇〇〇〇E+00 B16 O'OOOOOOE+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+ 00 B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B18 〇.〇 〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B19 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B20 〇.〇〇〇〇〇〇E+00 〇. 〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇 .〇〇〇〇〇〇E+00 si 6 7 8 9 K -2.138252E+00 -3.230202E+00 -1.000011E+01 -7.256099E-02 B3 1.906354E-01 2.081562E-01 1.475497E-01 - 1.334787E-01 B4 -4.377522E-01 -5.957247E-01 -3.114749E-01 -9.181204E-02 B5 1.110148E+00 L629386E+00 4.455308E-01 7.15704 IE-02 B6 -1.919723 E+00 -2.874384E +00 -7.727758E-01 -2.907846E-02 B7 2.033499E+00 3.351828E+00 8.625222E-01 1.109579E-02 B8 -1.258810E+00 -2.286318E+00 -5.134029E-01 2.010223E-03 B9 4.045234E-01 8.190361E-01 1.575955E-01 -3.018698E-03 ΒΙΟ -5.150894E-02 -1.226978E-01 -2.027040E-02 4.414414E-04 Bll 〇.〇〇〇〇〇〇E+00 1.093076 E-04 -2.157256E-04 -4.768385E-04 B12 〇.〇〇〇〇〇〇E+00 2.700370E-04 -4.754865E-06 3.314526E-04 B13 〇.〇〇〇〇〇〇E+00 8.577017E-05 4.429574E-05 -4.492814E-05 B14 〇.〇〇〇〇〇〇E+00 1.055193E-04 1.U0386E-05 6.615712E-05 BI5 〇.〇〇〇〇〇〇E+00 -1.649584E-05 9.693166E-06 -3.076384E-05 B16 〇.〇〇〇〇〇〇E+00 -2.193369E-05 2.060412E-06 -9.007137E-06 B1 7 〇.〇〇〇〇〇〇E+00 -1.104703E-07 -3.947550E-07 7.120269E-06 B18 〇.〇〇〇〇〇〇E+00 9.872884E-06 -6.097012E-06 -2.656497E -06 B19 〇.〇〇〇〇〇〇E+00 6.031608E-06 3.330207E-06 9.447924E-07 B20 〇.〇〇〇〇〇〇E+00 -4.335315E-06 -4.96101 IE-07 -1.398644 E-07 [Table 7] Example 3 Lens information si ri di nej v dj *1 -3.076 1.297 1.8081 46.6 37 M399332 Ben 7 -3.108 1.279 : 3 (courtesy light) 〇〇0.600 *4 3.529 1.595 1.5362 56.0 * 5 -0.706 0.105 *6 -0.524 0.560 1.8550 23.8 7 -1.070 0.081 *8 1.357 0.702 1.5362 56.0 *9 1.098 0.896 10 〇〇0.300 1.5182 64.1 11 〇〇0.400 1 12 (image surface) 〇〇

[Table 8] Example 3 specification data Effective F value 2.72 Magnification 0.01500 Full viewing angle 101.72 Focal length 2.551 [Table 9] Example 3 Aspherical data

Si 1 2 4 5 K 4.02361 IE-01 -1.150732E+00 7.333006E+00 -4.157875E-00 B3 6.515514E-03 4.487906E-03 3.576652E-02 -5.500253E-02 B4 1.940366E-02 1.546417E- 02 -1.952367E-01 -8.022932E-02 B5 -3.750844E-03 -4.112519E-03 2.862393E-01 1.535980E-04 B6 -2.049205E-03 -3.532227E-03 -9.141328E-02 2.489363E-02 B7 6.34245 IE-04 1.867663E-03 -3.753221E-01 8.501281E-03 B8 1.961016E-04 -1.137111E-04 1.382558E-01 -6.799298E-03 B9 -9.791369E-05 -9.387633E-05 7.175269B -01 -3.519663E-02 B10 1.062992E-05 1.869564E-05 -7.016249E-01 4.387174E-02 Bll -5.459797E-08 -1.878029E-07 -4.993116E-02 -2.228239E-03 B12 -1.189039E -08 -2.19099 IE-07 1.654130B-01 -9.531295E-03 B13 3.326100E-10 -6.935085E-08 8.6748! 5 E-02 -7.889636E-03 B14 3.501438E-09 2.875859E-08 -6.808787E- 02 5.857978E-03 38 M399332

B15 〇.〇〇〇〇〇〇Ε+ϋΟ .0.000(Χ)0Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 B16 〇.〇〇〇〇〇 〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 B17 〇.〇〇〇〇〇〇Ε+00 〇 .〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 B18 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇 〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 B19 〇.〇〇〇〇〇〇Ε+00 Ο.ΟΟΟΟΟϋΕ+ΟΟ 〇.〇〇〇〇 〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 B20 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇F+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 si 6 7 8 9 K -2.552472Ε+00 -3.905066Ε+00 -4.216663Ε+00 -1.696644Ε+00 B3 -2.251600Ε-02 7.372289Ε-02 7.745489Ε- 02 2.063397Ε-02 B4 -3.868244Ε-01 -5.667327Ε-01 -2.169783Ε-01 -1.137505Ε-01 B5 1.188770Ε+00 1.59343 7Ε+00 4.144734Ε-01 6.477051Ε-02 B6 -1.912875Ε+00 - 2.881075Ε+00 -7.842109Ε-01 -2.8 24968Ε-02 B7 2.014050Ε 卞00 3.357531Ε+00 8.608800Ε-01 1.229271 Ε-02 B8 -1.262641 Ε+00 -2.279496Ε+00 -5.128579Ε-01 2.207477Ε-03 B9 4.092488Ε-01 8.226709Ε-01 1.582304 Ε-01 -3.144311Ε-03 B10 -5.178931Ε-02 -1.222019Ε-01 -1.992750Ε-02 3.406526Ε-04 Bll 〇.〇〇〇〇〇〇Ε+00 -1.356333Ε-05 -1.227937Ε-04 -5.129692Ε-04 B12 〇.〇〇〇〇〇〇Ε+00 -5.782159Ε-05 1.042292Ε-05 3.264965Ε-04 B13 〇.〇〇〇〇〇〇Ε+00 -1.378932Ε-04 3.001079Ε- 05 -4.249934Ε-05 B14 〇.〇〇〇〇〇〇Ε+00 2.638972Ε-05 -2.094183Ε-06 6.885887Ε-05 B15 〇.〇〇〇〇〇〇Ε+00 -7.420946Ε-05 3.376326Ε -06 -2.970756Ε-05 B16 〇.〇〇〇〇〇〇Ε+00 -4.152517Ε-05 5.800035Ε-07 -8.761259Ε-06 B17 〇.〇〇〇〇〇〇Ε+00 1.209091Ε-05 - 9.780357Ε-08 7.072636Ε-06 B18 〇.〇〇〇〇〇〇Ε+00 1.974608Ε-05 -5.437220Ε-06 -2.733851Ε-06 B19 〇.〇〇〇〇〇〇Ε+00 1.417138Ε-05 3.639254Ε-06 9.148677Ε-07 B20 〇.〇〇〇〇〇〇Ε+00 -7.593927Ε-0 6 -6.307744Ε-07 -1.279907Ε-07 [Table ι〇] Example 4 Lens information si ri di nej V dj *1 -2.952 2.226 1.5362 56.0 *2 -3.027 1.485 3 (aperture stop) 〇〇0.236 *4 4.243 2.099 1.5362 56.0 *5 -0.993 0.110 *6 -0.559 0.38! 1.6381 23.2 7 -0.956 0.152 39 M399332 *8 1.663 0.801 1.5362 56.0 *9 1.329 0.828 10 〇〇0.300 1.5182 64.1 11 ] 〇〇0.400 12 (image surface) 〇 〇[Table 11] Example 4 Specifications Data Effectiveness F Value 2.80 Magnification 0.01500 Full View Angle 101.20 Focal Length 2.553

