JPS6232351Y2 - - Google Patents
Info
- Publication number
- JPS6232351Y2 JPS6232351Y2 JP11979982U JP11979982U JPS6232351Y2 JP S6232351 Y2 JPS6232351 Y2 JP S6232351Y2 JP 11979982 U JP11979982 U JP 11979982U JP 11979982 U JP11979982 U JP 11979982U JP S6232351 Y2 JPS6232351 Y2 JP S6232351Y2
- Authority
- JP
- Japan
- Prior art keywords
- base
- semiconductor laser
- light emitting
- pickup
- emitting device
- 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
Links
- 239000004065 semiconductor Substances 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
【考案の詳細な説明】
本考案は半導体レーザと、そのレーザ光を記録
媒体上に収束する集光レンズとを備えると共に、
ピツクアツプに取り付け可能に構成した光学式情
報読取装置の発光装置に関する。[Detailed Description of the Invention] The present invention includes a semiconductor laser and a condensing lens that converges the laser beam onto a recording medium.
The present invention relates to a light emitting device of an optical information reading device configured to be attachable to a pickup.
現在、上記の光学式情報読取装置の光源として
半導体レーザを使用した場合、該レーザから発射
されるレーザ光の出射方向、広がり角度、発光位
置等を、ピツクアツプへの取付基準に対して所望
の精度に抑えることは、その構造上、現状の技術
では不可能とされている。しかるに光学式情報読
取装置の光源として用いる場合には、機械的に所
望の位置より光学的に所望の性能で出射させる必
要がある。 Currently, when a semiconductor laser is used as a light source for the above-mentioned optical information reading device, the emission direction, spread angle, light emitting position, etc. of the laser light emitted from the laser are adjusted to the desired accuracy with respect to the mounting standard for the pickup. Due to its structure, it is impossible to suppress it with current technology. However, when used as a light source for an optical information reading device, it is necessary to emit light from a mechanically desired position with a desired optical performance.
そこで、本考案はピツクアツプの取付基準に対
して半導体レーザの発光位置及び出射方向、光の
広がり角度を調整可能に構成して、機械的、光学
的に規格化が可能なる光学式情報読取装置の発光
装置を提供するのが目的である。 Therefore, the present invention is an optical information reading device that can be mechanically and optically standardized by configuring the light emitting position and emitting direction of the semiconductor laser and the spread angle of the light to be adjustable with respect to the pickup mounting standard. The purpose is to provide a light emitting device.
以下、本考案を図面の実施例に基ずいて説明す
ると、第１図は本考案に係る発光装置の一部を切
断した正面図で、第２図は同装置のカバーを取り
外した平面図、第３図は同装置の一部を切断した
側面図である。 Hereinafter, the present invention will be explained based on the embodiments shown in the drawings. Fig. 1 is a partially cutaway front view of a light emitting device according to the present invention, Fig. 2 is a plan view of the device with the cover removed; FIG. 3 is a partially cutaway side view of the device.
上記の図面において、１は直接ピツクアツプに
取り付けられる第１基台で、該基台１の下面１ａ
の中央には集光レンズ２を配設する軸筒３が、下
面１ａと直交方向に突設されている。そして、こ
の軸筒３と下面１ａとがピツクアツプに取り付け
る際の機械的基準に設定されている。又、集光レ
ンズ２は軸筒３内において、その軸方向に移動可
能なるよう配置されている。更に、第１基台１の
上面１ｂには第２基台４が水平方向に移動可能に
配置されているが、上面１ｂは下面１ａと平行に
形成されているので、第２基台４は下面１ａと平
行に移動することになる。そして、第２基台４は
第１基台１の上面１ｂにネジ５で固定されたバネ
６により所望の位置に固定されている。尚、第２
基台４には集光レンズ２と対応する位置に透孔４
ａが形成されている。 In the above drawings, 1 is a first base that is directly attached to the pickup, and the lower surface 1a of the base 1 is
A shaft cylinder 3 in which a condensing lens 2 is disposed is protruded from the center in a direction orthogonal to the lower surface 1a. The shaft cylinder 3 and the lower surface 1a are set as a mechanical reference when the shaft cylinder 3 is attached to a pickup. Further, the condenser lens 2 is disposed within the shaft tube 3 so as to be movable in the axial direction thereof. Further, a second base 4 is disposed on the upper surface 1b of the first base 1 so as to be movable in the horizontal direction, but since the upper surface 1b is formed parallel to the lower surface 1a, the second base 4 is It will move parallel to the lower surface 1a. The second base 4 is fixed at a desired position by a spring 6 fixed to the upper surface 1b of the first base 1 with a screw 5. Furthermore, the second
The base 4 has a through hole 4 at a position corresponding to the condenser lens 2.
