JP2907016B2 - Optical element - Google Patents

Optical element

Info

Publication number
JP2907016B2
JP2907016B2 JP6211168A JP21116894A JP2907016B2 JP 2907016 B2 JP2907016 B2 JP 2907016B2 JP 6211168 A JP6211168 A JP 6211168A JP 21116894 A JP21116894 A JP 21116894A JP 2907016 B2 JP2907016 B2 JP 2907016B2
Authority
JP
Japan
Prior art keywords
holder
optical lens
optical
thermal expansion
expansion coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP6211168A
Other languages
Japanese (ja)
Other versions
JPH0875973A (en
Inventor
一夫 森岡
映治 田中
正二 中村
義昭 池田
明彦 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6211168A priority Critical patent/JP2907016B2/en
Publication of JPH0875973A publication Critical patent/JPH0875973A/en
Application granted granted Critical
Publication of JP2907016B2 publication Critical patent/JP2907016B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06Construction of plunger or mould
    • C03B11/08Construction of plunger or mould for making solid articles, e.g. lenses
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/02Press-mould materials
    • C03B2215/03Press-mould materials defined by material properties or parameters, e.g. relative CTE of mould parts
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00Press-moulding glass
    • C03B2215/79Uniting product and product holder during pressing, e.g. lens and lens holder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Lens Barrels (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明はレンズ等に用いる光学素
子に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical element used for a lens or the like.

【0002】[0002]

【従来の技術】以下、従来の光学素子およびその製造方
法について説明する。
2. Description of the Related Art A conventional optical element and a method for manufacturing the same will be described below.

【0003】従来の光学素子は、特開平4−21528
号公報に示すように、光学ガラス素材をガラスが可塑性
を生じる所定温度まで加熱する第1工程と、加熱した光
学ガラス素材をレンズ形状に加圧成形するとともに、前
記ガラス素材の端部に前記光学ガラス素材の線熱膨張係
数よりも線熱膨張係数の大きい保持具を接触させ、一体
成形する第2工程と、前記所定温度からガラスの転移点
まで前記ガラス素材と前記保持具とを加圧、冷却しなが
ら一体成形する第3工程と、成形した光学ガラス素材を
ガラスの転移点以下に冷却する第4工程とを有した構成
である。
A conventional optical element is disclosed in Japanese Patent Application Laid-Open No. Hei 4-21528.
As shown in the publication, a first step of heating the optical glass material to a predetermined temperature at which the glass becomes plastic, pressing the heated optical glass material into a lens shape, and forming the optical glass material at an end of the glass material A second step of contacting a holder having a larger linear thermal expansion coefficient than the linear thermal expansion coefficient of the glass material and integrally molding, and pressurizing the glass material and the holder from the predetermined temperature to a transition point of glass, This is a configuration having a third step of integrally molding while cooling, and a fourth step of cooling the molded optical glass material to a temperature equal to or lower than the glass transition point.

【0004】[0004]

【発明が解決しようとする課題】上記構成では、ガラス
素材と保持部材との線熱膨張係数の差に応じて、レンズ
の外径を決める胴型寸法と保持部材の内径寸法の設定を
する必要があるとともに、冷却工程に移る挿入温度の設
定をする必要がある。このとき、保持部材の熱収縮によ
る締めつけによりレンズを常に最良に保持するためには
装置内部にあるガラス素材と保持部材との温度を一定に
保つ必要があり、このガラス素材と保持部材との温度が
一定に保てない場合は、レンズへの保持部材の圧力が高
くなったり低くなったりして、レンズに歪みが生じた
り、ガラス素材が保持部材より脱落したりするという問
題点を有していた。
In the above arrangement, it is necessary to set the body size and the inner diameter of the holding member, which determine the outer diameter of the lens, according to the difference in linear thermal expansion coefficient between the glass material and the holding member. In addition, it is necessary to set the insertion temperature at which the process moves to the cooling step. At this time, it is necessary to keep the temperature of the glass material and the holding member inside the apparatus constant in order to always keep the lens best by tightening the holding member due to thermal contraction. If is not kept constant, there is a problem that the pressure of the holding member on the lens increases or decreases, thereby causing distortion in the lens or dropping the glass material from the holding member. Was.

