WO2017170284A1 - Système optique grand angle, unité d'objectif et dispositif d'imagerie - Google Patents

Système optique grand angle, unité d'objectif et dispositif d'imagerie Download PDF

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Publication number
WO2017170284A1
WO2017170284A1 PCT/JP2017/012181 JP2017012181W WO2017170284A1 WO 2017170284 A1 WO2017170284 A1 WO 2017170284A1 JP 2017012181 W JP2017012181 W JP 2017012181W WO 2017170284 A1 WO2017170284 A1 WO 2017170284A1
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lens
wide
optical system
angle optical
angle
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PCT/JP2017/012181
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English (en)
Japanese (ja)
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中村健太郎
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コニカミノルタ株式会社
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Priority to JP2018509276A priority Critical patent/JP6725888B2/ja
Publication of WO2017170284A1 publication Critical patent/WO2017170284A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Definitions

  • the present invention relates to a wide-angle optical system for imaging suitable for a vehicle-mounted camera and the like, a lens unit having such a wide-angle optical system, and an imaging apparatus.
  • CMOS and CCD have been miniaturized and the number of pixels has been increasing, and image pickup devices equipped with these image sensors have also been miniaturized.
  • an imaging lens mounted on this type of imaging device is required to have both good optical performance and downsizing.
  • in-vehicle and surveillance camera applications are required to be small, high-performance, inexpensive, and wide-angle, and there is a tendency to place importance on environmental resistance assuming outdoor use.
  • Patent Documents 1 and 2 propose a wide-angle imaging lens composed of five lenses having a power arrangement starting from negative, negative and positive in order from the object side as an imaging lens mounted on a vehicle-mounted camera. Yes.
  • Patent Document 1 it is proposed to make a wide-angle imaging lens that is easy to manufacture and has high performance by cementing a negative fourth lens and a positive fifth lens and optimizing the shape of the cemented surface. It is hard to say that the sensor is small enough.
  • Patent Document 2 proposes a configuration that satisfies the small size, high performance, and wide angle by optimizing the focal length of the front group and the focal length of the rear group, with the fourth lens being positive and the fifth lens being negative.
  • the image side surface of the first lens is close to the processing limit around the effective diameter, and considering the margin of the optical surface in consideration of assembly errors, etc., the lens is extremely difficult to process, so it is inexpensive. It's hard to say.
  • the present invention has been made in view of the above background art, and an object thereof is to provide a wide-angle optical system for imaging that is small in size, high in performance, and wide in angle but low in cost.
  • a wide-angle optical system reflecting one aspect of the present invention is made of glass having a convex shape on the object side and a concave shape on the image side in order from the object side, and both spherical surfaces.
  • the lens substantially includes a fifth lens having an aspheric surface on at least one surface, and satisfies the following conditional expression.
  • a lens unit reflecting one aspect of the present invention includes the above-described wide-angle optical system and a lens holder that holds the wide-angle optical system.
  • an imaging apparatus reflecting one aspect of the present invention includes the above-described lens unit and an imaging element that projects an image by the lens unit.
  • FIG. 2 is a cross-sectional view of an imaging lens and the like according to Embodiment 1.
  • FIG. FIG. 6 is a cross-sectional view of an imaging lens and the like of Example 2. It is a figure explaining a lens unit etc. provided with the wide angle optical system of a 2nd embodiment.
  • FIG. 1 is a cross-sectional view showing an imaging apparatus 100 according to the first embodiment of the present invention.
  • the imaging apparatus 100 includes a camera module 30 for forming an image signal, and a processing unit 60 that exhibits the function of the imaging apparatus 100 by operating the camera module 30.
  • the camera module 30 includes a lens unit 40 that incorporates the imaging lens 10 and a sensor unit 50 that converts a subject image formed by the imaging lens 10 into an image signal.
  • the lens unit 40 includes an imaging lens 10 that is a wide-angle optical system and a lens holder 41 in which the imaging lens 10 is incorporated.
