201126468 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種透鏡成像教具，尤指一種可增加更 多可用來觀察之焦距、減低教具的複雜性、提高教學的瞭 解性與操作的方便性之透鏡成像教具者。 【先前技術】 傳統對於透鏡的物理教學係使用一固定焦距玻璃透 鏡，於透鏡相對二側分別放置一發光源（例如蠟燭或LED 燈）與一屏幕，藉由移動改變透鏡、發光源與屏幕這三者 的相對位置，使發光源穿透過透鏡後在屏幕上成像，並藉 由成像之變化瞭解透鏡的光學性質。 然而，上述習知技術具有下列幾項缺點： 1. 於教學時需準備多個不同焦距透鏡：因一個透鏡只 有一種焦距，若要觀察多種焦距時，即必須準備多 個透鏡。 2. 教具成本及教具複雜度高：教具中必須準備多個透 鏡，增加購置成本及教具複雜度。 3. 教具操作不方便：若要改變觀察其他焦距時，即必 須更換透鏡，操作上極不方便。 4. 焦距的變換彈性小：受限於所準備的透鏡種類，僅 能觀察到幾個焦距。 5. 無法準確知道焦點位置：因使用蠟濁或LED燈時， 只能依成像的清析與否大致決定焦點位置，即實務 201126468 上並無法準確知道焦點位置。 6·無法知道光線的行進方向與路徑：一般只能在屏幕 上觀察到影像，無法看到光線的行進方向與路徑， 不容易使學生暸解透鏡的光學性質° 因此，如何發明出一種透鏡成像教具’以增加更多可 用來觀察之焦距，並減低教具的複雜性’同時提高教學的 瞭解性與操作的方便性，將是本發明所欲積極揭露之處。 【發明内容】 有鑑於上述習知透鏡成像教具之缺憾，發明人有感其 未漆於完善’遂竭其心智悉心研究克服’憑其從事該項產 業多年之累積經驗，進而研發出一種透鏡成像教具’以期 達到增加更多可用來觀察之焦距、減低教具的複雜性、提 阿教學的瞭解性與操作的方便性的目的。 本發明之主要目的在提供一種透鏡成像教具，其可藉 由可變倍率透鏡模組之使用而使透鏡之焦距具有多種變 化’並藉由霧狀體可觀察出光線路徑，進而達到增加更多 可用來觀察之焦距、減低教具的複雜性、提高教學的瞭解 哇與操作的方便性的目的。 〜為達上述目的，本發明之透鏡成像教具包含一基件、 可變倍率透鏡模組、一光源模組、一屏幕模組、一 毂體及一霧狀體。 其中’基件包含一滑軌；可變倍率透鏡模組係滑設於 基件之滑軌並包含一操縱桿；光源模組亦滑設於基件之滑 201126468 軌並位於可d率透鏡模組之其中一侧’且此光源模組包 a操縱才于屏幕模組亦滑設於基件之滑執並位於可變倍 率透鏡模，、:a之另-側，且此屏幕模組包含_操縱桿。 此外透月λ足體係圍繞封閉上述之基件、可變倍率透 鏡，組、光賴k與屏幕模組，且此透明殼體包含-活動 罩蓋’縫隙、至少—孔洞及—遮幕’其中，縫隙係連通 透明=體内外’且可變倍率透鏡模組、光源模組與屏幕模 組之，縱;別經由縫隙凸出於透明殼體外 ，孔洞係連通 透月设He外遮幕係滑設於透明殼體外並對應遮蔽孔洞φ 與缝隙，霧狀體係經由孔洞注人透明殼體内。 因此’本發明之一種透鏡成像教具可藉由可變倍率透 鏡模組之使用而使透鏡之焦距具有多種變化，並藉由霧狀 體可觀察出光線路徑，進而達到增加更多可用來觀察之焦 距、減低教具的複雜性、提高教學的瞭解性與操作的方便 性的目的。 【實施方式】 為充分瞭解本發明之目的、特徵及功效，茲藉由下述 具體之實施例，並配合所附之圖式，對本發明做一詳細說 明，說明如後： 請參閱第1圖，其係為本發明第一較佳具體實施例之 立體圖。於圖式中顯示有一透鏡成像教具9,且此透鏡成像 教具9包含一基件1、一可變倍率透鏡模組2、一光源模組 3及一屏幕模組4。 201126468 於圖式中，基件1包含一滑軌11 ;可變倍率透鏡模組 2、光源模組3與屏幕模組4係分別滑設於基件1之滑轨 11，且光源模組3位於可變倍率透鏡模組2之其中一側， 屏幕模組4位於可變倍率透鏡模組2之另一側。 於本實施例中，可變倍率透鏡模組2、光源模組3及屏 幕模組4分別包含一基座22,36,42，且可變倍率透鏡模組 2、光源模組3及屏幕模組4分別藉由基座22,36,42而滑設 於基件1之滑執11。 另於本實施例中，可變倍率透鏡模組2係為一種利用 液體變化來改變焦距之透鏡形式，亦即利用改變液體之填 充、抽吸之量的多少，來改變薄膜表面曲率，並藉以形成 不同的透鏡焦距。關於前述技術乃為該領域具有通常知識 者所熟知，故於此不再加以贅述。 請同時參閱第1圖及第2圖，其中之第2圖係為本發 明第一較佳具體實施例之光源模組示意圖，於第2圖中顯 示本實施例之光源模組3係使用一 LED燈模組，其具有高 亮度之四個LED燈32〜35，且此四個LED燈32〜35分別具 有不同顏色，當其光線經過可變倍率透鏡模組2並成像於 屏幕模組4時，屏幕模組4上之影像可顯示出經過透鏡作 用後，影像之顛倒或縮小放大之效果。 附帶說明，光源模組3雖亦可使用傳統之蠟燭（圖未 示），但若如上述般以LED燈模組替代蠟燭時，可避免因 蠟燭點火所造成之危險、或蠟油滴落所造成之環境髒亂、 或燭火搖晃不定所造成之成像不清楚、或燭火亮度較暗所 201126468 造成之成像不清晰、或燭火無法清楚看出影像顛倒縮放等 問題。 請同時參閱第1圖、第2圖、第3圖及第4圖，其中 之第3圖係為本發明第一較佳具體實施例之光源模組使用 狀態示意圖，第4圖係為第3圖之光源模組經過可變倍率 透鏡模組之後於屏幕模組之成像示意圖。 於圖式中顯示上述之光源模組3 (LED燈模組）所包 含之四個LED燈32〜35分別具有不同顏色，例如紅、黃、 藍、綠等，且經過可變倍率透鏡模組2後，會以上下左右 顛倒方式成像於屏幕模組4。藉此，在LED燈32〜35不同 顏色之成像變化下，可使學生更為瞭解可變倍率透鏡模組2 之光學性質。 再請參閱第1圖，於本實施例中，在基件1上尚設有 一量尺12，如此可得知可變倍率透鏡模組2、光源模組3 及屏幕模組4之間之距離相對關係，例如在相對移動可變 倍率透鏡模組2、光源模組3及屏幕模組4時，可藉由屏幕 模組4之成像變化，瞭解可變倍率透鏡模組2之焦距等光 學性質。 請同時參閱第1圖、第5圖及第6圖，其中之第5圖 係為本發明第一較佳具體實施例包含透明殼體之立體圖， 第6圖係為本發明第一較佳具體實施例之遮幕示意圖，由 圖式可知，於本實施例中尚包含一透明殼體5及一霧狀體 6 ° 圖式中之透明殼體5包含一活動罩蓋51，其可活動打 201126468 開並關閉，以便置放基件1、可變倍率透鏡模組2、光源模 組3與屏幕模組4。 此外，透明殼體5尚包含一縫隙52 ’此縫隙52係連通 透明殼體5内外，且可變倍率透鏡模組2、光源模組3與屏 幕模組4分別包含一操縱桿21，31，41 ’每一操縱桿21，31，41 則經由縫隙52凸出於透明殼體5外。 另外，透明殼體5更包含一孔洞53及一遮幕54,其中 馨 之孔洞53係連通透明殼體5内外，遮幕54係滑設於透明 殼體5外並對應遮蔽孔洞53與縫隙52，且霧狀體6 (例如 一般之煙霧）係經由孔洞53注入透明殼體5内，例如以注 射針筒（圖未示）注入。前述之孔洞53並不以一個為限， 亦可為二個以上。 於本實施例中’遮幕54包含一左片體541、一中間片 體542及一右片體543，如第ό圖所示，且左片體541、中 間片體542及右片體543係彼此連結，中間片體542並呈 • 伸縮狀。 率、类_ 可训操縱桿21，3丨，41操縱可變/ 軌1广上二;模組3與屏幕模組4分別於基件1之: 心:542 = 滑動，之後再依屏幕模響操縱桿21，31，41. 透鏡模組2之焦料光學性像變化，瞭解可變倍· 此外，利用注入 6由孔洞53盥缝g b ，且利用遮幕54阻擋霧狀: 逸出，而使霧狀體6散佈於透明殼: 201126468 得知光/可觀察出光源模組3之光線路徑302，亦即可以 3〇2在經過可變倍率透鏡模組2之前與之後 模电2之^故於教學上可使學生更為瞭解可變倍率透鏡 傾：、、’丑ζ之光學性質。 