【0005】本発明は上記問題点を解決するものであ
り、レンズに歪みが生ぜず、ガラス素材が保持部材より
脱落することもない光学素子を提供することを目的とし
ている。
An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an optical element in which a lens is not distorted and a glass material does not fall off a holding member.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に本発明は、保持具内にて光学レンズを加熱、加圧成形
して前記光学レンズと前記保持具を一体化した光学素子
であって、前記光学レンズの材質の線熱膨張係数を保持
具の材質の線熱膨張係数よりも大きく設定するととも
に、前記成形段階において前記光学レンズ端部が前記保
持具の内側面に設けられた突出部を包含するよう成形
し、前記突出部によって前記光学レンズの端部に成形さ
れた凹部が、冷却段階においてその熱収縮により前記突
出部を挟持することで前記光学レンズと前記保持具を一
体化させたのである。
In order to achieve the above object, the present invention provides a method for heating and pressure forming an optical lens in a holder.
And an optical element integrating the optical lens and the holder
Holds the linear thermal expansion coefficient of the material of the optical lens.
To be larger than the linear thermal expansion coefficient of
In the molding step, the end of the optical lens is
Molded to include the protrusion provided on the inner surface of the holder
Formed on the end of the optical lens by the protrusion.
During the cooling stage, the recessed portion has the protrusion due to its heat shrinkage.
By holding the projection, the optical lens and the holder are brought together.
It was embodied.

【0007】[0007]

【作用】上記構成により、光学レンズの線熱膨張係数を
保持具の線熱膨張係数よりも大きくしているので、光学
レンズに保持具による外圧が生じることがなく、つま
り、光学レンズの歪みが生じることがなく、光学レンズ
の端部に形成された凹部が保持具の内周側面に設けられ
た突出部を挟持するので、光学レンズ素材が保持部より
脱落することがないのである。
According to the above construction, since the linear thermal expansion coefficient of the optical lens is made larger than the linear thermal expansion coefficient of the holder, no external pressure is generated on the optical lens by the holder. This does not occur, and the concave portion formed at the end of the optical lens sandwiches the protrusion provided on the inner peripheral side surface of the holder, so that the optical lens material does not fall off the holder.

【0008】[0008]

【実施例】(実施例1) 以下、本発明における光学素子の一実施例について図面
を参照しながら説明する。図1は本発明における光学素
子を示す断面図である。
Embodiment (Embodiment 1) Hereinafter, an embodiment of an optical element according to the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an optical element according to the present invention.

【0009】図1に示すように、本発明の光学素子は、
フランジ部8を有した光学レンズ10と、この光学レン
ズ10を保持する保持具1とを備え、この保持具1はそ
の内側面に断面形状が円状の突出部2を有し、光学レン
ズ10はその端部であるフランジ部8に保持具1の突出
部2を圧接して挟持する凹部として穴9を有している。
また、光学レンズ10の材質はガラスとし、保持具1の
材質はニッケル合金等の金属として、光学レンズ10の
材質の線熱膨張係数を保持具1の材質の線熱膨張係数よ
りも大きくしている。このとき、光学レンズ10に用い
たガラスの線熱膨張係数は70〜100×10-7(10
0〜300℃)程であり、保持具1に用いたニッケル合
金の線熱膨張係数40〜60×10-7程である。
As shown in FIG. 1, the optical element of the present invention comprises:
An optical lens 10 having a flange 8 and a holder 1 for holding the optical lens 10 are provided. The holder 1 has a projection 2 having a circular cross section on its inner surface. Has a hole 9 as a concave portion for holding the projecting portion 2 of the holder 1 in pressure contact with the flange portion 8 as an end thereof.
The material of the optical lens 10 is glass, the material of the holder 1 is a metal such as a nickel alloy, and the linear thermal expansion coefficient of the material of the optical lens 10 is made larger than the linear thermal expansion coefficient of the material of the holder 1. I have. At this time, the glass used for the optical lens 10 has a linear thermal expansion coefficient of 70 to 100 × 10 −7 (10
0 to 300 ° C.), and the linear thermal expansion coefficient of the nickel alloy used for the holder 1 is about 40 to 60 × 10 −7 .