  • the imaging lens (wide-angle optical system) 10 is a super-wide-angle lens or a fish-eye lens, and is composed of five lenses L1 to L5.
  • the lens holder 41 is made of resin or the like, and stores and holds the lens or the like inside.
  • the lens holder 41 has an opening OP1 through which light from the object side is incident and an opening OP2 through which light is emitted to the image side.
  • the total angle of view of the imaging lens (wide-angle optical system) 10 is 160 ° or more. Since the radial size of the optical system tends to increase as the angle of view increases, the details will be described later.
  • the total angle of view is 160 ° or more. In the case of extremely increasing the size, the effect of miniaturization and the like is particularly exhibited.
  • the total angle of view of the imaging lens 10 is preferably 170 ° or more.
  • the first to fourth lenses L1 to L4 are in contact with the inner peripheral surface 41a of the lens holder 41 at the side surfaces (that is, the edges) of the flange portions or the outer peripheral portions, Positioning in the direction perpendicular to the axis AX is performed.
  • the side surface 4a of the flange portion (outer peripheral portion) 3a is in contact with the inner peripheral surface 41b of the portion where the diameter or inner diameter of the lens holder 41 is enlarged.
  • the first to fifth lenses L1 to L5 are housed in the lens holder 41 without using a spacer.
  • the first to fifth lenses L1 to L5 are in contact with only the front and rear lenses, the aperture stop ST, the light-shielding stop FS, or the lens holder 41 at the annular flange portion extending substantially perpendicular to the optical axis AX, and are joined. They are joined together by the agent.
  • the first to fifth lenses L1 to L5 excluding the object side of the first lens L1 and the image side of the fifth lens L5 are positioned relative to each other, that is, in the optical axis AX direction.
  • the portion is formed in a region different from the optical surface which is a curved surface.
  • the inter-lens facing surface 3a2 on the image side of the flange portion 3a of the first lens L1 is in contact with only the inter-lens facing surface 3b1 on the image side of the flange portion 3b of the second lens L2.
  • the image-side facing surface of the second lens L2 is in contact with only the light-shielding stop FS.
  • the object-side facing surface of the third lens L3 is in contact with only the light-shielding stop FS, and the image-side facing surface of the third lens L3 is in contact with only the aperture stop ST.
  • the object-side facing surface of the fourth lens L4 is in contact with only the aperture stop ST, and the image-side facing surface of the fourth lens L4 is in contact with only the object-side facing surface of the fifth lens L5.
  • the fourth lens L4 and the fifth lens L5 are configured to be fitted on the outer periphery by the outer periphery fitting portion 5a provided on the flange portion 3e of the fourth lens L4. In this way, by adopting a structure in which the lenses are fitted on the outer periphery, relative movement in the direction perpendicular to the optical axis AX of both lenses L4 and L5 is limited.
  • a step 6d is formed on the side surface 4a of the flange portion 3a, and an annular space is formed between the first lens L1 and the lens holder 41.
  • An elastic waterproof member 2a such as an O-ring, can be inserted into the annular space.
  • the waterproof member 2a includes the lower side surface 1a of the side surface 4a of the flange portion 3a and the inner periphery of the lens holder 41.
  • the lens holder 41 is hermetically sealed by being sandwiched between the surface 41b.
  • the waterproof member 2a can prevent a force along the optical axis AX from being applied to the first lens L1 and the like.
  • the sensor unit 50 includes a solid-state imaging device 51 that photoelectrically converts a subject image formed by the imaging lens (wide-angle optical system) 10, a substrate 52 that supports the solid-state imaging device 51, and the solid-state imaging device 51 via the substrate 52. And a sensor holder 53 for holding the sensor.
  • the solid-state image sensor 51 is, for example, a CMOS image sensor.
  • the substrate 52 includes wiring for operating the solid-state imaging device 51, peripheral circuits, and the like.