[Table 12] Example 4 Aspherical Data

-1. S1 1 2 4 5 Ί -K 3.840568Ε-01 -2.236693Ε-01 1.576560Ε+00 -2.681345Ε+00 j —B3 7.044105Ε-03 1.112685Ε-02 4.189296Ε-02 2.259855Ε-02 ! — B4 1.994187Ε-02 1.466300Ε-02 -2.102149Ε-01 -1.183648Ε-01 —B5 -3.745501Ε-03 -3.888883Ε-03 3.647262Ε-01 -3.077012Ε-02 .. .· B6 -2.079188Ε-03 -3.458387Ε-03 -1.144453Ε-01 2.880495Ε-02 B7 6.256885Ε-04 1.874073Ε-03 -4.294460Ε-01 1.939288Ε-02 βΓ- 1.951917Ε-04 -1.159243Ε-04 1.047318Ε-01 -1.684629Ε -03 —Β9 -9.741873Ε-05 -9.614983Ε-05 7.624637Ε-01 -3.520119Ε-02 Β10 1.083663 Ε-05 1.815296Ε-05 -6.329047Ε-01 4.042828Ε-02 Bll 2.475604Ε-08 -1.864004Ε- 07 -1.358402Ε-02 -4.402922Ε-03 ΒΐΓ&quot; 5.392725Ε-09 -1.398810Ε-07 1.402274Ε-01 -1.000364Ε-02 —Β13 -2.698095Ε-10 -3.941960Ε-08 1.222280Ε-02 -6.541564Ε -03 一Β14 -7.435125Ε-10 1.807728Ε-08 -4.298143Ε-02 6.392841Ε-03 ~Β15 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇 〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+0 0 &quot;&quot;Β16 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 —Β17 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 ~ Β18 〇. 〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 —Β19 〇.〇〇〇〇 〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 —Β20 〇.〇〇〇〇〇〇Ε+ 00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00 〇.〇〇〇〇〇〇Ε+00

40 M399332 si 6 ' 7 8 9 K -2.060145E+00 -3.455089E+00 -1.000033E+01 -3.399024E+00 B3 -1.318573 E-02 6.006044E-02 1.012667E-01 1.404018 E-02 B4 -3.279693 E-01 -5.004457E-01 -2.880685E-01 -9.599669E-02 B5 1.203598E+00 1.615166E+00 4.448964E-01 5.287959E-02 B6 -1.929173E+00 -2.878474E+00 -7.771315E- 01 -2.657041 E-02 B7 1.997461E+00 3.354718E+00 8.607730E-01 1.284859E-02 B8 -1.270147E+00 -2.282438E+00 -5.133448E-01 2.178587E-03 B9 4.097273E-01 8.203712E -01 1.579827E-01 -3.188768E-03 ΒΙΟ -4.779404E-02 -1.235049E-01 -2.002080E-02 3.332204E-04 Bll 〇.〇〇〇〇〇〇E+00 -5.080244E-04 -1.45299 IE-04 -5.110881E-04 B12 〇.〇〇〇〇〇〇E+00 -1.681226E-04 4.945940E-06 3.289239E-04 B13 〇.〇〇〇〇〇〇E+00 -1.095394E-05 2.884983E-05 -4.143046E-05 B14 〇.〇〇〇〇〇〇E+00 1.575902E-04 -2.212056E-06 6.912070E-05 B15 〇.〇〇〇〇〇〇E+00 3.247325E-05 3.747707E-06 -2.969008E-05 B16 〇.〇〇〇〇〇〇E+00 1.445240E-05 1.014696E-06 -8.806944E-06 B17 〇. 〇〇〇〇〇E+00 9.829729E-06 2.320936E-07 7.040364E-06 B18 〇.〇〇〇〇〇〇E+00 5.165074E-06 -5.293549E-06 -2.746728E-06 B19 〇.〇 〇〇〇〇〇E+00 7.718066E-07 3.666368E-06 9.133963E-07 B20 〇.〇〇〇〇〇〇E+00 -3.93848 IE-06 -6.830472E-07 -1.248254E-07