【0010】上記構成の光学素子について、以下その動
作について説明する。光学レンズ10にはその端部に保
持具1の突出部2を圧接して挟持する穴9を設けている
ので、保持具1が穴9に挟みこまれ光学レンズ10の脱
落がない。また、光学レンズ10には保持具1による外
圧が生じないので、光学レンズ10の歪みも生じること
がない。さらに、保持具1はニッケル合金等の金属なの
で、光学機器へ光学素子を取り付ける際、ハンダ付けが
容易である。
The operation of the optical element having the above configuration will be described below. Since the optical lens 10 is provided at its end with a hole 9 for pressing and holding the protrusion 2 of the holder 1, the holder 1 is inserted into the hole 9 and the optical lens 10 does not fall off. Further, since no external pressure is generated in the optical lens 10 by the holder 1, the optical lens 10 is not distorted. Furthermore, since the holder 1 is a metal such as a nickel alloy, it is easy to solder the optical element to an optical device.

【0011】また、光学レンズ10の材質は線熱膨張係
数が70〜100×10-7(100〜300℃)程のガ
ラスとし、保持具1の材質は線熱膨張係数が40〜60
×10-7程のニッケル合金等の金属として、光学レンズ
10の材質の線熱膨張係数を保持具1の材質の線熱膨張
係数よりも大きくしている。これにより、光学レンズ1
0の材質と保持具1の材質の線熱膨張係数の違いから、
保持具1の突出部2は、光学レンズ10の穴9に挟持さ
れ、光学レンズ10は保持具1に確実に保持される。
The material of the optical lens 10 is glass having a linear thermal expansion coefficient of about 70 to 100 × 10 −7 (100 to 300 ° C.), and the material of the holder 1 is a glass having a linear thermal expansion coefficient of 40 to 60.
As a metal such as a nickel alloy of about × 10 −7, the linear thermal expansion coefficient of the material of the optical lens 10 is larger than the linear thermal expansion coefficient of the material of the holder 1. Thereby, the optical lens 1
From the difference between the linear thermal expansion coefficient of the material of
The projecting portion 2 of the holder 1 is sandwiched between the holes 9 of the optical lens 10, and the optical lens 10 is securely held by the holder 1.

【0012】このように本実施例によれば、保持具1の
突出部2が光学レンズ10の穴9に挟持されるので、光
学レンズ10は保持具1に確実に保持され、保持具1か
らの光学レンズ10の脱落がない。また、光学レンズ1
0には保持具1による外圧が生じないので、光学レンズ
10の歪みも生じることがない。さらに、保持具1はニ
ッケル合金等の金属なので、光学機器へ光学素子を取り
付ける際、ハンダ付けが容易である。
As described above, according to the present embodiment, since the projection 2 of the holder 1 is sandwiched by the hole 9 of the optical lens 10, the optical lens 10 is securely held by the holder 1, and Of the optical lens 10 does not fall off. Optical lens 1
Since no external pressure is generated by the holder 1 at 0, distortion of the optical lens 10 does not occur. Furthermore, since the holder 1 is a metal such as a nickel alloy, it is easy to solder the optical element to an optical device.

【0013】(実施例2) 以下、本発明における光学素子の製造方法の一実施例に
ついて図面を参照しながら説明する。図2,図3は光学
素子の製造工程を示す工程図である。
Embodiment 2 Hereinafter, an embodiment of a method for manufacturing an optical element according to the present invention will be described with reference to the drawings. FIG. 2 and FIG. 3 are process diagrams showing the manufacturing process of the optical element.

【0014】図2,図3に示すように、光学素子の製造
方法は、第1工程として、ガラスからなる光学レンズ素
材3の光軸を制御するタングステンカーバイトからなる
胴型4と、タングステンカーバイトからなる上金型6お
よび下金型7とによって、突出部のある2つのニッケル
合金からなる保持具1に挟まれた光学レンズ素材3を位
置決めするとともに、ガラスが可塑性を生じる所定温度
まで加熱する。このとき、光学レンズに用いたガラスの
線熱膨張係数は70〜100×10-7(100〜300
℃)程であり、保持具に用いたニッケル合金の線熱膨張
係数40〜60×10-7程である。
As shown in FIGS. 2 and 3, in the method of manufacturing an optical element, as a first step, a barrel mold 4 made of tungsten carbide for controlling the optical axis of an optical lens material 3 made of glass; The upper mold 6 and the lower mold 7 made of cutting tools position the optical lens material 3 sandwiched between the holders 1 made of two nickel alloys having protrusions, and are heated to a predetermined temperature at which the glass becomes plastic. I do. At this time, the glass used for the optical lens has a linear thermal expansion coefficient of 70-100 × 10 −7 (100-300).
℃), and the linear thermal expansion coefficient of the nickel alloy used for the holder is about 40 to 60 × 10 -7 .