a is formed.
７は第３基台で、該基台７は主部７ａと、該主
部７ａの一端から斜め下方向に突設した舌片部７
ｂとから構成されており、主部７ａには半導体レ
ーザ８がネジ９により固定され主部７ａの下面か
ら突出している。そして、第３基台７は舌片部７
ｂをネジ１０により第２基台４の上面に固定して
配置すると共に、主部７ａの下面と第２基台４の
上面との間に離間部１１を形成する。又、主部７
ａの端部にはネジ１２を回転自在かつ抜出不能に
取り付けると共に、第２基台４に回転自在に螺合
する。従つて、ネジ１２を所望方向に回転する
と、主部７ａ、即ち半導体レーザ８は舌片部７ｂ
を支点に上下動し、離間部１１の巾が変化する。
尚、第１基板１の上面１ｂには第２基板４の下面
から突出したネジ１２の先端が衝当しないように
凹部１ｃが形成されている。又、第３基台７はネ
ジ１２とともに、半導体レーザ８に対して、軸筒
３の軸を含む垂直面内の少くとも一方向の角度調
整を行うための調整機構を構成しているが、第３
基台７をアルミニユーム等の熱良導体で形成する
と共に、主部７ａの表面積を大きくすることによ
り放熱機能を兼ねることができる。又、第３基台
７に半導体レーザ８を取り付ける際、必要に応じ
て非点収差補正レンズを配置してもよい。 Reference numeral 7 designates a third base, and the base 7 includes a main portion 7a and a tongue portion 7 that projects obliquely downward from one end of the main portion 7a.
A semiconductor laser 8 is fixed to the main portion 7a with a screw 9 and protrudes from the lower surface of the main portion 7a. The third base 7 is a tongue portion 7
b is fixedly disposed on the upper surface of the second base 4 with screws 10, and a separating portion 11 is formed between the lower surface of the main portion 7a and the upper surface of the second base 4. Also, main part 7
A screw 12 is rotatably and non-removably attached to the end of a, and is rotatably screwed into the second base 4. Therefore, when the screw 12 is rotated in a desired direction, the main portion 7a, that is, the semiconductor laser 8 is turned into the tongue portion 7b.
It moves up and down using the fulcrum as a fulcrum, and the width of the spaced part 11 changes.
Incidentally, a recess 1c is formed in the upper surface 1b of the first substrate 1 so that the tips of the screws 12 protruding from the lower surface of the second substrate 4 do not come into contact with each other. Further, the third base 7 together with the screw 12 constitutes an adjustment mechanism for adjusting the angle of the semiconductor laser 8 in at least one direction in a vertical plane including the axis of the shaft tube 3. Third
By forming the base 7 from a good thermal conductor such as aluminum and by increasing the surface area of the main portion 7a, it can also serve as a heat dissipation function. Further, when attaching the semiconductor laser 8 to the third base 7, an astigmatism correction lens may be arranged as necessary.
１３は第１基台１に取り付けるカバーで、この
カバー１３と第１基台１により密閉空間内に半導
体レーザ８が配置される。 Reference numeral 13 denotes a cover attached to the first base 1, and the semiconductor laser 8 is arranged in a closed space by the cover 13 and the first base 1.