  • the sensor holder 53 is formed of a resin or other material, and supports the filter F so as to face the solid-state image sensor 51 as well as position the solid-state image sensor 51 with respect to the optical axis AX.
  • the sensor holder 53 is fixed in a state of being positioned so as to be fitted to the lens holder 41 of the lens unit 40.
  • the lens unit 40 and the sensor unit 50 are integrally fixed.
  • the present invention is not limited to this, and for example, the lens unit 40 can move with respect to the sensor unit 50 to enable focusing.
  • the solid-state imaging device (imaging device) 51 includes a photoelectric conversion unit 51a as an imaging surface I or a detection surface, and a signal processing circuit (not shown) is formed in the periphery thereof. Pixels, that is, photoelectric conversion elements are two-dimensionally arranged in the photoelectric conversion unit 51a.
  • the solid-state imaging device 51 is not limited to the above-described CMOS type image sensor, and may be a device incorporating another imaging device such as a CCD.
  • the processing unit 60 includes an element driving unit 61, an input unit 62, a storage unit 63, a display unit 64, and a control unit 68.
  • the element drive unit 61 outputs YUV and other digital pixel signals to an external circuit (specifically, a circuit associated with the solid-state image sensor 51), a voltage for driving the solid-state image sensor 51 from the control unit 68,
  • the solid-state imaging device 51 is operated by receiving a clock signal.
  • the input unit 62 is a part that accepts user operations
  • the storage unit 63 is a part that stores information necessary for the operation of the imaging apparatus 100, image data acquired by the camera module 30, and the like. This is a part for displaying information to be presented to the user, captured images, and the like.
  • the control unit 68 comprehensively controls operations of the element driving unit 61, the input unit 62, the storage unit 63, and the like, and can perform various image processing on image data obtained by the camera module 30, for example. .
  • the imaging device 100 can be mounted on devices for various uses such as an in-vehicle camera and a surveillance camera.
  • the imaging lens 10 illustrated in FIG. 1 has the same configuration as the imaging lens 11 of Example 1 described later.
  • the illustrated imaging lens (wide-angle optical system) 10 is a retrofocus type optical system, and has a five-lens configuration having power arrangements starting from negative, negative, and positive in order from the object side. More specifically, the imaging lens 10 includes, in order from the object side, a glass negative spherical first lens L1 having a convex shape on the object side and a concave shape on the image side, and an image having an aspheric surface on at least one surface.
  • a negative second lens L2 having a concave shape on the side, a light-shielding stop FS, a positive third lens L3, an aperture stop ST, a fourth lens L4 having at least one aspheric surface, and at least one surface.
  • a fifth lens L5 having an aspherical surface.
  • the imaging lens 10 can be made cheaper by making the first lens L1 a glass lens having a spherical surface on both sides that is easy to process.
  • the second to fifth lenses L2 to L5 are plastic or resin lenses. Thereby, the imaging lens 10 can be made lightweight and inexpensive.
  • the second, fourth, and fifth lenses L2, L4, and L5 may be plastic or resin lenses, and the third lens L3 may be a glass lens.
  • focus shift due to temperature change becomes a problem.
  • focus shift can be more effectively suppressed.
  • the focus shift is about +24 ⁇ m / + 30 ° C., for example, and when the third lens L3 is a glass lens, the focus shift is about +2 ⁇ m / + 30 ° C. for example.
  • the first lens L1 is a negative aspherical lens having a convex meniscus shape with its object side surface L1S1 convex and paraxially convex toward the object side.
  • the second lens L2 is a negative aspherical lens having a convex meniscus shape with its object side surface L2S1 convex and paraxially convex toward the object side.
  • the third lens L3 is a positive aspherical lens having a biconvex shape with a paraxial axis.
  • the fourth lens L4 is a negative aspherical lens having a convex shape on the object side surface, a concave shape on the image side surface, and a convex meniscus shape on the paraxial side.
