JP2010008800A - Optical component and optical device - Google Patents

Optical component and optical device Download PDF

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Publication number
JP2010008800A
JP2010008800A JP2008169217A JP2008169217A JP2010008800A JP 2010008800 A JP2010008800 A JP 2010008800A JP 2008169217 A JP2008169217 A JP 2008169217A JP 2008169217 A JP2008169217 A JP 2008169217A JP 2010008800 A JP2010008800 A JP 2010008800A
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Japan
Prior art keywords
material
optical element
frame
linear expansion
optical
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JP2008169217A
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Japanese (ja)
Inventor
Toshio Hirose
Minoru Ichijo
Masaki Sekine
Hideki Shinohara
稔 一條
俊夫 広瀬
秀樹 篠原
正樹 関根
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Hitachi Maxell Ltd
日立マクセル株式会社
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Priority to JP2008169217A priority Critical patent/JP2010008800A/en
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Application status is Pending legal-status Critical

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Abstract

Provided is a technique capable of suppressing the occurrence of damage even when mounted on a finished product by welding or soldering.
In an optical component having an annular frame and an optical element that is heated and pressed in the frame and is held by the frame, the average linear expansion of the material of the optical element is achieved. The coefficient is smaller than the average linear expansion coefficient of the material of the frame body 11, and the Young's modulus of the material of the optical element 12 is 90 GPa or less. Further, when the average linear expansion coefficient of the material of the frame 11 from room temperature to 200 ° C. is Appm, and the average linear expansion coefficient of the material of the optical element 12 from room temperature to 200 ° C. is Bppm, A and B are “ B + 1 ≦ A ≦ B + 5 ”is selected.
[Selection] Figure 2

Description

  The present invention relates to an optical component and the like, and more particularly, to an optical component made of a lens with a frame manufactured by molding.

  Optical elements such as lenses used in optical communications, lenses mounted on DVD pickup heads, and lenses used in digital cameras have high mounting accuracy, airtightness, and mounting strength when mounted on the device. Required. In order to satisfy such a requirement, a technique for holding a lens in a lens holder is known.

For example, in Patent Document 1, a spherical lens material is inserted into a through hole of a lens holder and heated, and the heated lens material is pressed and deformed by a mold so as to be crimped to the inner surface of the hole of the lens holder. A technique for forming a lens optical surface is described.
In Patent Document 2, a holding member (lens holder) formed of a material having a linear expansion coefficient larger than that of the lens material is heated, and the pressure-molded lens material is inserted into the heated holding member. In addition, a technique is described in which the lens material and the holding member are cooled and the lens material is held and fixed by thermal contraction of the holding member.
In Patent Document 3, a protrusion is provided in a holder (lens holder) that holds the optical lens, and a hole that presses and holds the protrusion is provided in the optical lens so that the optical lens does not fall off the holder. Techniques for doing so are described.

JP-A-3-265529 JP-A-4-21528 JP-A-8-75973

When mounting an optical component that holds an optical element such as a lens on a frame (lens holder) on a DVD pickup head or a digital camera, it may be mounted with point welding or soldering outside the frame. is there. And when performing point welding or soldering with respect to an optical component, there existed a problem that an optical element will be damaged.
Therefore, an object of the present invention is to provide an optical component that can suppress the occurrence of damage even if it is mounted on a finished product by welding or soldering.

For this purpose, the optical component according to the present invention has an annular frame and an optical element that is heated and pressure-molded in the frame and held by the frame. The expansion coefficient is smaller than the average linear expansion coefficient of the material of the frame, and the Young's modulus of the material of the optical element is 90 GPa or less.
Here, when the average linear expansion coefficient of the frame material from room temperature to 200 ° C. is Appm, and the average linear expansion coefficient of the optical element material from room temperature to 200 ° C. is B ppm, A and B are “B + 1”. It is preferable that “≦ A ≦ B + 5” is satisfied. The optical element preferably includes at least one material selected from the group consisting of optical glass, low-melting glass, and ultra-low melting glass. Moreover, it is preferable that the material of the frame includes at least one material selected from the group consisting of stainless steel, Starbucks (registered trademark), Inconel (registered trademark), die steel, and steel.

