WO2013177782A1 - Tableau d'écriture en verre approprié pour une projection - Google Patents

Tableau d'écriture en verre approprié pour une projection Download PDF

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Publication number
WO2013177782A1
WO2013177782A1 PCT/CN2012/076354 CN2012076354W WO2013177782A1 WO 2013177782 A1 WO2013177782 A1 WO 2013177782A1 CN 2012076354 W CN2012076354 W CN 2012076354W WO 2013177782 A1 WO2013177782 A1 WO 2013177782A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
writing board
projection
board suitable
fluorescent layer
Prior art date
Application number
PCT/CN2012/076354
Other languages
English (en)
Chinese (zh)
Inventor
毛少雄
Original Assignee
Mao Shaoxiong
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 Mao Shaoxiong filed Critical Mao Shaoxiong
Priority to PCT/CN2012/076354 priority Critical patent/WO2013177782A1/fr
Publication of WO2013177782A1 publication Critical patent/WO2013177782A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/008—Repeatedly-usable boards or tablets for writing or drawing with magnetic action

Definitions

  • the invention belongs to the technical field of glass writing boards, in particular to a glass writing board suitable for projection.
  • Projection screens are tools used to display images and video files in teaching, film, office, home theater, and large-scale conferences.
  • the projection screen is one of the most important products in the peripheral equipment of the projector. If the projection screen is properly matched with the projector, you can get a high-quality projection effect.
  • the existing projection screen cannot be marked or written directly with a writing instrument such as a whiteboard pen;
  • the existing projection screen the surface of the use of granular pearl powder as a tool for absorbing and reflecting light
  • the pearl powder on the surface of the curtain will gradually fall off, so the image projected onto the screen will gradually blur
  • the rough surface of the curtain will also absorb dust and other micro-particles in the environment. For a long time, dust is easily accumulated on the screen, which affects the appearance and damages the projection effect;
  • the projection screen In the idle state, the projection screen has almost no other practical or decorative functions, and it is impossible to absorb message strips or other materials by means of magnets or the like;
  • the inventors have specially developed a glass writing board suitable for projection, and the present invention has been produced.
  • the object of the present invention is to provide a glass writing board suitable for projection, which can greatly improve the imaging effect, and can directly write dry erase on the board surface by using a whiteboard pen, and at the same time, it is better in the idle state.
  • the decorative effect can also use magnetic materials to absorb message strips and other small objects (such as keys, whiteboard pens, erasers, etc.) on the board surface.
  • the utility model relates to a glass writing board suitable for projection, which comprises a frosted glass, a fluorescent layer, a primer layer and a magnetic adsorbing plate.
  • the rough surface of the frosted glass faces outward and the smooth surface is combined with the fluorescent layer, and the back surface of the fluorescent layer is combined with the primer layer.
  • the back side of the primer layer is attached to a magnetically absorbing plate.
  • the frosted glass is processed in two steps: firstly, a strong acid etching method is used to form a plurality of small hexagonal crystal particles having a length, a width and a height of less than 10 nm, respectively, thereby destroying the reflection of the original glass surface. Structure; then use the acid etching method to smooth the sharp part of the above-mentioned hexagonal body, so that the surface of the frosted glass is neither reflective, and the dry erase can be written with a whiteboard pen, leaving no trace after erasing.
  • the frosted glass has a thickness of 3-16 mm.
  • the glass writing board has two colors of silver gray and silver white; the fluorescent layer of the silver gray glass writing board is prepared by mixing and mixing 80.4% varnish, 10.7% silver powder and 8.9% auxiliary agent by weight; fluorescence of silver white glass writing board The layer was prepared by mixing and mixing 80.4% varnish, 10.7% phosphor and 8.9% auxiliary by weight.
  • the fluorescent layer and the primer layer are formed by spraying, rolling or showering, and then baking.
  • the phosphor layer has a thickness of 8-10 microns.
  • the primer layer has a thickness of 4-6 microns.
  • the magnetically absorbing plate is a galvanized plate or other steel plate, iron plate or iron tape.
  • the magnetically absorbing plate has a thickness of 0.3 to 0.8 mm.
