WO2013042585A1

WO2013042585A1 - Optical device inspection tool and optical device inspection method

Info

Publication number: WO2013042585A1
Application number: PCT/JP2012/073251
Authority: WO
Inventors: 輝彦伊藤
Original assignee: コニカミノルタアドバンストレイヤー株式会社
Priority date: 2011-09-21
Filing date: 2012-09-12
Publication date: 2013-03-28
Also published as: JP2014231987A

Abstract

When the optical device inspection tool is closed by superimposing the cover on the tool body, a storage area for storing optical lenses is formed therein. When the cover is opened from the tool body, of the side edges forming the lower tool body surface that faces the surface on which the tool is placed, the side edge in the direction of the opening-closing axis on the side of the connection to the cover forms a first beveled surface, and of the side edges forming the lower cover surface that faces the surface on which the tool is placed, the side edge in the direction of the opening-closing axis on the side of the connection to the tool body forms a second beveled surface. By allowing the first and second beveled surfaces to contact the surface on which the tool is placed when the cover is open, the respective lower surfaces of the tool body and the cover are inclined with respect to the surface on which the tool is placed and the open state is maintained.

Description

Optical element inspection jig and optical element inspection method

The present invention relates to an optical element inspection jig and an optical element inspection method.

Conventionally, an optical product such as a lens is stored in a storage case using an acrylic material or the like in order to transport or store the lens so that the lens does not touch the outside air. The lens stored in the storage case needs to be moved to another inspection apparatus when performing inspection coating after cleaning or inspection after coating. For this reason, there is a problem that the lens is exposed to the outside air when it is moved to the inspection apparatus, and dust or dust adheres to the lens.
Therefore, a technique is known in which a lens is transferred from a storage case stored in a row to an optical element inspection jig without being exposed to the outside air (for example, see Patent Document 1). Specifically, while the storage case and the optical element inspection jig are fitted to each other, the plurality of lenses in the storage case are slid to move to the storage portion in the optical element inspection jig. Transfer. Thereafter, in the optical element inspection jig, the lens stored in the storage portion is inspected by opening the lid portion. According to such an inspection jig, the lens case can be easily transferred by fitting the storage case and the optical element inspection jig and sliding the lens, and the lid portion of the inspection jig By opening the lens, any lens can be taken out, and further, there are few handling mistakes, and it can be easily manufactured with a simple structure.

JP 2011-13015 A

However, when inspecting the side surface portion including the optical surface of the lens using the inspection jig of Patent Document 1, the lid portion of the inspection jig is opened, and each lens unit is placed on the inspection jig. Hold it with tweezers and tilt it. Therefore, there are problems that the inspection time becomes long and the lens is scratched.
The present invention has been made in view of the above circumstances, an optical element inspection jig and an optical device that can shorten the inspection time and can easily inspect the optical element without causing damage to the optical element. The object is to provide an element inspection method.

According to one aspect of the present invention, an optical element inspection jig for inspecting an optical element placed on a placement surface and housed therein,
A jig body;
A lid portion joined so as to be openable and closable around an opening and closing axis of the jig body,
When the jig main body and the lid portion are overlapped and closed, a storage portion for storing the optical element is formed inside,
When the lid is opened with respect to the jig body and the optical element is exposed, among the side edges that form the lower surface facing the placement surface of the jig body, the lid and The side edge portion along the opening / closing axis direction on the joint portion side is a chamfered first tapered surface, and the jig among the side edge portions forming the lower surface facing the mounting surface of the lid portion. The side edge portion along the opening / closing axis direction on the joint portion side with the main body is a chamfered second tapered surface,
The lower surface of the jig body and the lower surface of the lid part are brought into contact with the mounting surface with the first and second tapered surfaces in a state where the lid part is opened with respect to the jig body. There is provided an optical element inspection jig that is inclined with respect to the mounting surface and is held in the open state.