[Table 13] Example 5 Lens data si ri di nej vdj *! -2.781 2.482 1.5362 56.0 *2 -3.130 1.704 3 (aperture aperture) oo 0.156 Μ 3.933 1.976 1.5362 56.0 *5 -1.092 0.222 *6 -0.586 0.484 1.6381 23.2 7 -1.026 0.135 *8 2.377 0.935 1.5362 56.0 *9 2.039 0.794 10 OO 0.300 1.5182 64.1 11 OO 0.400 12 (様面) oo 41 M399332 [Table 14] Example 5 specification data ^effect F value 2.80 magnification 0.01500 full viewing angle 101.19 Focal length 2.556 [Table 15] Example 5 Aspherical data si 1 2 4 5 1 K 3.722617E-01 -4.721170E-02 -2.249129E+00 -3.414808E-00 B3 8.330607E-03 1.185403 E-02 2.886840E- 02 -2.702819E-02 B4 2.067477E-02 1.398002E-02 -1.786344E-01 -8.989585E-02 B5 -3.792934E-03 -3.493244E-03 3.693256E-01 1.709769E-03 B6 -2.081402E-03 -3.400306E-03 -I.446155E-01 j 4.344025E-02 B7 6.29860 IE-04 1.870283E-03 -4.879026E-01 | 1.535764E-02 B8 1.965643E-04 -1.212489E-04 1.241034E-01 - 1.832041 E-02 B9 -9.737891 E-05 • 9.825154E-05 8.628845E-01 -5.167792E-02 B10 1.076153 E-05 1.756690E-05 -6.022636E-0 1 3.509158E-02 Bll -1.596210E-08 -1.855977E-07 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B12 -2.535670E-09 -8.275115E-08 〇 .〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B13 2.728590E-10 -1.105915E-08 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇 E+00 B14 4.770288E-10 1.525530E-08 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇 〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E +00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇 〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇. 〇〇〇〇〇〇E+00 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇 〇〇E+00 〇.〇〇〇〇〇〇E+00 si 6 7 8 9 κ -1.547463E+00 -2.987364E+00 -9.999190E+00 -6.058412E+00 B3 6.730206E-02 1.327301 E- 01 1.141964E-01 -6.92883 IE-03 B4 -2.906693 E-01 -4.986090E-01 -2.967290E-01 -9.280527E-03 B5 1.172980E+00 1.591812E+00 4.571674E-01 -8.207325E-03 B6 -1.968475E+00 -2.890152E+00 -7.763909E-01 -1.793268E-02

42 M399332 B7 1.9902181^00 ' 3.355880E+00 8.591491E-01 1.678602E-02 B8 -1.260857E+00 -2.279880E+00 -5.141016E-01 2.499983E-03 B9 4.218693F:-01 8.218509E-01 1.578083 E-01 -3.410506E-03 B10 -5.075147E-02 -1.229354E-01 -1.999472E-02 1.97846 IE-04 B1! 〇.〇〇〇〇〇〇E+00 -4.341145E-04 -9.053558E- 05 -5.481527E-04 B12 〇.〇〇〇〇〇〇E^OO -2.532490ΕΌ4 3.286252E-05 3.262284E-04 B13 〇.〇〇〇〇〇〇E+00 -2.230867E-05 3.641302E-05 -3.773548E-05 B14 〇.〇〇〇〇〇〇F.+00 1.670046E-04 -2.158604E-06 7.177765E-05 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 1.949284E-06 -2.867823E-05 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 5.936153E-08 -8.662795E-06 B17 〇.〇〇 〇〇〇〇F.+OO 〇.〇〇〇〇〇〇E+00 -2.747016E-08 6.951045E-06 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+ 00 -5.206633E-06 -2.830732E-06 B19 〇.〇〇〇〇〇〇E^OO 〇.〇〇〇〇〇〇E+00 3.762956E-06 8.865090E-07 B20 〇.〇〇〇〇〇 〇E +00 〇.〇〇〇〇〇〇E+00 -7.059 Ϊ28Ε-07 -1.105240E-07

[Table 16] Example 6 Lens data si ri di nej &gt;dj *1 -3.075 4.668 1.7513 51.3 *2 -4.864 3.075 3 (aperture stop) οο 0.217 Μ 2.648 2.016 1.5362 56.0 *5 -0.803 0.129 *6 -0.572 0.519 1.7044 30.1 η -1.321 0.430 *8 -27.020 0.938 1.5182 64.1 *9 -46.130 0.894 10 ΟΟ 0.400 1.5182 64.1 η οο 0.400 12 (image surface) οο

[Table ] Example 6 specification data Effective F value 2.80 Magnification 0.10400 M399332 Full viewing angle 97.38 Focal length 2.403 [Table 18] Example 6 Aspherical data

Si 1 2 4 5 K 4.072013E-01 -8.241527E-01 -1.109621E+01 -3.828539E+00 B3 -6.256899E-03 -6.010785E-03 2.994052E-02 -1.145746E-02 B4 2.275279E-02 1.382553E-02 -9.492944E-02 -1.170065 E-01 B5 -3.573600E-03 -2.849266E-03 3.131676E-01 -1.103844Π-02 B6 -2.121715E-03 -3.218616E-03 -8.342978E-02 5.108484E-02 B7 6.133981E-04 1.820277E-03 -4.362675E-01 2.255230E-02 B8 1.959222E-04 -1.32976 IE-04 9.042073E-02 -1.603595E-02 B9 -9.646742E-05 -1.004153E -04 5.095679E-01 -5.512176E-02 B10 1.061525E-05 1.847071E-05 -2.972268E-01 3.926018E-02 Bll 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E +00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇 〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E 00 丨B13 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 〇.〇〇〇〇〇〇E - 00 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇 .〇〇〇〇〇〇t&gt;0 0 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B16 〇.〇 〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B17 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B18 〇.〇〇〇〇〇〇E+00 〇. 〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E 丄00 〇.〇〇〇〇〇〇E+00 B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇 .〇〇〇〇〇〇E-^-00 〇.〇〇〇〇〇〇E+00 si 6 7 8 9 κ -2.818784E+00 -9.999992E+00 -8.708997E-01 9.979470E+00 B3 1.000903 E-02 1.34420 IE-01 1.666073E-01 -2.183113E-02 B4 -3.275668E-01 -4.384493E-01 -2.517568E-01 6.462004E-02 B5 1.174677E+00 1.578922E+00 4.650537E-01 - 1.996564E-02 B6 -1.964016E+00 -2.906657E+00 -7.798428E-01 -2.267401 E-02 B7 1.9 80307E+00 3.346478E+00 8.559483E-01 1.691858E-02 B8 -1.261127E+00 -2.281176E+00 -5.154996E-01 3.59505 IE-03 B9 4.192352E-01 8.248573E-01 1.574815E-01 -3.382901 E-03 BIO -3.888273E-02 -1.231578E-01 -1.992115E-02 3.816572E-04 Bll 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.744436E-05 -5.780295E-04 1 B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 3.981265E-05 3.232424E-04 44 1099332 B13 〇.〇〇〇〇〇〇E+ 00 〇.〇〇〇〇〇〇E+00 8.226618E-05 -3.804948F-05 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.475188E-05 7.162711K -05 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 9.385781 B-06 -3.251939E-05 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇 〇〇〇〇E+00 -3.160878E-06 -8.293458E-06 B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -4.557744E-06 6.088109E-06 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -9.728757E-06 -3.344277E-06 B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇 〇〇E+00 6.805558H-06 9.972540E-07 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.059342E-06 -1.499954E-08 [Table 19] Example 7 Lens Information