【0015】第2工程として、加熱した光学レンズ素材
3を上金型6と下金型7とによってレンズ形状に加圧成
形する。同時に、光学レンズ素材3の端部に保持具1の
突出部2を接触させ、光学レンズ素材3の端部が保持具
1の突出部2を包含するように一体成形する。このと
き、保持具1の突出部2は光学レンズ素材3のレンズフ
ランジ部の間に入り込むようにする。
In a second step, the heated optical lens material 3 is pressed into a lens shape by the upper mold 6 and the lower mold 7. At the same time, the protrusion 2 of the holder 1 is brought into contact with the end of the optical lens material 3, and the optical lens material 3 is integrally formed so that the end of the holder 3 includes the protrusion 2 of the holder 1. At this time, the protrusion 2 of the holder 1 is inserted between the lens flanges of the optical lens material 3.

【0016】第3工程として、ガラスが可塑性を生じる
所定温度からガラスの転移点まで、光学レンズ素材3と
保持具1とを加圧、冷却しながら一体成形する。このと
き、スペーサ5により、上金型6と下金型7の平行度お
よび光学レンズ素材3の厚み寸法を制御する。
As a third step, the optical lens material 3 and the holder 1 are integrally molded while being pressurized and cooled from a predetermined temperature at which the glass becomes plastic to a transition point of the glass. At this time, the parallelism of the upper mold 6 and the lower mold 7 and the thickness dimension of the optical lens material 3 are controlled by the spacer 5.

【0017】第4工程として、成形した光学レンズ素材
3をガラスの転移点以下に冷却する。
As a fourth step, the molded optical lens material 3 is cooled to a temperature below the glass transition point.

【0018】上記構成の光学素子の製造方法について、
以下その動作について説明する。光学レンズ素材3は線
熱膨張係数が70〜100×10-7(100〜300
℃)程のガラスとし、保持具1は線熱膨張係数が40〜
60×10-7程のニッケル合金等の金属として、光学レ
ンズ素材3の材質の線熱膨張係数を保持具1の材質の線
熱膨張係数よりも大きくしている。これにより、第3工
程において、ガラスが可塑性を生じる所定温度からガラ
スの転移点まで、光学レンズ素材3と保持具1とが加
圧、冷却しながら一体成形される際、光学レンズ素材3
と保持具1の材質の線熱膨張係数の違いから、保持具1
の突出部2は、光学レンズ素材3の穴9に挟持される。
そして、第4工程において、光学レンズ素材3をガラス
の転移点以下まで冷却することにより、光学レンズ素材
3は保持具1に確実に保持される。
Regarding the method of manufacturing the optical element having the above structure,
The operation will be described below. The optical lens material 3 has a linear thermal expansion coefficient of 70 to 100 × 10 −7 (100 to 300
C), and the holder 1 has a linear thermal expansion coefficient of 40 to
As a metal such as a nickel alloy of about 60 × 10 −7, the linear thermal expansion coefficient of the material of the optical lens material 3 is larger than the linear thermal expansion coefficient of the material of the holder 1. Thereby, in the third step, when the optical lens material 3 and the holder 1 are integrally molded while being pressurized and cooled from a predetermined temperature at which the glass becomes plastic to the transition point of the glass, the optical lens material 3
The difference between the linear thermal expansion coefficient of the material of
Is sandwiched between holes 9 of the optical lens material 3.
Then, in the fourth step, the optical lens material 3 is cooled down to the transition point of glass or lower, so that the optical lens material 3 is securely held by the holder 1.

【0019】また、上金型6および下金型7にはテーパ
11およびテーパ12とを設けており、保持具1を下金
型7に挿入しやすくするとともに、光学レンズ素材3の
容量バラツキの吸収を図っている。また、保持具1の突
出部2と光学レンズ素材3の接触部分において、必要以
上に圧力が加わらないようにもしている。
The upper mold 6 and the lower mold 7 are provided with a taper 11 and a taper 12, respectively, so that the holder 1 can be easily inserted into the lower mold 7 and the capacity variation of the optical lens material 3 can be reduced. I am trying to absorb it. Also, pressure is not applied more than necessary at the contact portion between the projection 2 of the holder 1 and the optical lens material 3.

