JPH01316734A - Ohp prevented from double projection - Google Patents

Ohp prevented from double projection

Info

Publication number
JPH01316734A
JPH01316734A JP63149570A JP14957088A JPH01316734A JP H01316734 A JPH01316734 A JP H01316734A JP 63149570 A JP63149570 A JP 63149570A JP 14957088 A JP14957088 A JP 14957088A JP H01316734 A JPH01316734 A JP H01316734A
Authority
JP
Japan
Prior art keywords
ohp
original paper
mount surface
waving
contact
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
JP63149570A
Other languages
Japanese (ja)
Inventor
Shingo Tokunaga
徳永　慎吾
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.)
NEC Kyushu Ltd
Original Assignee
NEC Kyushu 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 NEC Kyushu Ltd filed Critical NEC Kyushu Ltd
Priority to JP63149570A priority Critical patent/JPH01316734A/en
Publication of JPH01316734A publication Critical patent/JPH01316734A/en
Pending legal-status Critical Current

Links

Landscapes

  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)

Abstract

PURPOSE:To bring OHP original paper into contact with an OHP mount surface and to eliminate the double projection of a projected image plane by providing a cover for bringing the OHP original paper into contact with the OHP mount surface and boring air vents for the contacting. CONSTITUTION:The OHP original paper 4 becomes OHP original paper 4' by rotating a transparent cover 3 to a transparent cover 3' as shown by an arrow. Thus, the waving OHP original paper 4 goes to the OHP original paper 4' which is brought into contact with the OHP mount surface 2. The waving OHP original paper 4 is placed on the OHP mount surface 5 with the small holes and then when a movable partition plate 6 is moved as shown by a partition plate 6', air 7 between the waving OHP original paper 4 and OHP mount surface with the small holes moves as shown by air 7'. Consequently, the waving OHP original paper is brought into contact with the OHP mount surface 5. Consequently, the double projection of the projected image plane is eliminated.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はＯＨＰの二重写りの防止に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to prevention of double images on OHP.

〔従来の技術〕[Conventional technology]

従来のＯＨＰは、ＯＨＰ原紙とＯＨＰ設置面との間に間
隔があると、投影画面が第５図の例の様に二重に写る様
になっていた。In conventional OHPs, if there is a gap between the OHP base paper and the OHP installation surface, the projection screen appears twice as shown in the example shown in FIG.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のＯＨＰは、ＯＨＰ原紙とＯＨＰ設置面と
の間隔をなくす為の機能を持っていなかっだので、上述
した例の様に二重に写るという欠点がある。The above-mentioned conventional OHP does not have a function to eliminate the distance between the OHP base paper and the OHP installation surface, so it has the disadvantage of double images as in the above example.

〔発明の従来技術に対する相違点〕[Differences between the invention and the prior art]

上述した従来のＯＨＰに対し、本発明はＯＨＰ原紙とＯ
ＨＰ設置面との間隔をなくすことにより、投影画面の二
重写りを解消できるという相違点を有する。In contrast to the conventional OHP described above, the present invention uses OHP base paper and OHP.
The difference is that by eliminating the distance from the HP installation surface, double images on the projection screen can be eliminated.

〔課題を解決するための手段〕[Means to solve the problem]

〔第１の手段〕 本発明の二重写り防止のＯＨＰは、ＯＨＰ原紙をＯＨＰ
設置面に密着させる為のカバーを有している。[First means] The OHP for preventing double images of the present invention is an OHP that
It has a cover to keep it in close contact with the installation surface.

