An optical member driving device is provided. The device includes a fixed portion with an accommodation space for accommodating a lens device and a movable portion which includes a holding portion for holding an image sensor and is supported by a suspension wire at a position on a rear side of the lens device. The fixed portion has a case surrounding a periphery of the movable portion, and the movable portion has a coil substrate on which a coil is formed. The coil substrate has a main body portion and stopper portions projecting outward from a circumference of the main body portion, and the stopper portions are directly opposed to an inner surface of the case.

An eyepiece device for a surgical instrument, the eyepiece device including: an eyepiece frame; and at least one optical unit accommodated in the eyepiece frame, wherein the at least one optical unit comprises at least one first optical element and a second optical element connected with the at least one first optical element, wherein the second optical element is formed from a second material with abnormal dispersion and the first and the second optical elements together correct chromatic aberration; wherein the eyepiece frame comprises an expansion chamber for at least the second optical element, the expansion chamber forming an installation space for at least the second optical element in a radial direction.

A lens assembly having a paraxial path includes a carrier, a plurality of optical elements, a retaining element and a first bonding material. A closed structure is located adjacent to the second end. The closed structure is formed by at least one optical element of the optical elements and the inner annular surface, the at least one optical element is in physical contact with the inner annular surface, and an inside space is closed from an outside air by the closed structure. A first ventilation structure is located adjacent to the first end and connected between the closed structure and the outside air. The first ventilation structure is disposed on a side surface facing the optical elements of the retaining element and includes a contact surface and a first shrunk surface.

A disposable lens applied to electronic operation device for recognition includes a substrate, a lens and a fix adhesive. It is only necessary for the user to fix the disposable lens to the electronic operation device provided with an image-capturing unit and enable the image-capturing unit to align with a recognized unit to be recognized through the lens, such that the image of the recognized unit is expanded through the lens through optical properties. Thus, the image signal captured by the image-capturing unit is clearer, and then processed by the electronic operation device. Not only compactness with portability enabling the user to recognize the recognized unit immediately, but also the effect of low-priced material are provided due to simple structure of the disposable lens of the present invention. Thereby, relative advantages in volume, convenience and cost are all obtained.

An endoscope having an insertion portion to be inserted into an object to be observed, includes: a substantially tubular holder member mounted to the insertion portion and having an open front end portion including a shoulder surface surrounded by an axial wall; a lens barrel holding an objective lens system and received in the holder member; and a light-transmissive closure member fitted into a front opening defined by the axial wall, and fixed to the front opening by a bonding agent interposed between an outer circumferential surface of the closure member and an opposing inner circumferential surface of the open front end portion of the holder member, wherein a space axially adjoining the shoulder surface is defined between an outer circumferential surface of a front end portion of the lens barrel and an opposing inner circumferential surface of the holder member.

A blue glass infrared cutoff filter is disclosed that contains an aspheric epoxy replicated on a first surface of the infrared cutoff filter. The aspheric epoxy and blue glass infrared cutoff filter may be a component of a camera device that includes a lens barrel with one or more lenses disposed therein. The camera device may include a sensor for detecting light received by the camera device. The sensor may be connected to circuitry that dispatches the detection data generated by the sensor to a processor of a device into which the camera device has been incorporated.

A plastic lens assembly includes at least two plastic lens elements and at least one cementing glue coating. The plastic lens elements include a first plastic lens element and a second plastic lens element. The first plastic lens element has a first optical effective portion and a first peripheral portion, wherein the first peripheral portion surrounds the first optical effective portion. The second plastic lens element has a second optical effective portion and a second peripheral portion, wherein the second peripheral portion surrounds the second optical effective portion. The cementing glue coating is disposed between the first optical effective portion and the second optical effective portion, and for cementing the first plastic lens element and the second plastic lens element, wherein at least one optical gap is formed between the first optical effective portion and the second optical effective portion.

A camera module manufacturing apparatus includes: a chart unit configured to provide an image for optical-axis alignment to a substrate assembly including an image sensor; a substrate alignment unit disposed opposite to the chart unit, aligning the substrate assembly, and electrically connected to the image sensor; an optical axis alignment unit configured to allow an optical axis of a lens assembly including a lens and an actuator to be aligned with respect to an optical axis of the image sensor; and a camera module fixing unit positioned adjacent to the optical axis alignment unit, and fixing the lens assembly on the substrate assembly by applying an instantaneous curing adhesive, which is an inorganic material, to the lens assembly and the substrate assembly which are aligned.

A lens barrel includes a lens and a holding barrel configured to hold the lens. The holding barrel includes a holding unit configured to hold the lens, a plurality of adhesion portions at which the lens held by the holding unit is fixed to the holding barrel by an adhesive, and a plurality of caulking portions at which the lens held by the holding unit is fixed to the holding barrel by caulking the lens. Each of the plurality of adhesion portions and each of the plurality of caulking portions are spaced apart in a circumferential direction of the holding barrel, on a plane orthogonal to an optical axis of the lens.

An assembly for fixing an optical element in a manner that decouples the optical element from mechanical stresses and thermal strains while providing freedom to facilitate alignment of the optical element, and while also eliminating polymers that can cause contamination problems including a mount configured for attachment to an optical system; a plurality of flexible metal members, each flexible member having a first end affixed to or integrally extending from the mount, and a free end defining a bearing surface for supporting an optical element; and an inorganic adhesive joining a surface of the optical member to the bearing surface.