JP2006321497A - Lens storage molding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens storage container capable of taking out lenses in a neatly aligned manner in the predetermined direction with regularity, enhancing the assembling workability, and reducing cost by reducing a man-hour. <P>SOLUTION: In the cylindrical lens storage container, a plurality of lenses each having a projecting part at a part other than an optical-effective face are arranged and stored. Steps to regulate the rotation of the lenses in the direction around the optical axis are formed in the lens storage container along the direction in which the lenses are arranged. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lens storage container in which lenses are arranged and stored, and used for storage and transportation.

  In recent years, mold processing technology and lens surface accuracy evaluation technology have been improved, and lenses formed by molding have been frequently used. In addition, a large number of lenses formed by this molding are stored together in a lens storage container, and the lens is stored or transported while being stored in the lens storage container.

As an example of such a lens storage container, the lens surface has a cylindrical shape formed so as to have a gap in the optical axis direction even when the lens flange portion abuts a cross-sectional shape perpendicular to the lens insertion direction. A lens storage container is disclosed (for example, see Patent Document 1).
Japanese Utility Model Publication No. 7-35388

  The lens stored in the lens storage container is taken out from the lens storage container at the time of assembly work and is assembled into a predetermined position of the counterpart component. In particular, a lens molded from a resin material may cause a small regular deviation in the lens surface shape depending on molding conditions, gate position, etc., and this fine regular deviation does not become a problem during assembly. In addition, for example, there is a case where the position is adjusted by rotating it to a predetermined position with reference to the gate position and then incorporated into the counterpart part.

  In such a case, if the lens can be rotated around the optical axis in the storage container and stored without regularity, when the lens is removed from the lens storage container, Therefore, the rotation angle must be adjusted individually when adjusting the position, and workability is deteriorated and man-hours are increased.

  For such a problem, in the lens storage container described in Patent Document 1, since the lens can freely rotate around the optical axis in the container, the state when the lens is taken out is a state rotated in an arbitrary direction. There are problems that workability is deteriorated, man-hours are increased, and cost is increased.

  In view of the above problems, the present invention provides regularity in the storage state of the lens so that the lens can be taken out in a regular order with regularity, thereby improving workability during assembly work and reducing man-hours. The object is to obtain a lens storage container capable of reducing the cost.

  The above object can be solved by the following configuration.

  1) A cylindrical lens storage container for storing a plurality of lenses having convex portions in a portion other than the optically effective surface in order to restrict rotation of the lens in the direction around the optical axis in the lens storage container. The lens storage container is characterized in that the step portion is formed along the direction in which the lenses are arranged.

  2) A cylindrical lens storage container for storing a plurality of lenses having convex portions in parts other than the optically effective surface, wherein a stepped portion is formed in the lens storage container along the direction in which the lenses are aligned. A lens storage container characterized by restricting rotation of the lens in the direction around the optical axis by storing the convex portion in correspondence with the side surface of the stepped portion.

  3) The lens storage container according to 1) or 2), wherein at least one of the insertion ports into which the lens is inserted into the lens storage container, a cross section perpendicular to the lens insertion direction is formed larger than a cross section of the internal lens storage space.

  According to the invention of the above 1) or 2), the lenses can be taken out side by side with regularity, and at the time of assembly work, alignment can be performed only by rotating each by a predetermined rotation angle. Thus, it is possible to obtain a lens storage container capable of improving workability by reducing costs and reducing costs by man-hours.

  Furthermore, the internal shape of the storage portion can be made simple, a lens storage container can be easily created, and a low-cost lens storage container can be obtained.

  According to the invention of the above 3), it is possible to obtain a lens storage container that can be easily inserted by forming a large insertion opening when the lens is inserted.

  Hereinafter, the present invention will be described in detail with reference to embodiments, but the present invention is not limited thereto.

  FIG. 1 is a perspective view showing an example of the outer shape of a lens housed in the lens housing container according to the present embodiment. FIG. 2A is a perspective view seen from one lens surface side, and FIG. 2B is a perspective view seen from the other lens surface side.

  As shown in the figure, a lens 10 housed in a lens housing container includes a lens surface 11 that is an optically effective surface, a flange portion 12 that is integrally formed on the outer periphery of the lens surface 11, and a flange portion 12. The outer shape is formed by three integrally formed convex portions 13a, 13b, and 13c. The three convex portions 13a, 13b, and 13c are particularly wide between the convex portions 13a and 13c.

  Hereinafter, an example of the lens storage container according to the present embodiment will be described with reference to FIGS.

  FIG. 2 is a cross-sectional view of a state in which the lens 10 is stored in the lens storage container 20 according to the present embodiment. FIG. 3 is a diagram showing a positional relationship of the lenses 10 housed in the lens housing container 20 according to the present embodiment.

  As shown in FIG. 2, the lens storage container 20 has a receiving member 22 that receives lower end surface portions of the three convex portions 13 a, 13 b, and 13 c formed on the lens 10, and a cross section that is fixed to the receiving member 22. It is formed of a U-shaped angle member 21.

  The receiving member 22 and the angle member 21 are welded and fixed by a protrusion 22t formed on the receiving member 22, and a space for accommodating the lens 10 is formed inside as shown in the figure. In addition, the assembly of the receiving member 22 and the angle member 21 may be a method other than welding, for example, a method in which a hook portion is formed as an adhesive or is hooked and fixed.

