| 摘要 |
PROBLEM TO BE SOLVED: To enable pictorial communication through miniaturized equipment without adding any other device by adopting a diffraction optical element, which shortens the full length of lens, and composing a display part of a view finder system. SOLUTION: A camera part 20 is composed of the diffraction optical element and a CCD so that the number of lenses can be decreased and the full length of lens can be shortened. A display part 30 is provided with a line LED, expansion lens and rotary mirror. When the line LED at the display part 30 outputs a 1st image corresponding to one line, the expansion lens expands that 1st image, and the rotary mirror displays the expanded 1st image in the display area of display part 30. The rotary mirror changes just at an angle corresponding to one line of image every time so that the image passed through the expansion lens can be displayed through windows formed on the housing of main body onto the display area, namely, all the reflected lines can be scanned. |
