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US 11,294,167 B2Granted
Loupe and loupe unit
AssigneeKonica Minolta, Inc.
InventorIsao Ishimoda
Life of this patent
Estimating the term…
Abstract
A loupe is bonded to a glasses-type holder to be worn around a head of a user. The loupe includes: a tube framework inserted into a hole or a cutout formed in the glasses-type holder and bonded with a UV adhesive; and a lens held in the tube framework. At least a portion at which the UV adhesive is applied in the tube framework is made of a resin not resistant to acetone and is covered with a paint resistant to acetone.
Claims6
A magnifying loupe bonded to a glasses-type holder to be worn around a head of a user, the magnifying loupe comprising:
- a tube framework that is detachably bonded to a transparent plate of the glasses-type holder and that comprises:
- a spinning cylinder;
- and
- a static fixture that comprises:
- a first cylinder that holds at least two lenses relatively movable in an optical axis direction to vary a distance between the lenses and vary magnification;
- and
- a second cylinder that:
- holds an eye lens,
- has a smaller diameter than the first cylinder and is connected to the first cylinder, and
- is inserted into a hole or a cutout formed in the transparent plate and bonded to the transparent plate with a UV adhesive, wherein
- the UV adhesive is soluble in acetone,
- the second cylinder is made of resin that is soluble in acetone,
- an outer face of the second cylinder is covered with paint that is insoluble in acetone.
10 more elements
A manufacturing method of a loupe unit, comprising:
- preparing a loupe that comprises:
- a lens;
- and
- a tube framework that holds the lens and that is made of resin soluble in acetone, wherein at least part of an outer face of the tube framework is covered with paint insoluble in acetone;
- preparing a glasses-type holder that comprises a transparent plate having a hole or a cutout;
- and
- after adjusting an angle of the tube framework inserted into the hole or the cutoff, bonding the tube framework to the transparent plate with UV adhesive soluble in acetone, wherein
- the manufacturing method further comprises:
- when an angle adjustment is inadequate, removing the loupe from the transparent plate;
- cleaning the outer surface of the loupe with acetone to remove the UV adhesive;
- and
- after readjusting the angle of the tube framework inserted into the hole or the cutoff, bonding the tube framework to the transparent plate with the UV adhesive soluble in acetone.
9 more elements
Dependencies are inferred from the claim text.