Osi ri di nej vdj *1 -3.247 2.771 1.5362 56.0 *2 -3.306 1.478 3 (aperture aperture) 〇〇0.626 *4 3.791 1.832 1.5182 64.1 *5 -1.167 0.119 *6 -0.668 0.352 1.9343 18.9 7 -0.994 0.081 *8 1.379 0.700 1.5362 56.0 1.109 1.034 10 〇〇0.300 1.5182 64.1 11 〇〇0.400 12 (image surface) 〇〇[Table 20] Example 7 Specification data Effectiveness F value 2.71 Magnification 0.01480 Full viewing angle 101.75 Focal length 2.523 [Table Sichuan Example 7 Non Spherical material 45 M399332 si l 1 ? 4 5 K 3.892175E-01 -4.577789E-01 7.025519E+00 -1.193910R+00 B3 1.624670E-03 6.021336E-03 4.565967E-02 3.415625E-02 B4 1.926150E -02 1.750628E-02 | -2.188820E-01 -1.732010E-01 j B5 -3.021295E-03 -4.763580E-03 1 3.624951 E-01 I.133766E-02 i B6 -2.046903E-03 -3.317170E- 03 -1.844444E-01 5.046414E-02 i B7 5.940725E-04 I.917618E-03 -3.593568E-0I 6.397704E-03 | B8 1.875755E-04 -1.241884E-04 2.251775E-01 -1.674378E-02 j B9 -9.80544 IE-05 -1.016246E-04 7.504797E-01 -3.344850E-02 BIO 1.113316E-05 1.757438E-05 -8.219800E-01 5.004825E-02 Bl l 1.111614E-07 2.092703E-07 -2.366050E-01 2.556035E-03 B12 1.831091E-08 -1.389325E-07 6.767002E-01 -1.323100E-02 B13 -5.583775E-10 -1.241485E-07 -2.963028 E-01 -9.161952E-03 B14 -2.309184E-09 5.319066E-08 3.093753E-02 6.410968E-03 i B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E^OO 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E 卞00 B16 〇.〇〇〇〇〇〇E+OO 〇.〇〇〇〇〇〇E+00 〇.〇〇〇 〇〇〇E+00 〇.〇〇〇〇〇〇ΕτΟΟ B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇 .〇〇〇〇〇〇E-00 ; B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇 〇〇〇E+00 | B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E ^OO 1 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 si 6 7 8 9 ! K -4.046246E+00 -3.653983E+00 -9.999877E+00 -5.695972E-01 B3 1.173659E-01 2.289359E-01 2.728J33E-01 -I.544536E-02 B4 -4.297102E-01 -6.813352E-01 -3.785190E-01 -1.754940E-01 B5 1.139279E+00 1.628943E+00 4.260817 E-01 9.988103E-02 B6 -1.895705E+00 -2.866646E+00 -7.723317E-01 -2.727887E-02 B7 2.038801 E+00 3.361366E+00 8.653963E-01 9.918190E-03 B8 -1.261999E+ 00 -2.283213E+00 -5.121469E-01 1.718917E-03 B9 4.012017E-01 8.208606E-01 1.579240E-01 -3.058149E-03 BIO -5.102848E-02 -1.221959E-01 -2.02768 IE-02 4.243912 E-04 Bll 〇.〇〇〇〇〇〇E+00 -1.687586E-04 -2.670469E-04 -4.864542E-04 B12 〇.〇〇〇〇〇〇E+00 -1.172487E-05 -3.982193E -05 3.273821E-04 B13 〇.〇〇〇〇〇〇E+00 -1.775743E-04 3.337636E-05 -4.592601 E-05 B14 〇.〇〇〇〇〇〇E+00 -6.714290E-05 9.490089 E-06 6.640027E-05 B15 〇.〇〇〇〇〇〇E+00 -7.687593E-05 1.004637E-05 -3.039940E-05 Bi6 〇.〇〇〇〇〇〇E+00 -3.326522E-05 2.7I8409E-06 -8.796722E-06 B17 〇.〇〇〇〇〇〇E+00 2.623364E-05 -5.884374E-08 7.192505E-06 B18 〇.〇〇〇〇 〇E + 00 3.374665E-05 -5.987887E-06 -2.648895E-06 B! 9 〇.〇〇〇〇〇〇E + 00 1.668709E-05 3.315589E-06 9.371893E-07

46 M399332 B2Q 0.000000! £+0〇!- -1.248660E-05 j -5.165636E-07] -1.435903E-07 | [Table 22] Example 8 Lens Information si . Π di nej vdj -3.5313 2.4439 1.53620 56.0 * 2 -3.1424 1.1730 3 (Aperture stop) 〇〇0.1696 *4 -164.4528 1.3210 1.59143 61.2 *5 -1.0499 0.2912 *6 -0.5649 0.3500 1.61963 25.5 7 -0.9150 0.5826 *8 2.6190 0.7012 1.53620 56.0 *9 2.3177 0.7752 10 〇〇0.5000 1.53620 64.1 11 〇〇0.4000 12 (image surface) 〇〇

[Table 23] Example 8 specification data Effective F value 2.85 Magnification 0.01554 Full viewing angle 96.03 Focal length 2.638

