KR890001674B1 - Video game apparatus - Google Patents

Abstract

The main body (6) of the device has a monitor (1) at a lower position and a reflecting mirror (3) and a projection lens (2) in inclination over the monitor, a screen (4) being placed so as to make the image on the monitor reflect from the mirror (3) to project through lens (2) on the screen (4) in enlarged image. Reflexibility of screen (4) is 30-90% and its curve radius being 800mm to 3000mm.

Description

Large Screen Video Game Device

1 is an illustration of an enlarged projection of the present invention.

2 is a diagram illustrating the configuration of a screen.

3 is a supplementary view explaining the operation of the screen configuration of FIG.

4 is another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: monitor 2: projection lens

3: reflector 4: screen

5: game player 6: game console body

A: Distance between the projection lens and the monitor R: Screen out

S: Screen surface Y: Center of curvature of the screen

X: Distance between 2 and 4 Y: Distance between 4 and 5

The present invention relates to a large screen video game device having a large screen using an optical device. In the video game apparatus for this purpose, in order to have a large screen, generally known logic of the image projection method can be utilized, but the conventional image projection method is a function that multiple people must watch simultaneously. As the screen scattering rate must be high and the viewing angle must be wide, at least 2-3 times of the screen size should be seen so that the entire surface of the screen can be seen evenly. Should watch away. On the other hand, the present invention uses one person per game machine for the purpose, so even if the screen is enlarged in order to install as many as possible in a narrow place, the front of the screen is evenly seen at a short distance within 1.5 meters. In other words, the brightness is increased by more than twice as opposed to the function of the conventional projection method.

In view of the above-mentioned problems, the present invention installs a projection lens at the front end of the monitor to form a magnified image on the screen at a short throw distance, and takes the curvature of the screen so that the reflection distance is within 1.5 meters based on the screen, and reflectance of the surface thereof. It is to reproduce the screen increased by 30% or more than the conventional brightness by increasing the will be described in detail based on the drawings. In the actual observation by the projection magnification, the light of the monitor is generally focused and focused on the screen, so that the screen itself is low in illumination due to the influence of external light. To overcome this, a screen with high reflectivity should be used, but a fairly bright screen should be reproduced at the player's position. For this purpose, the structure of the present invention is, for example, as shown in FIG. 1, the monitor 1 is placed at the lower end of the main body 6 of the game machine, and the reflector 3 and the projection lens 2 are inclined thereon, respectively, and the screen 4 is placed in front of the screen 4. After the image of the monitor 1 is reflected on the reflector 3 is configured to enlarge the image on the screen (4) through the projection lens (2). At this time, the projection lens (2) for the purpose of the present invention requires a configuration of the projection lens of the image distance having a ratio of more than four times within the projection distance 1.5 med, but the structure of the screen is equally important. The general function of the screen is to scatter the light in the formed image in all directions, which is inversely proportional to the brightness and proportional to the viewing angle. In other words, reflectance, which is the opposite of scattering rate, is proportional to brightness and inversely proportional to viewing angle. Therefore, in order to enhance the brightness, it is necessary to increase the reflectance and to take the curvature to enhance the condensing ability accordingly. In determining the curvature, the following conditions are required, which will be described in detail with reference to FIGS. 1 and 2 in the auxiliary drawings of FIG. X in FIG. 1 is a projection distance from the projection lens 2 to the screen 4, and Y is a condensing distance due to the reflectance and curvature of the screen. Also in obtaining such a specification, first, Y, which is the reflected back light collecting distance based on the projection distance, is determined.

球面)에 있어서 곡률과 스크린 촛점 F와의 관계는

(공식 1)이므로 우선 F를 선산정하고 이와같은 F를 구하는 공식은

(공식 2)이며 이는 곧 상기 공식 1과 연계하면 R=2F가 된다. 이를 예를 들어 설명하면 20"모니커를 예컨대 45"로 확대할 경우의 투사거리인 X가 90cm이고 반사집광거리(=최단 시청거리)인 Y가 200cm라고 할때 상기 공식에 대입하면 스크린의 곡률 촛점은 62cm로 하고 그 곡률반경인 R는 124cm로 정한다는 결론이다. 그런데 이와같은 곡률은 가진 스크린이라 하더라도 어느 정도 산란률이 있어야만 영상이 좋아지고 또 반사율에 의한 밝기제고도 고려돼야 한다.At this time, X and Y are defined as the proportional distance by the magnification of the projection lens image distance as required by A by the projection lens source, and the action of Y depends on the curvature of the screen with respect to X. Calculate based on Concave spherical surface (

The relationship between curvature and screen focus F

Since (Formula 1), we first select F and then find F like this.

(Formula 2), which, in conjunction with Equation 1 above, results in R = 2F. For example, when the projection distance X is 90 cm when the 20 "moniker is enlarged to 45", for example, and the reflection focusing distance (= shortest viewing distance) Y is 200 cm, the screen curvature The focus is 62cm and the radius of curvature R is 124cm. However, even if the screen has such curvature, the scattering rate should be good to some extent to improve the image and to increase the brightness by reflectance.