【0020】このように本実施例によれば、第3工程、
第4工程において、光学レンズ素材3が保持具1の突出
部2によって確実に保持されるので、第4工程後は、保
持具1からの光学レンズ10の脱落がない。また、光学
レンズ10には保持具1による外圧が生じないので、光
学レンズ10の歪みも生じることがない。
As described above, according to the present embodiment, the third step,
In the fourth step, the optical lens material 3 is securely held by the projection 2 of the holder 1, so that the optical lens 10 does not fall off the holder 1 after the fourth step. Further, since no external pressure is generated in the optical lens 10 by the holder 1, the optical lens 10 is not distorted.

【0021】第1,第2の実施例では、保持具1の材質
として、ニッケル合金等の金属を用い、光学レンズ素材
3の材質としてガラスを用いたが、光学レンズ素材3の
材質および保持具1の材質は、光学レンズ素材3の材質
の線熱膨張係数が保持具1の材質よりも大きくなるもの
であればよい。光学レンズ素材3としては樹脂等を用い
ることができる。また、保持具1の材質として、セラミ
ック等を用いれば、耐食性に優れたものとなる。
In the first and second embodiments, a metal such as a nickel alloy is used as the material of the holder 1 and glass is used as the material of the optical lens material 3. However, the material of the optical lens material 3 and the holder are used. The material 1 may be any material as long as the linear thermal expansion coefficient of the material of the optical lens material 3 is larger than the material of the holder 1. As the optical lens material 3, a resin or the like can be used. Also, if ceramic or the like is used as the material of the holder 1, it will have excellent corrosion resistance.

【0022】さらに、保持具1の突出部2の形状は、半
球形状、三角錐形状とすれば、光学レンズ10の穴9の
一点に応力が集中せず、強度が向上する。
Furthermore, if the shape of the protrusion 2 of the holder 1 is a hemisphere or a triangular pyramid, stress is not concentrated on one point of the hole 9 of the optical lens 10 and the strength is improved.

【0023】[0023]

【発明の効果】以上のように本発明によれば、保持具内
にて光学レンズを加熱、加圧成形して前記光学レンズと
前記保持具を一体化した光学素子であって、前記光学レ
ンズの材質の線熱膨張係数を保持具の材質の線熱膨張係
数よりも大きく設定するとともに、前記成形段階におい
て前記光学レンズ端部が前記保持具の内側面に設けられ
た突出部を包含するよう成形し、前記突出部によって前
記光学レンズの端部に成形された凹部が、冷却段階にお
いてその熱収縮により前記突出部を挟持することで前記
光学レンズと前記保持具を一体化させたので、光学レン
ズに保持具による外圧が生じることがなく、つまり、光
学レンズの歪みが生じることがなく、光学レンズの端部
に形成された凹部が保持具の内周側面に設けられた突出
部を挟持するので、光学レンズ素材が保持部より脱落す
ることがないのである。
As described above, according to the present invention, the inside of the holder
Heat and pressure mold the optical lens with the optical lens
An optical element in which the holder is integrated, wherein the optical
The linear coefficient of thermal expansion of the material of the holder
Set the number larger than the number
The optical lens end is provided on the inner surface of the holder.
Molded to include
The concave part formed at the end of the optical lens
And by pinching the protruding portion by the heat shrinkage,
Since the optical lens and the holder are integrated, no external pressure is generated by the holder on the optical lens, that is, the optical lens is not distorted, and the concave portion formed at the end of the optical lens is held. Since the projecting portion provided on the inner peripheral side surface of the fixture is sandwiched, the optical lens material does not fall off from the holding portion.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明における光学素子を示す断面図FIG. 1 is a sectional view showing an optical element according to the present invention.

【図2】同光学素子の製造方法を示す製造工程図FIG. 2 is a manufacturing process diagram showing a method for manufacturing the optical element.

【図3】同光学素子の製造方法を示す製造工程図FIG. 3 is a manufacturing process diagram showing a method for manufacturing the optical element.