The optical device according to the present invention includes an annular frame and an optical element that is heated and pressed in the frame and is held by the frame, and the average linear expansion coefficient of the material of the optical element is Welding or soldering to an optical component whose Young's modulus of the material of the optical element is 90 GPa or less, and at least one point on the outer circumference of the optical component frame, which is smaller than the average linear expansion coefficient of the frame material And a mounted portion on which the optical component is mounted by being attached.
Here, when the average linear expansion coefficient of the frame material from room temperature to 200 ° C. is Appm, and the average linear expansion coefficient of the optical element material from room temperature to 200 ° C. is B ppm, A and B are “B + 1”. It is preferable that “≦ A ≦ B + 5” is satisfied.

  According to the present invention, the optical element can be prevented from being damaged even if it is mounted on a finished product by welding or soldering.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view showing an overall configuration of an optical component 10 according to the present embodiment, and FIG. 2 is a cross-sectional view taken along line XX of FIG.
The optical component 10 includes an annular frame body 11 and an optical element (lens) 12 that is molded by heating and softening an optical element base material inside the frame body 11.

Next, an apparatus for manufacturing the optical component 10 and a method for manufacturing the optical component 10 will be described.
FIG. 3 is a configuration diagram showing a molding apparatus 100 that manufactures the optical component 10 by molding.
The molding apparatus 100 includes a lower mold (lower mold) 110 and an upper mold (upper mold) 112 for molding the optical element 12, and lower soaking that maintains the lower mold 110 and the upper mold 112 at a predetermined temperature. A plate 114 and an upper soaking plate 116 are provided. The molding apparatus 100 also includes a lower heater 118 and an upper heater 120 that raise the temperature of the lower mold 110 and the upper mold 112. The molding apparatus 100 also includes a pressure cylinder 124 that moves the upper mold 112, a sleeve 125 that regulates the operation of the upper mold 112, a nitrogen inlet 126 and a nitrogen exhaust 128 that control the molding environment of the optical element. And a molding chamber 130 for accommodating the lower mold 110, the upper mold 112, and the like.

  An optical component 10 is manufactured by molding the optical element base material 12a on which the lower mold 110 and the upper mold 112 are placed and softened by the mold press method to form the optical element 12. The lower mold 110 and the upper mold 112 are made of a material excellent in heat resistance such as WC and SiC. Further, on the surface where the lower mold 110, the upper mold 112, and the optical element base material 12a are in contact with each other, a noble metal such as platinum, iridium, palladium, or an alloy thereof, or DLC (Diamond) is used to ensure releasability. Release films 111 and 113 made of like carbon) are formed, respectively.

  Lower soaking plate 114 and upper soaking plate 116 are mounted on lower heater 118 and upper heater 120, respectively. The lower soaking plate 114 and the upper soaking plate 116 serve as a thermal buffer (thermal buffer), and the heat received from the lower heating heater 118 and the upper heating heater 120 does not interfere with the production of the optical component 10. To the lower mold 110 and the upper mold 112 in a uniform state. A control unit (not shown) controls the lower heater 118 and the upper heater 120 so that the surface of the lower mold 110 and the surface of the upper mold 112 have a temperature suitable for molding.

The pressure cylinder 124 is a drive system that moves the upper mold 112 fixed to the upper heater 120 and the upper soaking plate 116 up and down. The operation is controlled by a control means (not shown).
Further, the nitrogen introduction port 126 and the nitrogen exhaust port 128 prevent the oxidation at high temperature by using nitrogen as the mold atmosphere during molding.