[Table 24] Example 8 Aspherical data si 1 2 4 5 K 4.737754E-01 -1.000002E+01 -7.617723E+13 -1.075269E+00 B3 1.996021E-03 -2.443466E-04 -5.999691 E-02 2.233925E-02 B4 2.322596E-02 1.785237E-03 4.716981E-01 -9.791910E-02 B5 -4.018721E-03 -2.688907E-03 -1.858526E+00 1.520998E-01 B6 -2.285436E-03 -1.423138 E-03 1.955361E+00 -2.141222E-01 47 M399332 B7 ! 5.762322E-04 1.743522E-03 1.766745E+00 4.871524E-02 B8 2.105668E-04 -2.783039E-04 -1.409681 E+00 1.104789E- 01 B9 -8.869777E-05 -1.026610E-04 -4.308107E+00 -2.426076E-01 B10 8.734796E-06 2.559589E-05 -3.818764E+00 1.247576E-01 Bll I 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 2.892067E+00 O.OOOOOOE+OO B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.088148E+01 O.OOOOOOE+OO B13 O.OOOOOOE+OO 〇.〇〇〇〇〇〇E+00 I.068003E+01 〇.〇〇〇〇〇〇E+00 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -3.105903E+00 〇.〇〇〇〇〇〇E+00 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 - 1.953890E+01 〇.〇〇〇〇〇〇E+00 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.698886E+0] O.OOOOOOE+OO B17 〇.〇〇〇〇〇〇E+00 O.OOOOOOE+OO 2.291448E+00 〇.〇〇〇〇〇〇E+00 B18 〇.〇〇〇〇〇〇E+00 0.000000E+00 2.193995E+ 01 O.OOOOOOE+OO B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.249985E+0I 〇.〇〇〇〇〇〇E-00 1 B20 〇.〇〇 〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.481236E+01 O.OOOOOOE+OO si 6 7 8 9 K -1.623126E+00 -2.672101E+00 -9.905045E+00 - 5.828126E+00 B3 1.617242E-01 1.840779E-01 1.405763E-01 7.260569E-02 B4 -4.776864E-01 -4.373709E-01 -2.806334E-01 -1.206337E-01 B5 1.367300E+00 1.538167E+ 00 4.291894E-01 4.080950E-02 B6 -1.922773E+00 -2.921787E+00 -7.836807E-01 -1.973329E-02 B7 1.805189E+00 3.359976E+00 8.58875 IE-01 1.289884E-02 B8 -1.344629 E+00 -2.277347E+00 -5.119263E-01 2.132678E-03 B9 5.562207E-01 8.208058E-01 1.587108E-01 -3.288745E-03 B10 -7.328296E-02 -1.211192E-01 -1.996832E- 02 2.9456 83E-04 Bll 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.73200 IE-04 -5.379438E-04 B12 〇.〇〇〇〇〇〇E+00 〇. 〇〇〇〇〇〇E+00 -1.983193E-05 3.187266E-04 B13 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 2.503695E-05 -2.79977 IE-05 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.57404 IE-05 6.921083E-05 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 9.045166E-06 -2.810294E-05 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -6.731350E-07 -8.873017E-06 B17 〇.〇 〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -3.206475E-06 7.004113E-06 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+ 00 -9.533752E-06 -2.841994E-06 B19 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 7.347667E-06 8.531609E-07 B20 〇.〇〇〇〇〇 〇E+00 〇.〇〇〇〇〇〇E+00 -1.336214E-06 -1.011035E-07

[Table 25] Example 9 Lens data 48 M399332 si ri di nej ^ dj *1 -3.2311 2.5817 1.59143 61.2 *2 -3.Π48 1.4245 3(孔光阑) 〇〇0.1791 *4 -183.2825 1.1082 1.53620 56.0 + 5 - 0.9250 0.2954 *6 -0.6504 0.3500 1.85503 23.8 7 -1.0258 0.7917 *8 2.6583 0.6021 1.51169 56.2 +9 2.3177 0.7839 10 〇〇0.5000 1.51825 64.1 11 〇〇0.4000 12 (image surface) 〇〇

[Table 26] Example 9 specification data Effective F value 2.87 Magnification 0.01554 Full viewing angle 96.04 Focal length 2.639 [Table 27]

Example 9 Aspherical data si 1 2 4 5 K 3.018101E-01 -9.999998E+00 -7.617723E+13 -1.441172E+00 B3 1.743707E-03 -4.293665E-03 -3.580930E-02 4.864709E-03 B4 2.318201E-02 -1.571070E-03 2.885188E-01 9.229771 E-03 B5 -3.753918E-03 9.500597E-04 -1.434H6E+00 -2.104323E-02 B6 -2.400539E-03 -1.946111E-03 1.642842 E+00 -3.408818E-01 B7 5.557062E-04 1.322678E-03 1.109882E+00 2.90782 丨E-01 B8 2.183553E-04 -2.340882E-04 -I.268950E+00 2.168876E-01 B9 -8.608408E -05 -3.150983E-05 -2.628448E+00 -5.952498E-01 B10 8.031172E-06 9.311796E-06 -3.161625E+00 2.928136E-01 Bll 〇.〇〇〇〇〇〇E+00 〇.〇 〇〇〇〇〇E+00 8.355867E-01 〇.〇〇〇〇〇〇E+00 B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 9.689968E+00 〇.〇〇〇〇〇〇E+00 49 M399332 B13 〇.〇〇〇〇〇〇E+00 0.000000£&gt;00 8.115881 E+00 〇.〇〇〇〇〇〇K+00 B14 〇.〇〇 〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -2.111453E+00 〇.〇〇〇〇〇〇E+00 B15 〇.〇〇〇〇〇〇E+00 〇. 〇〇〇〇〇E+00 -1.511410E+01 〇.〇〇〇〇〇〇E+00 B16 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 . -1.142633 E+01 〇.〇〇〇〇〇〇E-00 B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 6.282060H-01 〇.〇〇〇〇〇〇E ^OO B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.322868F.+01 〇.〇〇〇〇〇〇E+00 BI9 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 1.293592E+01 〇.〇〇〇〇〇〇E+00 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E +00 -1.182410E+01 〇.〇〇〇〇〇〇E+00 si 6 7 8 9 K -3.410142E+00 -4.266750E+00 -9.999972E+00 -4.736268E+00 B3 -1.974407E-02 6.607188E-02 1.321502E-01 7.839502E-02 B4 -3.240367E-01 -3.148628E-01 -2.234975E-01 -1.109372E-01 B5 I.4I172IE+00 1.512643 E+00 3.9I2904E-01 1.870554E- 02 -1.969225E+00 -2.966809E+00 -7.759655E-01 -6.498446E-03 Β7 1.655277E+00 3.369652E+00 8.592035E-01 1.264692 E-02 Β8 -1.312493E+00 -2.261248E+00 - 5.127647E-01 9.40273 IE-04 Β9 7.938530E- 01 8.210934E-01 1.588926E-01 -3.531950E-03 BIO -1.998173E-01 -1.238456E-01 -1.992062E-02 3.027912E-04 Bll 〇.〇〇〇〇〇〇E+00 〇.〇〇 〇〇〇〇E+00 -2.338205E-04 -5.007398E-04 B12 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -3.725136E-05 3.339900E-04 B13 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 2.317699E-05 -2.429267E-05 B14 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇 〇E+00 2.080237E-05 6.910716E-05 B15 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 1.602082E-05 -2.858907E-05 B16 〇.〇〇〇 〇〇〇E+00 〇.〇〇〇〇〇〇E+00 5.702290E-07 -9.193989E-06 B17 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 - 3.364059E-06 6.931178E-06 B18 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.01978 IE-05 -2.826734E-06 B19 〇.〇〇〇〇〇〇 E+00 〇.〇〇〇〇〇〇E+00 6.990544E-06 8.733435E-07 B20 〇.〇〇〇〇〇〇E+00 〇.〇〇〇〇〇〇E+00 -1.173022E-06 -1.044778E-07