  • the fifth lens L5 is a positive aspheric lens having a biconvex shape in paraxial. Further, the fourth lens L4 and the fifth lens L5 are cemented. By configuring the fourth and fifth lenses L4 and L5 in this way, chromatic aberration can be suitably corrected.
  • the maximum surface angle within the effective diameter of the image side surface L2S2 is 60 ° or more.
  • the surface angle of the image side surface L2S2 is an angle formed by the normal of the image side surface L2S2 with respect to the optical axis AX. Since the first lens L1 is made of glass and there is a limit to the negative power that the first lens L1 can have due to processing restrictions, the second lens L2 is large in order to suitably correct field curvature in the entire system. It will have negative power. Therefore, it is desirable that the maximum surface angle of the image side surface L2S2 of the second lens L2 is as large as described above.
  • the imaging lens (wide-angle optical system) 10 satisfies the following conditional expressions (1) to (4). 1.10 ⁇ D14 / Hmax ⁇ 1.80 (1) 0.40 ⁇ D23 / Hmax ⁇ 0.70 (2) 4.0 ⁇ TTL / Hmax ⁇ 5.5 (3) 4.0 ⁇ ⁇ 1 / Hmax ⁇ 5.5 (4)
  • the value D14 is a distance on the optical axis AX from the object side surface L1S1 of the first lens L1 to the image side surface L2S2 of the second lens L2
  • the value D23 is a second value from the image side surface L1S2 of the first lens L1.
  • the value Hmax is the maximum image height
  • the value TTL is the total optical length
  • the value ⁇ 1 is the optical surface of the object side surface L1S1 of the first lens L1. Is the diameter.
  • the maximum image height corresponds to half of the diagonal length of the detection surface or the imaging surface I of the solid-state imaging device 51.
  • the optical surface diameter means the diameter of a region where a spherical surface or an aspheric surface exists.
  • the expression (1) By satisfying both of (2) and (2), it is possible to ensure suitable optical performance with an inexpensive wide-angle optical system that uses a glass spherical lens that is easy to process as the first lens L1 with a small configuration of five lenses. Can do.
  • the first and second lenses L1, L1 and L2 are satisfied by satisfying the range of the formula (1) while adopting the configuration of the low-profile lens as the formula (3).
  • the distance between the first and second lenses L1 and L2 is appropriately set by satisfying the range of the formula (2) while adopting the configuration of the small-diameter lens as the formula (4).
  • the optical performance related to aberration, peripheral light amount ratio, etc. can be secured.
  • the imaging lens (wide-angle optical system) 10 further satisfies the following conditional expression (5). 0.65 ⁇ (D23 + SAG3) /SAG2 ⁇ 1.0 (5)
  • the value D23 is the distance on the optical axis AX from the image side surface L1S2 of the first lens L1 to the object side surface L2S1 of the second lens L2
  • the value SAG2 is the optical surface of the image side surface L1S2 of the first lens L1.
  • the SAG amount at the end, and the value SAG3 is the SAG amount at the optical surface end of the object side surface L2S1 of the second lens L2.
  • an optical surface means a region where a spherical surface or an aspheric surface exists, and an end of the optical surface means an outer edge of a region where a spherical surface or an aspheric surface exists and is not necessarily effective. It does not mean the periphery of the diameter.
  • the imaging lens (wide-angle optical system) 10 further satisfies the following conditional expressions (6) and (7). 3.0 ⁇ R1 / R2 ⁇ 3.5 (6) 1.85 ⁇ ⁇ 2 / R2 ⁇ 1.95 (7)
  • the value R1 is the radius of curvature of the object side surface L1S1 of the first lens L1
  • the value R2 is the radius of curvature of the image side surface L1S2 of the first lens L1
  • the value ⁇ 2 is the image side surface of the first lens L1. This is the optical surface diameter of L1S2.