A manufacturing process in which the molding apparatus 100 having the above configuration molds the optical element base material 12a to form the optical element 12 and manufactures the optical component 10 will be described below.
First, the frame body 11 is arranged around the abutting surface between the lower mold 110 and the upper mold 112 of the molding apparatus 100. Then, the optical element base material 12a is placed between the lower mold 110 on which the release film 111 is formed and the upper mold 112 on which the release film 113 is formed, and the optical element base material 12a is put into the molding apparatus 100. Deploy.

Next, nitrogen is introduced from the nitrogen inlet 126 using an exhaust pump and a processing gas introduction pump (not shown), and the air inside the molding apparatus 100 is replaced with nitrogen gas. Then, the temperature of the lower heater 118 and the upper heater 120 is increased, and the optical element base 12a is sufficiently heated to the transition point (transition temperature) Tg of the optical element base 12a in a nitrogen atmosphere. The temperature is increased to (bending temperature) At and the optical element base material 12a is softened.
When the temperature becomes near the yield temperature At, the upper die 112 is moved by the pressure cylinder 124 and pressed by the lower die 110 and the upper die 112 to mold the optical element base material 12a.

FIG. 4 is a view showing a state of the optical element base material 12a at the time of molding.
The optical element base material 12a spreads outward by pressure applied by the lower mold 110 and the upper mold 112 during pressing, and is interposed between the lower mold 110 and the upper mold 112 via the release films 111 and 113. It is housed in a gap that can be At this time, the outer peripheral portion of the optical element base material 12a expands until it contacts the frame body 11, and the optical element 12 and the frame body 11 are welded.

Thereafter, the molding apparatus 100 is cooled to the transition temperature Tg while the pressure is applied, and the pressure of the upper mold 112 is further released, for example, cooled to room temperature, and the optical component 10 (see FIGS. 1 and 2) is taken out.
During cooling, the frame 11 and the optical element 12 contract. At the time of this contraction, if the linear expansion coefficient of the frame 11 is larger than the linear expansion coefficient of the optical element 12, the frame 11 tightens the optical element 12.

Next, a method of mounting the optical component 10 molded as described above on a finished product 20 such as a digital camera or a DVD pickup head will be described.
FIG. 5 is a diagram for explaining how the optical component 10 is mounted on the finished product 20.
As shown in FIG. 5A, the optical component 10 is inserted into the hole 22 provided in the housing 21 of the finished product 20, for example, and the circumference between the outer side of the frame 11 of the optical component 10 and the hole 22. Weld or solder the upper one point. As a result, the optical component 10 is fixed to the housing 21 and mounted on the finished product 20.

Alternatively, as shown in FIG. 5B, the optical component 10 is placed on the semiconductor substrate 23 provided in the finished product 20 and soldered to one point on the outer circumference of the frame body 11. Apply. As a result, the optical component 10 is fixed to the semiconductor substrate 23 and mounted on the finished product 20.
In other words, the finished product 20 as an optical device is welded or soldered to the optical component 10 composed of the frame body 11 and the optical element 12 and at least one point on the outer circumference of the frame body 11. A case 21 or a semiconductor substrate 23 is provided as an example of a mounted portion on which the optical component 10 is mounted.

Below, the material of the frame 11 and the optical element 12 of the optical component 10 molded and mounted as described above will be described.
First, changes in the state of the frame 11 and the optical element 12 when the optical component 10 is molded will be described.
When the optical component 10 is molded, the optical element base material 12a is brought into contact with the frame 11 in a heated and softened state, and then cooled. Thereby, the optical element 12 and the frame 11 contract. When the linear expansion coefficient of the frame body 11 is larger than the linear expansion coefficient of the optical element 12 during the contraction, the frame body 11 tightens the optical element 12. As a result, the optical element 12 is more firmly held by the frame body 11.
On the other hand, when the linear expansion coefficient of the frame 11 is smaller than the linear expansion coefficient of the optical element 12, the optical element 12 positioned on the inner side tends to contract more than the frame 11 positioned on the outer side. The adhesive strength between the optical element 12 and the frame 11 is reduced.

