Optical device knob having variable resistance rotation
First Claim
Patent Images
1. An apparatus comprising:
- an optical device housing;
a post rotatably extending from the optical device housing;
a sleeve fixedly extending from the optical device housing and disposed about the post;
a knob connected to the post so as to be rotatable relative to the optical device housing;
a nut rotatably engaged with the sleeve and configured to rotate with the knob; and
an adjustment screw comprising a screw axis, wherein the adjustment screw is threadably engaged with the nut and engaged with the knob so as to rotate with the knob, wherein a rotation of the adjustment screw about the screw axis increases a frictional resistance between the nut and the sleeve.
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Abstract
An optical device housing has a post rotatably extending therefrom and a sleeve fixedly extending therefrom. The sleeve is disposed about the post and a knob is connected to the post. A nut rotatably engages with the sleeve and is configured to rotate with the knob. An adjustment screw is threadably engaged with the nut and engages with the knob so as to rotate with the knob. Rotation of the adjustment screw about a screw axis increases a frictional resistance between the nut and the sleeve.
14 Citations
20 Claims
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1. An apparatus comprising:
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an optical device housing; a post rotatably extending from the optical device housing; a sleeve fixedly extending from the optical device housing and disposed about the post; a knob connected to the post so as to be rotatable relative to the optical device housing; a nut rotatably engaged with the sleeve and configured to rotate with the knob; and an adjustment screw comprising a screw axis, wherein the adjustment screw is threadably engaged with the nut and engaged with the knob so as to rotate with the knob, wherein a rotation of the adjustment screw about the screw axis increases a frictional resistance between the nut and the sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus comprising:
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an optical device housing; a post rotatably extending from the optical device housing; a sleeve fixedly extending from the optical device housing and disposed about the post, wherein the post and sleeve are centered on a common axis; a knob connected to the post so as to be rotatable relative to the optical device housing; a nut engaged with the sleeve and configured to rotate with the knob; and an adjustment screw comprising a screw axis substantially parallel to the common axis, wherein the adjustment screw is configured to engage the nut along the screw axis, wherein a rotation in a first direction of the adjustment screw about the screw axis applies a force to the nut so as to increase a frictional resistance between mating threads on the nut and the sleeve. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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an optical device housing; a post rotatable about an axis extending from the optical device housing; a sleeve fixedly extending from the optical device housing and disposed about the post, wherein the post and sleeve are centered on an axis; a knob connected to the post so as to be rotatable relative to the optical device housing; a split nut rotatably engaged with the sleeve, the split nut comprising a first portion and a second portion; and an adjustment screw engaged with the split nut, wherein a rotation of the adjustment screw moves the split nut in at least one direction parallel to the axis, while not rotating the split nut. - View Dependent Claims (18, 19, 20)
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Specification