According to another aspect of the present invention, an optical element inspection is performed by inspecting the optical element using an optical element inspection jig placed on the mounting surface and inspecting the optical element accommodated therein. A method,
The optical element inspection jig is
A jig body;
A lid portion joined so as to be openable and closable around an opening and closing axis of the jig body,
When the jig main body and the lid portion are overlapped and closed, a storage portion for storing the optical element is formed inside,
When the lid is opened with respect to the jig body and the optical element is exposed, among the side edges that form the lower surface facing the placement surface of the jig body, the lid and The side edge portion along the opening / closing axis direction on the joint portion side is a chamfered first tapered surface, and the jig among the side edge portions forming the lower surface facing the mounting surface of the lid portion. The side edge portion along the opening / closing axis direction on the joint portion side with the main body is a chamfered second tapered surface,
The lower surface of the jig body and the lower surface of the lid part are brought into contact with the mounting surface by bringing the first and second tapered surfaces into contact with the mounting surface in a state where the lid part is opened with respect to the jig body. The optical element inspection method is characterized in that the optical element is inspected by inclining each of the mounting surfaces and holding the opened state.

According to the present invention, the inspection time can be shortened, and the optical element can be easily inspected without causing damage to the optical element.

FIGS. 1A and 1B are side views for explaining an inspection method of an optical lens housed in an optical element inspection jig, FIG. 1A shows an optical pickup lens, and FIG. 1B shows a case where a collimator lens is used. It is an external appearance perspective view of the optical element inspection jig. It is the perspective view which showed the principal part of the jig | tool for optical element inspection. It is the perspective view which showed the principal part of the state which opened the optical element test | inspection jig | tool. FIG. 5-A is a partial cross-sectional view taken along the line II of FIG. 2, and FIG. 5-B is a side view of the line II-II of FIG. 6A is a side view taken along the line II-II in FIG. 2 with the optical lens housed in the optical element inspection jig, and FIG. 6B is a state in which the optical lens is housed in the optical element inspection jig. FIG. 3 is a schematic cross-sectional view taken along the line II of FIG. 7A is a plan view of the surface of the jig body facing the lid, FIG. 7B is a side view taken along the line III-III in FIG. 7A, and FIG. 7C is a plan view of FIG. FIG. 7B is a cross-sectional view taken along the line IV-IV. FIGS. 7B and 7C each contain a part of the optical lens. FIG. 7B is an enlarged view of FIG. 7-B. 9A is a plan view of the surface of the lid facing the jig body, FIG. 9B is a side view taken along the line VV of FIG. 9A, and FIG. 9C is a plan view of FIG. FIG. 9B is a cross-sectional view taken along the line VI-VI. FIGS. 9B and 9C each contain a part of the optical lens. FIG. 9B is an enlarged view of FIG. 9-B. It is an external appearance perspective view in the state where the storage case was inserted and fitted in the jig for optical element inspection. 12A is a side view of an optical lens stored in the storage case, and FIG. 12B schematically shows a state of optical lens stored in the storage case. IX-IX in FIG. It is arrow sectional drawing. FIG. 13-A is a plan view of a surface of the first case body facing the second case body, and FIG. 13-B is a side view taken along arrow VII-VII in FIG. 13-A. FIG. 13B is an enlarged view of FIG. 13-B. FIG. 15A is a plan view of a surface of the second case body facing the first case body, and FIG. 15B is a side view taken along the line VIII-VIII in FIG. 15A. FIG. 15B is an enlarged view of FIG. 15-B. It is sectional drawing of the optical axis direction of a holder integrated lens.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
An optical element inspection jig according to the present invention is a jig for transferring an optical element stored in a storage case from the storage case, storing the optical element therein, and inspecting the stored optical element. is there.
First, the optical lens used in the present invention will be described.

[Optical lens]
Examples of the optical lens stored in a row in the optical element inspection jig according to the present invention and inspected are, for example, the optical pickup lens shown in FIGS. 1-A and 6-A, and the collimator lens shown in FIG. 1-B. Alternatively, a holder-integrated lens shown in FIG. 17, an optical element for LED (not shown), or the like can be used. The holder-integrated lens is used in the fields of cameras, illumination, optical communication, and the like.
Such an optical lens 90 is preferably made of resin, for example. Further, as shown in FIG. 6A, the optical lens 90 includes a convex lens portion 94, a convex lens portion 96 formed on the opposite side of the convex lens portion 94, and substantially the

convex lens portions

94, 96. And

peripheral portions

95 and 97 each having a substantially flat surface called a flange with one step across the entire circumference. The thickness 96h of the convex lens portion 96 is formed to be thicker than the thickness 94H of the convex lens portion 94. On the other hand, the holder-integrated lens 100 has a lens portion 102 and a leg portion 101. The lens part 102 and the leg part 101 are preferably made of resin and integrally molded.
The optical lens 90 is light-transmitting at a portion molded with a resin, and in particular, the

convex lens portions

94 and 96 are effective lens portions (optical surfaces) that exhibit a lens function (optical function). The optical axes of the

convex lens portions

94 and 96 coincide with each other.
In the case of a collimator lens, the

convex lens portions

94 and 96 are thinner than the optical pickup lens.

