JP3242849U - Optical Bench Light Sources and Optical Bench - Google Patents

Abstract

A light source for an optical bench and an optical bench capable of shortening the time required for experiments are provided. Kind Code: A1 An optical bench light source 100 is used in an optical bench 200 together with a lens 20 and a screen 30, and has a display section 1 and a control section 2. The display section 1 has a light emitter 50 . The display unit 1 is configured to display a figure 90 using the light emitter 50 . The control section 2 controls the display section 1 . The control unit 2 is configured to be able to change the shape of the figure 90 displayed by the display unit 1 . [Selection drawing] Fig. 1

Description

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act. /page_no=4” “https://kenis.meclib.jp/rishin_jhs_2023/book/#target/page_no=5” “https://kenis.meclib.jp/rishin_jhs_2023/book/#target/page_no= 12" " https://kenis.meclib.jp/rishin_jhs_2023/book/#target/page_no=13” “https://kenis.meclib.jp/risin_jhs_2023/book/#target/page_no=34” “https:// kenis. meclib.jp/rishin_jhs_2023/book/#target/page_no=35” “https://kenis.meclib.jp/rishin_jhs_2023/book/#target/page_no=72” “https://kenis.meclib.j p/rishin_jhs_2023/ book/#target/page_no=73"

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act February 21, 2023 Published by Kennis Co., Ltd. Equipment”, page 2, page 9, page 31, page 69, page 70” March 13, 2023 Published by Kennis Co., Ltd. “2023 | 2024 Kennis Science Equipment No. 960 , pp. 104, 105, 285, 335, 336, 337”

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act March 20, 5th year of Reiwa Published by Kennis Co., Ltd. "2023 Science Room Necessities Science Map, pp. 41, 171" Released on April 3, 2023 via the following website: https://www.rikanavi.com/product/11150080/group https://www.rikanavi.com/product/11150080 https //www.rikanavi.com/product/11150080/load-pdf" "https://www.rikanavi.com/product/11150086/group" "https://www.rikanavi.com/product/11150086" " https://www.rikanavi.com/product/11150086/load-pdf” “https://www.rikanavi.com/product/11150117/group” “https://www.rikanavi.com/product/1115011 7” "https://www.rikanavi.com/product/11150117/load-pdf" "https://www.rikanavi.com/product/11150116/group" "https://www.rikanavi.com/product/1115011 6 "https://www.rikanavi.com/product/11150116/load-pdf" "https://www.rikanavi.com/product/11150101/group" "https://www.rikanavi.com/product/ 11150101"

Applied mutatis mutandis under Article 11 of the Utility Model Act, Article 30, Paragraph 2 of the Patent Law "https://www.rikanavi.com/product/11150101/load-pdf" "https://www.rikanavi.com/ product/11150102/group" "https://www.rikanavi.com/product/11150102" "https://www.rikanavi.com/product/11150102/load-pdf" "https://www.rikanavi.com/product/11150102/group" com /product/11150103/group” “https://www.rikanavi.com/product/11150103” “https://www.rikanavi.com/product/11150103/load-pdf” “https://www.rikanavi . com/product/11150104/group” “https://www.rikanavi.com/product/11150104” “https://www.rikanavi.com/product/11150104/load-pdf” “https://www.rikanavi” vi .com/product/11150058/group” “https://www.rikanavi.com/product/11150058” “https://www.rikanavi.com/product/11150058/load-pdf” “https://www.rikanavi.com/product/11150058/load-pdf” rikanavi.com/product/11150079/group" "https://www.rikanavi.com/product/11150079"

Applied mutatis mutandis under Article 11 of the Utility Model Act, Article 30, Paragraph 2 of the Patent Law "https://www.rikanavi.com/product/11150079/load-pdf" "https://www.rikanavi.com/ product/11150049/group" "https://www.rikanavi.com/product/11150049" "https://www.rikanavi.com/product/11150049/load-pdf" "https://www.rikanavi.com/product/11150049/load-pdf" com /product/11150054/group" "https://www.rikanavi.com/product/11150054" "https://www.rikanavi.com/product/11150054/load-pdf" "https://www.rikanavi.com/product/11150054/load-pdf" . com/product/11150098/group” “https://www.rikanavi.com/product/11150098” “https://www.rikanavi.com/product/11150098/load-pdf” “https://www.rikanavi” vi .com/product/11150097/group" "https://www.rikanavi.com/product/11150097" "https://www.rikanavi.com/product/11150097/load-pdf" "https://www.rikanavi.com/product/11150097/load-pdf" rikanavi.com/product/11150088/group” “https://www.rikanavi.com/product/11150088” “https://www.rikanavi.com/product/11150088/load-pdf”

