223 results about "Large aperture" patented technology

The invention relates to a pre-compensation flexible assembling and adjusting mechanism of a large-diameter transmission reflector. The pre-compensation flexible assembling and adjusting mechanism comprises the large-diameter transmission reflector, a glue joint mandrel, an isolation telecentric flexible hinge, an isolation plate, a hooke flexible hinge, an adjusting flexible branch chain, an anti-rotation flexible branch chain, a back plate and a driving assembly. The large-aperture transmission reflector is provided with three blind holes for glue joint, and is connected with the isolation plate through three groups of glue joint mandrels and isolation telecentric flexible hinges, so that isolation of load deformation interference of the isolation plate is realized; the driving ends of the two adjusting flexible branch chains are correspondingly connected with two driving assemblies installed on the back plate, and the connecting ends of the adjusting flexible branch chains are connected with the isolation plate. One ends of the Hooke flexible hinges and the anti-rotation flexible branch chains are connected with the isolation plate, and the other ends are connected with the back plate; the device has the advantages of being simple in structural form, stable in movement and high in precision, meanwhile, the return clearance caused by axial load reversing under heavy loads can be avoided, the additional surface shape caused by assembling and adjusting stress is effectively isolated, and the additional surface shape caused by gravity is compensated.

The invention provides an optical lens, which comprises four lenses with focal power and sequentially comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with negative focal power and a sixth lens with negative focal power from an object side to an imaging surface along an optical axis, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the image side surface of the fourth lens is a convex surface; wherein the maximum field angle FOV of the optical lens and the real image height IH corresponding to the maximum field angle of the optical lens meet the following conditions: 35 degrees / mmlt; fOV / IHlt; 46 degrees / mm; the focal length f3 of the third lens and the focal length f4 of the fourth lens satisfy 0.5 lt; f3 / f4lt; and 0.8. According to the optical lens provided by the invention, through specific surface shape matching and reasonable focal power distribution, the lens has one or more advantages of an ultra-wide angle, a large aperture, high imaging quality, high collimation and the like.

The utility model provides a large-aperture small-volume optical imaging system and a camera module applying the same, which are composed of eight lenses, the first lens has positive focal power, the object side surface is a convex surface, the image side surface is a convex surface, the second lens has negative focal power, the object side surface is a convex surface, the image side surface is a concave surface, the third lens has positive focal power, the image side surface is a convex surface, and the fourth lens has negative focal power. The fourth lens has positive focal power, the object side surface is a concave surface, and the image side surface is a convex surface; the fifth lens has negative focal power, the object side surface is a concave surface; the sixth lens has positive focal power, the object side surface is a convex surface; the seventh lens has positive focal power, the object side surface is a convex surface, and the image side surface is a concave surface; according to the optical lens, aberration can be effectively corrected, so that the optical lens has better imaging quality, larger aperture size, smaller volume and better thermal stability, and the overall imaging quality is improved.

The present invention relates to a variable aperture device for a camera module. The device comprises: a base having a base aperture and a pair of blade guides; a pair of main blades guided by the blade guides; a pair of supplemental blades guided by the blade guides; a cover that is fixed to the base and has a cover aperture; and an actuator for moving the main blades and the supplemental blades relative to the base. Each of the main blades has a respective notch. The notches collaboratively define a central aperture and a fixed aperture. Each of the supplemental blades has a respective notch. The notches collaboratively define a minimum aperture and a maximum aperture.

The invention discloses a large-aperture telescope shafting angle detection method based on an arc grating encoder. The method comprises the following steps of: tensioning and mounting a linear grating ruler along the circumference of a shaft system turntable to form an arc grating body; n reading heads are uniformly arranged along the circumference of the rotation direction of the shaft system, the rotation position information of the shaft system is read, the effective range of the arc grating is calculated and converted into angle information, and the resolution of the arc grating is calculated; installing a full-circle grating, obtaining the detected shafting rotation position information, comparing the detected shafting rotation position information with the arc grating angle detection information, and verifying the correctness of the position information obtained by the arc grating. The arc grating is used for replacing an angle measurement grating, the measuring range and the resolution of the arc grating can be accurately obtained, the correctness of information obtained by the arc grating is verified through the concentric-shaft full-circle grating, the closed-loop effect does not exist, the machining difficulty is low, meanwhile, the length of the grating ruler can be selected according to the rotation range of a shaft system, and the measurement precision is high. And the installation and adjustment difficulty is reduced.

