JP3048141B2 - Optical component equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inexpensive optical component device capable of preventing cracks in an optical glass component, improving the assembling accuracy, and reducing the cost.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory view of the configuration of a conventional example generally used in the prior art. In the figure, a recess 2 is provided in an optical component holder 1. Optical glass parts 3
However, the bottom surface 21 of the concave portion is used as a reference surface, and the entire surface of the concave surface is adhered to the reference surface 21 with an adhesive to form the bonding portion 4.

The holding plate 5 is attached to the optical component holder 1 on the opening side of the concave portion of the optical component holder 1 with a screw 6, and holds the optical glass component 3 via a cushioning material 7.

[0004]

However, such an apparatus has the following problems. Since the linear expansion coefficients of the optical glass part 3 and the optical part holder 1 are different, if the temperature of the bonding part 4 changes, the optical glass part 3
Stress is generated inside the

In the conventional structure, the length of the bonding portion 4 is long and the thickness of the bonding portion 4 is thin, and the stress inside the glass component 3 is increased, so that cracks are generated inside the optical glass component 3.

[0006] Even when the adhesive flows out to the side surface of the concave portion 2 and the direction of restraint by the adhesive becomes multi-directional, the stress inside the optical glass part 3 increases and cracks occur inside the optical glass part 3. Let it.

Further, since the adhesive is provided between the reference surface 21 and the optical glass component 3, the optical glass component 3
Positioning accuracy cannot be improved.

The present invention solves the above-mentioned problems. SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive optical component device which can prevent the occurrence of cracks in an optical glass component, improve assembling accuracy, and reduce the cost.

[0009]

In order to achieve the above object, the present invention provides: (1) An optical glass component having one surface of an optical component holder as a reference surface and one surface bonded to the reference surface. In the optical component device, an adhesive portion provided on one surface of the optical component holder and having a predetermined adhesive area and a predetermined thickness for bonding the optical component holder and the optical glass component with an adhesive,
An optical component device, comprising: an adhesive prevention groove provided around one side of the optical component holder and surrounding the bonding portion, while leaving a part of the reference surface. (2) An optical component device comprising: an optical component holder, a concave portion provided in the optical component holder, and an optical glass component having the bottom surface of the concave portion as a reference surface and one surface bonded to the reference surface. Bonding the optical component holder and the optical glass component provided on the bottom surface with an adhesive
An optical device comprising: a bonding portion having a predetermined bonding area and a predetermined thickness; and an anti-adhesion groove surrounding the circumference of the bonding portion and provided on a bottom surface of the concave portion while leaving a part of the reference surface. Parts equipment. It is what constituted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram of a main part configuration of an embodiment of the present invention. In the figure, the configuration of the same symbol as FIG. 3 represents the same function. Hereinafter, only differences from FIG. 3 will be described.

[0011] adhesive portion 11 is provided on the bottom surface 21 of the recess, by means of an adhesive and an optical component holder 1 and the optical glass component 3 to have a with a predetermined thickness predetermined bonding area. The adhesion preventing groove 12 is provided on the bottom surface 21 of the concave portion while leaving a part of the reference surface 21 surrounding the periphery of the adhesion portion 11.

In the above configuration, in order to assemble the optical component device shown in FIG.
An adhesive may be arranged, one surface of the optical glass component 3 may be pressed against the bottom surface 21 of the concave portion, and the optical component holder 1 and the optical glass component 3 may be bonded with the adhesive.

As a result, since the bonding portion 11 and the bonding prevention groove 12 are provided, the following effects can be obtained. (1) The length direction of the bonding part 11 is short, and the thickness direction is thick.
Since it can be set freely, the optimal amount of adhesive can be adopted.
The bonding portion 11 having a predetermined bonding area and a predetermined thickness can be formed, and the flow of the adhesive to the side surface of the concave portion 2 can be prevented, and the stress generated inside the optical glass component 3 can be reduced.

Therefore, an optical component device which can prevent the occurrence of cracks inside the optical glass component 3 can be obtained.