Applied mutatis mutandis under Article 11 of the Utility Model Act, Article 30, Paragraph 2 of the Patent Law "https://www.rikanavi.com/product/11150089/group" "https://www.rikanavi.com/product/ 11150089" "https://www.rikanavi.com/product/11150089/load-pdf" "https://www.rikanavi.com/product/11150099/group" "https://www.rikanavi.com/prod uct /11150099" "https://www.rikanavi.com/product/11150099/load-pdf" "https://www.rikanavi.com/product/11150095/group" "https://www.rikanavi.com/ product/11150095" "https://www.rikanavi.com/product/11150095/load-pdf" "https://www.rikanavi.com/product/11150091/group" "https://www.rikanavi.com/product/11150095/load-pdf" com /product/11150091" "https://www.rikanavi.com/product/11150091/load-pdf" "https://www.rikanavi.com/product/11150093/group" "https://www.rikanavi.com/product/11150091/load-pdf" . com/product/11150093" "https://www.rikanavi.com/product/11150093/load-pdf"

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act. /page_no=108" "https://kenis.meclib.jp/E960/book/#target/page_no=109" "https://kenis.meclib.jp/E960/book/#target/page_no=288" " https://kenis.meclib.jp/E960/book/#target/page_no=289” “https://kenis.meclib.jp/E960/book/#target/page_no=338” “https://kenis.meclib.jp/E960/book/#target/page_no=338” meclib.jp/E960/book/#target/page_no=339” “https://kenis.meclib.jp/E960/book/#target/page_no=340” “https://kenis.meclib.jp/E960/ book/#target/page_no=341"

Applied mutatis mutandis to Article 30, Paragraph 2 of the Patent Act, which is applied mutatis mutandis under Article 11 of the Utility Model Act. /page_no=44” “https://kenis.meclib.jp/syoumou_2023/book/#target/page_no=45” “https://kenis.meclib.jp/syoumou_2023/book/#target/page_no= 174" " https://kenis.meclib.jp/syoumou_2023/book/#target/page_no=175”

The present invention relates to a light source for an optical bench and an optical bench.

Junior high school science and high school physics classes include classes in which experiments are conducted to learn how convex lenses work. An optical bench is used in the experiment. The optical bench is required to be able to effectively utilize the limited class time.

For example, Japanese Patent Application Laid-Open No. 2004-239993 (Patent Document 1) discloses a light source unit equipped with a light source composed of one or more light emitting diodes, a lens unit equipped with a lens, and a screen unit equipped with a screen. An optical bench is described comprising:

JP-A-2004-239993

In class, the figures projected on the screen may be changed. By changing the figure projected on the screen, multiple students can examine the regularity of the "real image of the convex lens" using different figures, bring together the results that each student has derived, and compare them. . Therefore, by confirming that the regularity of the "real image of the convex lens" holds true regardless of the figure, it can lead to deeper learning for the students. Also, by changing the figure projected on the screen, it is possible to attract the interest of the students. In order to change the figure projected on the screen, the optical bench described in the above publication requires a sheet provided with slits to be placed between the light source and the lens. By replacing the sheet, the figure projected on the screen is changed. As a result, the time required for the experiment increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a light source for an optical bench and an optical bench capable of shortening the time required for experiments.

A light source for an optical bench according to the present invention is a light source for an optical bench used in an optical bench together with a lens and a screen, and comprises a display section and a control section. The display section includes a light emitter. The display unit is configured to display graphics using a light emitter. The control unit controls the display unit. The control unit is configured to be able to change the shape of the figure displayed by the display unit.

ADVANTAGE OF THE INVENTION According to this invention, the light source for optical benches and optical bench which can shorten the time required for experiment can be provided.

1 is a schematic perspective view showing the configuration of an optical bench according to Embodiment 1; FIG. 1 is a schematic front view showing the configuration of a light source for an optical bench according to Embodiment 1; FIG. 2 is an enlarged schematic side view showing the configuration of the optical bench light source according to Embodiment 1. FIG. 1 is a block diagram schematically showing the configuration of a light source for an optical bench according to Embodiment 1; FIG. FIG. 2 is a schematic perspective view showing a state of an experiment using the optical bench according to Embodiment 1; 4 is a schematic front view showing a figure displayed by the light source for an optical bench according to Embodiment 1. FIG. 4 is a flow chart showing an operation of switching a figure displayed by the optical bench light source according to Embodiment 1. FIG. FIG. 7 is a block diagram schematically showing the configuration of a light source for an optical bench according to Embodiment 2; FIG. 11 is a schematic perspective view showing the configuration of an optical bench according to Embodiment 3;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the specification and drawings, the same components or corresponding components are denoted by the same reference numerals, and redundant description will not be repeated.

Embodiment 1
First, the configuration of the optical bench 200 according to Embodiment 1 will be described with reference to FIG. The optical bench 200 is a learning optical bench used for experiments for learning the action of a convex lens. As shown in FIG. 1, the optical bench 200 includes an optical bench light source 100, a lens 20, a lens holder 21, a screen 30, a measure 40, a first base 11, a second base 12, and a second base. It mainly has 3 pedestals 13 .