The wide-angle lens comprises a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged from an object plane to an image plane along an optical axis, the first lens is a glass spherical lens with negative focal power, the object side face of the first lens is a convex face, and the image side face of the first lens is a concave face. The second lens is a plastic aspheric lens with negative focal power, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface. The third lens is a plastic aspheric lens with positive focal power, the object side surface of the third lens is a concave surface, and the image side surface of the third lens is a convex surface. The fourth lens is a plastic aspheric lens with positive focal power, the object side surface of the fourth lens is a convex surface or a concave surface, and the image side surface of the fourth lens is a convex surface. The glass spherical surface and the plastic aspheric surface are matched and combined, the resolution is improved, the total axis length is smaller than 10.5 mm, the aperture F can reach 1.6, the field angle FOV can reach 183 degrees, the relative illumination can reach 50%, and the lens has the advantages of being large in aperture, ultra-large in field angle, small in size and high in illumination.

The invention discloses a large-aperture super-structure lens and refraction lens mixed optical system design evaluation method, which comprises the following steps: (1) carrying out ray tracing optimization design based on a phase surface of a large-aperture super-structure lens and a refraction lens to obtain a target phase equation of the phase surface of the super-structure lens; (2) establishing a metasurface unit database forming the metasurface lens, and arranging metasurface units to fit a target phase of the large-aperture metasurface lens; (3) evaluating the phase fitting degree and the imaging quality of the optical system by using a large-aperture super-structure lens full-wave simulation substitution method, and evaluating the imaging quality of the optical system by using a ray tracing method; evaluating the image quality indexes of the super-structure lens and the hybrid optical system, and if the image quality indexes meet the technical requirements, completing the design of the folding and super hybrid optical system; and if the technical requirements are not met, returning to the step (1) to carry out design optimization. By using the method provided by the invention, the imaging quality of the super-structure lens in the hybrid system can be effectively evaluated.

The invention discloses an optical lens, a camera module and an electronic device, which consider the requirements of miniaturization, large field angle, large aperture and high resolution, and sequentially comprise, from an object side to an image side along an optical axis, a first lens having negative refractive power, an object side surface and an image side surface thereof being a convex surface and a concave surface at a paraxial region; the second lens element with negative refractive power has an object-side surface and an image-side surface being concave in a paraxial region. The third lens element with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. A fourth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; the fifth lens element with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. The sixth lens element with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. A seventh lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof; the eighth lens element with positive refractive power has a convex object-side surface and a concave image-side surface in a paraxial region, respectively.

The present application relates to large aperture optical machine structure engineering analysis technical field, especially to a kind of gravity unloading point layout method of large space mirror, comprising the following steps: S1: the finite element analysis model of space mirror is established, and the discrete node surface shape data and unloadable point coordinate data are exported.S2: surface shape fitting is carried out, and surface shape accuracy is calculated.S3: its surface shape residual elevation diagram is drawn, and high residual point is identified.S4: the unloadable point coordinate of space mirror is obtained.S5: space mirror is supported using unloadable point, and its degree of freedom is constrained;Finite element analysis model is updated, and step S2 is repeated, and surface shape accuracy is calculated.S6: whether surface shape accuracy meets the requirements is judged, if not, then repeat step S3 to step S5;Until meet the requirements.The present application has the advantages that, through the gravity unloading point layout of space mirror, gravity unloading point can be more accurately fixed in flexible support mode or the like during processing, and the influence of gravity on surface shape accuracy is reduced.

