JPS60172016A - Holo-scanner - Google Patents

Holo-scanner

Info

Publication number
JPS60172016A
JPS60172016A JP59028062A JP2806284A JPS60172016A JP S60172016 A JPS60172016 A JP S60172016A JP 59028062 A JP59028062 A JP 59028062A JP 2806284 A JP2806284 A JP 2806284A JP S60172016 A JPS60172016 A JP S60172016A
Authority
JP
Japan
Prior art keywords
stepped part
flange
lower flange
rubber ring
disk
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.)
Pending
Application number
JP59028062A
Other languages
Japanese (ja)
Inventor
Masaki Narita
昌樹 成田
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP59028062A priority Critical patent/JPS60172016A/en
Publication of JPS60172016A publication Critical patent/JPS60172016A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10Scanning systems
    • G02B26/106Scanning systems having diffraction gratings as scanning elements, e.g. holographic scanners
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005Adaptation of holography to specific applications
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00Substrate bearing the hologram
    • G03H2270/20Shape
    • G03H2270/22Disc shaped

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To clamp easily the upper flange, and to install correctly a hologram disk to the lower flange by making the inter-bottom face distance of the outside peripheral stepped part of the projecting surface of each flange smaller than the sum of the size of thickness of the hologram disk and the free diameter of a rubber ring, when clamping each upper and lower flange faces whose diameter section is roughly a projecting shape. CONSTITUTION:As for each upper and lower flange 30, 10, its diameter section is formed in roughly a projecting shape, and a circular stepped part 10b and a circular stepped part 30b are formed on the outside periphery of a projecting surface of the lower flange 10, and the outside periphery of a projecting surface 30a of the upper flange 30, respectively. Also, the center hole of a hologram disk H, and a rubber ring R whose section is round are fitted into the stepped part 10b and the stepped part 30b, respectively. In this case, a distance between a bottom face 30c of the stepped part 30b and the projecting surface 30a, a distance between a bottom face 10c of the stepped part 10b and the projecting surface 10a, a thickness of the disk H, and a free diameter of the rubber ring R are denoted as t1, t2, t3 and (d), respectively, and set to a relation of t1+t2<t3+d. In such a way, the rubber ring R is deformed elastically and the disk H is fixed to the lower flange 10.

Description

【発明の詳細な説明】 (技術分野) 本発明はホロスキャナーに関し、より詳細には、レーザ
プリンタの光書込み走査に適用しうるホロスキャナーに
関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a holoscanner, and more particularly to a holoscanner that can be applied to optical writing scanning of a laser printer.

(従来技術) ホロスキャナーにおいて、従来、モータ軸に対するホロ
グラムディスクの装着手段は、モータ軸に固着された下
フランジにホログラムディスクを載せて上から上フラン
ジで締め付けろことにより行なわれている。
(Prior Art) Conventionally, in a holoscanner, a hologram disk is mounted on a motor shaft by placing the hologram disk on a lower flange fixed to the motor shaft and tightening the hologram disk from above with the upper flange.

例を以て示せば、第1図において、下フランジ1はモー
タMの軸M1 に接着、圧入、キー等適宜の廻り止め手
段を施されて固定されており、その外周段部にホログラ
ムディスクHが中心穴を嵌入されて載置され、さらに上
から環状の合成樹脂板2を介して上フランジ3により円
周上等間隔に設定されたボルト4で締め付けである。こ
のような締付手段を介してホログラムディスクH’t”
−モータ軸M1 と一体向に回転されることになる。。
To give an example, in FIG. 1, the lower flange 1 is fixed to the shaft M1 of the motor M by gluing, press-fitting, using a key, or other appropriate means for preventing rotation, and the hologram disk H is centered on the outer step of the lower flange 1. It is inserted into the hole and placed, and further tightened from above with bolts 4 set at equal intervals on the circumference by the upper flange 3 via the annular synthetic resin plate 2. Through such a tightening means, the hologram disk H't''
- It will be rotated in one direction with the motor shaft M1. .

このような締付手段においては、モータ軸M1に対して
ホログラムディスクがすべらないようにするべく、ある
程度の締付力が必要であるが、ボルト4の締め付は力が
、殆んど弾性を有しない合成樹脂板2を介して直接、ホ
ログラムディスクHに及ぶため、該ディスクに大きな歪
が発生し、その光学的特性に重大な影響を及ぼす。従っ
て、組立に際しては、ボルト4の円周上告部位での締付
力が均等になる様に、且つその締付トルクの大きさにつ
いても格別の配慮が必要である。
In this type of tightening means, a certain amount of tightening force is required to prevent the hologram disk from slipping with respect to the motor shaft M1, but when tightening the bolt 4, the force almost overcomes the elasticity. Since the hologram disk H is directly affected through the synthetic resin plate 2, which does not have the same structure, large distortion occurs in the disk, which seriously affects its optical characteristics. Therefore, during assembly, special consideration must be given to the magnitude of the tightening torque so that the tightening force at the circumferential portions of the bolts 4 is equalized.