[Optical element inspection jig]
As shown in FIG. 1, the optical element inspection jig 10 of the present invention is a jig for inspecting an optical lens 90 placed on a horizontal placement surface X and housed therein.
The optical element inspection jig 10 includes a long rectangular plate-shaped jig body 1 and a lid portion 2 joined to the jig body 1 so as to be openable and closable around an opening / closing axis in the longitudinal direction. ing. When the jig body 1 and the lid portion 2 are overlapped and closed, the cylindrical first storage portion 4 (see FIG. 6) that stores a plurality of optical lenses 90 in a row is stored therein. It is formed.
The jig body 1 and the lid portion 2 are made of a transparent or translucent resin, and are formed, for example, by cutting an acrylic plate or the like into a desired shape.
As shown in FIG. 1, the optical element inspection jig 10 has a lower surface 1c of the jig body 1 when the lid 2 is opened with respect to the jig body 1 and the optical lens 90 is exposed. Among the side edges that form the side, the side edge along the longitudinal direction on the side of the joint with the lid 2 is a chamfered first tapered surface 1d.
Moreover, the side edge part along the longitudinal direction in the junction part side of the jig | tool main body 1 among the side edge parts which form the lower surface 2c of the cover part 2 is the chamfered 2nd taper surface 2d.
Then, the lower surface 1c of the jig body 1 and the lower surface 2c of the lid portion 2 are placed by bringing the first tapered surface 1d and the second tapered surface 2d into contact with the placement surface X in a state where the lid portion 2 is opened. It is inclined with respect to the placement surface X and is held in a state where the lid 2 is opened.
As shown in FIG. 3, the first tapered surface 1 d is inclined upward toward the joint portion side with the lid portion 2 when the lower surface 1 c of the jig body 1 is placed on the placement surface.
The second tapered surface 2d is inclined downward toward the joint side with the jig body 1 when the lower surface 1c of the jig body 1 is placed on the placement surface.

Here, the inclination angle of the first taper surface 1d with respect to the lower surface 1c of the jig body 1 and the inclination angle of the second taper surface 2d with respect to the lower surface 2c of the lid portion 2 can be appropriately changed depending on the type of the optical lens 90 to be inspected. preferable.
For example, the case where the optical lens 90 is an optical pickup lens will be described.
In the case of the optical pickup lens, since the slope of the convex surface of the lens portion 96 is tighter than the slope of the convex surface of the lens portion 94, it is preferable to change the inclination angles of the first tapered surface 1d and the second tapered surface 2d, respectively. .
Specifically, as shown in FIG. 1A, when inspecting the lens unit 96 side with a convex surface, the optical lens 90 is placed on the jig body 1 side so that the convex lens unit 96 with a convex surface is exposed. The first taper surface 1d is preferably set so that the inclination angle K1 of the first tapered surface 1d with respect to the lower surface 1c of the jig body 1 is 30 to 70 °. Further, when inspecting the lens portion 94 side having a loose convex surface, the optical lens 90 is housed on the lid portion 2 side so that the lens portion 94 having a loose convex surface is exposed, and the lid portion 2 of the second tapered surface 2d is accommodated. The inclination angle K2 with respect to the lower surface 2c is preferably set to be 5 to 60 °.

On the other hand, when the optical lens 90 is a collimator lens, the slopes of the convex surfaces of the