The photographic lenses of Examples 1 to 9 were all four-piece structures. All of the four faces of the four lenses of the imaging lens of the first embodiment are aspherical, and their brief shapes are as follows: the first lens L1 is a lens having a negative meniscus shape with a concave surface facing the object side in the paraxial region, and the second lens L2 is The paraxial region is a lenticular lens, the third lens L3 is a negative meniscus lens having a convex surface toward the image side in the paraxial region, and the 50th M399332 4 lens L4 is a negative meniscus shape having a convex surface toward the object side in the paraxial region. Lens. In the photographic lenses of the second, third, fourth, fifth, and seventh embodiments, all of the four faces of the four lenses are aspherical, and the shape of the lens is the same as that of the first embodiment. In the photographic lens of the sixth embodiment, all of the four faces of the four lenses are aspherical, and the shape is substantially the same as that of the first embodiment except that the fourth lens L4 is a negative meniscus lens having a concave surface toward the object side in the paraxial region. . In the photographic lenses of the eighth and ninth embodiments, all of the four faces of the four lenses are aspherical, and the positive shape of the first lens L and the second lens L2 in the paraxial region is a positive meniscus lens having a concave surface toward the object side. Other than 'the same as in the first embodiment. The aberration of the imaging lens of the first embodiment is shown in Figs. 12(A) to 12(K). 12(A) to 12(D) show spherical aberration 'non-dot aberration, distortion (distortion aberration), and chromatic aberration of magnification (chromatic aberration of magnification), respectively. Fig. ι2 (ε) 〜 12 (H) show the lateral image chromatic aberration diagram 切2(1) to Fig. 1 2(Κ) in the tangential direction in each of the viewing angles, indicating the lateral chromatic aberration in the sagittal direction in each of the viewing angles. Spherical aberration diagram, magnification chromatic aberration diagram, lateral aberration diagram, 6 lines (wavelength 546 丨 nm) with a solid line, g line (wavelength 435.8 nm) with a dashed line, c line (wavelength 656.3 nm) with a one-dot line Said. The astigmatism diagram and the distortion aberration diagram are diagrams of the e-line, which are indicated by a solid line for the sagittal direction and a slash for the tangential direction. The Fno. of the spherical aberration diagram refers to the effective f value, and the ω of the other aberration diagram refers to the half angle of view. Similarly, the aberrations of the imaging lenses of Examples 2 to 9 are shown in Fig. 13(A) to Fig. 1j(k) 'Fig. 14(A) to 14(Κ)' Fig. 15(A) to Fig. 15 (Κ), 51 M399332 Fig. 6 (A) to Fig. 16 (Κ), Fig. 17 (A) to Fig. 17 (Κ), Fig. 18 (A) to Fig. 18 (Κ), Fig. 19 (A) to Fig. 19 (Κ), Fig. 20 (A) to Fig. 20 (Κ). The conditional expressions in the imaging lenses of Examples 1 to 9 (values corresponding to η to 〜 are shown in Table 28. The values shown in Table 28 are the reference wavelengths as the e-line, and the light is made based on the above-described specifications. Information at the time of incidence [Table 28] Conditional formula (1) (2) (3) (4) (5) (6) (7) (8) (9) D/f dl/D a at β 1 Ζ 4 1 / 1 Ζ5 IV 3 Z7m/f λ-dVi' Example 1 0.72 1.24 75.5 1.25 0.12 25.5 -0.093 10.8 0.07 Example 2 0.64 1.54 73.1 1.22 0.05 23.2 -0.095 23.7 ^.06 ' Example 3 0.74 0.69 72.2 1.09 0.17 23.8 0.152 1.5 074 Example 4 0.67 1.29 74.6 1.21 0.10 23.2 -0.106 11.4 0.09^ Example 5 0.73 1.33 75.5 1.29 0.11 23.2 -0.086 17.1 0.06 Example 6 1.37 1.42 75.0 1.69 0.26 30.1 -0.038^ ?3 6 0.09 Example 7 0.83 1.32 73.1 "1.25 0.32 18.9 -0.095 ρ 4 〇·&gt;5 Example 8 0.51 1.82 65.27 1.08 0.03 25.5 -0.084 -1 1 0 Example 9 0.61 1.61 68.29 1.11 0.06 23.8 -0.077 -0.6 j 0.07 i From the above information The photographic lens of the embodiment 丨~9 is composed of a small number of four lens segments, and the effective F value is as small as 2 7 to 2 9. The full-view angle 乂 is 100, and the wide angle is sufficiently achieved, and the aberrations are well corrected to have good optical performance and high resolution. Further, the present creation is not limited to the above embodiment, and various modifications can be made. The values such as the radius of curvature, the surface interval, the refractive index, and the Abbe number of each lens component are not limited to the values shown in the above numerical examples, and other values may be used. Next, an imaging device of the present embodiment will be described.简要21疋 A schematic configuration diagram of a photographing apparatus of an embodiment of the present invention is not provided. 52 M399332 The apparatus shown in Fig. 2A is an image reading apparatus for reading an image of a document, and is provided with: The reading lens 构成1 of the photographic lens of the embodiment, the original device table 13 that is the original 丨2 that reads the object, the light source 丨4 that emits illumination light toward the original 12, and the imaging element that captures the image of the original 丨2 15. However, in Fig. 21, the reading lens 丨H is summarized and the lens system is briefly shown. The photographic element 15 is an original that converts an optical image formed by reading the lens 为 into an electrical signal. For example, it is composed of a ccd bite CMOS (C〇mPlementary Metal 〇xide Semic〇nduet〇r) or the like. An optical element such as a cover glass for protecting the imaging element is preferably disposed between the reading lens 1A and the imaging element 15 as needed. Further, an optical element such as a document pressing glass or a filter for pressing the document 12 on the document placing table 1 3 can be disposed between the reading lens 1 and the document 12 as needed. The image reading device 丨0 is a reflective original type reading device. In the image reading device 10, illumination light is emitted from the light source 14 toward the original document 12, and the light transmission reading device 205 reflected by the original pupil 12 receives an image forming action, thereby imaging the shirt image of the original document 12 on the imaging element 15. The photography component 丨$ is taken as image information. Fig. 22 is a schematic block diagram showing an image reading apparatus 20 of another embodiment of the present invention. The image reading device 20 is also a reflective document type reading device. However, the mirror portion is disposed between the original document 12 and the reading lens to bend the optical path, thereby achieving a compact device and the same as shown in FIG. Image reading devices vary greatly. Further, in the image reading device 2, the original device table 23 composed of a transparent member that transmits light is used to cause the reflected light from the document bundle 2 to enter the reading lens ΜΪ99332 11 through the original device table 23. Further, in Fig. 22, the reading lens 11 is also collectively and briefly illustrated in the lens system.

