Speed variation mechanism
AssigneeDelta Electronics, Inc.
InventorsSean Chang, Shih-Shiun Chang
Life of this patent
Estimating the term…
Abstract
A speed variation mechanism includes a base, a first sliding member, a second sliding member and a fixing device. The base has a first surface. The first sliding member is able to slide on the first surface and has a second surface. The second sliding member is able to slide on the second surface and has a third surface. The third surface is in contact with a driven member to drive an optical device. The fixing device can selectively fix the first sliding member to the base or the second sliding member. When the second sliding member is pushed, the speed variation mechanism of the invention can provide different moving speeds for the driven member to drive the optical device by fixing the first sliding member to the base or the second sliding member.
Claims20
A speed variation mechanism for driving an optical device, comprising:
- a base having a first surface;
- a first sliding member being able to slide on the first surface and having a second surface positioned at a first angle relative to the first surface;
- a second sliding member being able to slide on the second surface and having a third surface positioned at a second angle relative to the first surface, the third surface being in contact with a driven member to drive the optical device;
- and
- a fixing device for selectively fixing the first sliding member to one of the base and the second sliding member.
A speed variation mechanism for driving an optical device, comprising:
- a base having a first surface;
- a first sliding member being able to slide on the first surface and having a second surface positioned at a first angle relative to the first surface;
- a second sliding member being able to slide on the second surface and having a third surface positioned at a second angle, different from the first angle, relative to the first surface, the third surface being in contact with a driven member to drive the optical device;
- and
- a fixing device for selectively fixing the first sliding member to one of the base and the second sliding member.
A speed variation mechanism for driving an optical device, comprising:
- a base having a first surface;
- a first sliding member being able to slide on the first surface and having a second surface positioned at a first angle relative to the first surface;
- a second sliding member being able to slide on the second surface and in contact with a driven member to drive the optical device;
- and
- a fixing device for selectively fixing the first sliding member to one of the base and the second sliding member.
Dependencies are inferred from the claim text.