lens portions

94 and 96 on both sides are loose. Therefore, when inspecting any of the

lens portions

94 and 96, the first and second tapered surfaces 1d, It is preferable to set the inclination angles K3 and K4 of 2d to be 5 to 60 °.
Specifically, as shown in FIG. 1B, when inspecting one lens unit 96 side, the optical lens 90 is mounted on the jig body 1 side so that the one convex lens unit 96 is exposed. It is preferable that the inclination angle of the first tapered surface 1d with respect to the lower surface 1c of the jig body 1 is set to 5 to 60 °. When the other side 96 is inspected, the optical lens 90 is accommodated on the lid 2 side so that the other lens 96 is exposed, and the lower surface of the lid 2 of the second tapered surface 2d. It is preferable to set the inclination angle with respect to 2c to be 5 to 60 °.
As described above, in the case of the optical pickup lens, it is preferable to set the inclination angle of one of the first and second taper surfaces 1d and 2d tight and set the inclination angle of the other taper surface to be loose. In the case of a collimator lens, it is preferable to set the inclination angles of the first and second tapered surfaces 1d and 2d loosely.
Further, when the optical lens 90 is the holder-integrated lens 100 as shown in FIG. 17, when inspecting the lens surface on the inner side, if the lens itself is not inclined with respect to the mounting surface, the leg portion 101 makes it difficult to see the lens surface, but according to the optical element inspection jig 10 of the present invention, the holder-integrated lens 100 can be placed at a tilt angle, so that the complicated operation is difficult. It becomes possible to inspect the inside of the lens unit without the need.

As described above, when the optical lens 90 is inspected, the first tapered surface 1d and the second tapered surface 2d are brought into contact with the mounting surface X in a state where the lid 2 is opened with respect to the jig body 1. Let As a result, the lower surfaces 1c and 2c of the jig body 1 and the lid part 2 are tilted with respect to the placement surface X, and the jig body 1 and the lid part 2 are held open. In this open state, the

convex lens portions

94 and 96 of the optical lens 90 are inspected with a microscope or the like.

Hereinafter, the storage case 50 for storing the optical element inspection jig 10 and the optical lens 90 will be described in detail. In FIG. 2 and subsequent figures, it is described that the inclination angles of the first and second tapered surfaces 1d and 2d are the inclination angles K1 and K2 for the optical pickup lens.
<Jig body>
As shown in FIGS. 2 to 7, the jig main body 1 has a long rectangular plate shape. On the surface of the jig body 1 facing the lid 2, a notch 11 is formed at one end 1 a of the jig body 1.
The notch 11 has a substantially rectangular shape in plan view.
In addition, a first groove portion 12 in which the optical lens 90 can be accommodated in the longitudinal direction is formed on the surface of the jig body 1 facing the lid portion 2.

One end portion of the first groove portion 12 communicates with the notch portion 11, and the other end portion of the first groove portion 12 penetrates the other end surface of the jig body 1. As shown in FIG. 6 to FIG. 8, the first groove 12 is formed in a stepped portion 13 that is formed in one step from the surface (surface facing the lid portion 2) 1A of the jig body 1, and is formed in a stepped further step. The stepped portion 14 is formed in a two-step shape.
A portion (peripheral portion 95) other than the optical surface (convex lens portion 94) of the optical lens 90 is in contact with the step surface 13 a forming the first step portion 13. That is, the peripheral portion 95 of the optical lens 90 is held in contact with the step surface 13a. The depth H of the second stepped portion 14 is formed deeper than the height 94H of the convex lens portion 94 of the optical lens 90, and the convex lens portion 94 forms a stepped surface 14 a that forms the second stepped portion 14. It is designed not to touch.
In addition, the wall surface that forms between the surface 1A of the jig body 1 and the first step 13 is a tapered surface 1B that becomes wider from the first step 13 to the surface 1A of the jig body 1. It is said that. By using the tapered surface 1B as described above, the jig body 1 can be prevented from coming into contact with the optical lens 90 during opening and closing.
Further, a pin P is inserted into the other end portion of the first groove portion 12 of the jig body 1, and the optical lens 90 accommodated by the pin P is connected to the other end portion 10 b side of the optical element inspection jig 10. It is designed not to fall off.
Further, as shown in FIG. 7, a notch 15 is formed in a part of the jig body 1. Thereby, the upper and lower sides of the jig body 1 can be quickly distinguished. In particular, when a similar notch is present in a storage case 50 described later, the vertical direction of the jig body 1 and the storage case 50 can be reliably and quickly aligned.

<Cover>
As shown in FIGS. 6, 9, and 10, the lid portion 2 has a long rectangular plate shape, similar to the jig body 1. A notch 21 that cuts out the one end 2 a is formed at one end 2 a of the surface of the lid 2 facing the jig body 1.
The notch portion 21 has a substantially rectangular shape in plan view similar to the notch portion 11 of the jig body 1, and when the jig body 1 and the lid portion 2 are closed, the notch portion 21 and the jig body 1. A cylindrical fitting portion 3 is formed by the notch portion 11. One end of a storage case 50 described later is stored in the fitting portion 3 (see FIG. 11).
Further, a first groove portion 22 is formed on the surface of the lid portion 2 facing the jig body 1 so that the optical lens 90 can be accommodated in the longitudinal direction.

