Spectacle type display apparatus

Claim 2

A glasses type display apparatus for seeing a virtual image obtained through left and right lens systems (2L, 2R) which are respectively provided corresponding to left and right display portions, said glasses type display apparatus comprising: a moving mechanism (19L, 19R; 42L, 42R) for moving symmetrically said left and right lens systems corresponding to a distance between eyeballs; left and right slide mechanisms (13L, 13R, 14L, 14R) for sliding said left and right lens systems along a segment line (Fo) through a center point (o) of said the left and right lens systems and the focus points (F) of said left and right lens systems on the main point axis (α); and a link mechanism (36L, 36R, 38L, 38R, 39L, 39R) linking to said moving mechanism of said left and right lens systems and for opening or closing symmetrically so that said left and right slide systems respectively keep a relationship along said segment line: wherein said the left and the right display portions (1L, 1R) are respectively attached to said left and right slide mechanisms (29L, 29R; 41L, 41R) to move said the left and right display portions (1L, 1R) respectively on said segment line (Fo), so that said positions of virtual images to be seen are coincided with each other, regardless of said distance between eyeballs, even when changing a distance between said left and right display portions and said left and right lens systems with visibility control.

Claim 3

A glasses type display apparatus of claim 2, further comprises distance between eyeballs scale means (55, 56) for indicating said distance between eyeballs, corresponding to said symmetric motion of said left and right lens systems (2L, 2R).

Claim 4

A glasses type display apparatus of claim 1 or 2, further comprising virtual image display portion scale means (63) for indicating a display position of said virtual image, corresponding to said motion of the left and right display portions (1L, 1R), on a segment line (Fo) through a center point (o) of said left and right lens systems and a focus (F) said left and right lens systems.

Claim 5

A glasses type display apparatus of any one of claims 1 to 4, further comprises head fitting means (72-76) for holding rotatably the image display portion located at said left and right display portions (1L, 1R) and said left and right lens systems (2L, 2R), centered on an eyeball looking at the side of the user, and for holding movably said image display portion forward or backward.

Claim 6

A glasses type display apparatus of claim 5, wherein said head fitting means (72-78) holds said image display portion and has means for springing up said display portion in the upper direction with respect to the eyes of the user.

Claim 7

A glasses type display apparatus of claim 5 or 6, wherein said head fitting member (72-78) comprises a weight (76-78) at the rear of the head, corresponding to the weight of said image display portion (1L,1R).

Claim 8

A glasses type display apparatus of claim 1 or 2, further comprising: a head fitting member (72-78) for wearing said left and right display portions (1L, 1R) and said left and right lens systems (2L, 2R) above the eyes of the user; a beam splitter (3) being located in front of eyes of said user with a predetermined slant with respect to optical axes of said left and right lens systems (1L, 1R); and distinction means (18L, 18R) being located in front of said beam splitter.

Claim 9

A glasses type display apparatus for seeing a virtual image obtained through left and right lens systems (2L, 2R) which are respectively provided corresponding to left and right display portions (1L, lR), said glasses type display apparatus comprising: a head fitting member (72-78) for wearing said left and right display portions and said left and right lens systems, above the eyes of the user; a beam splitter (3) being located in front of eyes of said user, with a predetermined slant with respect to optical axes of said left and right lens systems; and shutter means (17, 18) for shutting out only the outside in display area of said virtual image, said shutter means being located in front of and/or behind of said beam splitter.

Claim 10

A glasses type display apparatus of claim 8 or 9, wherein said head fitting member (72-78) has a brim (77), and said beam splitter (3) being located at a position below said brim and separated from a face of said user by predetermined distance.

Claim 11

A glasses type display apparatus of any one of claims 8 to 10, wherein a bottom connected to an enclosure is covered the lower portion of said beam splitter (3).

Claim 12

A glasses type display apparatus of claim 11, wherein said bottom face connected to said enclosure is coincided with a direction of eyes of said user.