  • the sealing means such as an O-ring can be easily inserted into the flange portion 3a or the outer peripheral portion of the first lens L1, thereby improving environmental resistance. It can be set as the outstanding structure.
  • the value R1 / R2 of the above formula (6) is made equal to or higher than the lower limit, the difference in curvature is prevented from becoming small and the edge is sufficiently thick, but the increase in the outer diameter is suppressed and the miniaturization is achieved. be able to.
  • the value to be equal to or lower than the upper limit of the formula (6) and setting the value ⁇ 2 / R2 of the formula (7) to be equal to or higher than the lower limit it is possible to suitably correct the curvature of field.
  • it is possible to be equal to or lower than the upper limit of the above formula (7) it is possible to avoid being close to the processing limit of spherical polishing of glass, and it is possible to suppress inaccuracy and cost increase.
  • the imaging lens (wide-angle optical system) 10 further satisfies the following conditional expression (8).
  • D12 is the distance on the optical axis AX from the object side surface L1S1 to the image side surface L1S2 of the first lens L1, that is, the center thickness of the first lens L1
  • the value f is the entire system, that is, the imaging lens 10.
  • the focal length When the center thickness of the first lens L1 made of glass satisfies the above formula (8), a suitable negative power can be obtained while ensuring workability.
  • the imaging lens (wide-angle optical system) 10 further satisfies the following conditional expression (9).
  • the value f12 is the combined focal length of the first and second lenses L1 and L2
  • the value f345 is the combined focal length of the third to fifth lenses L3 to L5.
  • the imaging lens (wide-angle optical system) 10 further satisfies the following conditional expression (10). 0.20 ⁇ ⁇ 4 / ⁇ 1 ⁇ 0.34 (10)
  • the value ⁇ 4 is the optical surface diameter of the image side surface L2S2 of the second lens L2
  • the value ⁇ 1 is the optical surface diameter of the object side surface L1S1 of the first lens L1.
  • the imaging lens 10 more preferably satisfies the following conditional expression (10) ′. 0.25 ⁇ ⁇ 4 / ⁇ 1 ⁇ 0.30 (10) ′
  • the imaging lens (wide-angle optical system) 10 may further include other optical elements (for example, a lens, a filter member, etc.) having substantially no power in addition to the lenses L1 to L5.
  • other optical elements for example, a lens, a filter member, etc.
  • the lens unit described above includes the imaging lens (wide-angle optical system) 10 described above, and can be reduced in cost while being compact, high-performance, and wide-angle.
  • the imaging apparatus 100 including the lens unit 40 can realize a high-performance apparatus at a low cost.
  • the data of the optical surface that is, the lens surface of Example 1 is shown in Table 1 below.
  • the surface number is represented by “Surface”, and the infinity is represented by “INF”.
  • the lens surface is represented by “L1S1”
  • the object surface is represented by “OBJ”
  • the aperture stop ST is represented by “STOP”
  • the object side surface of the parallel plate is represented by “CGS1”
  • the second half symbol S1 is the nth lens.
  • the value D of the axial upper surface interval means the distance from the surface of the column to the surface of the lower left column.
  • the value D on the right side of the image side surface “CGS2” of the parallel plate indicates the axial top surface distance from the image side surface of the parallel plate to the imaging surface I (or the imaging surface).
  • the aspheric coefficients of the lens surfaces of Example 1 are shown in Table 2 below.
  • the aspherical shape is expressed by the following equation, with the vertex of the surface as the origin, the X axis in the optical axis direction, and the height in the direction perpendicular to the optical axis as h.
  • Ai i-order aspheric coefficient
  • R radius of curvature
  • K conic constant [Table 2]
  • FIG. 2 is a cross-sectional view of the imaging lens 11 that is the wide-angle optical system of the second embodiment.
  • the imaging lens 11 includes a first lens L1 that is convex toward the object side and has a negative meniscus, a second lens L2 that is convex toward the object side and is a negative meniscus, a third lens L3 that is biconvex and positive, and a negative lens that is convex toward the object side.