One end portion of the first groove portion 22 communicates with the notch portion 21, and the other end portion of the first groove portion 22 penetrates the other end surface of the lid portion 2. The first groove portion 22 is formed of a step portion 23 formed by being recessed one step from the surface 2A (surface facing the jig body 1) of the lid portion 2 and a step portion 24 formed by further recessing one step. There are two steps.
The stepped surface 23a forming the first stepped portion 23 is configured such that the peripheral portion 97 of the optical lens 90 can come into contact therewith. That is, the peripheral portion 97 of the optical lens 90 is held in contact with the step surface 23a. The depth h of the second stepped portion 24 is formed deeper than the height 96h of the convex lens portion 96 of the optical lens 90, and the convex lens portion 96 forms a stepped surface 24 a that forms the second stepped portion 24. It is designed not to touch.
The wall surface that forms between the surface 2A of the lid 2 and the first step 23 is a tapered surface 2B that becomes wider from the first step 23 toward the surface 2A of the lid 2. ing. Further, the tapered surface 2 C is such that the wall surface formed between the first step portion 23 and the second step portion 24 becomes wider from the second step portion 24 toward the first step portion 23. It is said that. By using the tapered

surfaces

2B and 2C in this way, it is possible to avoid the lid portion 2 coming into contact with the end portion of the optical lens 90 during opening and closing.

As shown in FIG. 6, when the jig main body 1 and the lid portion 2 are closed, a cylindrical shape is formed by the first groove portion 12 of the jig main body 1 and the first groove portion 22 of the lid portion 2. A first storage part 4 is formed. The first storage unit 4 stores the optical lens 90. The length of the 1st accommodating part 4 is set to the length which 20 or more optical lenses 90 can accommodate, for example. With such a length, the storage efficiency and the inspection efficiency of the optical lens 90 are excellent.
In the first storage portion 4, the plurality of optical lenses 90 have their convex lens portions 96 disposed in the first groove portion 22 of the lid portion 2, and the convex lens portions 94 are disposed in the first groove portion 12 of the jig body 1. And it is accommodated along the elongate direction.
In a state where the optical lens 90 is stored in the first storage portion 4, the

peripheral portions

95 and 97 of the optical lens 90 come into contact with the step surface 13 a of the first step portion 13 of the jig body 1, and the lid portion 2 The first stepped portion 23 has a minute gap from the stepped surface 23a. The minute interval is smaller than the interval between the convex lens portion 96 of the optical lens 90 and the step portion 24 of the lid portion 2, and the convex lens portion 94 of the optical lens 90 and the step portion 14 of the jig body 1. The interval is smaller than the interval. As a result, the optical lens 90 is gently held in a state in which the

convex lens portions

94 and 96 are not in contact with the jig body 1 and the lid portion 2 and can move in the long axis direction within the storage portion 4. A first holding portion that gently holds the

peripheral portions

95 and 97 of the optical lens 90 is formed by the space formed by the portion 13 and the first step portion 23.
The depth F of the first step 13 and the depth f of the first step 23 are substantially equal, and these depths F and f are the thicknesses of the

peripheral portions

95 and 97 of the optical lens 90. Slightly deeper than half the thickness. That is, the surface 1 A of the jig body 1 and the surface 2 A of the lid 2 are located at the center position in the thickness direction of the outer peripheral edge of the optical lens 90. With this configuration, when the lid 2 is opened and closed with respect to the jig body 1, the tapered surfaces of 1B and 2B provided so as not to come into contact with the end of the optical lens 90 are formed to the same size. Therefore, the lid 2 side and the jig body 1 side of the

peripheral portions

95 and 97 of the optical lens 90 can be positioned, respectively.
Further, the tapered surface 1B and the tapered surface 2B are configured to regulate the position in the direction orthogonal to the optical axis of the optical lens 90 (hereinafter referred to as the lateral direction). That is, the