The optical bench light source 100 is attached to the first pedestal 11 . The optical bench light source 100 is a part that displays graphics. Specifically, the optical bench light source 100 is a part that displays graphics by emitting light. Graphics include letters, numbers, symbols, and the like. The lens 20 is a part that refracts the light emitted by the optical bench light source 100 . A lens 20 is attached to a lens holder 21 . The lens holder 21 is a plate provided with a circular hole. A lens 20 is positioned in the hole. The lens holder 21 is attached to the second pedestal 12 . The screen 30 is arranged on the opposite side of the optical bench light source 100 with respect to the lens 20 . From another point of view, the lens 20 is arranged between the optical bench light source 100 and the screen 30 . The screen 30 is attached to the third base 13 . The screen 30 is a portion onto which the light emitted by the optical bench light source 100 is projected. From another point of view, the screen 30 is a part onto which the figure displayed by the optical bench light source 100 is projected.

Each of measure 40 , first pedestal 11 , second pedestal 12 and third pedestal 13 is directly arranged on installation surface 98 . The installation surface 98 is configured by, for example, a desk (not shown). The direction in which the measure 40 extends is the front-rear direction Y. As shown in FIG. A vertical direction Z is a direction that is vertical to the front-rear direction Y and vertical to the installation surface 98 . The vertical direction Z is, for example, the vertical direction. A direction perpendicular to each of the front-rear direction Y and the up-down direction Z is defined as a left-right direction X. As shown in FIG. Each of the left-right direction X and the front-rear direction Y is, for example, a direction along the horizontal plane.

Each of first pedestal 11 , second pedestal 12 and third pedestal 13 is arranged along measure 40 . From another point of view, the optical bench light source 100, the lens 20, and the screen 30 are arranged in the front-rear direction Y. As shown in FIG.

The optical bench light source 100 mainly includes a display section 1 , a control section 2 , a strength changeover switch 3 , and a figure changeover switch 4 . The display section 1 has a substrate 9 and a plurality of light emitters 50 . The display unit 1 is configured to display graphics using a plurality of light emitters 50 . The details of the graphics displayed by the display unit 1 will be described later.

The substrate 9 is attached to the first pedestal 11 . The substrate 9 is positioned on the first pedestal 11 . Substrate 9 is, for example, a printed wiring board. The shape of the substrate 9 is plate-like. The substrate 9 extends along a plane perpendicular to the front-rear direction Y. As shown in FIG. When viewed from the front-rear direction Y, the substrate 9 has a substantially rectangular shape. The shape of the substrate 9 may be either vertically long or horizontally long. A first notch 19 is provided at a corner of the plate-like substrate 9 . From another point of view, the shape of the substrate 9 when viewed in the front-rear direction Y is a shape in which one of the four corners of a rectangle is notched. Each of the multiple light emitters 50 is fixed to the surface of the substrate 9 . Each of the plurality of light emitters 50 is, for example, a light-emitting diode (LED: Light-Emitting Diode).

The controller 2 is fixed to, for example, the rear surface of the substrate 9 . The back surface of the substrate 9 is the surface opposite to the surface to which the plurality of light emitters 50 are fixed. The control unit 2 is configured to be able to change and control the shape of the graphic displayed by the display unit 1 . Control unit 2 is, for example, a microcomputer. The strength changeover switch 3 is fixed to the back surface of the substrate 9, for example. The intensity changeover switch 3 is a part operated by a student or a teacher when switching the emission intensity of the light emitter 50 . The intensity changeover switch 3 is, for example, a tactile switch. The figure changeover switch 4 is fixed to the back surface of the substrate 9, for example. The figure changeover switch 4 is a part operated by the student or teacher when switching the figure displayed by the display unit 1 . The figure changeover switch 4 is, for example, a tactile switch.

Lens 20 is a convex lens. The lens 20 and lens holder 21 are removable from the second base 12 . The lens 20 and lens holder 21 are positioned on the second base 12 . An axis A of the lens 20 extends along the front-rear direction Y. As shown in FIG. Axis A passes through each of the optical bench light source 100 and the screen 30 .

The shape of the screen 30 is plate-like. The screen 30 extends along a plane perpendicular to the front-rear direction Y. As shown in FIG. When viewed from the front-rear direction Y, the shape of the screen 30 is substantially rectangular. The shape of the screen 30 may be either vertically long or horizontally long. A second notch 29 is provided at a corner of the plate-like screen 30 . From another point of view, the shape of the screen 30 is a shape in which one of the four corners of a rectangle is notched when viewed in the front-rear direction Y. As shown in FIG. Screen 30 is translucent, for example. When a figure is projected on one side of the screen 30, the figure is visible when viewed from the other side of the screen 30. FIG.