個可由可變倍率透鏡模組2之使用，即僅利用- 灸倍率透鏡模組2即可使透鏡 且藉由霧狀體6可觀窣屮m 具有夕種受化， , s . '、出光源模、、且3之光線路徑302,進而 運至】增加更多可用來觀察 高教學轉减低教具的複雜性、提 敬予的瞭解性與操作的方便性的目的。 睛參閱第7圖，其係為本發明第二較佳且體 =模㈣意圖’於本實關巾，其主要結構 一較佳具體實施例相同，唯差別在於 达第 隹lit 純組，且猎此結構仍可達成上述第-較 佳具體貫施例所述之各種功效。 綜合上述各實施例，利用上述 數項特點： 馎至乂可達成下列 1·僅需單-個透鏡即可使用極多種焦距來觀察。 2. 可快速改變到不同焦距，且其改__改變。 3. 減少器材成本和教學實驗器材的複雜性。 4. 可準確觀察到焦點的正確位 小及顛倒情形。 並同時觀察成像大 5. 可觀察到光線的匯聚和發散等光線行 6. 提高教學的瞭解性。 仏。 如上所述’本發明完全符合專利三要件：新賴性、進 201126468 步性和產業上的可利用性。以新穎性和進步性而言，本發 明係可藉由可變倍率透鏡模組之使用，致使透鏡之焦距具 有夕種變化’進而達到增加更多可用來觀察之焦距、減低 教具的複雜性、提高教學的瞭解性與操作的方便性的效 用，並再藉由霧狀體之使用，而可觀察出光源模組之光線 路徑，進而達到於教學上可使學生更為瞭解透鏡之光學性 質的目的；就產業上的可利用性而言，利用本發明所衍生 的產品’當可充分滿足目前市場的需求。 讀為限制本發明之範圍。應注意的是， 應>主意的是，舉凡盥玆音你例算201126468 VI. Description of the Invention: [Technical Field] The present invention relates to a lens imaging teaching aid, and more particularly to a method for increasing the focal length that can be used for observation, reducing the complexity of teaching aids, improving the understanding of teaching, and facilitating operation. Sexual lens imaging aids. [Prior Art] Traditionally, the physics teaching of the lens uses a fixed focal length glass lens, and a light source (such as a candle or an LED lamp) and a screen are respectively placed on opposite sides of the lens, and the lens, the light source and the screen are changed by moving. The relative position of the three causes the illuminating source to penetrate the lens and image on the screen, and the optical properties of the lens are known by the change of imaging. However, the above-mentioned prior art has the following disadvantages: 1. A plurality of different focal length lenses are required for teaching: since one lens has only one focal length, in order to observe a plurality of focal lengths, it is necessary to prepare a plurality of lenses. 2. Cost of teaching aids and high complexity of teaching aids: Multiple lenses must be prepared in teaching aids to increase the cost of acquisition and the complexity of teaching aids. 3. The teaching aid is inconvenient to operate: If you want to change the other focal lengths, you must replace the lens, which is extremely inconvenient to operate. 4. The conversion elasticity of the focal length is small: limited to the type of lens prepared, only a few focal lengths can be observed. 5. It is impossible to know the focus position accurately: When using wax turbidity or LED light, the focus position can only be determined roughly according to the analysis of the image. That is, the focus position cannot be accurately known on the actual 201126468. 6. The direction and path of the light cannot be known: Generally, the image can only be observed on the screen, and the direction and path of the light cannot be seen. It is not easy for the student to understand the optical properties of the lens. Therefore, how to invent a lens imaging aid 'To increase the focal length that can be used to observe, and to reduce the complexity of teaching aids' while improving the understanding of teaching and the convenience of operation, will be actively exposed by the present invention. SUMMARY OF THE INVENTION In view of the shortcomings of the above-mentioned conventional lens imaging teaching aids, the inventors have felt that they have not been lacquered and perfected, and exhausted their mental and scientific research to overcome the accumulated experience of the