Abstract An image display apparatus reduces the possibility of occurrence of minor discomforts such as headaches, eyestrain, fatigue and the like in users. A symbol indicating distance such as 1m, 3m, or ∞ is displayed on an outer periphery of a virtual image adjusting knob. When the user aligns a mark on the virtual image position adjusting knob (18) with a position corresponding to one of the predetermined symbols, the virtual image is set so as to be displayed at a position corresponding to the symbol. Consequently, the user can more easily recognize the displayed position of the virtual image so that the generation of a minor discomfort due to long term use which is more than necessary of the image display apparatus is substantially reduced.
An image display apparatus comprising: image displaying means for displaying an image; optical means for optically generating a virtual image of the image displayed through said image displaying means; adjusting means for adjusting a position of said virtual image; and position displaying means for displaying a position of said virtual image.
Claim 2
Dependent Claim
32 words
An image display apparatus according to claim 1, wherein said position displaying means displays the position of said virtual image as a magnitude of an image screen corresponding to said virtual image.
Claim 3
Dependent Claim
43 words
An image display apparatus according to claim 1 or claim 2, comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 4
Dependent Claim
27 words
An image display apparatus according to claim 1, claim 2 or claim 3, comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 5
Dependent Claim
33 words
An image display apparatus according to any one of the preceding claims, comprising controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 6
Dependent Claim
38 words
An image display apparatus according to any one of the preceding claims, which comprises controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 7
Dependent Claim
25 words
An image display apparatus according to any one of claims 1 to 6, wherein said position displaying means is installed adjacent to said adjusting means.
Claim 8
Dependent Claim
25 words
An image display apparatus according to any one of claims 1 to 6, wherein said position displaying means is installed on to said adjusting means.
Claim 9
Dependent Claim
36 words
An image display apparatus according to any one of the preceding claims, wherein said position displaying means displays the position of said virtual image as a magnitude of an image screen corresponding to said virtual image.
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