To provide portable information terminal equipment with which information displayed on a liquid crystal panel is observably extended with high resolution by reducing a generation amount of aberration to an extent that an observer can fully decipher the information.
The portable information terminal equipment has a coupling means 7 between a beam combiner 2 and a display part 1, a coupling means transfer means 8 for supporting the coupling means 7 so as to be transferable to the display part 1 and holding a state in which the coupling means is transferred by predetermined amount and an opening/closing support means 6 for supporting the beam combiner 2 openable/closable to the coupling means 7 and holding it at a predetermined angle of 45°<α<90°, the beam combiner 2 is positioned to the display part 1 so as to satisfy 1.5<z/p<5.0 and the beam combiner 2 has optical power for extending display information on the display surface 1a and reflecting it in the direction of observer's pupils, wherein α is an angle formed by virtual lines L1 and L2, p is length of a side of the display surface 1 in the direction of the virtual line L1 and z is paraxial distance between the center of the display surface 1a and the center of the beam combiner 2.
ISHII TETSUYA
NAKAMURA TORU
OSADA HIDEKI
OKAZAKI MASAKO
SEKIYAMA KENTARO
YOSHIDA TAKEHIRO
SHIMAMOTO TOKUYOSHI
| JP2000059853A | 2000-02-25 | |||
| JP2003333151A | 2003-11-21 | |||
| JP2003279883A | 2003-10-02 |
Masayuki Fujinaka