【符号の説明】[Explanation of symbols]

1 保持具 2 突出部 3 光学レンズ素材 4 胴体 5 スペーサ 6 上金型 7 下金型 8 フランジ部 9 穴 10 光学レンズ 11 テーパ 12 テーパ DESCRIPTION OF SYMBOLS 1 Holder 2 Projection part 3 Optical lens material 4 Body 5 Spacer 6 Upper die 7 Lower die 8 Flange part 9 Hole 10 Optical lens 11 Taper 12 Taper

───────────────────────────────────────────────────── フロントページの続き (72)発明者 池田 義昭 京都府綴喜郡田辺町大字大住小字浜55− 12 松下日東電器株式会社内 (72)発明者 橋本 明彦 京都府綴喜郡田辺町大字大住小字浜55− 12 松下日東電器株式会社内 (56)参考文献 特開 平4−21528(JP,A) (58)調査した分野(Int.Cl.6,DB名) G01B 7/02 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshiaki Ikeda 55-12 Ozumi, Oji, Tanabe-cho, Tetsuki-gun, Kyoto Matsushita-Nitto Electric Co., Ltd. 55-12 Shojihama Matsushita Nitto Electric Co., Ltd. (56) References JP-A-4-21528 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) G01B 7/02

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 保持具内にて光学レンズを加熱、加圧成
形して前記光学レンズと前記保持具を一体化した光学素
子であって、前記光学レンズの材質の線熱膨張係数を保
持具の材質の線熱膨張係数よりも大きく設定するととも
に、前記成形段階において前記光学レンズ端部が前記保
持具の内側面に設けられた突出部を包含するよう成形
し、前記突出部によって前記光学レンズの端部に成形さ
れた凹部が、冷却段階においてその熱収縮により前記突
出部を挟持することで前記光学レンズと前記保持具を一
体化させたことを特徴とする光学素子。
An optical lens is heated and pressurized in a holder.
An optical element formed by integrating the optical lens and the holder
And a linear thermal expansion coefficient of the material of the optical lens.
Set the linear thermal expansion coefficient to be larger than the material of the
In the molding step, the end of the optical lens is
Molded to include the protrusion provided on the inner surface of the holder
Formed on the end of the optical lens by the protrusion.
During the cooling stage, the recessed portion has the protrusion due to its heat shrinkage.
By holding the projection, the optical lens and the holder are brought together.
An optical element characterized by being embodied .
【請求項2】 保持具の突出部の形状を半球形状とした
請求項1記載の光学素子。
2. The optical element according to claim 1, wherein the shape of the projection of the holder is hemispherical.
【請求項3】 保持具の突出部の形状を三角錐形状とし
た請求項1記載の光学素子。
3. The optical element according to claim 1, wherein the shape of the protrusion of the holder is a triangular pyramid.
JP6211168A 1994-09-05 1994-09-05 Optical element Expired - Lifetime JP2907016B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6211168A JP2907016B2 (en) 1994-09-05 1994-09-05 Optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6211168A JP2907016B2 (en) 1994-09-05 1994-09-05 Optical element

Publications (2)

Publication Number Publication Date
JPH0875973A JPH0875973A (en) 1996-03-22
JP2907016B2 true JP2907016B2 (en) 1999-06-21

Family

ID=16601541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6211168A Expired - Lifetime JP2907016B2 (en) 1994-09-05 1994-09-05 Optical element

Country Status (1)

Country Link
JP (1) JP2907016B2 (en)

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JP2004271782A (en) * 2003-03-07 2004-09-30 Alps Electric Co Ltd Optical device with holder
JP4231315B2 (en) * 2003-03-25 2009-02-25 アルプス電気株式会社 Method for manufacturing optical element with holder
JP2005148614A (en) * 2003-11-19 2005-06-09 Olympus Corp Variable power optical system and electronic apparatus using same
JP2005156828A (en) * 2003-11-25 2005-06-16 Olympus Corp Variable power optical system and electronic device using the same
JP4508610B2 (en) * 2003-11-17 2010-07-21 オリンパス株式会社 Variable magnification optical system and electronic apparatus using the same
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JP4727487B2 (en) * 2006-03-31 2011-07-20 オリンパス株式会社 Manufacturing method of optical component and mold for molding
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JP7172890B2 (en) * 2019-07-11 2022-11-16 住友電気工業株式会社 optical module

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5772108A (en) * 1980-10-22 1982-05-06 Ricoh Co Ltd Molded lens
JPS5772403U (en) * 1980-10-22 1982-05-04
JPS60126610A (en) * 1983-12-14 1985-07-06 Matsushita Electric Ind Co Ltd Forming lens
JPS61165514U (en) * 1985-04-03 1986-10-14

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