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1. 发明授权

US5146322A Projection television apparatus for reducing red-emphasized peripheral screen portions 失效
标题翻译：用于减少红色强调的外围屏幕部分的投影电视设备
公开(公告)号：US5146322A
公开(公告)日：1992-09-08
申请号：US592458
申请日：1990-10-05
申请人： Hiroshi Tetsuda
发明人： Hiroshi Tetsuda
IPC分类号： H01J29/89 , H04N5/74 , H04N9/31
CPC分类号： H04N9/31
摘要： A projection television apparatus is composed of a combination of cathode ray tubes for the three primary colors, red, green and blue. The green and blue cathode ray tubes have a multilayered interference filter disposed on the inner surface thereof and display light on a screen, the intensity of which is varied by the multilayered interference filter, passing through a series of projection lenses positioned in front of the cathode ray tubes. The red cathode ray tube has no multilayered interference filter and produces light having a distribution of luminous intensity nearly equal to that of the green and blue lights. This is achieved by displaying light, the luminous intensity of which is not varied, passing through a series of projection lenses with a diaphragm.
摘要翻译：投影电视装置由用于三原色的阴极射线管，红色，绿色和蓝色的组合组成。绿色和蓝色阴极射线管具有设置在其内表面上的多层干涉滤光器，并且在屏幕上显示光，其强度由多层干涉滤光片改变，通过位于阴极前面的一系列投影透镜射线管。红色阴极射线管没有多层干涉滤光片，产生的发光强度几乎等于绿色和蓝色光的分布。这是通过显示其发光强度不变的光，通过具有隔膜的一系列投影透镜来实现的。

2. 发明授权

US5144417A Projection type television apparatus 失效
标题翻译：投影型电视机
公开(公告)号：US5144417A
公开(公告)日：1992-09-01
申请号：US631151
申请日：1990-12-20
申请人： Kazuo Tsukagoshi , Hiroshi Tetsuda , Hiroshi Kawamura
发明人： Kazuo Tsukagoshi , Hiroshi Tetsuda , Hiroshi Kawamura
IPC分类号： G02B5/00 , G02B5/28 , G02B27/00 , H01J31/10 , H04N5/74 , H04N9/31
CPC分类号： H04N9/31
摘要： In a projection type television apparatus, a first and a second color selecting device are located on an optical light path passing through a cathode ray tube and a series of projection lenses are disposed in front of the cathode ray tube without a color selecting device therein. The first color selecting device has a high refractive factor to light having a wavelength of 570nm or more and the second color selecting device has a high reflection factor or a high absorption factor to light having a wavelength of 520nm or less. With this color selecting device, the range of color reproduction can be much more improved. This thus causes an increased degree of color purity of green light at the central and peripheral areas of the cathode ray tube. Moreover, with this arrangement, it becomes easy to conserve the characteristic of the color selecting devices and to facilitate the manufacturing operation.
摘要翻译：在投射型电视机中，第一和第二颜色选择装置位于通过阴极射线管的光学路径上，并且一系列投影透镜设置在阴极射线管的前面，而其中没有选色装置。第一颜色选择装置对波长为570nm以上的光具有高折射率，第二颜色选择装置对波长为520nm以下的光具有高反射率或高吸收系数。利用该选色装置，可以进一步提高色彩再现的范围。因此，阴极射线管的中央和外围区域的绿光的颜色纯度提高。此外，通过这种布置，变得容易地节省颜色选择装置的特性并且便于制造操作。

3. 发明授权

US5031033A Projection television apparatus 失效
标题翻译：投影电视机
公开(公告)号：US5031033A
公开(公告)日：1991-07-09
申请号：US480966
申请日：1990-02-16
申请人： Kazuo Tsukagoshi , Hiroshi Kawamura , Hiroshi Tetsuda
发明人： Kazuo Tsukagoshi , Hiroshi Kawamura , Hiroshi Tetsuda
IPC分类号： H01J29/89 , H04N9/31
CPC分类号： H04N9/31 , H01J29/894
摘要： In a projection television apparatus, a color selecting device is located on an optical light path passing through a cathode ray tube and a series of projection lenses disposed in front of the cathode ray tube. This color selecting device has a high reflection factor or a high absorption factor to light having a wavelength of at most 520 nm. With this color selecting device, the range of color reproduction can be much more improved, thus causing an increased degree of color purity of green at the central and peripheral areas of the cathode ray tube.
摘要翻译：在投影电视装置中，选色装置位于通过阴极射线管的光学路径和设置在阴极射线管前面的一系列投影透镜。该选色装置对波长至多为520nm的光具有高反射率或高吸收系数。利用这种选色装置，可以进一步提高色彩再现的范围，从而在阴极射线管的中央和外围区域产生绿色度的增加。

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