The shape of the measure 40 is band-like. The measure 40 is configured, for example, so that it can be spirally wound. A plurality of graduations 49 are provided on the surface of the measure 40 . The scales 49 are arranged along the front-rear direction Y. As shown in FIG. The value of the scale 49 positioned at the center of the measure 40 in the front-rear direction Y is 0, for example. In the front-rear direction Y, the value of the scale 49 increases as the distance from the scale 49 indicating 0 increases.

Next, the configuration of the optical bench light source 100 according to the first embodiment will be described with reference to FIGS. 2 to 4. FIG.

As shown in FIG. 2, the number of light emitters 50 in the display section 1 is fifty, for example. The multiple light emitters 50 have a first light emitter section 51 and a second light emitter section 52 . The color of the light emitted by the first light emitter 51 and the color of the light emitted by the second light emitter 52 are different from each other. The plurality of light emitters 50 preferably has a third light emitter portion 53 and a fourth light emitter portion 54 . The color of light emitted by the first light emitter 51, the color of light emitted by the second light emitter 52, the color of light emitted by the third light emitter 53, and the color of light emitted by the fourth light emitter 54 are different from each other. The color of the light emitted by the first light emitter portion 51 is, for example, blue. The color of the light emitted by the second light emitter section 52 is, for example, green. The color of the light emitted by the third light emitter portion 53 is, for example, red. The color of the light emitted by the fourth light emitter section 54 is, for example, yellow. In FIG. 2, each of the first light emitter section 51, the second light emitter section 52, the third light emitter section 53, and the fourth light emitter section 54 is distinguished by being indicated by different hatching.

As shown in FIG. 3 , each of the plurality of light emitters 50 has a flat surface 15 . The flat surface 15 is provided at the tip of the light emitter 50 . The flat surface 15 faces the lens 20 (see FIG. 1). The flat surface 15 extends along a plane perpendicular to the front-rear direction Y. As shown in FIG. The flat surface 15 is a portion through which at least part of the light emitted by the light emitter 50 passes.

As shown in FIG. 4, the control unit 2 is electrically connected to the display unit 1, the strength changeover switch 3, and the figure changeover switch 4. As shown in FIG. The control unit 2 is configured to be able to control the display unit 1 . Specifically, the control unit 2 is configured to be able to switch between lighting and extinguishing of each of the plurality of light emitters 50 . The control unit 2 is configured to be able to switch the intensity of light emitted by each of the plurality of light emitters 50 .

Each of the intensity changeover switch 3 and the graphic changeover switch 4 is configured to transmit an operation signal to the control section 2 while the switch is being pressed (switch ON). Each of the intensity changeover switch 3 and the graphic changeover switch 4 is configured to stop transmission of the operation signal to the control section 2 when the switch is released (switch OFF). The control unit 2 is configured to be able to determine whether the graphic changeover switch 4 is pressed long or short.

The control unit 2 includes a graphic switching signal acquisition unit 2a, a storage unit 2b, a graphic switching determination unit 2c, a strength switching signal acquisition unit 2d, and a display control unit 2e. The graphic switching signal acquisition unit 2a is configured to be able to acquire an operation signal transmitted from the graphic switching switch 4. FIG. The storage unit 2b stores graphic data of the graphic displayed by the display unit 1. FIG. Specifically, the storage unit 2b stores lighting pattern data of a plurality of light emitters 50 (see FIG. 2).

The graphic switching determination section 2c is configured to be able to determine whether or not the graphic switching switch 4 is pressed long based on the operation signal acquired by the graphic switching signal acquisition section 2a. Based on the operation signal obtained by the graphic switching signal obtaining section 2a, the graphic switching determination section 2c reads out the graphic data to be displayed on the display section 1 from the storage section 2b, and enables the read graphic data to be transmitted to the display control section 2e. It is configured. The intensity switching signal acquisition unit 2d is configured to be able to acquire the operation signal transmitted from the intensity switching switch 3 . The display control section 2e is configured to be able to determine which of the plurality of light emitters 50 is to be turned on, based on the graphic data transmitted from the graphic switching determination section 2c. The display control unit 2e is configured to be able to control the intensity of the light emitted by the plurality of light emitters 50 in two stages, for example, "strong" and "weak", based on the operation signal transmitted from the intensity changeover switch 3. ing.

Next, the operation of the optical bench light source 100 according to the first embodiment will be described with reference to FIGS. 4 to 7. FIG. In FIGS. 5 and 6, the luminous bodies 50 painted in black indicate the luminous bodies 50 emitting light.

