Interpupillary distance adjustment mechanism for optical device
AssigneeAsia Optical Co., Inc.
InventorsShih-Yu Pai, Hsiang-Yi Lai
Life of this patent
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Abstract
An interpupillary distance adjustment mechanism for an optical device includes a slide rail (1) mounted on a middle support of the optical device, two slide blocks (2) mounted on respective lens barrels of the optical device, and a blocking member (4, 4′). The two slide blocks are slidably movable relative to the slide rail toward or away from each other to change the distance between the two lens barrels of the optical device. The blocking member is manually operable to provide an acting force between the slide block and the slide rail, and thus changing the friction force therebetween during sliding movement of the slide block. In this way, undesired sliding movement of the slide block relative to the slide rail can be prevented.
Claims22
An interpupillary distance adjustment mechanism adapted to use with an optical device that comprises two lens barrels spaced from each other by a distance and a middle support arranged between the lens barrels, the interpupillary distance adjustment mechanism comprising:
- a slide rail adapted to mount on the middle support of the optical device;
- two slide blocks adapted to mount on the lens barrels of the optical device, respectively, the two slide blocks being slidably coupled to the slide rail to selectively move toward and away from each other to change the distance between the two lens barrels of the optical device;
- and
- a blocking member manually operable to apply an acting force between the slide rail and each slide block to change resistance against the movement of the slide block with respect to the slide rail.
An interpupillary distance adjustment mechanism adapted to use with an optical device comprising first and second lens barrels spaced from each other by a distance, the interpupillary distance adjustment mechanism comprising:
- a slide rail adapted to mount on the first lens barrel of the optical device;
- a slide block adapted to mount on the second lens barrel of the optical device, the slide block being slidable along the slide rail to change the distance between the lens barrels of the optical device;
- and
- a blocking member manually operable to apply an acting force between the slide rail and the slide block to change resistance against the movement of the slide block with respect to the slide rail.
Dependencies are inferred from the claim text.