Disclosed is a camera optical lens. The camera optical lens includes from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power; a sixth lens having a negative refractive power; wherein the camera lens satisfies the following conditions: 2.00≤f3 / f≤6.00; −2.00≤f5 / f6≤−0.79; −5.00≤R7 / R8≤−1.00; −0.90≤R9 / R10≤−0.20; 0.25≤d2 / d3≤1.00. The camera optical lens has good optical performance, and can meet the design requirements for large aperture, wide-angle and ultra-thin.

The application relates to a large-diameter high-power pseudo-Bessel beam generation method and a generation device, and belongs to the technical field of communication. The method comprises the following steps: S100, an electromagnetic beam output by a feed horn is propagated to a first reflecting surface, and a target pseudo-Bessel beam is reversely propagated to a second reflecting surface; S200, the electromagnetic beam is propagated to the second reflecting surface through the first reflecting surface, a phase difference on the second reflecting surface is obtained, and a deformation variable of the second reflecting surface is updated; S300, the target pseudo-Bessel beam is propagated to the first reflecting surface through the second reflecting surface, a phase difference on the first reflecting surface is obtained, and a deformation variable of the first reflecting surface is updated; and S400, steps S100 to S300 are repeated until the relative field distribution of the output electromagnetic beam and the target pseudo-Bessel beam reaches a stable state, and a large-diameter high-power pseudo-Bessel beam is obtained. The application can solve the technical problems of existing media loss and limited power capacity.

The application discloses a camera optical lens, which comprises seven lenses in sequence from the object side to the image side, i.e., a first lens with positive refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with positive refractive power, a sixth lens and a seventh lens with negative refractive power; the central curvature radius R7 of the object side of the fourth lens, the central curvature radius R8 of the image side of the fourth lens, the axial distance d2 from the image side of the first lens to the object side of the second lens, the axial distance d4 from the image side of the second lens to the object side of the third lens, the axial distance d6 from the image side of the third lens to the object side of the fourth lens, the axial thickness d9 of the fifth lens, the axial distance d10 from the image side of the fifth lens to the object side of the sixth lens satisfy the following relations: 9.98 <= d9 / d10 <= 20.02; 0.50 <= R7 / R8 <= 7.00; 0.50 <= (d2+d6) / d4 <= 1.50. The camera optical lens has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thin.

The application discloses an optical system and a VR glasses, the optical system has an object side and an image side which are oppositely arranged along the extension direction of the optical axis, and comprises a first lens, a second lens and a third lens which are sequentially arranged from the image side to the object side, wherein: the first lens is coated with a half-reflective and half-transmissive film on the end face close to the image side, and is coated with an AR (anti-reflective) film on the end face close to the object side; the second lens is coated with an AR film on the end face close to the image side, and is glued with a quarter-wave plate film on the end face close to the object side, and the end face of the quarter-wave plate film away from the second lens is glued with a linear polarization film; and the two end faces of the third lens close to the object side and the image side are both coated with an AR film. The application aims to provide an optical system with high image quality, a large field of view, a large aperture and less stray light, so that the user can obtain a better viewing effect.

The application relates to the field of optical lenses, and discloses a camera optical lens which is composed of seven lenses, and the seven lenses are sequentially arranged from the object side to the image side as follows: a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with refractive power, a fifth lens with positive refractive power, a sixth lens with positive refractive power, and a seventh lens with negative refractive power; the dispersion coefficient of the first lens is v1, the refractive index of the third lens is n3, and the following relationship is met: 58.00 <= v1 <= 82.00; 1.69 <= n3 <= 2.20. The camera optical lens provided by the application has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thin.

The application discloses a 4K thermal stable DVR optical imaging system, which comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens, a seventh lens, a filter, a protective glass and an image plane arranged in the direction from the object side to the image side. Through the reasonable use of the lenses with specific shapes and the definition of the optical power of each lens, the application realizes a large target surface design, the maximum target surface is greater than or equal to 9.56 mm, can match a 1 / 1.8 chip IMX728, a large aperture design F1.8, and can realize the recording and identification of objects on both sides of the road in a dark environment; the FOV is increased to 171 degrees, a large-angle picture can be shot, and the field of view is improved.