As shown in FIG. 5, optical bench light source 100 displays graphic 90 . Graphic 90 is, for example, the shape of the character "and". A figure 90 is projected onto the screen 30 through the lens 20 . An image 99 is thereby projected on the screen 30 . Specifically, the light emitted by the optical bench light source 100 is radially diffused. Some of the diffused light is refracted by passing through lens 20 . A real image (image 99) is formed by condensing the refracted light on the screen 30. FIG. When viewed from the screen 30 toward the optical bench light source 100, the shape of the image 99 is a shape obtained by flipping the figure 90 vertically and horizontally about the axis A. FIG. The optical bench 200 is an experimental instrument used for learning that a figure projected through a convex lens is vertically and horizontally reversed.

As shown in FIG. 4 , the control section 2 controls the display section 1 . Specifically, the control unit 2 switches the figure 90 displayed by the display unit 1 by controlling lighting and extinguishing of each of the plurality of light emitters 50 .

As shown in FIG. 6, the display unit 1 can display seven types of graphics 90, for example. From another point of view, the figure 90 consists of a first figure 91, a second figure 92, a third figure 93, a fourth figure 94, a fifth figure 95, a sixth figure 96, and a seventh figure. 97.

As shown in FIG. 6A, the shape of the first figure 91 is the shape of an arrow extending in the up-down direction Z. As shown in FIG. Specifically, the shape of the first figure 91 is the shape of an upward arrow. From another point of view, the shape of the first figure 91 is bilaterally symmetrical and vertically asymmetrical. The display section 1 displays the first figure 91 using only the first light emitter section 51 . From another point of view, the color of the first graphic 91 is blue.

As shown in FIG. 6(b), the shape of the second figure 92 is the shape of an arrow extending in the horizontal direction X. As shown in FIG. Specifically, the shape of the second graphic 92 is the shape of a rightward arrow. From another point of view, the shape of the second figure 92 is vertically symmetrical and left-right asymmetrically. The display unit 1 displays a second figure 92 using the first light emitter 51 and the second light emitter 52 . Specifically, the tip of the arrow of the second graphic 92 is displayed using the second light emitter section 52 . A portion of the second graphic 92 other than the tip of the arrow is displayed using the first light emitter section 51 . The color of the tip of the arrow of the second graphic 92 is green. From another point of view, the color of the arrow tip of the second graphic 92 is different from the color of the first graphic 91 . The color of the portion of the second graphic 92 other than the tip of the arrow is blue.

As shown in FIG. 6(c), the shape of the third figure 93 is a shape in which the first figure 91 and the second figure 92 overlap. The shape of the third figure 93 is a shape in which the first figure 91 and the second figure 92 are displayed simultaneously. The shape of the third figure 93 is left-right asymmetrical and vertically asymmetrical. A first graphic 91 , a second graphic 92 and a third graphic 93 constitute a first graphic set 81 .

As shown in FIG. 6(d), the shape of the fourth figure 94 is, for example, the shape of the hiragana character "と". The display unit 1 displays a fourth figure 94 using the first light emitter 51 , the second light emitter 52 , the third light emitter 53 , and the fourth light emitter 54 . Specifically, the lower right corner of the character “to” of the fourth graphic 94 is displayed using the second light emitter section 52 . The upper right end of the character “and” of the fourth graphic 94 is displayed using the third light emitter section 53 . The upper left corner of the character “and” of the fourth graphic 94 is displayed using the fourth light emitter section 54 . A portion of the fourth figure 94 other than the end of the letter “and” is displayed using the first light emitter section 51 .

As shown in FIG. 6(e), the shape of the fifth figure 95 is, for example, the shape of the letter "d" of the alphabet. The lower right end of the letter “d” of the fifth graphic 95 is displayed using the second light emitter section 52 . The portion other than the lower right end of the letter “d” of the fifth graphic 95 is displayed using the first light emitter section 51 .

As shown in FIG. 6(f), the shape of the sixth figure 96 is, for example, the shape of the letter "I" in katakana. The upper right end of the letter “I” of the sixth graphic 96 is displayed using the third light emitter section 53 . A portion of the sixth figure 96 other than the upper right end of the letter “I” is displayed using the first light emitter section 51 .

As shown in FIG. 6(g), the shape of the seventh figure 97 is, for example, the shape of the letter "F" of the alphabet. The upper right end of the letter “F” of the seventh graphic 97 is displayed using the third light emitter section 53 . The upper left end of the letter “F” of the seventh graphic 97 is displayed using the fourth light emitter section 54 . A portion other than the upper right end and the upper left end of the letter “F” of the seventh graphic 97 is displayed using the first light emitter section 51 .

The shape of each of the fourth figure 94, the fifth figure 95, the sixth figure 96 and the seventh figure 97 is horizontally asymmetrical and vertically asymmetrical. A fourth graphic 94 , a fifth graphic 95 , a sixth graphic 96 and a seventh graphic 97 constitute a second graphic set 82 .