Next, changes in the state of the frame 11 and the optical element 12 when the optical component 10 is mounted on the finished product 20 by welding or soldering will be described.
When heat is applied to one point on the outer circumference of the frame 11 of the optical component 10 for welding or soldering, the frame 11 and the optical element 12 that have higher thermal conductivity first expand. For example, when the frame 11 is a metal and the optical element 12 is glass, the frame 11 expands first because it has a higher thermal conductivity. Regarding the optical element 12, the portion in the vicinity of the portion to which heat is applied expands in the same manner as the frame 11, but it is difficult for heat to be transmitted to the portion on the opposite side in the circumferential direction from the portion to which heat is applied. The amount of expansion relative to the frame 11 is insufficient. Therefore, the frame 11 and the optical element 12 are about to be separated.

  Thereafter, when the welding or soldering is completed, the frame body 11 and the optical element 12 radiate heat. At that time, the member having the higher thermal conductivity contracts first between the frame 11 and the optical element 12. For example, when the frame 11 is a metal and the optical element 12 is glass, the frame 11 contracts first because it has a higher thermal conductivity. Since the optical element 12 is in close contact with the frame 11 in the vicinity of the heated portion, the optical element 12 quickly dissipates heat and contracts in the same manner as the frame 11. On the other hand, the portion on the opposite side in the circumferential direction from the portion to which heat is applied contracts more slowly than the frame body 11 because of insufficient adhesion to the frame body 11 and / or low thermal conductivity. . When the linear expansion coefficient of the frame body 11 is larger than the linear expansion coefficient of the optical element 12, a force tightened from the frame body 11 acts on the optical element 12.

  In view of the changes in the state of the frame 11 and the optical element 12 as described above, the respective materials are preferably the materials described below. The optical element 12 is selected from glass materials, particularly optical glass, low-melting glass, and ultra-low-melting glass so that the optical component 10 can be molded using the above-described method. Further, the frame 11 is made of, for example, stainless steel, Stabux (registered trademark), Inconel (registered trademark), die steel, or steel, so that it can withstand the heat generated when the optical element 12 is molded. Shall be selected. The glass material should not contain lead.

  First, it is preferable that the average linear expansion coefficient of the material of the frame 11 is larger than the average linear expansion coefficient of the material of the optical element 12 in the temperature range during molding and mounting. This is due to the following reason. When the average linear expansion coefficient of the optical element 12 is larger than the average linear expansion coefficient of the frame body 11, when the optical component 10 is molded, the adhesive strength between the optical element 12 and the frame body 11 is small as described above. Become. Thereafter, when the optical component 10 is mounted, the optical element 12 contracts more than the frame body 11 during heat dissipation after welding or soldering, so that the optical element 12 may fall off the frame body 11. There is. Therefore, it is preferable to select a material in which the average linear expansion coefficient of the material of the frame 11 is larger than the average linear expansion coefficient of the material of the optical element 12 in the temperature range during molding and mounting.

  Next, the optical element 12 is preferably made of a material having a small rigidity. This is due to the following reason. Immediately after applying heat for welding or soldering to one point on the outer circumference of the frame 11 of the optical component 10, due to the difference in thermal conductivity, between the frame 11 and the optical element 12. A force acts to separate them. Thereafter, when radiating heat, if the linear expansion coefficient of the frame body 11 is larger than the linear expansion coefficient of the optical element 12, a force tightened from the frame body 11 acts on the optical element 12. For this reason, if the rigidity of the optical element 12 is large, the optical element 12 cannot follow the deformation of the frame body 11 and a crack may occur in the optical element 12. Therefore, the rigidity of the optical element 12 is reduced in order to easily follow the deformation of the frame 11 accompanying the mounting of the optical component 10.