次に本考案の作用について説明すると、半導体
レーザ８からの出射光は第２基台４の透孔４ａを
通り、集光レンズ２で収束されて外部に導き出さ
れる。そこで、第２基台４を水平方向に移動すれ
ば、該基台４と一体に半導体レーザ８が移動し、
該レーザ８の光軸を機械的基準である軸筒３の
軸、即ち集光レンズ２の軸と一致させることが可
能となる。又、第３基台７のネジ１２を所定方向
に回転すると、主部７ａ、即ち半導体レーザ８は
舌片部７ｂを支点に上下動し、機械的基準である
第１基台１の下面１ａ及び軸筒３に対して半導体
レーザ８の発光位置及び出射方向を調整すること
ができる。更に、集光レンズ２を軸筒３の軸方向
に移動すれば、半導体レーザ８との距離が変化
し、その光の分布、即ち広がり角度を調整するこ
とができる。 Next, the operation of the present invention will be described. The light emitted from the semiconductor laser 8 passes through the through hole 4a of the second base 4, is converged by the condenser lens 2, and is guided to the outside. Therefore, if the second base 4 is moved in the horizontal direction, the semiconductor laser 8 will be moved together with the second base 4.
It becomes possible to align the optical axis of the laser 8 with the axis of the shaft cylinder 3, which is a mechanical reference, that is, with the axis of the condenser lens 2. Further, when the screw 12 of the third base 7 is rotated in a predetermined direction, the main portion 7a, that is, the semiconductor laser 8, moves up and down using the tongue portion 7b as a fulcrum, and the lower surface 1a of the first base 1, which is a mechanical reference, moves up and down. Also, the light emission position and emission direction of the semiconductor laser 8 can be adjusted with respect to the shaft cylinder 3. Further, by moving the condensing lens 2 in the axial direction of the barrel 3, the distance from the semiconductor laser 8 changes, and the distribution of the light, that is, the spread angle can be adjusted.
上記のようにして調整することによりピツクア
ツプに取り付ける前に機械的基準に対して機械
的、光学的の性能を所望の規格に合わせることが
可能となる。尚、この際、集光レンズ２から出射
される光量を一定とするように半導体レーザ８に
流れる電流を制御する装置を本考案装置と一体に
設ければ更によい。 By adjusting as described above, it is possible to match the mechanical and optical performance to the desired standard with respect to the mechanical standard before installing it in the pickup. In this case, it is even better if a device for controlling the current flowing through the semiconductor laser 8 so as to keep the amount of light emitted from the condensing lens 2 constant is provided integrally with the device of the present invention.
本考案は叙上のように、半導体レーザ８と、そ
のレーザ光を収束する集光レンズ２とを備えピツ
クアツプに取り付け可能に構成した光学式情報読
取装置の発光装置において、第１基台１の下面１
ａ及び該下面１ａから直交方向に突設した軸筒３
とをピツクアツプ取付時の機械的基準に設定し、
軸筒３にはその軸方向に集光レンズ２を移動可能
に配設し、第１基台１の上面１ｂにはその下面１
ａと平行に移動可能なるよう第２基台４を配置す
ると共に、第２基台４上には半導体レーザ８を固
定した第３基台７を取り付け、この第３基台７を
前記軸筒３の軸を含む平面内の少くとも一方向に
角度調整できるように構成したものである。従つ
て、ピツクアツプに装着する前に下面１ａ及び軸
筒３を機械的基準として機械的、光学的に所望の
性能に調整し規格化することができ、ピツクアツ
プに装着後の調整が不用となる。又、これにより
発光装置相互の互換性を得ることができると共
に、性能、信頼性の面でも有利となる。更に、ピ
ツクアツプ全体としてみたときに、半導体レーザ
８を一つの部品として取り扱わず、発光装置本体
を光源として取り扱うため保持等の面でも有利と
なる副次的効果もある。 As described above, the present invention provides a light emitting device for an optical information reading device that is equipped with a semiconductor laser 8 and a condensing lens 2 that converges the laser beam, and is configured to be attachable to a pickup. Bottom surface 1
a and a shaft cylinder 3 protruding from the lower surface 1a in the orthogonal direction.
and is set as the mechanical standard when installing the pick-up,
A condensing lens 2 is disposed on the shaft tube 3 so as to be movable in its axial direction, and a lower surface 1 is disposed on the upper surface 1b of the first base 1.