〔第２の手段〕 本発明の二重写り防止のＯＨＰは、ＯＨＰ原紙をＯＨＰ
設置面に密着させる為の空気抜きを有している。[Second Means] The OHP for preventing double images of the present invention can be used to
It has an air vent to allow it to adhere to the installation surface.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例の見取り図であり、第２図は
その側面図である。ＯＨＰ原紙４は、透明カバー３を矢
印の方向に回転させ透明カバー３′にする事により、Ｏ
ＨＰ原紙４′となる。これによって、まがりくねったＯ
ＨＰ原紙４がＯＨＰ設置面２と密着したＯＨＰ原紙４′
となる。FIG. 1 is a sketch of an embodiment of the present invention, and FIG. 2 is a side view thereof. The OHP base paper 4 can be opened by rotating the transparent cover 3 in the direction of the arrow to make the transparent cover 3'.
This becomes HP base paper 4'. This results in a twisted O
OHP base paper 4' where HP base paper 4 is in close contact with OHP installation surface 2
becomes.

第３図は本発明の実施例２の見取図であり、第４図はそ
の側面図である。曲がりくねったＯＨＰ原紙４を小さな
穴の明いたＯＨＰ設置面５にのせた後、移動式の仕切板
６を移動式の仕切板６′に移動させると、曲がりくねっ
たＯＨＰ原紙４と小さな穴の明いたＯＨＰ設置面５との
間にある空気７は空気７′に移動する。その結果曲がり
くねったＯＨＰ原紙は、小さな穴の明いたＯＨＰ設置面
５と密着する。FIG. 3 is a sketch of Embodiment 2 of the present invention, and FIG. 4 is a side view thereof. After placing the bent OHP base paper 4 on the OHP installation surface 5 with a small hole, when the movable partition plate 6 is moved to the movable partition plate 6', the curved OHP base paper 4 and the small hole are placed. Air 7 between the OHP installation surface 5 and the OHP installation surface 5 moves to air 7'. As a result, the bent OHP base paper comes into close contact with the OHP installation surface 5 having small holes.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、ＯＨＰ原紙をＯＨＰ設置
面に密着させることにより、投影画面の二重写りを解消
できる効果がある。As described above, the present invention has the effect of eliminating double images on the projection screen by bringing the OHP base paper into close contact with the OHP installation surface.

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

第１図は実施例１の見取図、第２図は実施例１の側面図
、第３図は実施例２の見取図、第４図は実施例２の側面
図である。第５図は従来の二重写りの例を示す図である
。 １・・・・・・ＯＨＰ本体、２・・・・・・ＯＨＰ設置
面、３・・・・・・透明カバー、４，４′・・・・・・
ＯＨＰｇ紙、５・・・・・・小さな穴の明いたＯＨＰ設
置面、６゜６′・・・・・・移動式の仕切板、７，７′
・・・・・・空気。 代理人　弁理士　　内　原　　　音 惨１　凹 千　２　凹 記FIG. 1 is a sketch of Embodiment 1, FIG. 2 is a side view of Embodiment 1, FIG. 3 is a sketch of Embodiment 2, and FIG. 4 is a side view of Embodiment 2. FIG. 5 is a diagram showing an example of a conventional double image. 1... OHP body, 2... OHP installation surface, 3... Transparent cover, 4, 4'...
OHPg paper, 5... OHP installation surface with small holes, 6°6'... Movable partition plate, 7,7'
······air. Agent Patent Attorney Uchihara Otozan 1 Kosen 2 Kouki

Claims (1)

【特許請求の範囲】[Claims] ＯＨＰ原紙を設置面に密着させる事により、投影画面の
二重写りを防止できる機能を有する二重写りを防止した
ＯＨＰ。An OHP that prevents double images on the projection screen by bringing the OHP base paper into close contact with the installation surface.
JP63149570A 1988-06-16 1988-06-16 Ohp prevented from double projection Pending JPH01316734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63149570A JPH01316734A (en) 1988-06-16 1988-06-16 Ohp prevented from double projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63149570A JPH01316734A (en) 1988-06-16 1988-06-16 Ohp prevented from double projection

Publications (1)

Publication Number Publication Date
JPH01316734A true JPH01316734A (en) 1989-12-21

Family

ID=15478076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63149570A Pending JPH01316734A (en) 1988-06-16 1988-06-16 Ohp prevented from double projection

Country Status (1)

Country Link
JP (1) JPH01316734A (en)

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