  • a meniscus fourth lens L4 and a biconvex positive fifth lens L5 are provided.
  • a light-shielding stop FS is disposed between the second lens L2 and the third lens L3, and an aperture stop ST is disposed between the third lens L3 and the fourth lens L4.
  • an imaging surface I is disposed on the image side of the fifth lens L5 via a filter F that is a parallel plate.
  • Example 2 The lens surface data of Example 2 is shown in Table 4 below.
  • Table 4 Surface R D nd vd OBJ INF INF L1S1 12.4307 1.200 1.8042 46.5 L1S2 3.6209 1.528 L2S1 2.5279 0.700 1.5351 56.0 L2S2 0.7235 1.599 L3S1 3.0569 2.023 1.6347 23.7 L3S2 -2.8597 0.266 STOP INF 0.203 L4S1 8.0470 0.400 1.6347 23.7 L4S2 1.2667 0.010 1.5140 42.8 L5S1 1.2667 1.937 1.5351 56.0 L5S2 -1.6446 0.235 CGS1 INF 0.700 1.5168 64.1 CGS2 INF 1.332
  • FIG. 3 is a cross-sectional view of the imaging lens 12 that is the wide-angle optical system of the second embodiment.
  • the imaging lens 12 includes a first lens L1 that is convex toward the object side and has a negative meniscus, a second lens L2 that is convex toward the object side and is a negative meniscus, a third lens L3 that is both convex and positive, and is convex and negative toward the object side.
  • a meniscus fourth lens L4 and a biconvex positive fifth lens L5 are provided.
  • a light-shielding stop FS is disposed between the second lens L2 and the third lens L3, and an aperture stop ST is disposed between the third lens L3 and the fourth lens L4.
  • an imaging surface I is disposed on the image side of the fifth lens L5 via a filter F that is a parallel plate.
  • Table 7 summarizes the values of Examples 1 and 2 corresponding to the conditional expressions (1) to (10) for reference. [Table 7]
  • the wide-angle optical system of the second embodiment is a modification of the wide-angle optical system of the first embodiment, and items that are not particularly described are the same as those of the first embodiment.
  • FIG. 4 shows a lens unit 40 or the like that incorporates an imaging lens 110 that is a wide-angle optical system of the second embodiment.
  • the fourth lens L4 is a positive aspherical lens having a biconvex shape with a paraxial axis
  • the fifth lens L5 has a meniscus shape having a concave object side surface and a convex shape on the paraxial side toward the image side. Is a negative aspherical lens.
  • the fourth and fifth lenses L4 and L5 having such a configuration are advantageous for correcting chromatic aberration.
  • the 4th lens L4 and the 5th lens L5 can also be set as the structure which joined both.
  • the wide-angle optical system has been described according to the embodiment.
  • the wide-angle optical system according to the present invention is not limited to the above-described embodiment, and various modifications can be made.

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Abstract

La présente invention concerne un système optique grand angle pour utilisation en imagerie, qui est de faible coût tout en étant compact, à haute performance et grand angle. Dans L'ordre depuis le côté objet, cet objectif d'imagerie (le système optique grand angle) 10 est essentiellement composé d'une première lentille négative L1 qui a une forme convexe sur le côté d'objet et une forme concave sur le côté image, est constitué de verre et est sphérique sur les deux côtés, une deuxième lentille négative L2 qui a une surface asphérique sur au moins un côté et qui a une forme concave sur le côté d'image, une troisième lentille positive L3, une butée d'ouverture ST, une quatrième lentille L4 qui a une surface asphérique sur au moins un côté, et une cinquième lentille L5 qui a une surface asphérique sur au moins un côté. Ce système optique satisfait aux expressions conditionnelles (1) à (4), qui concernent les valeurs D14/Hmax, D23/Hmax, TTL/Hmax, et φ1/Hmax.