The application relates to the field of optical lenses and discloses a camera optical lens which comprises seven lenses in sequence from the object side to the image side, namely a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens, a fifth lens with positive refractive power, a sixth lens with negative refractive power and a seventh lens with negative refractive power; wherein the focal length of the camera optical lens is f, the focal length of the fourth lens is f4, the central curvature radius of the object side of the seventh lens is R13, the central curvature radius of the image side of the seventh lens is R14, the on-axis thickness of the sixth lens is d11, the on-axis distance from the image side of the sixth lens to the object side of the seventh lens is d12, and the following relationships are met: -7.00<=f4 / f<=10.00; 0.70<=d11 / d12<=1.50; -10.00<=R13 / R14<=-1.00. The camera optical lens has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thin.

Provided is an imaging optical system that is compatible with a large image sensor, and achieves both a large aperture ratio and good aberration correction in consideration of weight reduction of a focus lens that is mainly driven in focusing. An imaging optical system consists of, in order from an object side: a front group GrF having a positive refractive power; a first focus group GrFC1 having a negative refractive power; a second focus group GrFC2 having a negative refractive power; and a rear group GrR having a positive refractive power. During focusing from infinity to a short distance, the front group GrF and the rear group GrR are fixed with respect to an image surface, the first focus group GrFC1 moves to the image side. The second focus group GrFC2 moves to the object side, and specific conditional expressions are satisfied.

The application discloses a teleconverter lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, a twelfth lens, a thirteenth lens, a fourteenth lens and a fifteenth lens arranged in sequence along an optical axis from an object plane to an image plane, wherein the first lens and the second lens are cemented, the third lens and the fourth lens are cemented, the seventh lens and the eighth lens are cemented, the tenth lens and the eleventh lens are cemented, and the thirteenth lens and the fourteenth lens are cemented. The teleconverter lens provided by the embodiment of the application realizes multiple performances such as 3.36 times high magnification, F2.63 large aperture and distortion lower than 0.6% through the structural design of 15 lenses and the matching of the focal power of each lens, and meanwhile, the total length of the teleconverter lens is controlled within 105 mm, so that the telephoto experience with high performance and portability is provided for users.

To obtain an optical system having high optical performance by satisfactorily correcting various aberrations including chromatic aberration of magnification in spite of a wide angle and a large aperture ratio.SOLUTION: The optical system includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit, a third lens unit having a positive refractive power, and a fourth lens unit having a negative refractive power, and an interval between adjacent lens units changes during focusing and satisfies a predetermined condition.SELECTED DRAWING: Figure 1

The application discloses an optical lens, a camera module and a terminal device. The optical lens has six lenses with refractive power, and sequentially comprises, from the object side to the image side along the optical axis: a first lens with negative refractive power, the object side surface and the image side surface of which are convex and concave respectively at the near optical axis; a second lens with negative refractive power, the image side surface of which is concave at the near optical axis; a third lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis; a fourth lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis; a fifth lens with negative refractive power, the object side surface and the image side surface of which are both concave at the near optical axis; and a sixth lens with positive refractive power, the object side surface and the image side surface of which are both convex at the near optical axis. The optical lens satisfies the following relationship: 160°≤FOV≤190°; 1.8≤FNO≤2.2. The optical lens meets the requirements of miniaturization, large aperture and wide field of view.

The application relates to the field of optical lenses, and discloses a camera optical lens comprising five lenses, which are sequentially arranged from the object side to the image side as follows: a first lens with positive refractive power, a second lens with positive refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, and a fifth lens with negative refractive power; and the following relations are satisfied: 0.12 <= d1 / TTL <= 0.20; 5.00 <= R3 / R4 <= 15.00; and -1.30 <= (R5+R6) / (R5-R6) <= -1.00. The camera optical lens provided by the application can meet the design requirements of large aperture, ultra-thinning, and wide-angle.