industry for many years, and developed a lens imaging method. The teaching aids are designed to increase the focal length that can be used to observe, reduce the complexity of teaching aids, and understand the ease of teaching and the convenience of operation. The main object of the present invention is to provide a lens imaging teaching tool which can change the focal length of a lens by using a variable magnification lens module and observe the light path through the mist to increase the number of the lens. Can be used to observe the focal length, reduce the complexity of teaching aids, improve the understanding of teaching and the convenience of operation. For the above purposes, the lens imaging teaching aid of the present invention comprises a base member, a variable magnification lens module, a light source module, a screen module, a hub body and a mist body. The 'base member includes a slide rail; the variable magnification lens module is slidably disposed on the slide rail of the base member and includes a joystick; the light source module is also slidably disposed on the slide of the base member 201126468 and located at the d-rate lens mold One of the set's and the light source module package a is manipulated so that the screen module is also slidably disposed on the slide of the base member and located on the variable magnification lens mode, the other side of the a, and the screen module includes _ Joystick. In addition, the transparent λ foot system surrounds the above-mentioned base member, the variable magnification lens, the group, the light-receiving k and the screen module, and the transparent casing comprises a movable cover 'gap, at least a hole and a curtain' The gap is connected to the transparent = internal and external 'and the variable magnification lens module, the light source module and the screen module, and the vertical; the hole is protruded out of the transparent casing through the slit, and the hole is connected to the moon. The sliding system is disposed outside the transparent casing and corresponding to the shielding hole φ and the slit, and the mist system is injected into the transparent casing through the hole. Therefore, a lens imaging teaching aid of the present invention can change the focal length of the lens by using the variable magnification lens module, and the light path can be observed by the mist, thereby increasing the number of observations. The purpose of focal length, reducing the complexity of teaching aids, improving the understanding of teaching and the convenience of operation. DETAILED DESCRIPTION OF THE INVENTION In order to fully understand the object, features and effects of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings. It is a perspective view of a first preferred embodiment of the present invention. A lens imaging teaching aid 9 is shown in the drawings, and the lens imaging teaching aid 9 comprises a base member 1, a variable magnification lens module 2, a light source module 3 and a screen module 4. 