The present invention has been described above by way of embodiments and examples, but the present invention is not limited to the above-described embodiments and examples, and various changes can be made. For example, the image reading apparatus of the reflective document type has been described above, but the present invention is not limited thereto, and may be applied to a transmissive document reading apparatus i for reading a document original such as a negative film or a positive film. The image reading device for transmitting the material can be realized by, for example, the image reading device 20 shown in FIG. 22, wherein the light source 14 is disposed on the document side, and the light projected from the light source 丨4 and transmitted through the document 12 passes through the document placing table. 2, the image is read and read, and the image of the original 12 is imaged on the photographing element 15 through the reading lens 11. 21 and FIG. 21 show an example in which the area sensor is used as the photographing element 15. However, the present invention is not limited to this 'may be the following structure', that is, the line stub is used as the photographing S piece, and the present creation is The % component is used as a scanning lens. In addition, the photographic lens of this creation is not only used as an image reading optical system.

The lens can be applied to other optical systems as well. The photographic lens of the present invention is not limited to an optical system that processes objects of a finite distance, but can also be used for an optical system that processes objects of infinite distance. Further, the photographic lens of the present invention is not limited to the visible light m, and may (4) handle the infrared optical system. Specifically, for example, the photographic lens of the present invention can be applied to a surveillance camera or a vehicle camera, a camera for authentication, or the like. When the camera of the present invention is used, the camera may be incident on the lens system from the angle of the angle of 5^M399332 of the design specification, and the light between the object side of the mirror system or each lens may be incident on the lens system. Hey. In order to prevent stray light from being set in a transparent manner for shielding excess light and according to the application of the photographic lens.., the infrared 绐逬H can be arranged on the object side or the image side of the lens system, ... A variety of extinguishing sheets, such as a stop light film, or a visible light cut filter, or a filter that is 防水% waterproof and coated with a layer of hydrophilic coating. Or the lens surface of any lens that can be used in the right eye of the photographic lens.

The same function as the various filters is applied. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a cross-sectional view showing the configuration of an imaging lens and an optical path according to an embodiment of the present invention. Figure B is a partial enlarged view for explaining the conditional expression (5). FIG. C is a cross-sectional view for explaining the aspherical shape of the third lens. Fig. D is a partially enlarged view for explaining the aspherical shape of the third lens and the conditional expression (7). Fig. 2 is a partially enlarged view showing the surface shape of a second lens of an imaging lens according to another configuration example of the present invention. Fig. 3 is a cross-sectional view showing the structure of an imaging lens and an optical path of an embodiment of the present invention. Fig. 4 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a second embodiment of the present invention. Fig. 5 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a third embodiment of the present invention. Fig. 6 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a fourth embodiment of the present invention. Fig. 7 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a fifth embodiment of the present invention. Fig. 8 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a sixth embodiment of the present invention. Fig. 9 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a seventh embodiment of the present invention. Fig. 丨〇 is a cross-sectional view showing the structure and optical path of the photographic lens of Example 8 of the present invention. Fig. 11 is a cross-sectional view showing the configuration of an imaging lens and an optical path of a ninth embodiment of the present invention. Fig. 12 (A) to Fig. 2 (κ) of Fig. 2 are aberration diagrams of the imaging lens of Example 1 of the present invention. Figs. 13(A) to 9(K) of Fig. 13 are aberration diagrams of the imaging lens of the second embodiment of the present invention. 14(A) to 14(Κ) of Fig. 14 are aberration diagrams of the imaging lens of Example 3 of the present invention. Figs. 15(A) to 15(Κ) of Fig. 15 are aberration diagrams of the imaging lens of Example 4 of the present invention. Fig. 16 (A) to Fig. 16 (Κ) of Fig. 16 are aberration diagrams of the imaging lens of Example 5 of the present invention. Fig. 1 &quot;7(Α) to Fig. 17(Κ) of Fig. 17 are aberration diagrams of the imaging lens of Example 6 of the present invention. 56 M399332 Fig. 1 8 (A) to Fig. 1 8 (Κ) are aberration diagrams of the imaging lens of Example 7 of the present creation. Fig. 19 (A) to Fig. 19 (Κ) of Fig. 19 are aberration diagrams of the imaging lens of Example 8 of the present invention. 20(A) to 20(Κ) of Fig. 20 are aberration diagrams of the imaging lens of Example 9 of the present invention. Fig. 21 is a schematic configuration diagram of an image reading apparatus according to an embodiment of the present invention. FIG. 22 is a schematic configuration diagram of an image reading apparatus according to another embodiment of the present invention. FIG. 2 [Explanation of main component symbols] 2 On-axis beam 3 Maximum angle of view of light East 4 Five-dimensional view of light beam 5, 15 Photographic element 9 Leading light 6 , 7,8 outermost light

丨〇, 20 image reading device 11 reading lens 12 original handle 13, 23 original placement Fig. 14 light source 26 mirror L1 first lens L2 second lens L3 third lens L4 fourth lens 光学 optical member St aperture stop Ζ光幸由卩6,卩7,Ρχ,Ρ交点α,β,Ύ Angle 57 M399332 G1 1st lens group G2 2nd lens group H2f, H4|, H6, H7, H8, Ηα, H/3, Hr Normal

58

Claims (1)