  • the present invention has the following advantages compared with the prior art:
  • the invention has a fluorescent layer and can be used to display images and video files, like the existing projection screen, to realize projection effect, and the imaging effect is far superior to the existing commercially available projection screen;
  • the surface of the invention is a hard frosted glass, which can be used as a projection screen or dry erase, as a general whiteboard;
  • the back of the projection board of the present invention is a magnetically absorbing plate (such as galvanized sheet, steel, iron plate or iron tape), and can be used to adsorb message strips, other paper materials or small objects (such as keys, whiteboard pens) through magnets. , whiteboard wipe, etc.);
  • a magnetically absorbing plate such as galvanized sheet, steel, iron plate or iron tape
  • the surface of the invention is a hard frosted glass, which is not easy to absorb dust or other fine particles in the environment, and at the same time, the invention has a certain decorative effect due to the crystal clearness of the glass itself.
  • Figure 1 is a schematic view of the structure of the present invention.
  • the present invention discloses a glass writing board suitable for projection, which is composed of frosted glass 1, fluorescent layer 2, primer layer 3 and magnetically absorbing plate 4.
  • the rough surface of frosted glass 1 can achieve a writing function.
  • Frosted glass 1 is processed in two steps: firstly, the surface of the glass is formed into numerous fine hexagonal crystal particles with length, width and height less than 10 nm, respectively, by strong acid etching, thereby destroying the reflective structure of the original glass surface. Then, the sharp part of the above-mentioned hexagonal body is smoothed by acid etching, so that the surface of the frosted glass is neither reflective, and the dry erase can be written with a whiteboard pen, leaving no trace after erasing.
  • the thickness of the frosted glass 1 is preferably from 3 to 16 mm. The rough side of frosted glass 1 faces outward.
  • the fluorescent layer 2 is laminated on the smooth surface of the frosted glass 1.
  • the fluorescent layer 2 can realize a projection function.
  • the fluorescent layer 2 can be made of various existing fluorescent materials, or can be given a specific formula according to the color of the glass writing board, such as a glass writing board having two colors of silver gray and silver white; the fluorescent layer 2 of the silver gray glass writing board by weight The percentage is made by thoroughly stirring and mixing 80.4% varnish, 10.7% silver powder and 8.9% auxiliaries; the fluorescent layer 2 of the silver-white glass writing board is fully stirred and mixed by 80.4% varnish, 10.7% phosphor and 8.9% auxiliaries by weight. to make.
  • the forming method of the fluorescent layer 2 is first spraying, rolling or showering, and then baking, and specifically, baking can be performed twice in succession.
  • the thickness of the fluorescent layer 2 is preferably 8 to 10 ⁇ m.
  • the fluorescent layer 2 provides excellent image sharpness, excellent contrast, high color realism and good writing resolution.
  • the primer layer 3 is further laminated on the back side of the phosphor layer 2.
  • the primer layer 3 can ensure both the projection effect of the fluorescent layer 2 and the fluorescent layer 2.
  • the forming method of the primer layer 3 is first spraying, rolling or showering, and then baking, and specifically, baking can be performed twice in succession.
  • the thickness of the primer layer 3 is preferably 4-6 microns.
  • the magnetic adsorbing plate 4 is attached to the back surface of the primer layer 3.
  • the magnetic adsorption plate 4 may be a galvanized plate or other steel plate, iron plate, iron tape, or various materials for magnet adsorption and fixation, so that temporary data (such as reports, lists, pictures, etc.) are fixed when the small magnet block is adsorbed. Such as a magnet plate.
  • the thickness of the magnetic adsorbing plate 4 is preferably 0.3 to 0.8 mm.
  • the light projection of the projector is irradiated onto the fluorescent layer 2 through the frosted glass 1, and the fluorescent light is transmitted through the frosted glass 1 to cause diffuse reflection on the rough surface thereof, and enters the eyes of the viewer to form an image.
  • a part of the light penetrates the transparent frosted glass 1, and is irradiated to the fluorescent layer 2, and the fluorescent layer 2 emits light to make the projection plate brighter.
  • the rough surface of the frosted glass 1 can be marked, written, and painted, and when temporary lightweight materials are temporarily attached, the temporary magnets can be fixed with a small magnet block and a magnetic adsorption plate 4. .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