convex portions

94 and 96 of the optical lens 90 are formed by forming the

tapered surfaces

1B and 2B and the

step portions

13 and 23 so that the optical lens 90 can be moved minutely in the lateral direction in the storage portion 4. The inside of the storage unit 4 can be configured to be movable without contacting the inner surface of the storage unit 4.
Further, the tapered surface 25 exists so as to cover the lens near the peripheral portion. An optical element made by resin injection molding may be processed by cutting the gate portion. When such an optical element is stored in the optical element inspection jig 10, the gate portion is processed. Since the peripheral portion 95 enters further into the stepped portion 13 and the lens optical surface collides with the inner wall of the lid portion because it is lost, such a problem is caused by the tapered surface 25. Does not occur. Furthermore, when the peripheral portion 95 has entered the depth of the stepped portion 13, the peripheral portion on the opposite side may jump out of the space formed by the stepped

portions

13 and 23, but the tapered surface 25 exists. Therefore, when a part of the peripheral portion 95 protrudes (the lens tilts), the end portion of the peripheral portion 95 hits the tapered surface, so that it is possible to suppress lens position variation and accompanying damage. .

The jig body 1 and the lid portion 2 are configured to be openable and closable around the longitudinal opening / closing axis by, for example, a hinge, snap fit, hook type, tape, or the like on one side surface in the longitudinal direction. In this embodiment, they are joined by the tape S (see FIGS. 5 and 6-A).

[Storage case]
As shown in FIGS. 11 and 12, the storage case 50 includes a first case body 60 and a second case body 70, which are welded and integrated. The first case body 60 and the second case body 70 are made of a transparent or translucent resin, and are formed by, for example, injection molding.

<< First case body >>
As shown in FIGS. 13 and 14, the first case body 60 has a long rectangular plate shape. A convex portion 61 that is fitted into the concave portion 71 of the second case body 70 is formed on the surface of the first case body 60 that faces the second case body 70.
The convex portion 61 is formed with a second groove portion 62 in which the optical lens 90 can be accommodated side by side along the longitudinal direction.

The second groove portion 62 penetrates both end surfaces of the first case body 60. The second groove portion 62 is formed of a stepped portion 63 formed by being depressed by one step from the convex surface 60A forming the convex portion 61, and has a stepped shape.
As shown in FIG. 12, the peripheral surface 95 of the optical lens 90 is configured to come into contact with the convex surface 60A forming the convex portion 61. That is, the peripheral portion 95 of the optical lens 90 is brought into contact with the convex surface 60A. The depth M of the step portion 63 is formed deeper than the height 94M of the convex lens portion 94 of the optical lens 90 so that the convex lens portion 94 does not contact the step surface 63 a that forms the step portion 63.
In addition, protrusions 65 for welding to the second case body 70 are formed on both sides of the convex portion 61.

<< 2nd case body >>
As shown in FIGS. 15 and 16, the second case body 70 has a long rectangular plate shape. A concave portion 71 into which the convex portion 61 of the first case body 60 is fitted is formed on the surface of the second case body 70 facing the first case body 60. The recess 71 is formed with a second groove 72 in which the optical lens 90 can be stored side by side along the longitudinal direction.

The second groove 72 penetrates both end faces of the second case body 70. The second groove portion 72 is formed of a stepped portion 73 formed one step from the concave surface 70 A that forms the recessed portion 71, and has a stepped shape.

As shown in FIG. 12, the concave portion 70 A that forms the concave portion 71 is configured so that the peripheral portion 97 of the optical lens 90 can come into contact therewith. That is, the peripheral portion 97 of the optical lens 90 is brought into contact with the concave surface 70A. The depth m of the stepped portion 73 is formed deeper than the height 96 m of the convex lens portion 96 of the optical lens 90 so that the convex lens portion 96 does not contact the stepped surface 73 a that forms the stepped portion 73.

The convex portion 61 of the first case body 60 is fitted into the concave portion 71 of the second case body 70, and the projection 65 is welded to the second case body 70 to form the storage case 50.
A cylindrical second storage portion 8 is formed by the second groove portion 62 of the first case body 60 and the second groove portion 72 of the second case body 70. A plurality of optical lenses 90 are stored in the second storage unit 8. The length of the second storage unit 8 is set to a length that can store, for example, 20 or more optical lenses 90. With such a length, the storage efficiency and the inspection efficiency of the optical lens 90 are excellent.
In the second storage portion 8, the plurality of optical lenses 90 have their convex lens portions 96 disposed in the second groove portions 72 of the second case body 70, and the convex lens portions 94 are disposed in the second case portion 60 of the first case body 60. It arrange | positions in the groove part 62 of this and is accommodated along with the elongate direction.
In a state in which the optical lens 90 is stored in the second storage portion 8, the peripheral portion 97 and the concave surface 70A have a small interval in a state where the peripheral portion 95 of the optical lens 90 is in contact with the convex surface 60A. Accordingly, the