As shown in FIG. 7, the controller 2 determines whether or not the figure changeover switch 4 has been pressed (step S10). If the graphic changeover switch 4 has not been pressed (NO in step S10), the control section 2 repeats the process of step S10.

If the figure changeover switch 4 has been pressed (YES in step S10), the control unit 2 determines whether the figure changeover switch 4 has been pressed for a long time (step S20). Specifically, the control unit 2 determines whether or not the time for which the figure changeover switch 4 has been pressed has exceeded a threshold value. The threshold is, for example, 2 seconds. When the time for which the figure changeover switch 4 is pressed exceeds the threshold value, the control unit 2 determines that the figure changeover switch 4 has been pressed for a long time (YES in step S20). If the figure changeover switch 4 is turned off before the time the figure changeover switch 4 is pressed exceeds the threshold value, the controller 2 determines that the figure changeover switch 4 has not been pressed long (NO in step S20). .

When the figure changeover switch 4 is pressed long (YES in step S20), the control section 2 changes the figure set displayed by the display section 1 (step S30). Specifically, when the display unit 1 displays any of the figures included in the first figure set 81 (see FIG. 6), the control unit 2 causes the figure displayed by the display unit 1 to be the fourth figure 94. (Refer to FIG. 6(d)). When the display unit 1 is displaying any of the figures included in the second figure set 82 (see FIG. 6), the control unit 2 changes the figure displayed by the display unit 1 to the first figure 91 (see FIG. 6A). )).

If the graphic changeover switch 4 has not been pressed long (NO in step S20), the control section 2 changes the graphic displayed by the display section 1 (step S40). When the display unit 1 displays any of the graphics included in the first graphics set 81, the control unit 2 changes the graphics displayed by the display unit 1 to other graphics included in the first graphics set 81. do. Specifically, every time the graphic changeover switch 4 is pressed, the control unit 2 causes the display unit 1 to display the graphics in the order of the first graphic 91, the second graphic 92, and the third graphic 93. Change from one figure to the next figure (see FIG. 6). When the display unit 1 displays any of the graphics included in the second graphics set 82, the control unit 2 changes the graphics displayed by the display unit 1 to other graphics included in the second graphics set 82. do. Specifically, every time the figure changeover switch 4 is pressed, the controller 2 changes the figure displayed by the display part 1 in the order of the fourth figure 94, the fifth figure 95, the sixth figure 96, and the seventh figure 97. Change the currently displayed figure to the next figure (see FIG. 6).

When the intensity changeover switch 3 is pressed, the control unit 2 switches the intensity of the light emitted by the plurality of light emitters 50 between two levels, for example, "strong" and "weak." By setting the intensity of the light emitted by the plurality of light emitters 50 to "high", it is possible to make the image 99 (see FIG. 5) easier to visually recognize. By setting the intensity of the light emitted by the plurality of light emitters 50 to "weak", in an experiment in which the user looks into the optical bench light source 100 through the lens 20 (experiment of observing a virtual image), the light enters the eye from the plurality of light emitters 50. You can dim the light.

Next, effects of the optical bench light source 100 and the optical bench 200 according to the first embodiment will be described.

According to the optical bench light source 100 according to Embodiment 1, the display unit 1 is configured to display the figure 90 using the light emitter 50 . The control unit 2 is configured to be able to change the shape of the figure 90 displayed by the display unit 1 . Therefore, the optical bench light source 100 can change the shape of the figure 90 projected onto the screen 30 without using a sheet provided with slits. As a result, compared to the case of switching the shape of the graphic 90 using a sheet, it is possible to reduce the trouble of preparing a replacement sheet, exchanging the sheet, putting the sheet away, and storing the sheet. As a result, the time required for the experiment can be shortened.

When the figure 90 is projected onto the screen 30 using a sheet provided with slits, the light reaching the screen 30 is weakened because part of the light emitted by the optical bench light source 100 is blocked by the sheet. In this case, in order to observe the image 99 projected on the screen 30, the experiment may be conducted in a dark classroom. According to the optical bench light source 100 according to Embodiment 1, the light emitted by the optical bench light source 100 reaches the screen 30 without being blocked by the sheet provided with the slit. Therefore, it is possible to prevent the light reaching the screen 30 from becoming weak. This allows experiments to be conducted without darkening the classroom. As a result, the teacher can easily check how the students are doing during the experiment.

According to the optical bench light source 100 according to the first embodiment, the display section 1 displays the figure 90 using the first light emitter section 51 and the second light emitter section 52 . The color of the light emitted by the first light emitter section 51 is different from the color of the light emitted by the second light emitter section 52 . Therefore, it becomes easy to understand that the image 99 projected on the screen 30 is vertically and horizontally reversed with respect to the figure 90 . This makes it easier for students to understand how convex lenses work. As a result, the student's learning efficiency can be improved. Furthermore, when a teacher instructs a student, the student can be instructed while making the student pay attention to the color. This makes it easier for the teacher to guide the students.