(2) Since the bonding surface 11 and the reference surface 21 can be separated from each other, an optical component device in which the positioning accuracy does not deteriorate even when fixing by bonding is obtained.

(3) Since the optical glass component 3 can be brought into close contact with the reference surface 21 by utilizing the curing shrinkage of the adhesive, the holding plate 5, the cushioning material 7, and the screw 6 become unnecessary, and the number of components is reduced. It is possible to reduce the cost and obtain an inexpensive optical component device.

(4) Since the optical glass component 3 is arranged in the concave portion 2, positioning of the optical glass component 3 is easy, and an optical component device with good assembling accuracy can be obtained. Further, since the optical glass component 3 is disposed in the concave portion 2, an optical component device that can easily protect the optical glass component 3 can be obtained. (5) Prevent adhesion to optical component holder 1 from reference surface 21 side
Since the mounting surface of the groove 12 and the bonding portion 11 can be processed,
The predetermined adhesion area and the predetermined thickness of the part 11 are easily dimensionally accurate.
Optical device that can be formed at low cost
You.

FIG. 2 is an explanatory diagram of a main part configuration of another embodiment of the present invention. In the figure, the configuration of the same symbol as FIG. 3 represents the same function. Hereinafter, only differences from FIG. 3 will be described.

The bonding portion 33 is provided on one surface 32 of the optical component holder 31 and bonds the optical component holder 31 and the optical glass component 3 with an adhesive, and has a predetermined bonding area and a predetermined thickness.
Yes to. The adhesion preventing groove 34 is provided on the one surface 32 of the optical component holder 31 while leaving a part of the reference surface 32 surrounding the adhesion portion 33.

In the above configuration, in order to assemble the optical component device shown in FIG.
Then, an adhesive is disposed on the optical component holder 31 and one surface of the optical glass component 3 is pressed against one surface of the optical component holder 31.
And the optical glass component 3 may be bonded with an adhesive.

As a result, since the bonding portion 33 and the bonding prevention groove 34 are provided, the following effects can be obtained. (1) The length direction of the bonding portion 33 is short, and the thickness direction is thick.
Since it can be set freely, it is possible to form the bonding portion 33 in which the optimum amount of the adhesive can be adopted, and it is possible to reduce the stress generated inside the optical glass component 3.

Accordingly, an optical component device which can prevent cracks from occurring inside the optical glass component 3 can be obtained.

(2) Since the bonding surface 33 and the reference surface 32 can be separated from each other, the optical glass component 3 can directly contact the reference surface 32 even if fixing is performed by bonding, and the positioning accuracy does not deteriorate. An optical component device is obtained.

(3) Since the optical glass component 3 can be brought into close contact with the reference surface 32 by utilizing the curing shrinkage of the adhesive, the holding plate 5, the cushioning material 7, and the screw 6 become unnecessary, and the number of components is reduced. It is possible to reduce the cost and obtain an inexpensive optical component device.

(4) Since the optical component holder 31 may be a flat surface, the contact state between the reference surface 32 and the optical glass component 3 can be directly visually confirmed, and the assembling accuracy can be easily secured. An optical component device is obtained.

(5) Since the optical component holder 31 may be flat, an optical component device which can be easily incorporated into the entire device as a component of the optical system can be obtained.

(6) The optical component holder 31 may be flat, so that the optical component holder 31 can be easily manufactured and an inexpensive optical component device can be obtained. (7) The optical component holder 31 is prevented from bonding from the reference surface 32 side.
Since the mounting surface of the stop groove 34 and the bonding portion 33 can be machined,
The predetermined adhesion area and the predetermined thickness of the attachment part 33 are easily dimensionally accurate.
Good optical component device that can be formed at low cost
It is.

It should be noted that the foregoing description has been directed to specific preferred embodiments for the purpose of illustration and illustration of the invention. Therefore, the present invention is not limited to the above-described embodiments, and includes many more modifications without departing from the spirit thereof.
This includes deformation.