The second base 4 is arranged so as to be movable parallel to the axis a, and a third base 7 to which a semiconductor laser 8 is fixed is attached on the second base 4, and this third base 7 is connected to the shaft cylinder. The angle can be adjusted in at least one direction within a plane including the three axes. Therefore, it is possible to mechanically and optically adjust and standardize the lower surface 1a and the barrel 3 to the desired performance using mechanical standards before mounting on the pickup, and no adjustment is required after mounting on the pickup. Moreover, this makes it possible to obtain mutual compatibility between light emitting devices, and is also advantageous in terms of performance and reliability. Furthermore, when looking at the pickup as a whole, the semiconductor laser 8 is not handled as a single component, but the light emitting device itself is handled as a light source, which has a secondary effect that is advantageous in terms of holding, etc.
第１図は本考案に係る発光装置の一部を切断し
た正面図で、第２図は同装置のカバーを取り外し
た平面図、第３図は同装置の一部を切断した側面
図である。
１……第１基台、１ａ……下面、１ｂ……上
面、２……集光レンズ、３……軸筒、４……第２
基台、７……第３基台、８……半導体レーザ。
Fig. 1 is a partially cutaway front view of the light emitting device according to the present invention, Fig. 2 is a plan view of the device with the cover removed, and Fig. 3 is a partially cutaway side view of the device. . DESCRIPTION OF SYMBOLS 1...First base, 1a...Bottom surface, 1b...Top surface, 2...Condenser lens, 3...Axis tube, 4...Second
Base, 7...Third base, 8...Semiconductor laser.
Claims (1)
ンズとを備えピツクアツプに取り付け可能に構成
した光学式情報読取装置の発光装置において、第
１基台の下面及び該下面から直交方向に突設した
軸筒とをピツクアツプ取付時の機械的基準に設定
し、軸筒にはその軸方向に集光レンズを移動可能
に配設し、第１基台の上面にはその下面と平行に
移動可能なるよう第２基台を配置すると共に第２
基台上には半導体レーザを固定した第３基台を取
り付け、この第３基台を前記軸筒の軸を含む平面
内の少くとも一方向に角度調整できるように構成
したことを特徴とする光学式情報読取装置の発光
装置。 In a light emitting device of an optical information reading device, which includes a semiconductor laser and a condensing lens that converges the laser beam, and is configured to be attachable to a pickup, the lower surface of the first base and a shaft tube protruding from the lower surface in a direction perpendicular to the lower surface of the first base are provided. is set as a mechanical reference when mounting the pick-up, a condensing lens is disposed on the shaft cylinder so that it can be moved in the axial direction, and a condenser lens is installed on the top surface of the first base so that it can be moved parallel to the bottom surface of the first base. 2 bases are placed and the 2nd
A third base to which a semiconductor laser is fixed is mounted on the base, and the third base is configured to be adjustable in angle in at least one direction within a plane including the axis of the shaft tube. A light emitting device for an optical information reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11979982U JPS5925629U (en) | 1982-08-06 | 1982-08-06 | Light emitting device of optical information reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11979982U JPS5925629U (en) | 1982-08-06 | 1982-08-06 | Light emitting device of optical information reading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5925629U JPS5925629U (en) | 1984-02-17 |
| JPS6232351Y2 true JPS6232351Y2 (en) | 1987-08-19 |
Family
ID=30274803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11979982U Granted JPS5925629U (en) | 1982-08-06 | 1982-08-06 | Light emitting device of optical information reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5925629U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071895Y2 (en) * | 1984-07-31 | 1995-01-18 | 日本電気ホ−ムエレクトロニクス株式会社 | Cover structure |
| JPS63268130A (en) * | 1987-04-24 | 1988-11-04 | Mitsubishi Electric Corp | Photodetector adjusting mechanism |
-
1982
- 1982-08-06 JP JP11979982U patent/JPS5925629U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5925629U (en) | 1984-02-17 |
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