201126468 In the figure, the base member 1 includes a slide rail 11; the variable magnification lens module 2, the light source module 3 and the screen module 4 are respectively slidably disposed on the slide rail 11 of the base member 1, and the light source module 3 Located on one side of the variable magnification lens module 2, the screen module 4 is located on the other side of the variable magnification lens module 2. In the embodiment, the variable magnification lens module 2, the light source module 3 and the screen module 4 respectively comprise a base 22, 36, 42 and a variable magnification lens module 2, a light source module 3 and a screen module. The group 4 is slidably disposed on the slide 11 of the base member 1 by the bases 22, 36, 42 respectively. In addition, in the embodiment, the variable magnification lens module 2 is a lens form that changes the focal length by using a liquid change, that is, changing the surface curvature of the film by changing the amount of filling and suction of the liquid, and thereby Different lens focal lengths are formed. The foregoing techniques are well known to those of ordinary skill in the art and will not be described herein. Please refer to FIG. 1 and FIG. 2, wherein FIG. 2 is a schematic diagram of a light source module according to a first preferred embodiment of the present invention. FIG. 2 shows a light source module 3 of the present embodiment. The LED lamp module has four LED lamps 32 to 35 with high brightness, and the four LED lamps 32 to 35 respectively have different colors when the light passes through the variable magnification lens module 2 and is imaged on the screen module 4 At the same time, the image on the screen module 4 can show the effect of reversing or reducing the image after the lens is applied. Incidentally, although the light source module 3 can also use a conventional candle (not shown), if the LED lamp module is used instead of the candle as described above, the danger caused by the ignition of the candle or the dripping of the wax oil can be avoided. The image caused by the dirty environment, or the candlestick is not clear, or the brightness of the candle is dark. The image caused by the 201126468 is not clear, or the candle cannot be clearly seen. Please refer to FIG. 1 , FIG. 2 , FIG. 3 , and FIG. 4 , wherein FIG. 3 is a schematic view showing the use state of the light source module according to the first preferred embodiment of the present invention, and FIG. 4 is the third embodiment. The schematic diagram of the light source module of the figure after passing through the variable magnification lens module on the screen module. In the figure, the four LED lamps 32 to 35 included in the above-mentioned light source module 3 (LED lamp module) respectively have different colors, such as red, yellow, blue, green, etc., and pass through the variable magnification lens module. After 2, it will be imaged on the screen module 4 in the upside down manner. Thereby, the students can better understand the optical properties of the variable magnification lens module 2 under the imaging changes of the LED lights 32 to 35 in different colors. Referring to FIG. 1 again, in the embodiment, a measuring rule 12 is further disposed on the base member 1, so that the distance between the variable magnification lens module 2, the light source module 3 and the screen module 4 can be known. The relative relationship, for example, when the variable magnification lens module 2, the light source module 3, and the screen module 4 are relatively moved, the optical properties such as the focal length of the variable magnification lens module 2 can be understood by the imaging variation of the screen module 4. . Please refer to FIG. 1 , FIG. 5 and FIG. 6 , wherein FIG. 5 is a perspective view of a transparent housing according to a first preferred embodiment of the present invention, and FIG. 6 is a first preferred embodiment of the present invention. In the embodiment, a transparent cover 5 and a mist-like body 6 are included in the embodiment. The transparent cover 5 in the figure includes a movable cover 51 which is movable. 