さらに、部品精度によっては、円周上各部での生ずるこ
ともあり、組立が繁雑であるという問題がある。
Furthermore, depending on the precision of the parts, the problem may occur at various parts of the circumference, making assembly complicated.

(目 的) 従って、本発明の目的は、上フランジの締付けに際し、
その締付力に格別の配慮を要せずして下フランジに対す
るホログラムディスクの適正な取付けが可能なホロスキ
ャナーを提供することにある。
(Objective) Therefore, the object of the present invention is to
To provide a holoscanner in which a hologram disk can be properly attached to a lower flange without requiring special consideration to the tightening force.

(tI 成) 本発明の構成を、以下、一実施例に基づいて説明する。(tI formation) The configuration of the present invention will be described below based on one embodiment.

本例では、第2図に示す如く、上フランジ3゜及び下フ
ランジ10について各々直径断面が略凸字状に形成され
ている。そして、下フランジ10の凸面10a の外周
には外周にそう円形状に段部101)が、上フランジ3
0の凸面30a の外周にも円形状の段部30b が形
成されている。
In this example, as shown in FIG. 2, the upper flange 3° and the lower flange 10 each have a substantially convex diameter cross section. On the outer periphery of the convex surface 10a of the lower flange 10, there is a circular step 101) on the outer periphery of the upper flange 3.
A circular step portion 30b is also formed on the outer periphery of the convex surface 30a.

そして、段部10b にはホログラムディスクHの中心
穴が嵌入され、段部30b には断面が円形のゴムリン
グRが嵌入されている。
The center hole of the hologram disk H is fitted into the stepped portion 10b, and a rubber ring R having a circular cross section is fitted into the stepped portion 30b.

ここで、段部30b の底面30c と凸面30aとの
距離をtI +段部lob の底面10c と凸面10
a との距離を12+ ホログラムディスクHな厚さを
ts +ゴムリングHの外力による変形のない状態にお
ける径、所謂、自由径をdとすれば、t、−1−t2<
ts−1−d なる関係に設定されている。
Here, the distance between the bottom surface 30c of the stepped portion 30b and the convex surface 30a is tI + the distance between the bottom surface 10c of the stepped portion lob and the convex surface 10
If the distance from a is 12 + the thickness of the hologram disk H is ts + the diameter of the rubber ring H when it is not deformed by external force, the so-called free diameter is d, then t, -1-t2<
The relationship is set as ts-1-d.

而して、上フランジ3oを下フランジ1oにボルト4で
締め付ければ、凸面1oa と凸面3oaとが密着当接
された時点で一応の締付限度に達する。
Thus, when the upper flange 3o is tightened to the lower flange 1o with the bolts 4, a certain tightening limit is reached when the convex surfaces 1oa and 3oa come into close contact.

そして、このとき、上記t+ 十”t < ts 十d
なろ寸法関係により、ゴムリングRが弾性変形してホロ
グラムディスクHが下フランジ1oに固定される。
At this time, the above t+ 10"t < ts 1d
Due to the round size relationship, the rubber ring R is elastically deformed and the hologram disk H is fixed to the lower flange 1o.

ここで、ゴムリング凡の変形に伴なう弾性力はその環状
の各部にて均一に作用してホログラムディスクHを押圧
する。この弾性力の大きさを、ホログラムディスクHと
下フランジ10との間にすべりを生ぜず、かつ、光学特
性に悪影響を与えない範囲の大きさに設定することはゴ
ムリングHの径及びゴムの・1才質を適当に選択するこ
とにより容易に行なわれる。
Here, the elastic force accompanying the deformation of the rubber ring acts uniformly on each annular portion of the rubber ring and presses the hologram disk H. Setting the magnitude of this elastic force within a range that does not cause slippage between the hologram disk H and the lower flange 10 and does not adversely affect the optical properties is important due to the diameter of the rubber ring H and the rubber・This can be easily done by selecting a suitable quality.

実験によれば、第3図に示す如く、直径6M、、tのゴ
ムリングを用いたときに、すべりを生じさせない最低限
のボルト締付トルクが1.5νf、 Cm であり、ゴ
ムリングの変形量が約1.7龍を越えたときに光学特性
に悪影響を及ぼす歪が生じた。従って、可能な締め付け
の範囲りはゴムリングの圧縮量で0・25〜1・7 朋
までの間であり、かなりの巾がある。
According to experiments, as shown in Figure 3, when using a rubber ring with a diameter of 6M, t, the minimum bolt tightening torque that does not cause slippage is 1.5νf, Cm, and the deformation of the rubber ring. Distortion that adversely affected optical properties occurred when the amount exceeded about 1.7 yen. Therefore, the possible tightening range is from 0.25 to 1.7 in terms of the amount of compression of the rubber ring, which is quite wide.