L'invention concerne un tableau d'écriture en verre approprié pour une projection, qui est composé d'un verre dépoli, d'une couche fluorescente, d'une couche d'amorce et d'une plaque magnétiquement adsorbable. Une surface rugueuse du verre dépoli fait face vers l'extérieur et sa surface lisse est stratifiée sur la couche fluorescente, la surface arrière de la couche fluorescente est à son tour stratifiée sur la couche d'amorce, et la surface arrière de la couche d'amorce est stratifiée sur la plaque magnétiquement adsorbable.
PCT/CN2012/076354 2012-05-31 2012-05-31 Tableau d'écriture en verre approprié pour une projection WO2013177782A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/076354 WO2013177782A1 (fr) 2012-05-31 2012-05-31 Tableau d'écriture en verre approprié pour une projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/076354 WO2013177782A1 (fr) 2012-05-31 2012-05-31 Tableau d'écriture en verre approprié pour une projection

Publications (1)

Publication Number Publication Date
WO2013177782A1 true WO2013177782A1 (fr) 2013-12-05

Family

ID=49672309

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/076354 WO2013177782A1 (fr) 2012-05-31 2012-05-31 Tableau d'écriture en verre approprié pour une projection

Country Status (1)

Country Link
WO (1) WO2013177782A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016018861A1 (fr) * 2014-07-30 2016-02-04 Corning Incorporated Écrans de projection avant accessibles en écriture/effaçables, à base de verre, à contraste élevé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2516357Y (zh) * 2000-05-08 2002-10-16 张素英 爱师牌黑板
US20090273833A1 (en) * 2008-05-02 2009-11-05 Chien-Wei Chiu Single manufacturing process for great writable and erasable functional projecting screen with developing performance
CN201931848U (zh) * 2010-09-21 2011-08-17 中航三鑫股份有限公司 一种黑板屏幕玻璃
CN202138111U (zh) * 2011-06-02 2012-02-08 李宝林 多功能一体教学板
CN202156181U (zh) * 2011-06-22 2012-03-07 光峰光电(无锡)有限公司 一种兼具书写和投影功能的教学自动贴合薄板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2516357Y (zh) * 2000-05-08 2002-10-16 张素英 爱师牌黑板
US20090273833A1 (en) * 2008-05-02 2009-11-05 Chien-Wei Chiu Single manufacturing process for great writable and erasable functional projecting screen with developing performance
CN201931848U (zh) * 2010-09-21 2011-08-17 中航三鑫股份有限公司 一种黑板屏幕玻璃
CN202138111U (zh) * 2011-06-02 2012-02-08 李宝林 多功能一体教学板
CN202156181U (zh) * 2011-06-22 2012-03-07 光峰光电(无锡)有限公司 一种兼具书写和投影功能的教学自动贴合薄板

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016018861A1 (fr) * 2014-07-30 2016-02-04 Corning Incorporated Écrans de projection avant accessibles en écriture/effaçables, à base de verre, à contraste élevé
CN106575074A (zh) * 2014-07-30 2017-04-19 康宁股份有限公司 高对比度、基于玻璃的可写入/可擦除前投影屏幕
US10509307B2 (en) 2014-07-30 2019-12-17 Corning Incorporated High contrast, glass-based, writeable/erasable front projection screens
CN106575074B (zh) * 2014-07-30 2020-06-05 康宁股份有限公司 高对比度、基于玻璃的可写入/可擦除前投影屏幕

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