M399332 ..· $99217124*99年月月修正页6, the scope of application for patents: ^—A kind of photographic lens, which includes, in order from the object side: the second lens of the f-shaped shape facing the object side a negative third lens that has a meniscus surface facing the image side, and a normal line of the surface at a point on the object side surface of the fourth lens that passes through the surface of the object on the negative side of the fourth lens. The image side intersects the optical axis. 2. The photographic lens according to the above aspect of the invention, wherein the outermost ray of the on-axis beam passes through the surface of the second lens at a point on the surface of the second lens, and the normal of the surface is more than the surface The side intersects the optical axis. 3. If the photographic lens of the patent application or the second item is satisfied, the following conditional formula (丨) is satisfied: 0.25 &lt; D/f &lt; 4.0 (1); wherein D is the first The distance between the lens and the optical axis of the second lens, f is the focal length of the entire system. 4. An image pickup lens in which a first lens group and a second lens group are disposed in order from an object side, and the first lens group is constituted by a meniscus having a concave shape facing the object side, and the second lens group is the most A positive second lens is disposed on the object side, and a lens having a negative refractive power is disposed on the image side of the second lens group, and the second lens group includes at least one lens having at least one surface that is aspherical. And the following conditional formula (1) is satisfied: 0.25 &lt; D/f &lt; 4.0 ·.·(!); 59 M399332 .· * · * - ' t r.- ; . · ' , Λ1; Λ -« · s_ -· - - - where D is the distance between the first lens and the optical axis of the second lens; F is the focal length of the entire system. The photographic lens according to the fourth aspect of the invention, wherein the second lens group includes, in order from the object side, a negative third lens having a meniscus shape having four faces facing the image side, and a negative one. 4 lenses. 6. The photographic lens of claim i or item 2, which satisfies the following conditional expression (2): 〇.5&lt;dl/D&lt; 4.0 (2); wherein dl is The center thickness of the first lens; D is the distance between the second lens and the optical axis of the second lens. 7. The photographic lens of claim 2 or 2, which satisfies the following conditional expression (3): α &gt; 50. (3); where t, β is the principal ray of the light beam of the maximum viewing angle of the surface incident on the object side of the first lens, and the surface of the principal ray passing through the surface of the object side of the second lens The angle between the normals. 8. The photographic lens according to claim 1 or 2, which satisfies the following conditional expression (4): ... (4) 〇.8 &lt; a / β &lt; 3.0 wherein, M399332 rush.m. . . . - α is the chief ray of the light beam incident on the object-side surface of the first lens on the side of the first lens and the normal of the surface at the point where the principal ray passes through the surface on the first lens object side The angle between the chief ray of the light beam of the maximum angle of view emitted from the surface of the first lens image side and the normal of the surface of the light beam passing through the surface of the image side of the first lens angle. 9. The photographic lens of claim 2, wherein the second lens is biconvex and satisfies the following conditional expression (5): 〇·〇&lt;|Ζ4|/| Ζ5[&lt;0.5 (5); wherein Z4 is the point at which the outermost ray of the light beam having the largest viewing angle on the object side surface of the second lens passes through the surface and the object side surface of the second lens The distance in the optical axis direction between the tangential planes of the vertices; Z5 is the point at which the outermost ray of the light beam having the largest viewing angle on the image side of the second lens passes through the surface and the apex of the image side of the second lens The distance between the tangent planes in the direction of the optical axis. 10. The photographic lens of claim 1 or 2, wherein the outermost ray of the on-axis beam passes through a normal of the surface at a point on the object side surface of the second lens. The surface is further intersected by the object side and intersects the optical axis, and the following conditional expression (5) is satisfied: 〇·〇&lt;|Ζ41/|Ζ5|&lt;0.5 (5); wherein, 61 M399 犹—· Ar · , _ &gt; Τ '*· 3^ .-. Ζ4 is the point at which the outermost ray of the beam of the maximum viewing angle on the object side surface of the second lens of the έ2 lens passes through the surface and the object side of the second lens The distance between the tangent planes of the plane vertices in the optical axis direction; Ζ5 is the point at which the outermost rays of the light beam of the maximum viewing angle on the image side of the second lens of the second lens pass through the face and the image side of the second lens The distance between the tangent planes of the face vertices in the direction of the optical axis. 1 1 The photographic lens of claim 2 or 2, which satisfies the following conditional expression (6): ^ 3 &lt; 35 (6); wherein ^ is the third lens Abbe number on the d line. 12. The photographic lens of claim 3, wherein the surface of the third lens has an aspherical surface; the outermost ray of the on-axis beam passes through the image side of the third lens. The normal of the face at the point of the face intersects the optical axis at a second point on the object side of the face: the outermost light of the light beam of the five-dimensional view passes through the point of the image side of the third lens The normal line of the surface intersects the optical axis at the second point on the object side of the first point, or is parallel to the optical axis, or the third point on the image side of the image side of the third lens. Intersecting with the optical axis; the outermost rays of the five-dimensional view beam passing through the normal of the face at the point of the image side surface of the third lens intersect the optical axis at the second point, and the beam of the largest viewing angle is the most The normal line of the 62 M399332 plane at the point where the external light passes through the image side surface of the third lens intersects the optical axis on the object side or parallel to the optical axis, or is more than the third The image side surface of the lens intersects the optical axis by the image side; • the outermost light of the five-dimensional view beam passes through the point of the image side of the third lens The normal of the face is parallel to the optical axis or when the third point intersects the optical axis, the outermost light of the beam of the maximum viewing angle passes through the normal of the face at the point of the image side surface of the third lens The image side intersects the optical axis on the image side; and the following conditional expression (7) is satisfied: -0.25 &lt; Z7m / f &lt; -0.03 - (7); wherein Z 7 m is the third lens The longest distance in the optical axis direction between each point on the aspherical surface on the image side and the tangent plane of the vertex of the image side of the third lens; f is the focal length of the entire system. The photographic lens of claim 1 or 2, wherein the chief ray of the beam of the maximum viewing angle passes through the normal of the surface at the point of the object side surface of the fourth lens This face is further intersected by the image side and the optical axis, and satisfies the following conditional expression (8): 0. &lt; r &lt; 35° (8); where r is the angle between the normal of the face at the point where the principal ray of the light beam of the maximum viewing angle passes through the object-side face of the fourth lens and the optical axis. The photographic lens of claim 1 or 2, wherein the at least one lens is made of a glass material. The photographic lens according to the invention of claim 4, wherein the object side surface of the fourth lens is a convex surface. 16. The photographic lens of claim 2, wherein an aperture stop is disposed between the first lens and the second lens, and the following condition (9) is satisfied: 0.0&lt;;d3/f&lt; 0.5 ...(9); Where d3 is the interval on the optical axis between the aperture stop and the second lens; f is the focal length of the entire system. 17. The photographic lens of claim 2, wherein the first lens has at least one aspherical surface and is made of a polyolefin-based plastic material. 18. A photographic apparatus comprising the photographic lens of any one of clauses 1 to 17 of the patent application. Seven, the pattern (see next page): 64