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US 5,212,567 AGranted
Magnifying display apparatus
AssigneeNeitz Instruments Co., Ltd.
InventorsIsao Kawai, Toshiyuki Taguchi, Tetsuo Hayakawa, Nobuo Tokuda, Sanyo Nagayama
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AssigneeNeitz Instruments Co., Ltd.
InventorsIsao Kawai, Toshiyuki Taguchi, Tetsuo Hayakawa, Nobuo Tokuda, Sanyo Nagayama
Estimating the term…
A magnifying display apparatus for displaying enlarged images of characters or the like comprises a photoelectric-converting reading unit including a body and an optical system disposed in the body and having a light-path inversion prism, a magnifier lens system, an iris, an imaging device and illuminating lamp. The apparatus further comprises a controller connected to the reading unit and including a power supply circuit for the reading unit and also a control circuit for controlling the conversion of the output from the imaging device into an image output. The apparatus also comprises a display unit such as a television separably connected to the controller. A recess or a protrusion is formed on a front upper portion of the body at a position corresponding to the light-path inverting prism so as to be sensible by a user's finger, thus serving as an index of the portion of the original to be magnified and displayed. Operating means for operating iris and other mechanisms are disposed on lateral sides for easy manipulation of other finger or fingers of the user's hand gripping the reading unit body.
A magnifying display apparatus comprising:
An improved reading unit for a magnifying display apparatus for displaying an image from the reading unit, the reading unit having a prism for directing an image to a magnifier lens assembly, an iris for controlling the magnifier lens assembly aperture, and imaging means for converting the magnified image into an electrical signal to be used by the magnifying display apparatus, the improved reading unit comprising:
Dependencies are inferred from the claim text.