Lens cap
OwnerChung Jen Changinventor
Life of this patent
Estimating the term…
Abstract
A lens cap includes a ring detachably mounted onto a lens of an optical apparatus and a pair of linkage sets pivotally connected to the ring, wherein the two linkage sets are diametrically corresponding to each other and respectively connected to a covering structure. A sleeve is longitudinally and slidably sleeved on the ring and the covering structure is connected to sleeve. As a result, the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring. The covering structure and the sleeve are used as a lens cap when the covering structure closing the sleeve, and used as a lens hood when the covering structure is opened.
Claims11
A lens cap comprising a ring adapted to be detachably mounted onto a lens of an optical apparatus, a pair of opposite linkage sets pivotally connected to the ring, a covering structure connected to the linkage sets, a sleeve longitudinally and slidably placed on the ring and connected to the covering structure, wherein the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring, wherein the covering structure and the sleeve are used as a lens cap when the covering structure closes the sleeve, wherein the covering structure and the sleeve are used as a lens hood when the covering structure opens the sleeve, wherein the ring includes two opposite T-shaped grooves defined therein and two indentations defined in a side thereof opposite to the lens, wherein each of the indentations is in communication with a corresponding one of the T-shaped grooves.
A lens cap including a ring adapted for detachable attachment to a lens of an optical apparatus, a pair of opposite linkage sets pivotally connected to the ring, a covering structure connected to the linkage sets, a sleeve longitudinally and slidably placed on the ring and connected to the covering structure, wherein the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring, wherein the covering structure and the sleeve are used as a lens cap when the covering structure closes the sleeve, wherein the covering structure and the sleeve are used as a lens hood when the covering structure opens the sleeve, wherein the sleeve includes two opposite connecting plates secured on an inner periphery of a front end thereof, wherein each connecting plate includes a concave portion defined in an interior thereof, two rails formed on the inner periphery of the sleeve and each placed under a corresponding one of the two connecting plates, an annular lip inwardly extending from the inner periphery of a rear end of the sleeve, wherein the annular lip is selectively engaged to the two linkage sets to prevent the sleeve from excessive movement relative to the ring.
A lens cap including a ring adapted for detachable attachment to a lens of an optical apparatus, a pair of opposite linkage sets pivotally connected to the ring, a covering structure connected to the linkage sets, a sleeve longitudinally and slidably placed on the ring and connected to the covering structure, wherein the covering structure selectively opens/closes the sleeve when the sleeve is reciprocally moved relative to the ring, wherein the covering structure and the sleeve are used as a lens cap when the covering structure closes the sleeve, wherein the covering structure and the sleeve are used as a lens hood when the covering structure opens the sleeve, wherein the ring includes two opposite troughs defined therein a pair of ears formed on two opposite sides of each of the two troughs, and two resilient plates laterally extending from the ring and each aligning with a corresponding one of the two troughs.
Dependencies are inferred from the claim text.