PCT/JP2017/012181 2016-03-28 2017-03-24 Système optique grand angle, unité d'objectif et dispositif d'imagerie WO2017170284A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021005022A (ja) * 2019-06-27 2021-01-14 日本電産サンキョー株式会社 レンズユニット及びその製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111856767B (zh) * 2019-04-24 2022-09-23 信泰光学(深圳)有限公司 测距仪及其显示器镜组装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202415A (ja) * 1983-05-02 1984-11-16 Olympus Optical Co Ltd プラスチツクレンズとレンズ連結装置
JP2003337271A (ja) * 2002-05-21 2003-11-28 Sony Corp 結像レンズ装置及び撮像装置
JP2006284620A (ja) * 2005-03-31 2006-10-19 Nidec Nissin Corp 広角レンズおよび接合レンズ
JP2013174740A (ja) * 2012-02-24 2013-09-05 Hitachi Maxell Ltd 広角レンズおよび撮像装置
JP2013205715A (ja) * 2012-03-29 2013-10-07 Hitachi Maxell Ltd 撮像レンズおよび撮像装置
JP2014089241A (ja) * 2012-10-29 2014-05-15 Optical Logic Inc 撮像レンズ
JP2014142542A (ja) * 2013-01-25 2014-08-07 Nidec Sankyo Corp レンズユニットおよびレンズユニットの製造方法
JP2015045803A (ja) * 2013-08-29 2015-03-12 サーテック インターナショナル （スツォウ） カンパニー リミテッドＳｉｒｔｅｃ Ｉｎｔｅｒｎａｔｉｏｎａｌ（Ｓｕｚｈｏｕ）Ｃｏ．，Ｌｔｄ 広角レンズ
WO2015159770A1 (fr) * 2014-04-14 2015-10-22 オリンパス株式会社 Endoscope à capsule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9007702B2 (en) * 2013-03-03 2015-04-14 Newmax Technology Co., Ltd. Five-piece optical lens system
TWI479188B (zh) * 2014-01-27 2015-04-01 玉晶光電股份有限公司 電子裝置與其光學成像鏡頭
US10067315B2 (en) * 2014-05-16 2018-09-04 Sintai Optical (Shenzhen) Co., Ltd. Lens assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202415A (ja) * 1983-05-02 1984-11-16 Olympus Optical Co Ltd プラスチツクレンズとレンズ連結装置
JP2003337271A (ja) * 2002-05-21 2003-11-28 Sony Corp 結像レンズ装置及び撮像装置
JP2006284620A (ja) * 2005-03-31 2006-10-19 Nidec Nissin Corp 広角レンズおよび接合レンズ
JP2013174740A (ja) * 2012-02-24 2013-09-05 Hitachi Maxell Ltd 広角レンズおよび撮像装置
JP2013205715A (ja) * 2012-03-29 2013-10-07 Hitachi Maxell Ltd 撮像レンズおよび撮像装置
JP2014089241A (ja) * 2012-10-29 2014-05-15 Optical Logic Inc 撮像レンズ
JP2014142542A (ja) * 2013-01-25 2014-08-07 Nidec Sankyo Corp レンズユニットおよびレンズユニットの製造方法
JP2015045803A (ja) * 2013-08-29 2015-03-12 サーテック インターナショナル （スツォウ） カンパニー リミテッドＳｉｒｔｅｃ Ｉｎｔｅｒｎａｔｉｏｎａｌ（Ｓｕｚｈｏｕ）Ｃｏ．，Ｌｔｄ 広角レンズ
WO2015159770A1 (fr) * 2014-04-14 2015-10-22 オリンパス株式会社 Endoscope à capsule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021005022A (ja) * 2019-06-27 2021-01-14 日本電産サンキョー株式会社 レンズユニット及びその製造方法
JP7201543B2 (ja) 2019-06-27 2023-01-10 日本電産サンキョー株式会社 レンズユニット及びその製造方法

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