そして、この圧縮量に対応するボルトの締付トルクも又
、広範囲に及ぶことがわかる。
It can also be seen that the bolt tightening torque corresponding to this amount of compression also ranges over a wide range.

従って、本発明では、凸面10a、3oa 同士が当接
するまでボルト締めすれば、ゴムリング凡の変形によっ
て自動的に、すべりを生ぜずかつ光学特性に悪影響を及
ぼさない力でホログラムディスクHを保持することが可
能となる。
Therefore, in the present invention, if the bolts are tightened until the convex surfaces 10a and 3oa come into contact with each other, the hologram disk H is automatically held by the deformation of the rubber ring with a force that does not cause slippage and does not adversely affect the optical characteristics. becomes possible.

なお、本例では、従来、下フランジ1に形成していたバ
ランス用のねじ穴6を上フランジ30に形成した。
In this example, the balancing screw holes 6, which were conventionally formed in the lower flange 1, are formed in the upper flange 30.

これは、ホログラムディスクHに厚さのばらつきがある
ためこのばらつきによる記録面の変動を回避すべく、該
ディスクの取付基準面たる下面にホログラム記録面を合
わせた関係で、ねじ六6を加工する際に工具が干渉して
ホログラム記録面を損うことがあったのでこれを解消す
るためである。
This is because the hologram disk H has variations in thickness, and in order to avoid fluctuations in the recording surface due to this variation, the screw 6 is machined so that the hologram recording surface is aligned with the bottom surface, which is the mounting reference surface of the disk. This is to eliminate the problem that the hologram recording surface could be damaged due to tool interference.

(効 果) 采発明によれば、適正なボルト締付力の範囲が広がるの
でホロスキャナーの組立作業性が向上し、ホログラムデ
ィスクに光学特性に悪影響を及ぼす歪や、モータ軸との
すべりを生ずるという問題はなくなり好都合である。
(Effects) According to the invention, the range of appropriate bolt tightening force is expanded, which improves the workability of assembling the holoscanner, and prevents distortion of the hologram disk that adversely affects optical properties and slippage with the motor shaft. This problem is eliminated, which is convenient.

【図面の簡単な説明】[Brief explanation of the drawing]

lO・・・下フランジ、 3o・・・上フラッジ、lO
a、30a・・・凸面、 10b、3ob” ’段部、
10c、30c・・・底面。 最1 う1
lO...Lower flange, 3o...Upper flange, lO
a, 30a...convex surface, 10b, 3ob'' step,
10c, 30c... bottom. Most 1 U1

Claims (1)

【特許請求の範囲】 モータ軸に固定された下フランジにホログラムディスク
を載せて上から上フランジで締め付けて該ディスクを装
着しているホロスキャナーにおいて、 上下各フランジを直径断面が略凸字状に形成し、各フラ
ンジの凸面同士を対向密着させて締付けたときに各フラ
ンジの凸面外周段部の底面間距離が、該段部にゴムリン
グを介して装着されろホログラムディスクの厚さと該ゴ
ムリングの自由径との寸法和よりも小さく設定したこと
を特徴とするホロスキャナー。
[Claims] In a holo scanner in which a hologram disk is mounted on a lower flange fixed to a motor shaft and the disk is mounted by tightening the upper flange from above, each of the upper and lower flanges has a substantially convex diameter cross section. When the convex surfaces of each flange are tightly opposed and tightened, the distance between the bottom surfaces of the convex outer circumferential stepped portion of each flange is determined by the thickness of the hologram disk attached to the stepped portion via the rubber ring. Holoscanner characterized by being set smaller than the sum of the free diameter of the.
JP59028062A 1984-02-17 1984-02-17 Holo-scanner Pending JPS60172016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59028062A JPS60172016A (en) 1984-02-17 1984-02-17 Holo-scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59028062A JPS60172016A (en) 1984-02-17 1984-02-17 Holo-scanner

Publications (1)

Publication Number Publication Date
JPS60172016A true JPS60172016A (en) 1985-09-05

Family

ID=12238271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59028062A Pending JPS60172016A (en) 1984-02-17 1984-02-17 Holo-scanner

Country Status (1)

Country Link
JP (1) JPS60172016A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283509A (en) * 1988-09-20 1990-03-23 Power Reactor & Nuclear Fuel Dev Corp Special vacuum flange joint for optical experiment
US5046794A (en) * 1990-03-30 1991-09-10 Holotek Ltd. Hologon scanner system
US5379134A (en) * 1986-05-02 1995-01-03 Miles Inc. Holographic disk mounting system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379134A (en) * 1986-05-02 1995-01-03 Miles Inc. Holographic disk mounting system and method
JPH0283509A (en) * 1988-09-20 1990-03-23 Power Reactor & Nuclear Fuel Dev Corp Special vacuum flange joint for optical experiment
US5046794A (en) * 1990-03-30 1991-09-10 Holotek Ltd. Hologon scanner system

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