201126468 is opened and closed to place the base member 1, the variable magnification lens module 2, the light source module 3 and the screen module 4. In addition, the transparent housing 5 further includes a slit 52 ′ which is connected to the inside and outside of the transparent housing 5 , and the variable magnification lens module 2 , the light source module 3 and the screen module 4 respectively include a joystick 21 , 31 . 41 'Each joystick 21, 31, 41 protrudes out of the transparent casing 5 via the slit 52. In addition, the transparent casing 5 further includes a hole 53 and a curtain 54. The hole 53 is connected to the inside and the outside of the transparent casing 5. The curtain 54 is slidably disposed outside the transparent casing 5 and corresponding to the shielding hole 53 and the gap 52. The mist 6 (for example, general smoke) is injected into the transparent casing 5 via the hole 53, for example, by injection into a syringe (not shown). The aforementioned holes 53 are not limited to one, and may be two or more. In the present embodiment, the mask 54 includes a left sheet 541, an intermediate sheet 542, and a right sheet 543, as shown in the figure, and the left sheet 541, the intermediate sheet 542, and the right sheet 543. The intermediate sheets 542 are connected to each other and are stretched and contracted. Rate, class _ trainable joystick 21, 3 丨, 41 manipulate variable / track 1 wide 2; module 3 and screen module 4 respectively in the base 1: heart: 542 = slide, then according to the screen mode The joystick 21, 31, 41. The optical image of the focal length of the lens module 2 is changed, and the variable magnification is known. Further, the injection gap 6 is used to quilt the gb by the hole 53, and the fog 54 is blocked by the curtain 54: escape, And the mist body 6 is scattered on the transparent shell: 201126468 It is known that the light path 302 of the light source module 3 can be observed, that is, it can be 3〇2 before and after passing through the variable magnification lens module 2 ^ Therefore, in teaching, students can better understand the variable magnification lens tilt:,, 'the ugly optical properties. The lens can be used by the variable magnification lens module 2, that is, only the moxibustion magnification lens module 2 can be used to make the lens and the misty body 6 observable, and the light source is s. The modulo, and 3 ray path 302, which is then shipped to the 】, can be used to observe the complexity of the high teaching and teaching aids, the understanding of the respect and the convenience of operation. Referring to Figure 7, which is a second preferred embodiment of the present invention, the body = mold (four) is intended to be used in the actual closure of the towel, the main structure of which is the same as the preferred embodiment, except that the difference is in the Da Di 隹 lit pure group, and Hunting this structure can still achieve the various efficacies described in the above-described preferred embodiments. In combination with the above embodiments, the above several features are utilized: 馎至乂 can achieve the following: 1. Only a single lens can be used to observe a wide variety of focal lengths. 