As already described, scattering rate is inversely proportional to reflectance, proportional to viewing angle, and inversely proportional to brightness. However, it is better to increase the brightness than the viewing angle because the viewing angle should be determined by the counterfeit of individual gamers rather than the number of people for the purpose of this game machine.The brightness is proportional to the screen's condensing ability, which is also proportional to the screen's reflectance. Thus, for example, a generally known screen having a scattering rate of 100% and a reflectance of less than 10%, and a reflectance of the screen 4 of the present invention when the scattering rate is 0% and the reflectance is close to 100%, i.e., based on a concave spherical mirror. Is 30% -90% and spawning rate is 10% -70%. The reason for this is to improve the scattering rate to some extent so that a good image can be formed and a bright image can be reproduced. For the purpose of understanding, the third " a " and the third " b " If the beam S is incident on the mirror surface close to 100% as shown in the third "a", the brightness of the reflected SI should be viewed as it is, but only at the position of the SI. . On the other hand, when the ray S is incident on a so-called paper-like matte surface whose reflectance is close to 0% as shown in the third "b", the reflected SI light is scattered in all directions, so the viewing range is very wide, but the brightness of the light is Decreases proportionally. By plotting this, we can correlate the relationship between scattering rate, brightness (= GAIN) and observation range as follows. (Viewing range = angle scattered from the center of the screen)

로 그 표면을 결정하면 되는 것이다. 이와같이 본 발명에 있어서는 스크린의 곡률(R)과 그 표면의 매시도인 반사율(S)이 중요한 역활를 하는 것이다. 이의 이해를 돕기위해 상기 광학적 재원이 구체적으로 응용된 예를 들어 설명한다.That is, as shown in the above chart, the scattering rate and the reflectance are inversely proportional, and the viewing range and the scattering rate are mutually proportional, and the viewing range and the reflectance are inversely mutually proportional. Therefore, the surface of high-sensitivity screen used in general projection optical system is about 75% of scattering rate, and the viewing range is about 67.5 degrees, but the brightness is very dark. On the other hand, since the surface of the screen used in the present invention has a reflectance of 30% or more, the brightness becomes 30% or more. Of course, this reflecting surface is determined by the surface particle size of the screen surface, which is different depending on the material and process conditions. Generally, the surface particle size is determined by the matte surface of 200 # (Mash) and the glossy front slope of 3000 # (Mash). It becomes. For example, surface particles with a reflectance of 40%

This is done by determining the surface. In this way, in the present invention, the curvature R of the screen and the reflectance S, which is a mesh degree of the surface, play an important role. In order to help understand this, an example in which the optical resource is specifically applied will be described.

Example 1

As shown in FIG. 4A, the monitor 1 is installed at the lower end of the outer casing 6, the reflector 3 is installed at the lower side thereof, and the projection lens 2 is installed at the upper part thereof, and the screen 4 is installed at the ceiling position. By reflecting the light formed on the screen to the shear reflector (3A) specifications of the device is as follows.

Monitor Size: 355.5mm (14 ")

○ Screen Size: 1066.8mm (42 ")

○ X: 1200mm

○ Y (= YI + Y2): 1500mm

○ R: 1333mm

○ S reflectance 30% -90%

○ F: 666.5mm

Based on the above logic, the magnification of the screen is (3) 2 = 9 times, the shortest viewing distance Y = 1500mm, and the incidence distance X = 1200mm, which is represented by (Formula 1) and (Formula 2). According to the present invention, the curvature of the screen becomes R = 1333mm, and the screen reflectance is 40% or more and the brightness is doubled. Therefore, the present invention of the specification is brighter and sharper than the conventional game machine image, which is enlarged by 9 times within the short throwing distance 1.5. It can be observed.

Example 2

4 " b " is different from the fourth " a ", while the fourth " a " divides the distance of Y, whereas the fourth " b " I've raised it.

○ Monitor Size: 14 "(355.6m / m)

○ Screen size: 60 "(1524m / m)

○ X (= X1 + X2: 1500m / m

○ Y: 1500m / m

○ R: 1500m / m

○ S reflectance: 50%

○ F: 750mm

이며 최단시청거리 1500m/m이내에서 종래보다 2배이상의 밝기의 커형화면 비데오 게임을 할 수 있는 것이다.In this case, the magnification of the screen

And within the shortest viewing distance of 1500m / m, it is possible to play large screen video games of twice the brightness than conventional.

In the present invention as described above, it is preferable that the curvature of the screen is between R = 800 m / m and 3000 m / m. If R = 800, X and Y are too small to get a large screen. If it is 3000m / m or more, X and Y are too large, which is why the shortest viewing distance is long. In the above embodiment, even if a large fresnel lens is inserted between the distance between the player 5 and the distance Y between the screen 4, the result is increased, and the VTR image can be projected and enlarged by the same logic. have. Therefore, in the present invention, the screen curvature is 800m / m-3000m / m and the reflectance of the surface is 30% -90 when the image of the monitor of the 14 "-20" electronic game machine is enlarged from 4 to 25 times. As a percentage, the screen game can be played at twice the brightness of the conventional display within a short viewing distance.

Claims (4)

Place the monitor 1 at the lower end of the main body 6 of the game machine, install the reflector 3 and the projection lens 2 inclined thereon, and place the screen 4 in front of the main body 6, but the image of the monitor 1 is placed on the reflector 3 A large screen video game machine configured to be enlarged and imaged on the screen (4) through the projection lens (2) after being reflected. The video game machine according to claim 1, wherein the screen (4) has a reflectance of 30% -90% and a radius of curvature of 800m / m-3000m / m. 2. The mirror according to claim 1, further comprising a reflecting mirror 3A in front of the projection lens 2 so that the image of the monitor passing through the projection lens 2 is enlarged and imaged on the screen 4 after being reflected by the reflecting mirror 3A. One big screen video game machine. The large screen video game machine according to claim 1, further comprising an inclined reflector 3A beneath the screen 4 so that the screen of the monitor formed on the screen 4 can be seen by the player through the reflector 3A. .

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