If the distance between the light emitter 50 and the lens 20 and the distance between the lens 20 and the screen 30 in the front-rear direction Y are not appropriate, the image 99 projected on the screen 30 will be blurred. If the emitter 50 is for example a bullet-shaped LED with a curved tip, the emitter 50 protrudes too much from the substrate 9 . Therefore, the distance between the light emitter 50 and the lens 20 will be much shorter than the distance between the substrate 9 and the lens 20 . As a result, when the optical bench light source 100 is positioned with respect to the substrate 9, the image 99 may be blurred. On the other hand, according to the optical bench light source 100 according to Embodiment 1, the light emitter 50 has the flat surface 15 at the tip. The flat surface 15 faces the lens 20 . Therefore, it is possible to prevent the light emitter 50 from projecting excessively from the substrate 9 . As a result, blurring of the image 99 projected on the screen 30 can be suppressed.

According to the optical bench light source 100 according to the first embodiment, the graphic 90 has the first graphic 91 and the second graphic 92 . A first figure 91 is in the shape of an arrow extending in the up-down direction Z. As shown in FIG. A second figure 92 is in the shape of an arrow extending in the left-right direction X. As shown in FIG. From another point of view, the optical bench light source 100 can display a first figure 91 that is bilaterally symmetrical and vertically asymmetrical, and a second figure 92 that is both vertically symmetrical and asymmetrically bilaterally. can. When the optical bench light source 100 displays the first figure 91 or the second figure 92 , the image displayed on the screen 30 is larger than when the optical bench light source 100 displays a left-right asymmetric figure and a top-bottom asymmetric figure. This facilitates the prediction of the image 99 to be viewed. Therefore, the student can progress the experiment step by step, from an experiment whose result is easy to predict to an experiment whose result is difficult to predict.

According to the optical bench light source 100 according to the first embodiment, the color of the tip of the arrow of the second figure 92 is different from the color of the first figure 91 . Therefore, when a graphic (third graphic 93) in which the first graphic 91 and the second graphic 92 are superimposed is projected onto the screen 30, the image 99 projected on the screen 30 is the vertical and horizontal inversion of the third graphic 93. It is possible to make it easy to understand that it is a figure that has been drawn.

When observing an image 99 projected on the screen 30, the appearance of the image 99 changes depending on the direction in which the screen 30 is observed. Specifically, the image 99 viewed from the lens 20 toward the screen 30 is horizontally inverted with respect to the image 99 viewed from the screen 30 toward the lens 20 . Therefore, it is preferable that the direction in which the screen 30 should be observed is indicated from the teacher to the student. According to the optical bench 200 according to Embodiment 1, the shape of the screen 30 is plate-like. A second notch 29 is provided at a corner of the plate-like screen 30 . Therefore, the teacher can instruct the students in which direction to observe the screen 30 with the second notch 29 as a reference. Specifically, the teacher can instruct the students to observe the screen 30 from a direction in which the second notch 29 appears to be located on the right side of the screen 30, for example. As a result, it is possible to facilitate the instruction of the experiments from the teacher to the students.

According to the optical bench 200 according to Embodiment 1, the first notch 19 is provided at the corner of the plate-shaped substrate 9 . Therefore, the teacher can instruct the students about the direction in which the optical bench light source 100 and the screen 30 should be arranged with reference to the first notch 19 and the second notch 29 . Specifically, the teacher positions the second notch 29 on the same side as the first notch 19 (for example, on the right side when viewed from the screen 30 toward the optical bench light source 100). It can be instructed to position the screen 30 as follows. Thereby, when each of a plurality of students conducts an experiment, it is possible to unify the orientation of arranging each of the optical bench light source 100 and the screen 30 among the plurality of students. As a result, the teacher can easily determine the direction in which the image 99 projected on the screen 30 is observed among the students by instructing the students in the direction in which the screen 30 is observed with reference to the second notch 29, for example. can be unified into

Note that the configuration of the optical bench 200 according to Embodiment 1 is not limited to the configuration described above. Specifically, the light emitter 50 may be an image display device such as a liquid crystal display and an organic EL (Electro-Luminescence) display. The optical bench 200 may have, for example, a first convex lens and a second convex lens. The focal length of the first convex lens is different from the focal length of the second convex lens. Therefore, the student or teacher can select either the first convex lens or the second convex lens as the lens to be used in the experiment. This allows students to learn the relationship between the focal length of the convex lens and the conditions for forming a real image.

Embodiment 2
Next, the configuration of the optical bench light source 100 according to Embodiment 2 will be described with reference to FIG. The optical bench light source 100 according to the second embodiment differs from the optical bench light source 100 according to the first embodiment mainly in that it has a receiving section connected to the control section 2. In other respects, the configuration is substantially the same as that of the optical bench light source 100 according to the first embodiment. In the following, the description will focus on the differences from the configuration of the optical bench light source 100 according to the first embodiment.

