Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has a negative refractive power. The second lens has a negative refractive power. The third lens has a positive refractive power. The fourth lens has a positive refractive and an object-side surface that is concave in a paraxial region thereof. The fifth lens has a positive refractive power. The sixth lens has a negative refractive power. The first to sixth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system. Two lenses that are adjacent to each other among the first to sixth lenses are cemented to each other to form a cemented lens.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has a negative refractive power. The second lens has a negative refractive power. The third lens has a positive refractive power. The fourth lens has a positive refractive and an object-side surface that is concave in a paraxial region thereof. The fifth lens has a positive refractive power. The sixth lens has a negative refractive power. The first to sixth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system. Two lenses that are adjacent to each other among the first to sixth lenses are cemented to each other to form a cemented lens.

Abstract: The present invention relates to hydrogen-detectable composite particles through irreversible discoloration and a method for manufacturing same. More particularly, the present invention relates to composite particles having palladium oxide (PdO) particles adhered on the surfaces of zinc oxide (ZnO) nanoparticles and a method for manufacturing same. In addition, the present invention relates to applications of hydrogen detecting sensors, nanofibers, polymer films, paints, or the like using the composite particles.

Abstract: An imaging lens system includes a first lens, a second lens, a third lens having negative refractive power, a fourth lens, a fifth lens, and a sixth lens, disposed in order from an object side in a direction of an imaging plane, wherein one or more of the first to sixth lenses has a refractive index of 1.8 or greater, and has a refractive index temperature coefficient (10?6/° C.) of 3 or greater.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens has a negative refractive power. The second lens has a negative refractive power. The third lens has a positive refractive power. The fourth lens has a positive refractive and an object-side surface that is concave in a paraxial region thereof. The fifth lens has a positive refractive power. The sixth lens has a negative refractive power. The first to sixth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system. Two lenses that are adjacent to each other among the first to sixth lenses are cemented to each other to form a cemented lens.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens includes a negative refractive power, and the second lens includes a negative refractive power. The third lens includes a positive refractive power, and the fourth lens includes a positive refractive power, an object-side surface thereof being concave. The fifth lens includes a positive refractive power. The sixth lens includes a negative refractive power. The first to sixth lenses are sequentially disposed from an object side toward an imaging plane. One lens of the first to sixth lenses is cemented to a lens adjacent thereto.

Abstract: The present invention relates to hydrogen-detectable composite particles through irreversible discoloration and a method for manufacturing same. More particularly, the present invention relates to composite particles having palladium oxide (PdO) particles adhered on the surfaces of zinc oxide (ZnO) nanoparticles and a method for manufacturing same. In addition, the present invention relates to applications of hydrogen detecting sensors, nanofibers, polymer films, paints, or the like using the composite particles.

Abstract: An optical imaging system includes a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and cemented to the second lens; a fourth lens having refractive power; a fifth lens having refractive power and cemented to the fourth lens; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed in numerical order beginning with the first lens from an object side of the optical imaging system toward an imaging plane of the optical imaging system.

Abstract: An optical imaging system includes a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and cemented to the second lens; a fourth lens having refractive power; a fifth lens having refractive power and cemented to the fourth lens; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed in numerical order beginning with the first lens from an object side of the optical imaging system toward an imaging plane of the optical imaging system.

Abstract: An optical imaging system includes a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and cemented to the second lens; a fourth lens having refractive power; a fifth lens having refractive power and cemented to the fourth lens; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed in numerical order beginning with the first lens from an object side of the optical imaging system toward an imaging plane of the optical imaging system.

Abstract: An optical imaging system includes a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and cemented to the second lens; a fourth lens having refractive power; a fifth lens having refractive power and cemented to the fourth lens; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed in numerical order beginning with the first lens from an object side of the optical imaging system toward an imaging plane of the optical imaging system.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens includes a negative refractive power, and the second lens includes a negative refractive power. The third lens includes a positive refractive power, and the fourth lens includes a positive refractive power, an object-side surface thereof being concave. The fifth lens includes a positive refractive power. The sixth lens includes a negative refractive power. The first to sixth lenses are sequentially disposed from an object side toward an imaging plane. One lens of the first to sixth lenses is cemented to a lens adjacent thereto.

Abstract: A lens driving assembly includes a cam barrel having an opening in an outer circumferential surface thereof and that rotates around an optical axis, a front barrel accommodated in the cam barrel and that moves in an optical axis direction corresponding to rotation of the cam barrel, and a first lens group assembly that pivots between a home position that is deviated from the optical axis and an alignment position that is aligned with the optical axis, in which the first lens group assembly moves through the opening between the home position and the alignment position according to the rotation of the cam barrel and an elastic force.

Abstract: A lens driving assembly includes a cam barrel having an opening in an outer circumferential surface thereof and that rotates around an optical axis, a front barrel accommodated in the cam barrel and that moves in an optical axis direction corresponding to rotation of the cam barrel, and a first lens group assembly that pivots between a home position that is deviated from the optical axis and an alignment position that is aligned with the optical axis, in which the first lens group assembly moves through the opening between the home position and the alignment position according to the rotation of the cam barrel and an elastic force.

Abstract: An image stabilizing apparatus may include a fixing member disposed to a lens assembly having a through hole of which a center coincides with an optical axis of the lens assembly, a moving member disposed to move perpendicular to the optical axis with respect to the fixing member having a lens holder projecting in a direction of the optical axis to hold a compensating lens, a driving portion causing the moving member to move in a first direction perpendicular to the optical axis and in a second direction perpendicular to the optical axis and the first direction, four position determining portions formed in the first direction and the second direction on an outer circumferential surface of the lens holder of the moving member, and four stoppers projecting from an outer circumferential surface of the through hole of the fixing member to the moving member.

Abstract: An image stabilizing apparatus may include a fixing member disposed to a lens assembly having a through hole of which a center coincides with an optical axis of the lens assembly, a moving member disposed to move perpendicular to the optical axis with respect to the fixing member having a lens holder projecting in a direction of the optical axis to hold a compensating lens, a driving portion causing the moving member to move in a first direction perpendicular to the optical axis and in a second direction perpendicular to the optical axis and the first direction, four position determining portions formed in the first direction and the second direction on an outer circumferential surface of the lens holder of the moving member, and four stoppers projecting from an outer circumferential surface of the through hole of the fixing member to the moving member.

Abstract: An apparatus for driving a lens in a camera includes a lens module installed in a reciprocating and sliding manner in an inside of a lens barrel, a lead screw installed on the lens barrel, for being rotated by a driving motor, and a power transferring member assembled on the lens module and equipped with a tooth-shaped part that corresponds to a tooth shape of the lead screw. The lens module has a lens and a slider having a mounting unit for mounting the lens and receiving the power transferring member in a movable manner. The mounting unit has a through groove in which one end of the power transferring member is fit and supported and a slit groove in which the other end of the power transferring member is fit to be supported for being movable in a direction perpendicular to the movement direction of the slider.

Abstract: An apparatus for driving a lens in a camera includes a lens module installed in a reciprocating and sliding manner in an inside of a lens barrel, a lead screw installed on the lens barrel, for being rotated by a driving motor, and a power transferring member assembled on the lens module and equipped with a tooth-shaped part that corresponds to a tooth shape of the lead screw. The lens module has a lens and a slider having a mounting unit for mounting the lens and receiving the power transferring member in a movable manner. The mounting unit has a through groove in which one end of the power transferring member is fit and supported and a slit groove in which the other end of the power transferring member is fit to be supported for being movable in a direction perpendicular to the movement direction of the slider.