Generally, the rigidity G is expressed by the following formula (1).
G = E / (2 (1 + γ)) Expression (1)
Here, E is Young's modulus and γ is Poisson's ratio.
Since the Poisson's ratio is not significantly different among glass materials, the magnitude of the rigidity modulus G largely depends on the magnitude of the Young's modulus E. Moreover, it is difficult to measure the rigidity G itself. Therefore, in the following, a desirable material of the optical element 12 is defined by a Young's modulus E instead of the rigidity G.

  Further, considering the followability of the optical element 12 to the frame 11 during heating and heat dissipation, the average linear expansion coefficient of the material of the frame 11 is larger than the average linear expansion coefficient of the material of the optical element 12 as described above. It is preferable to select such a material, but it is preferable that the average linear expansion coefficient of both is close.

Below, based on an Example, the suitable material of the optical component 10 which concerns on this Embodiment is demonstrated in detail. The present invention is not limited to the following examples.
(Examples 1-3 and Comparative Examples 1-4)
As the optical components 10 of Examples 1 to 3 and Comparative Examples 1 to 4, the following materials were selected for the frame 11 and the optical element base material 12a. The material of the optical element 12 was selected from optical glass, low-melting glass, and ultra-low melting glass so that it could be molded.
And ten optical components 10 of Examples 1 to 3 and Comparative Examples 1 to 4 were respectively molded using the apparatus and method described above.
And the welding test which welds with respect to 1 point on the outer periphery of the frame 11 was implemented with respect to the shape | molded optical components 10 of Examples 1-3 and Comparative Examples 1-4.

[Example 1]
Material of optical element 12: Glass material with a linear expansion coefficient of 7.3 ppm and Young's modulus of 79.9 GPa, Material of frame 11: SUS430 with a linear expansion coefficient of 10.4 ppm
[Example 2]
Material of optical element 12: Glass material having a linear expansion coefficient of 9.2 ppm and Young's modulus of 76.2 GPa, Material of frame 11: SUS430 having a linear expansion coefficient of 10.4 ppm
Example 3
Material of optical element 12: Glass material with a linear expansion coefficient of 8.7 ppm and Young's modulus of 75.6 GPa, Material of frame 11: SUS430 with a linear expansion coefficient of 10.4 ppm
[Comparative Example 1]
Material of optical element 12: Glass material with a linear expansion coefficient of 9.4 ppm and Young's modulus of 105.9 GPa, Material of frame 11: SUS430 with a linear expansion coefficient of 10.4 ppm
[Comparative Example 2]
Material of optical element 12: Glass material with linear expansion coefficient of 8.3 ppm and Young's modulus of 112.4 GPa, Material of frame 11: SUS430 with linear expansion coefficient of 10.4 ppm
[Comparative Example 3]
Material of optical element 12: Glass material having a linear expansion coefficient of 7.3 ppm and Young's modulus of 79.9 GPa; Material of frame 11: SUS304 having a linear expansion coefficient of 17.3 ppm
[Comparative Example 4]
Material of optical element 12: Glass material having a linear expansion coefficient of 16.0 ppm and Young's modulus of 62.5 GPa; Material of frame 11: SUS430 having a linear expansion coefficient of 10.4 ppm

〔Evaluation methods〕
An appearance inspection was performed with a microscope on the optical components 10 of Examples 1 to 3 and Comparative Examples 1 to 4 which were subjected to the welding test.
Table 1 shows the results of visual inspection of the optical components 10 of Examples 1 to 3 and Comparative Examples 1 to 4.

  According to the results shown in Table 1, no crack occurred in any of the optical elements 12 of the optical components 10 of Examples 1 to 3. On the other hand, in the optical component 10 of the comparative example 1 and the comparative example 2 using the optical element base material 12a having a larger Young's modulus compared with the optical elements 12 of the first to third examples, three of the ten optical parts 10 respectively. And cracks occurred in the four optical elements 12. From this result, it can be said that the Young's modulus of the material of the optical element 12 is preferably 90 GPa or less in consideration of variation.

