摘要:
An auto focus lens module with a piezoelectric actuator having a piezoelectric actuator, a tangent thrust element, a sliding fixture, a metal member, a guiding fixture, and a lens barrel is revealed. By a thrust in the tangent direction generated from the tangent thrust element toward the outer edge of the lens barrel, a friction is generated between the lens barrel and the piezoelectric actuator. When the piezoelectric actuator is applied with a voltage, the lens barrel driven by the piezoelectric actuator moves along an optical axis for focusing with the auxiliary of the guiding fixture. Due to fewer elements, light weight and compact volume, the design is applied to miniature auto focus lens modules so as to achieve effects of fast movement, stable focusing and reduced tilting.
摘要:
A compact auto focus lens module with a piezoelectric actuator revealed includes a piezoelectric actuator, an elastic element, at least two guiding fixtures, and a lens barrel with an optical lens set therein. By elastic force of the elastic element, a friction is generated between the lens barrel and the piezoelectric actuator. While being applied with a voltage, the lens barrel driven by the movement of the piezoelectric actuator moves along the optical axis under the guidance of the guiding fixtures. Due to fewer elements, compact volume, and light weight, the design is applied to miniature auto focus lens modules so as to achieve effects of fast movement, stable focusing and reduced tilting.
摘要:
A stacked disk-shaped optical lens array, a stacked disk-shaped lens module array and a method of manufacturing the same are revealed. The stacked disk-shaped optical lens array is produced by stacked disk-shaped optical lens modules whose optical axis is aligned. The stacked disk-shaped lens module array is produced by a stacked disk-shaped optical lens array whose optical axis is aligned by an alignment fixture, stacked and assembled with required optical element arrays. In the stacked disk-shaped lens module array produced by this method, the lens optical axis is aligned precisely. Moreover, the manufacturing process is simplified and the cost is reduced.
摘要:
A lens holder of a stacked lens module and a manufacturing method thereof are revealed. A stacked lens submodule is used as a molded molding insert to be set into a mold cavity. The molding insert is aligned in the alignment fixture and the clamp of the mold by injection molding or press molding. After molding process, a lens module included the stacked lens submodule as well as the lens holder is formed. Thereby the manufacturing method of conventional lens assemblies or lens modules is improved. Moreover, the processes are simplified and the yield rate is increased. Furthermore, the molded lens module is packed into the lens more easily so that it is suitable to be applied to camera lenses, small lenses and mobile phone lenses.
摘要:
A rectangular stacked lens module and a manufacturing method thereof are disclosed. The rectangular stacked lens module is produced by cutting straight lines through a stacked lens module array. Firstly, it produces at least two lens arrays. Each lens array includes a plurality of optical lenses by multi-cavity glass molding and at least one alignment member disposed on the non-optical area of the lens array. Then at least the two lens arrays are assembled by the alignment members and are stacked with other optical elements so as to form a stacked lens module array. The optical axis of each optical lens is aligned easily with each other so as to meet requirements for optical precision. Moreover, the manufacturing processes are simplified and the purposes of mass-production and low cost are achieved.
摘要:
A rectangular optical glass lens and a manufacturing method thereof are disclosed. A rectangular glass blank is put between an upper mold and a lower mold of a multi-cavity mold and then being heated and pressured. The rectangular glass blank is molded into a lens sheet having a plurality of optical surfaces and the lens sheet is cut to form a plurality of rectangular optical glass lenses. The rectangular optical glass lens produced by such method includes two optical surfaces working as optical areas and a rectangle circumference on non-optical area surrounding the optical surface. The circumference is a rectangular part with four right angles on each corner while the right angles as well as the rectangular shape are formed by cutting of the lens sheet. Thus the manufacturing method of rectangular optical glass lenses are simplified and the produced lens is assembled with a lens module conveniently.
摘要:
A stacked optical glass lens array, a stacked lens module and a manufacturing method thereof are disclosed. The stacked optical glass lens array includes at least two optical glass lens arrays whose optical axis are aligned and then stacked with each other by cement glue in glue grooves. A stacked optical glass lens element can be singularized by cutting along with the alignment notches of stacked optical glass lens array. The stacked lens module is formed by a single stacked optical glass lens element and related optical element mounted in a lens holder. Thereby the optical axis of the lenses of the stacked lens module are aligned precisely, the manufacturing processes are simplified and the production cost is reduced.
摘要:
A convex-Fresnel LED lens and a LED assembly thereof are revealed. The lens is a Fresnel lens whose optical surface on a forward side thereof is a convex surface having draft with vertical shape so that the lens in the LED assembly concentrates light emitted from a LED chip to generate light whose peak intensity is an elliptic distribution pattern. Moreover, the lens and the LED assembly thereof satisfy certain conditions. Thereby, light from the LED chip is gathered by a single lens to form a preset specific distribution pattern and is satisfying requirement of the ratio of the luminous flux that is larger than 85%. The convex-Fresnel LED lens and a LED assembly thereof are applied to lights and flashlights in mobile phones or cameras.
摘要:
A rain sensor mounted on a windshield of a vehicle comprises: a housing having an opening, at least an emitter disposed in the housing and used for emitting light beams, a coupler, and an optical detector. The coupler connecting and covering the opening of the housing, comprises: at least a collimator receiving and collimating the light beams into collimated light beams; and at least a groove having a deflection surface to reflect the collimated light beams that passes through the collimator and is incident to the deflection surface at an incident angle θ to the windshield. The optical detector disposed in the housing is used for receiving the collimated light beams reflected by the windshield and generating electrical signals. The present invention characterized in that the incident angle θ satisfies the following condition: 1.27
摘要:
A single-piece optical imaging lens and an array thereof are revealed. The optical imaging lens includes a lens and an image sensor arranged at an image-side surface of the lens. The lens includes an object-side surface, an image-side surface, an optical area, and a non-optical area. The optical imaging lens satisfies the following conditions: BFL/TTL=0.55˜0.81, OH/OD=1.0˜3.6. TTL is total length from the object-side surface of the lens on the optical axis to the image sensor. BFL is back focal length of the imaging lens. OD is the distance between an object on the optical axis and the object-side surface of the lens. OH is the largest height of an object vertical to the optical axis of OD. The single-piece optical imaging lens array is used to produce a plurality of single-piece optical imaging lenses by cutting.