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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Miyatake; Yoshito
Address:
Moriguchi, JP
No. of patents:
3
Patents:












Patent Number Title Of Patent Date Issued
4473840 Optical focus adjustment means for projection television apparatus September 25, 1984
A projection television apparatus having three monochromatic cathode-ray tubes, a mirror block and a lens. The three cathode-ray tubes which display red, green and blue images, respectively are placed to form the letter "T" with their faceplates facing each other. The mirror block co
4453178 Projection television apparatus June 5, 1984
A projection television apparatus having a retrofocus type projection lens system which has a sufficiently long back focus, a small F number and a large distortion. The lens system is constructed with five components and five lenses and comprises a first lens which is a negative meniscus
4400722 Optical configuration for projection television apparatus August 23, 1983
A projection television apparatus which has three monochromatic cathode-ray tubes, two type of dichroic mirrors, and a lens. Red, green and blue images from the three tubes are combined into the color image by the two types of dichroic mirrors and the resulting image is enlarged and










 
 
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