  In the optical component 10 of Comparative Example 3, although the Young's modulus of the material of the optical element 12 was 90 GPa or less, cracks occurred in all of the 10 optical elements 12. This is considered to be caused by the difference in linear expansion coefficient between the frame 11 and the optical element 12 being 10 ppm. If the difference between the linear expansion coefficients of both is too large, the difference between the deformation of the optical element 12 and the deformation of the frame body 11 due to the temperature change becomes large, so that the optical element 12 has a greater compressive force or tensile force than the frame body 11. Therefore, it is considered that a crack occurred in the optical element 12. Therefore, as described above, it is preferable that the average linear expansion coefficient of the material of the frame body 11 is larger than the average linear expansion coefficient of the material of the optical element 12, but the amount of deformation due to a temperature change during heating and heat dissipation is taken into consideration. Then, it turns out that the one where both average linear expansion coefficients are near is preferable. Considering the difference between the linear expansion coefficients of the frame 11 and the optical element 12 of the optical component 10 of Examples 1 to 3, the difference between the average linear expansion coefficients of both in the temperature region during molding and mounting is 5 or less. Preferably there is.

  Note that in the optical component 10 of Comparative Example 4, all of the 10 optical elements 12 were dropped from the frame 11. This confirms that the average linear expansion coefficient of the material of the frame 11 is preferably larger than the average linear expansion coefficient of the material of the optical element 12. Accordingly, considering variation, the average linear expansion coefficient of the material of the frame body 11 is preferably at least 1 ppm larger than the average linear expansion coefficient of the material of the optical element 12.

From the above, when the average linear expansion coefficient of the material of the frame 11 is Appm and the average linear expansion coefficient of the material of the optical element 12 is Bppm in the temperature range during molding and mounting, for example, from room temperature to 200 ° C. In addition, it is preferable that A and B satisfy the following formula (2).
B + 1 ≦ A ≦ B + 5 Formula (2)
The Young's modulus of the material of the optical element 12 is preferably 90 GPa or less.

Therefore, first, a material having a Young's modulus of 90 GPa or less is selected from among optical glass, low melting glass, and ultra-low melting glass as the material of the optical element base material 12a. And the average linear expansion coefficient (Appm) from the room temperature of the material of the frame 11 to 200 ° C. is the average linear expansion coefficient (Bppm) of the material selected as the material of the optical element 12 from the normal temperature to 200 ° C. The material of the frame 11 may be selected so as to satisfy “B + 1 ≦ A ≦ B + 5”.
And by selecting the material of the optical component 10 in this way, even if it is mounted on the finished product 20 by welding or soldering to one point on the outer circumference of the frame 11, the optical element 12 It is possible to provide the optical component 10 in which no crack is generated.

It is the perspective view which showed the whole structure of the optical component which concerns on embodiment. It is XX sectional drawing of FIG. It is a block diagram which shows the shaping | molding apparatus which manufactures an optical component by mold shaping. It is the figure which showed the state of the optical element base material at the time of mold forming. It is a figure explaining the mounting aspect to the finished product of an optical component.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Optical component, 11 ... Frame, 12 ... Optical element, 12a ... Optical element base material, 20 ... Completed product, 21 ... Housing, 22 ... Hole, 23 ... Semiconductor substrate, 100 ... Molding apparatus, 110 ... Lower metal Mold, 111, 113 ... Release film, 112 ... Upper mold, 114 ... Lower soaking plate, 116 ... Upper soaking plate, 118 ... Lower heating heater, 120 ... Upper heating heater, 124 ... Pressure cylinder, 125 ... Sleeve 126 126 Nitrogen inlet 128 128 Nitrogen exhaust 130 130 Molding chamber

Claims (6)