convex lens portions

94 and 96 of the optical lens 90 are gently held in a state in which the

convex lens portions

94 and 96 of the optical lens 90 can move in the long axis direction without contacting the inside of the storage case 50. Further, the lateral direction of the recess 71 is configured to regulate the position in the direction orthogonal to the optical axis of the optical lens 90 (hereinafter referred to as the lateral direction). That is, the

concave surfaces

71, 70A, and 60A are configured so that the optical lens 90 can be moved minutely in the lateral direction in the second storage portion 8, so that the

convex portions

94 and 96 of the optical lens 90 are the first. The inside of the 2nd accommodating part 8 can be comprised so that a movement is possible in the state which does not contact the inner surface of 2 accommodating part 8.

Further, when one end portion of the storage case 50 is fitted into the fitting portion 3 of the optical element inspection jig 10, the step surface 13a of the first storage portion 4 of the optical element inspection jig 10 and the storage case. The convex surface 60A of the second storage portion 8 of 50, the stepped surface 23a of the first storage portion 4 of the optical element inspection jig 10, and the concave surface 70A of the second storage portion 8 of the storage case 50 face each other. It is one.
As shown in FIG. 12-B, caps C having the same shape as the both end faces are fitted into the open end faces of the second storage portion 8 of the storage case 50, respectively. The optical lens 90 housed by C is prevented from falling off from both ends of the housing case 50.

Next, a procedure for transferring the optical lens 90 stored in the storage case 50 to the optical element inspection jig 10 will be described.
First, the cap C at one end of the storage case 50 is removed, one end of the storage case 50 is inserted into the fitting portion 3 of the optical element inspection jig 10, and the one end of the storage case 50 is used for optical element inspection. It is made to fit in the fitting part 3 of the jig 10.
Next, in a state of being fitted, the storage case 50 is tilted with the side from which the cap C is removed facing down, and the optical lens 90 in the storage case 50 is moved to the first of the optical element inspection jig 10. Move to storage 4 side. At this time, the step surfaces 13a and 23a of the first storage portion 4 and the

convex surfaces

60A and 70A of the second storage portion 8 are flush with each other, so that the optical lens 90 moves smoothly. At that time, the

convex lens portions

94 and 96 of the optical lens 90 do not contact the inner surface of the housing case 50 and the optical element inspection jig 10, and the peripheral portion 95 (or the peripheral portion 97) of the

convex lenses

94 and 96 is convex. It moves in contact with 60A (or concave surface 70A). In this manner, the optical element is transferred from the storage case 50 to the optical element inspection jig 10. Further, the fitting portion 3 is present at a position eccentric from the center when the optical element inspection jig 10 is viewed from the longitudinal direction, and the storage portion 4 is present at substantially the center position. Therefore, the storage part 4 exists in the position eccentric from the center of the fitting part 3. If the

convex lens portions

94 and 96 are close in degree of convexity, and the fitting portion 3 is at the center position of the optical element inspection jig 10, the lens is transferred when the storage case 50 is transferred to the optical element inspection jig 10. However, since the storage portion 4 exists at a position that is decentered from the center position of the fitting portion 3, the lens is turned upside down and the optical element inspection jig 10. It will not be stored in.

Thereafter, when the optical lens 90 moved into the optical element inspection jig 10 is inspected, as described above, the lid 2 is opened with respect to the jig body 1 as shown in FIG. The first tapered surface 1d and the second tapered surface 2d are brought into contact with the mounting surface X. Accordingly, the lower surfaces 1c and 2c of the jig body 1 and the lid portion 2 are inclined with respect to the placement surface X, and the lid portion 2 is held open. Inspect for external defects with a microscope or the like. If there is a defect, the defective optical lens 90 is taken out.
When the inspection is completed, when the lid 2 is closed, and then the optical lens 90 is moved to another location, the storage case 50 and the optical element inspection jig 10 are fitted, contrary to the above. In the state in which the optical lens 90 is held, the storage case 50 is tilted so that the side from which the cap C is removed is up, and the optical lens 90 in the first storage portion 4 of the optical element inspection jig 10 is stored in the storage case 50. Move to.
Further, the pin P provided on the optical element inspection jig 10 may be removed, and the optical lens 90 may be moved so as to push out the optical lens 90 from the opposite side of the fitting portion 3.

