JPS58175625A - Manufacture for irregular reflection-plate with pervious property to light - Google Patents

Manufacture for irregular reflection-plate with pervious property to light

Info

Publication number
JPS58175625A
JPS58175625A JP14249682A JP14249682A JPS58175625A JP S58175625 A JPS58175625 A JP S58175625A JP 14249682 A JP14249682 A JP 14249682A JP 14249682 A JP14249682 A JP 14249682A JP S58175625 A JPS58175625 A JP S58175625A
Authority
JP
Japan
Prior art keywords
light
frosted
irregular reflection
pervious property
plate
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
JP14249682A
Other languages
Japanese (ja)
Inventor
Yutaka Matsukuma
松隈　裕
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.)
FUJITA NENSHI KOGYO KK
Original Assignee
FUJITA NENSHI KOGYO KK
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 FUJITA NENSHI KOGYO KK filed Critical FUJITA NENSHI KOGYO KK
Priority to JP14249682A priority Critical patent/JPS58175625A/en
Publication of JPS58175625A publication Critical patent/JPS58175625A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

PURPOSE:To obtain the plate with pervious property to light for a Broun tube- cover etc. which is able to be mass-produced in determined sizes and shapes and has irregular reflection surface with optional pervious property to light by heating the frosted surface of a formed product made by using the dies with finishing frosted surface and mirror surface. CONSTITUTION:After the concave surface 4 of an upper die 2 in metal dies 1 is finished into mirror surface, it is frosted by etching treatment and sand blast. The mirror surface 5 of a lower die 3 corresponding to said surface of the upper die is prepared. Resin (e.g. acryl resin) is poured into the gap and a product is formed. Then, hot blast 10 is blown against the frosted surface 9 of this formed product 8 whereby the uneven surface 9 obtains the irregular reflection-surface with pervious property to light. EFFECT:The product with accurate demension is obtained and its cost is reduced.

Description

【発明の詳細な説明】 ブラウン管等のカバーに使用する透光板の製法に関する
もので所定寸法、形状の量産化を計ると共に乱反射面を
任意の透光度に加工ができるようにし全体としてコスト
の低下を計ったものである。Detailed Description of the Invention: This relates to a manufacturing method for transparent plates used for covers of cathode ray tubes, etc., which enables mass production of predetermined dimensions and shapes, and allows processing of diffusely reflective surfaces to any desired degree of transparency, thereby reducing overall costs. This is a measurement of the decline.

従来この種のカバーは最初大板のものを所要寸法に切断
して縁に多数の取付孔をドリルにより穿孔している。そ
の結果切断に際しては無駄の部分が生じたり、寸法のば
らつき、取付孔の破損等が生じ歩留りが悪く、又これら
の要因によりカバーの価格は極めて高いものとなる欠点
を有している。Conventionally, this kind of cover is made by first cutting a large plate to the required size and drilling a large number of mounting holes in the edge. As a result, when cutting, there are waste parts, variations in dimensions, damage to mounting holes, etc., resulting in poor yields, and these factors also make the cover extremely expensive.

本発明はこのような従来カバーの欠点を解消すべく研究
された本のである。The present invention is a book that has been researched to eliminate these drawbacks of conventional covers.

本発明を図示の実施例により詳記すると金型（１）は上
型（２）と下型（３）とよりなり、上型（２）の凹面（
４）は鏡面仕上げの後エツチング処理、サンドブラスト
により艶消し仕上げ面（４イとし、この艶消し仕上げ面
（４１に対応する下型（３）の対応面は鏡面仕上げ面（
５）とし、縁部分に突起＜１１）　（６５を設ける。To describe the present invention in detail with reference to the illustrated embodiment, the mold (1) consists of an upper mold (2) and a lower mold (3), and the concave surface of the upper mold (2) (
4) is polished to a mirror finish, then etched and sandblasted to give a matte finish (4), and the corresponding surface of the lower mold (3) corresponding to this matte finish (41) is a mirror finish (
5), and provide a protrusion <11) (65) on the edge.

（７）は注入口である。この注入口より溶融せるアクリ
ル樹脂、ポリカーボネート等の樹脂を射出注入後冷却し
て成型品（８）を得る。この成型品（８）の艶消し而（
９）Ｃ金型（１）のａｌ′１４ｔ、仕上げ面（４５に対
応する）は第２図に示すように角ばった凹凸面となって
透光度が少なくなっているが、この艶消し面（９）に約
５００　Ｃ位の熱風（Ｉｎを吹き付けることにより凹凸
面が全体的に丸味を帯びた透光性のある乱反射面９ａと
なム突起（６）　１ｌｌ（・・・の部分は取付穴α１１
（Ｉ！５・・・となる。(7) is an injection port. A resin such as acrylic resin or polycarbonate which can be melted through this injection port is injected and cooled to obtain a molded product (8). This molded product (8) has a matte finish (
9) As shown in Figure 2, the al'14t finished surface (corresponding to 45) of C mold (1) has an angular, uneven surface with low light transmittance, but this matte surface By blowing hot air (In) at about 500 C onto (9), the uneven surface is rounded as a whole and has a diffusely reflective surface 9a with translucent properties and a round protrusion (6) 1ll (the parts marked... Hole α11
(It becomes I!5...