[0029]

As described above, according to the first aspect of the present invention,
According to this, since the bonding portion and the bonding prevention groove are provided, the following effects can be obtained. (1) Since the length of the bonding portion can be set to be short and the thickness direction can be freely set, the bonding portion can be configured so that the optimum amount of the adhesive can be used, and the adhesive flows into the side surface of the concave portion. And the stress generated inside the optical glass component can be reduced.

Therefore, an optical component device capable of preventing the occurrence of cracks inside the optical glass component can be obtained.

(2) Since the bonding surface and the reference surface can be separated from each other, an optical component device in which the positioning accuracy is not degraded even when fixing by bonding is obtained.

(3) Since the optical glass component can be brought into close contact with the reference surface by utilizing the curing shrinkage of the adhesive, a holding plate, a cushioning material, and screws are not required, the number of components can be reduced, and the cost is low. An optical component device is obtained.

(4) The optical component holder may be flat.
To visually check the contact state between the reference surface and the optical glass part
To ensure assembly accuracy easily.
Is obtained. (5) Since the optical component holder may be flat, the optical system can be configured.
Optics that can be easily integrated into the entire device
A component device is obtained. (6) Since the optical component holder may be flat, the optical component holder
An inexpensive optical component device that is easy to make rudder can be obtained.

As described above, according to the second aspect of the present invention, since the bonding portion and the bonding prevention groove are provided, the following effects can be obtained. (1) Since the length of the bonding portion can be set to be short and the thickness direction can be set freely, the bonding portion can be configured so that the optimum amount of the adhesive can be used, and the adhesive flows into the side surface of the concave portion. And the stress generated inside the optical glass component can be reduced.

Accordingly, an optical component device capable of preventing the occurrence of cracks inside the optical glass component can be obtained.

(2) Since the bonding surface and the reference surface can be separated from each other, an optical component device in which the positioning accuracy is not degraded even when fixing by bonding is obtained.

(3) By utilizing the curing shrinkage of the adhesive, the optical glass component can be brought into close contact with the reference surface, so that a holding plate, a cushioning material, and screws are not required, the number of components can be reduced, and the cost is low. An optical component device is obtained.

(4) The optical glass component is arranged in the concave portion
Therefore, positioning of optical glass parts is easy and assembly
And an optical component device with good accuracy can be obtained. Also in the recess
Optics for easy protection of optical glass parts
A component device is obtained.

[0039]

[0040]

Therefore, according to the present invention, the occurrence of cracks in the optical glass part can be prevented, and the assembling accuracy is improved.
An inexpensive optical component device can be realized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a main part configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part configuration of another embodiment of the present invention.

FIG. 3 is an explanatory diagram of a configuration of a conventional example generally used in the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Optical component holder 2 Depression 21 Bottom surface (reference surface) 3 Optical glass component 11 Adhesion part 12 Adhesion prevention groove 31 Optical component holder 32 One surface (reference surface) 33 Adhesion part 34 Adhesion prevention groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G02B 7/00

Claims (2)

(57) [Claims] 1. An optical component device comprising an optical glass component having one surface of an optical component holder as a reference surface and one surface bonded to the reference surface, wherein the optical component holder and the optical component are provided on one surface of the optical component holder. Predetermined for bonding glass parts with adhesive
An adhesive portion having an adhesive area and a predetermined thickness, and an adhesive preventing groove provided around one surface of the optical component holder and leaving a part of the reference surface around the adhesive portion. Optical parts equipment. 2. An optical component device comprising: an optical component holder; a concave portion provided in the optical component holder; and an optical glass component having a bottom surface of the concave portion as a reference surface and one surface bonded to the reference surface. A predetermined bonding area provided on the bottom surface of the concave portion and bonding the optical component holder and the optical glass component with an adhesive;
An optical component device comprising: a bonding portion having a predetermined thickness; and an adhesion preventing groove surrounding the bonding portion and provided on a bottom surface of the concave portion while leaving a part of the reference surface.