  1. An annular frame;
    An optical element heated and pressure-molded in the frame body and held by the frame body,
    An optical component, wherein an average linear expansion coefficient of a material of the optical element is smaller than an average linear expansion coefficient of a material of the frame, and a Young's modulus of the material of the optical element is 90 GPa or less.
  2. When the average linear expansion coefficient of the frame material from room temperature to 200 ° C. is Appm, and the average linear expansion coefficient of the optical element material from room temperature to 200 ° C. is Bppm, A and B are:
    B + 1 ≦ A ≦ B + 5
    The optical component according to claim 1, wherein:
  3.   The optical component according to claim 1, wherein the optical element includes at least one material selected from the group consisting of optical glass, low-melting glass, and ultra-low-melting glass.
  4.   The material of the frame includes at least one material selected from the group consisting of stainless steel, Stabux (registered trademark), Inconel (registered trademark), die steel, and steel. 4. The optical component according to any one of 3 above.
  5. An annular frame and an optical element that is heated and pressure-molded in the frame and held in the frame, and the average linear expansion coefficient of the material of the optical element is the average of the material of the frame An optical component having a Young's modulus of the material of the optical element smaller than the linear expansion coefficient and 90 GPa or less;
    A mounted portion on which the optical component is mounted by welding or soldering to at least one point on the outer circumference of the frame of the optical component;
    An optical apparatus comprising:
  6. When the average linear expansion coefficient of the frame material from room temperature to 200 ° C. is Appm, and the average linear expansion coefficient of the optical element material from room temperature to 200 ° C. is Bppm, A and B are:
    B + 1 ≦ A ≦ B + 5
    The optical device according to claim 5, wherein:
JP2008169217A 2008-06-27 2008-06-27 Optical component and optical device Pending JP2010008800A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011105222A1 (en) * 2010-02-25 2011-09-01 アルプス電気株式会社 Lens unit and method for producing same
CN103189777A (en) * 2010-11-24 2013-07-03 阿尔卑斯电气株式会社 Lens unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215949A (en) * 1991-10-31 1993-08-27 Corning Inc Formation of integral type assembly and formation of sealed precision optical assembly
JP2004317990A (en) * 2003-04-18 2004-11-11 Sony Corp Method and device for fixing lens, and lens body
JP2005208330A (en) * 2004-01-22 2005-08-04 Nippon Sheet Glass Co Ltd Formed optical component with holder and manufacturing method therefor
JP2005215231A (en) * 2004-01-29 2005-08-11 Nippon Sheet Glass Co Ltd Optical component and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215949A (en) * 1991-10-31 1993-08-27 Corning Inc Formation of integral type assembly and formation of sealed precision optical assembly
JP2004317990A (en) * 2003-04-18 2004-11-11 Sony Corp Method and device for fixing lens, and lens body
JP2005208330A (en) * 2004-01-22 2005-08-04 Nippon Sheet Glass Co Ltd Formed optical component with holder and manufacturing method therefor
JP2005215231A (en) * 2004-01-29 2005-08-11 Nippon Sheet Glass Co Ltd Optical component and its manufacturing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011105222A1 (en) * 2010-02-25 2011-09-01 アルプス電気株式会社 Lens unit and method for producing same
CN102763015A (en) * 2010-02-25 2012-10-31 阿尔卑斯电气株式会社 Lens unit and method for producing same
US8493677B2 (en) 2010-02-25 2013-07-23 Alps Electric Co., Ltd. Lens unit and method of making the same
JP5443589B2 (en) * 2010-02-25 2014-03-19 アルプス電気株式会社 Lens unit and manufacturing method thereof
CN102763015B (en) * 2010-02-25 2014-09-03 阿尔卑斯电气株式会社 Lens unit and method for producing same
CN103189777A (en) * 2010-11-24 2013-07-03 阿尔卑斯电气株式会社 Lens unit
JPWO2012070286A1 (en) * 2010-11-24 2014-05-19 アルプス電気株式会社 Lens unit

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