The application provides a large-aperture large-relative-illumination scanning lens, comprising a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens and a photosensitive chip arranged in sequence along an optical axis from an object plane to an image plane, wherein the first lens to the tenth lens are all glass lenses, focal lengths of the first lens to the tenth lens are negative, negative, positive, positive, negative, positive, negative, positive, positive and positive in sequence, the first lens, the second lens and the third lens form a fixed group, and the fourth lens to the tenth lens form a focusing group, wherein the floating focusing mode is adopted to optimize distortion and magnification, and small distortion and wide magnification are achieved; through relative movement of the focusing group, clear focusing of a working distance of 150mm-600mm is realized, and the application requirements of wide measurement range, large aperture and low distortion can be met, and the light aperture can also be flexibly adjusted.

This invention relates to the field of optical lenses and discloses a camera optical lens composed of seven lenses. The seven lenses, from the object side to the image side, are sequentially arranged as follows: a first lens with positive refractive power, a second lens with negative refractive power, a third lens, a fourth lens, a fifth lens with positive refractive power, a sixth lens with positive refractive power, and a seventh lens with negative refractive power. The axial thickness of the first lens is d1, the edge thickness of the first lens is ET1, the axial thickness of the fifth lens is d9, the axial thickness of the sixth lens is d11, and the total optical length of the camera optical lens is TTL, satisfying the following relationships: 3.00≤d1 / ET1≤5.00; 0.00≤d9 / TTL≤0.10; 0.00≤d11 / TTL≤0.10. The camera optical lens provided by this invention has good optical performance while meeting the design requirements of large aperture, wide angle, and ultra-thin design.

The invention provides a prime lens. The prime lens comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with focal power, a fourth lens with positive focal power, a fifth lens with focal power, a sixth lens with focal power and a seventh lens with focal power which are sequentially arranged from the object space to the image space along the optical axis. The first lens has focal power, the second lens has focal power, the eighth lens has focal power, the ninth lens has positive focal power, the prime lens comprises five glass spherical lenses and four plastic aspheric lenses, the second lens, the third lens or the seventh lens, and the eighth lens and the ninth lens are plastic aspheric lenses. The aperture of the prime lens provided by the invention is 0.864, the maximum field angle is 140.24 degrees, the imaging target surface phi is greater than or equal to 9.2 mm, the prime lens can be matched with a 1 / 1.8 inch chip, and the requirements of large aperture and large field angle are met.

This invention provides an optical lens comprising seven lenses, arranged sequentially along the optical axis from the object side to the image plane: a first lens with negative optical power, its object side being convex and its image side being concave; a second lens with negative optical power, its object side being concave; a third lens with positive optical power, its object side being convex and its image side being convex; a fourth lens with positive optical power, its object side being convex and its image side being concave; a fifth lens with positive optical power, its object side being convex near the optical axis and its image side being convex; a sixth lens with negative optical power, its object side being concave; and a seventh lens with negative optical power, its object side being convex near the optical axis and its image side being concave near the optical axis. The optical lens provided by this invention, through a specific combination of surface shapes and a reasonable allocation of optical power, enables the lens to possess one or more advantages such as a large field of view, a large aperture, a large image height, high pixel count, and high image quality.

The utility model discloses a large-aperture half-frame lens, which belongs to the technical field of optical lenses and comprises a first lens group, a second lens group, a third lens group and a fourth lens group which are sequentially arranged from an object side to an image side along an optical axis. The focal lengths of all the lens groups meet the following conditional expressions: 1.2 < f (G1) / f (G2-G4) < 3.7; -3.8 < f (G3) / f (G2-G4) <-1.3; 1.6 < f (G1) / f < 4.8. According to the large-aperture half-frame lens, various aberrations of various wave bands are corrected, the central field of view and the edge field of view have enough resolution, the large-aperture half-frame lens has the advantages of being simple in structure, small in size and large in aperture, and the high resolution of imaging with the object distance from infinity to close distance can be achieved.