  In the receiving member 22, a stepped portion 22 s is formed along the direction in which the lenses 10 are arranged, and the stepped portion 22 s is illustrated so as to face the side end surfaces of the convex portions 13 a and 13 c formed on the lens 10. An asymmetric space is formed with respect to the center line.

  As shown in FIG. 3, the lens storage container 20 is a cylindrical lens storage container that stores a plurality of lenses 10 side by side, and the step portion 22 s in the lens storage container 20 extends along the direction in which the lenses 10 are aligned. The side surfaces of the convex portions 13a and 13c formed on the lens 10 are stored in correspondence with the side surfaces of the stepped portion 22s.

  Therefore, the rotation of the lens 10 in the direction around the optical axis is restricted by the convex portion and the step portion 22s, and the stored lenses 10 are stored in a regularly and regularly arranged state as shown in FIG. . Since the lens 10 can be stored in a regular and orderly manner as described above, the lens 10 can be taken out with a regularity in a predetermined direction even when the lens 10 is taken out. It becomes a lens storage container that can be reduced.

  In addition, the internal shape of the storage portion is simple, the lens storage container can be easily created, and the lens storage container itself can also be reduced in cost.

  Furthermore, as shown in FIG. 3, in the case where the gate 10g of the lens 10 is formed at a position other than the position where the lenses are in contact with each other during the storage arrangement, the variation in the storage length when a predetermined number of lenses are stored is kept small. In addition, it has a secondary effect that the number of lenses stored in one lens storage container can be the same.

  Further, at the insertion opening of the lens 10 formed at both ends of the lens storage container 20, the receiving member 22, the step portion 22 s of the receiving member 22, and the opening direction formed by the angle member 21 are orthogonal to the insertion direction of the lens 10. It is preferable that the cross section is formed larger than the cross section of the internal lens storage space. For example, as shown in FIG. 3, by forming the lens insertion portion with an inclined surface, the lens insertion opening becomes a large opening, and the lens storage container can be more easily inserted.

  Reference numeral 30 denotes a cap member, which is attached to a lens insertion portion formed by the receiving member 22 and the angle member 21, and prevents the lens 10 from falling off. A claw 30t is formed on the cap member 30 and is engaged with and fixed to a recess 21k formed on the outer surface of the angle member 21. Further, the integrally formed spring portion 30d abuts on the flange portion of the lens located at the end when the lens is mounted, presses the lens by its elastic force, and abuts the lens inside the lens container. In other words, even when vibration is applied during transportation, the lenses do not collide or separate from each other.

  Hereinafter, modified examples of the lens container according to the present embodiment will be described with reference to FIGS. 4 and 5.

  FIG. 4 is a diagram illustrating another example of the lens 10 having a convex portion at a portion other than the optically effective surface. FIG. 5 is a cross-sectional view of the lens storage container 20 in a state where the lens 10 shown in FIG. 4 is stored.

  As shown in FIG. 4, the lens 10 to be accommodated includes a lens surface 11 that is an optically effective surface, a flange portion 12 that is integrally formed on the outer periphery of the lens surface 11, and an integrally formed on the flange portion 12. The outer shape is formed by the two convex portions 13d and 13e.

  As shown in FIG. 5, the lens storage container 20 is formed by a receiving member 22 that receives the flange portion 12 formed on the lens 10, and an angle member 21 that is fixed to the receiving member 22 and has a U-shaped cross section. Has been. The receiving member 22 and the angle member 21 are fixed as in FIG.

  The receiving member 22 is formed with a step portion 22s along the direction in which the lenses 10 are arranged, and the convex portions 13d and 13e formed on the lens 10 are opposed to the side surface of the step portion 22s. A space is formed for storage.

  Even with such a configuration, the same effect as described above can be obtained.

It is a perspective view which shows an example of the external shape of the lens accommodated in the lens storage container which concerns on this Embodiment. It is sectional drawing of the state in which the lens was accommodated in the lens storage container which concerns on this Embodiment. It is a figure which shows the positional relationship of the lens accommodated in the lens storage container which concerns on this Embodiment. It is a figure which shows the other example of the lens which has a convex part in parts other than an optical effective surface. It is sectional drawing of the lens storage container of the state in which the lens shown in FIG. 4 was accommodated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lens 11 Lens surface 12 Flange part 13 Convex part 20 Lens storage container 21 Angle member 22 Receiving member 30 Cap member

Claims (3)

A cylindrical lens storage container for storing a plurality of lenses having convex portions in a part other than the optically effective surface, and a step for restricting rotation of the lens around the optical axis in the lens storage container A lens storage container, wherein the portion is formed along the direction in which the lenses are arranged. A cylindrical lens storage container for storing a plurality of lenses having convex portions in a portion other than the optically effective surface, wherein a step portion is formed in the lens storage container along the direction in which the lenses are aligned, and the step A lens storage container characterized in that rotation of the lens in the direction around the optical axis is regulated by storing the convex portion in correspondence with the side surface of the lens portion. The at least one of the insertion ports for inserting the lenses into the lens storage container has a cross section perpendicular to the lens insertion direction larger than the cross section of the internal lens storage space. Lens storage container.

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