本発明は叙上の如く金製中に樹脂を射出注入するため所
定寸法の成型品ができる九め量産化ＫａＬ、而も取付穴
も寸法通りに穿孔された状態で成型される丸め特別の穿
孔作業は必要〒なく、更に成型品の艶消し面は熱を加え
て透光度を加減できるので任意の透光度のものが得られ
て便利である。又彎曲カバーを作る時本金型を彎曲させ
ておけばできるので量産化に適し、且寸法の正確なもの
が得られるので安価に提供〒きる利点を有する。As mentioned above, the present invention involves injecting resin into a metal material to enable mass production of a molded product with a predetermined size.Moreover, the mounting holes are rounded with special holes that are molded with the holes drilled according to the dimensions. No additional work is required, and since the matte surface of the molded product can be heated to adjust its translucency, it is convenient to obtain any translucency. Moreover, since the curved cover can be made by bending the main mold, it is suitable for mass production, and it has the advantage that it can be provided at a low cost since it can be made with accurate dimensions.

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

第１図は本発明に使用する金型の断面説明図第２図は成
型品の拡大断ＩＮ図、ｔＪＸ３図は熱処理後の成型品の
拡大断面図、第４図はカバーの平面図である。 （１）は金型、　　（２）は上型、　　（３）は下型、
（４）は凹面、　　　（４イは艶消し仕上げ面、（５）
は鏡面仕上げ面、　　（ｆｉ）　（６１は突起、（８身
ま成型品、（９）は艶消し面、 ａｌは熱風、　　　９ａは乱反射面。 　− ＼　　　　　　　　　　　　　　　０４派　　　　　　
　　　　派 ｒｒ）　　　　　　　　　☆ 味　　　　　　派Figure 1 is an explanatory cross-sectional view of the mold used in the present invention. Figure 2 is an enlarged sectional view of the molded product. Figure tJX3 is an enlarged cross-sectional view of the molded product after heat treatment. Figure 4 is a plan view of the cover. . (1) is the mold, (2) is the upper mold, (3) is the lower mold,
(4) is a concave surface, (4a is a matte finish surface, (5)
is a mirror finished surface, (fi) (61 is a protrusion, (8 body molded product, (9) is a matte surface, al is hot air, 9a is a diffused reflection surface. - ＼ 04 group
Faction rr) ☆ Taste Faction

Claims (1)

【特許請求の範囲】[Claims] 一面を艶消し仕上げ面とし、対応面を鏡面仕上げ面とし
た金型中に樹脂を注入１−で成型品を取り出Ｌ、該成型
品の艶消し而に熱を加えて、該艶消し面を透光性のある
乱反射面とした透光性のある乱反射板の製造法。Inject resin into a mold with a matte finish on one side and a mirror finish on the other side. Take out the molded product at step 1. Heat is applied to the matte surface of the molded product, and the matte surface is heated. A method for manufacturing a light-transmitting diffused reflection plate using a light-transmitting diffused reflection surface.
JP14249682A 1982-08-17 1982-08-17 Manufacture for irregular reflection-plate with pervious property to light Pending JPS58175625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14249682A JPS58175625A (en) 1982-08-17 1982-08-17 Manufacture for irregular reflection-plate with pervious property to light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14249682A JPS58175625A (en) 1982-08-17 1982-08-17 Manufacture for irregular reflection-plate with pervious property to light

Publications (1)

Publication Number Publication Date
JPS58175625A true JPS58175625A (en) 1983-10-14

Family

ID=15316678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14249682A Pending JPS58175625A (en) 1982-08-17 1982-08-17 Manufacture for irregular reflection-plate with pervious property to light

Country Status (1)

Country Link
JP (1) JPS58175625A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114601A (en) * 1984-06-29 1986-01-22 Koji Fujita Filter sheet for cathode-ray tube and its manufacture
JPH01145639A (en) * 1987-12-02 1989-06-07 Olympus Optical Co Ltd Photometric instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114601A (en) * 1984-06-29 1986-01-22 Koji Fujita Filter sheet for cathode-ray tube and its manufacture
JPH01145639A (en) * 1987-12-02 1989-06-07 Olympus Optical Co Ltd Photometric instrument

Similar Documents

Publication Publication Date Title
US3998531A (en) Method of making protective optical components
JPS58175625A (en) Manufacture for irregular reflection-plate with pervious property to light
CA2344329A1 (en) Manufacturing of positive power opthalmic lens
US7407280B2 (en) Lens for sunglasses, method for producing the same, and production apparatus therefor
KR860001357A (en) Manufacturing method of semi-processed contact lens
JPH09225961A (en) Manufacture of optical plastic product
JPH0617240B2 (en) Glass lens molding method
CN212602823U (en) Continuous operation quick cold pressing die
CN109650704A (en) A kind of 3D hot bending right angle four sides contour glass and its production technology
JPH0341411A (en) End piece for spectacle frame and its manufacture
CN213517638U (en) Multi-section prism decorative material and template
JPS59124819A (en) Manufacture of plastic optical part
JPS5864249A (en) Light transmitting composite plate with internal pattern and its manufacture
JPS6325233A (en) Compression molding of optical element
JPH03158214A (en) Method for forming with elastically deforming mold
JPH0769651A (en) Optical element forming method and metal mold for forming optical element
JPH07112600A (en) Patterned molded product made of permeable material and production thereof
JPH02252628A (en) Method for forming optical element
JPH0139363Y2 (en)
WO2024007368A1 (en) Glass product forming mold
CN113461316A (en) Method for molding glass
JPS63182223A (en) Method for molding glass lens
JPS6160799B2 (en)
JPS61127626A (en) Preparation of optical element
JPH05124097A (en) Resin surface mirror and preparation of the same