An optical system, a camera module, and an electronic device are disclosed. The optical system comprises, along the optical axis from the object side to the image side, lenses numbered eight to one, each possessing refractive power. Lenses three, four, five, six, and eight possess negative refractive power, while lenses four, four, five, six, and eight possess positive refractive power. The image-side surfaces of the first, second, fourth, seventh, and eighth lenses are concave near the optical axis, while the object-side surfaces of the first, third, fourth, fifth, sixth, and eighth lenses are convex near the optical axis. By rationally designing the surface shape and refractive power of each lens in the optical system, it is beneficial to meet the requirements of miniaturization, large aperture, high resolution, high illumination, and a wide field of view.

A four-part optical lens with a large aperture, comprising a first lens (10) with a positive light focus, a second lens (20) with a negative light focus, a third lens (30) with a positive light focus, and a fourth lens (40) with a positive light focus, arranged sequentially, characterized in that the two surfaces of the first lens (10) are each an S1 surface (11) and an S2 surface (12), wherein the two surfaces of the second lens (20) are each an S3 surface (21) and an S4 surface (22), wherein the two surfaces of the third lens (30) are each an S5 surface (31) and an S6 surface (32), wherein the two surfaces of the fourth lens (40) are each an S7 surface (41) and an S8 surface (42), wherein the S1 surface (11), the S2 surface (12), the S3 surface (21), S4 surface (22), S5 surface (31), S6 surface (32), S7 surface (41) and S8 surface (42) are arranged one after the other,wherein the side of the S8 surface (42) facing away from the S7 surface (41) is provided with an S9 surface (50), wherein an aperture diaphragm (60) is arranged on one side of the S1 surface (11) or between the S2 surface (12) and the S3 surface (21), wherein the S7 surface (41) is provided with a vignetting diaphragm (70), wherein the S1 surface (11), the S2 surface (12), the S5 surface (31), the S6 surface (32) and the S7 surface (41) are convex surfaces, wherein the S4 surface (22) is a concave surface, , where the distance between the aperture stop (60) and the object focus of the lens |ST - F obj | is, where the equivalent focal length of the lens is f0, |ST - F obj | < 0.7f0, where the free aperture d of the S1 surface (11) to the S8 surface (42) satisfies the following relationship: d i > 0.9d j , i < j, where i is an integer from 1 to 7 and j is an integer from 2 to 8, wherein the radius of curvature of the S3 surface (21) is r3, wherein the radius of curvature of the S4 surface (22) is r4, |r4| < |r3|, wherein the radius of curvature of the S7 surface (41) is r7, wherein the radius of curvature of the S8 surface (42) is r8, |r7| < |r8|, wherein the equivalent focal length of the fourth lens (40) is greater than the equivalent focal length of the third lens (30), wherein the equivalent focal length of the fourth lens (40) is greater than the equivalent focal length of the first lens (10), where the center distance between the S6 surface (32) and the S7 surface (41) G 67 is, where the center distance between the S2 surface (12) and the S3 surface (21) G 23 is, G 67 < G 23 .

Provided is a camera optical lens, including five lenses. An on-axis distance from an image side surface of the second lens to an object side surface of the third lens is d4, an on-axis distance from an image side surface of the third lens to an object side surface of the fourth lens is d6, a central curvature radius of an object side surface of the second lens is R3, a central curvature radius of the image side surface of the second lens is R4, a central curvature radius of an object side surface of the fifth lens is R9, and a central curvature radius of an image side surface of the fifth lens is R10, and following relational expressions are satisfied: 3.00≤d6 / d4≤6.00; −2.00≤R9 / R10≤−0.80; and 1.70≤(R3+R4) / (R3−R4)≤2.50. The camera optical lens has excellent optical characteristics, as well as large aperture and ultra-thin characteristics.