As shown in FIG. 8 , the optical bench light source 100 has a receiver 6 . The receiver 6 is electrically connected to the controller 2 . Receiving unit 6 receives lighting pattern data of light emitter 50 from information processing device 110 such as a personal computer and a tablet, for example. The storage unit 2b stores the lighting pattern data received by the reception unit 6. FIG. The controller 2 can control the figure 90 displayed by the display 1 based on the lighting pattern data received by the receiver 6 .

According to the optical bench light source 100 according to the second embodiment, a student or teacher can create lighting pattern data using the information processing device 110 and transmit the lighting pattern data to the optical bench light source 100 . Thereby, the optical bench light source 100 can display an arbitrary figure.

Embodiment 3
Next, the configuration of the optical bench 200 according to Embodiment 3 will be described with reference to FIG. The configuration of the optical bench 200 according to Embodiment 3 differs from that of the optical bench 200 according to Embodiment 1 mainly in that it has rails. The configuration is substantially the same as that of the optical bench 200 concerned. The following description will focus on points that differ from the configuration of the optical bench 200 according to the first embodiment.

As shown in FIG. 9, the optical bench 200 may have two rails 41, for example. Each of the two rails 41 extends along the front-rear direction Y. As shown in FIG. Each of the two rails 41 is separated from each other. Each of the two rails 41 is arranged in the left-right direction X. As shown in FIG. A scale 49 is provided on each surface of the two rails 41 .

The lens 20 may be directly fixed to the second pedestal 12 . Each of the first pedestal 11 , the second pedestal 12 and the third pedestal 13 is attached to two rails 41 . Each of first pedestal 11 , second pedestal 12 and third pedestal 13 is slidable on two rails 41 . From another point of view, each of the optical bench light source 100 , the lens 20 and the screen 30 is movable along the rails 41 . Each of the first pedestal 11 , the second pedestal 12 and the third pedestal 13 may have a plurality of grips 59 . The first pedestal 11 uses a plurality of gripping portions 59 to grip each of the two rails 41 . Similarly, the second pedestal 12 uses a plurality of gripping portions 59 to grip each of the two rails 41 . The third pedestal 13 uses a plurality of gripping portions 59 to grip each of the two rails 41 .

The optical bench 200 according to Embodiment 3 has rails 41 . Each of first pedestal 11 , second pedestal 12 and third pedestal 13 holds rail 41 . Therefore, it is possible to suppress the displacement of each of the optical bench light source 100 , the lens 20 and the screen 30 .

According to the optical bench 200 according to Embodiment 3, the scale 49 is provided on each surface of the two rails 41 . Therefore, when positioning the optical bench light source 100, the lens 20, and the screen 30, the optical bench 200 is viewed from the right and the optical bench 200 is viewed from the left along the left-right direction X. , the scale 49 can be made easier to see.

The configuration of the optical bench 200 according to Embodiment 3 is not limited to the configuration described above. Specifically, the number of rails 41 that the optical bench 200 has may be one. Each of first pedestal 11 , second pedestal 12 and third pedestal 13 may be attached to one rail 41 .

It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims of the utility model registration rather than the above description, and is intended to include all changes within the meaning and range of equivalents of the claims of the utility model registration.

1 display unit 2 control unit 15 flat surface 19 first notch 20 lens 30 screen 50 light emitter 51 first light emitter 52 second light emitter 90 figure 91 first figure 92 second figure, 100 light source for optical bench, 200 optical bench.

Claims (6)

An optical bench light source used in an optical bench with a lens and a screen,
a display unit including a light emitter and configured to display a figure using the light emitter;
A control unit that controls the display unit,
The light source for an optical bench, wherein the control section is configured to be able to change the shape of the figure displayed by the display section. The light emitter includes a first light emitter section and a second light emitter section,
The display unit displays the figure using the first light emitter and the second light emitter,
2. The light source for an optical bench according to claim 1, wherein the color of light emitted by said first light emitter is different from the color of light emitted by said second light emitter. The light emitter has a flat surface facing the lens,
3. The light source for an optical bench according to claim 1, wherein said flat surface is provided at the tip of said light emitter. The figure is
a first figure having the shape of an arrow along the vertical direction;
a second figure having the shape of an arrow along the left-right direction,
3. The light source for an optical bench according to claim 1, wherein the color of the tip of the arrow of said second graphic is different from the color of said first graphic. An optical bench light source according to claim 1 or 2, the lens, and the screen,
the lens is disposed between the optical bench light source and the screen;
An optical bench, wherein the graphic displayed by the optical bench light source is projected onto the screen through the lens. The shape of the screen is plate-like,
6. The optical bench according to claim 5, wherein notches are provided at the corners of the plate-like screen.

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