2. Can be quickly changed to different focal lengths, and it changes __ change. 3. Reduce the cost of equipment and the complexity of teaching laboratory equipment. 4. The correct position of the focus can be accurately observed. At the same time, observing the large image 5. Observing the convergence of light and divergence, etc. 6. Improve the understanding of teaching. Hey. As described above, the present invention fully complies with the three requirements of the patent: new reliance, advancement to 201126468, and industrial availability. In terms of novelty and advancement, the present invention can be used by the variable magnification lens module, so that the focal length of the lens has a change of the moment', thereby increasing the focal length for observing, reducing the complexity of the teaching aid, Improve the understanding of teaching and the convenience of operation, and then use the use of the mist to observe the light path of the light source module, so as to achieve a better understanding of the optical properties of the lens. Purpose; in terms of industrial availability, the products derived from the present invention can fully satisfy the needs of the current market. It is to be understood as limiting the scope of the invention. It should be noted that it should be > the idea of the
本發明在上文中已以較佳實施例揭露，然熟習本項技 術f應理解的是’該實_僅籍描綠本發明，而不應解 【圖式簡單說明】 一較佳具體實施例之立體圖。The present invention has been disclosed in the above preferred embodiments. However, it should be understood that the present technology f is understood to be merely a green invention, and should not be construed as a simple embodiment. Stereo view.
第1圖為本發明第一 圖。Figure 1 is a first view of the present invention.
第5圖為本發明第—較佳具體實施例包含透明殼體之 第3圖為本發明第一 11 201126468 立體圖。 第6圖為本發明第一較佳具體實施例之遮幕示意圖。 第7圖為本發明第二較佳具體實施例之光源模組示意 圖。 主要元件符號說明】 1 基件 11 滑軌 12 量尺 2 可變倍率透鏡模組 21 操縱桿 22 基座 3 光源模組 301 光源模組 302 光線路徑 31 操縱桿 32 LED燈 33 LED燈 34 LED燈 35 LED燈 36 基座 4 屏幕模組 41 操縱桿 42 基座Figure 5 is a perspective view of a first preferred embodiment of the present invention including a transparent casing. Figure 3 is a perspective view of the first 11 201126468 of the present invention. Figure 6 is a schematic view showing the shielding of the first preferred embodiment of the present invention. Figure 7 is a schematic view of a light source module according to a second preferred embodiment of the present invention. Main component symbol description] 1 Base member 11 Slide rail 12 Measuring rule 2 Variable magnification lens module 21 Joystick 22 Base 3 Light source module 301 Light source module 302 Light path 31 Joystick 32 LED light 33 LED light 34 LED light 35 LED light 36 base 4 screen module 41 joystick 42 base
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5 透明殼體 51 活動罩蓋 52 縫隙 53 孔洞 54 遮幕 541 左片體 542 中間片體 543 右片體 6 霧狀體 9 透鏡成像教具 135 Transparent housing 51 Movable cover 52 Slit 53 Hole 54 Curtain 541 Left sheet 542 Intermediate sheet 543 Right sheet 6 Matte 9 Lens imaging aids 13