As described above, according to the optical element inspection jig 10 of the present embodiment, the jig body 1 and the lid portion 2 joined to be openable and closable around the opening and closing axis of the jig body 1 are provided. When the jig body 1 and the lid part 2 are overlapped with each other and closed, a cylindrical first housing part 4 for housing the optical lens 90 is formed therein, and the lower surface 1c of the jig body 1 is formed. Of the side edges along the opening / closing axis direction on the joint side with the lid 2 is a chamfered first tapered surface 1d, and the side forming the lower surface 2c of the lid 2 Among the edges, the side edge along the opening / closing axis direction on the joint side with the jig body 1 is a chamfered second tapered surface 2d, and the lid 2 is opened with respect to the jig body 1. In this state, the first and second tapered surfaces 1d and 2d are brought into contact with the placement surface X, whereby the lower surface 1c of the jig body 1 and the lid 2 The lower surface 2c is inclined with respect to the placement surface X and is held open. Therefore, since the optical lens 90 is held in an inclined state, when the side surface of the optical lens 90 is inspected, it is not necessary to grasp the optical lens 90 with tweezers or the like and inspect it with a microscope, and the lid 2 is opened. The optical lens 90 can be inspected with a microscope as it is. Therefore, the use of tweezers or the like does not cause damage to the optical lens 90, and the side surface of the optical lens 90 can be easily inspected, the inspection time can be shortened, and the inspection can be stably performed.
In addition, the optical element inspection jig 10 corresponding to the type of the optical lens 90 can be obtained simply by appropriately changing the inclination angles of the first and second tapered surfaces 1d and 2d.
Furthermore, since the optical lens 90 is housed and transported in the housing case 50 and is easily transferred from the inside of the housing case 50 to the optical element inspection jig 10 without touching the outside air during inspection, dust or dirt is placed on the optical lens 90. Inspection can be performed without adhesion.

The present invention can be suitably used for an optical pickup lens, a collimator lens, a holder-integrated lens, and the like.

DESCRIPTION OF SYMBOLS 1 Jig body 1c Lower surface 1d 1st taper surface 2 Lid 2c Lower surface 2d 2nd taper surface 4 1st accommodating part 10 Optical element test | inspection jig | tool 90 Optical lens 100 Holder integrated lens 101 Leg part 102 Lens part X Mount Surface

Claims

An optical element inspection jig for inspecting an optical element placed on the placement surface and housed therein,
A jig body;
A lid portion joined so as to be openable and closable around an opening and closing axis of the jig body,
When the jig main body and the lid portion are overlapped and closed, a storage portion for storing the optical element is formed inside,
When the lid is opened with respect to the jig body and the optical element is exposed, among the side edges that form the lower surface facing the placement surface of the jig body, the lid and The side edge portion along the opening / closing axis direction on the joint portion side is a chamfered first tapered surface, and the jig among the side edge portions forming the lower surface facing the mounting surface of the lid portion. The side edge portion along the opening / closing axis direction on the joint portion side with the main body is a chamfered second tapered surface,
The lower surface of the jig body and the lower surface of the lid part are brought into contact with the mounting surface with the first and second tapered surfaces in a state where the lid part is opened with respect to the jig body. A jig for inspecting an optical element, wherein the jig is inclined with respect to the mounting surface and held in the open state.
An optical element inspection method for inspecting the optical element by using an optical element inspection jig for inspecting the optical element placed on the mounting surface and housed therein,
The optical element inspection jig is
A jig body;
A lid portion joined so as to be openable and closable around an opening and closing axis of the jig body,
When the jig main body and the lid portion are overlapped and closed, a storage portion for storing the optical element is formed inside,
When the lid is opened with respect to the jig body and the optical element is exposed, among the side edges that form the lower surface facing the placement surface of the jig body, the lid and The side edge portion along the opening / closing axis direction on the joint portion side is a chamfered first tapered surface, and the jig among the side edge portions forming the lower surface facing the mounting surface of the lid portion. The side edge portion along the opening / closing axis direction on the joint portion side with the main body is a chamfered second tapered surface,
The lower surface of the jig body and the lower surface of the lid part are brought into contact with the mounting surface by bringing the first and second tapered surfaces into contact with the mounting surface in a state where the lid part is opened with respect to the jig body. A method of inspecting the optical element, wherein the optical element is inspected by inclining with respect to the mounting surface and holding the opened state.