Abstract: An imaging lens system is provided. The imaging lens system includes a first lens having a concave object-side surface; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having an Abbe number greater than 20 and less than 40; and a seventh lens having refractive power, wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expressions: TTL/(ImgHT*2)<0.8, and 100°<FOV, where TTL is a distance from the object-side surface of the first lens to an imaging plane, ImgHT is a height of the imaging plane, and FOV is an angle of view of the imaging lens system.

Abstract: An optical imaging system includes a first lens group including a first lens and a second lens, a second lens group including a third lens, a fourth lens, and a fifth lens, and a third lens group including a sixth lens and a seventh lens. The first to seventh lenses are arranged in order from an object side, at least one of the first lens group to the third lens group is moved on an optical axis to change a distance between the first lens group to the third lens group, and the following conditional expression is satisfied: 0.2<BFL/(2*IMG HT)<2.0 where BFL is a distance on the optical axis from an image-side surface of the seventh lens to an imaging surface of an image sensor, and IMG HT is half a diagonal length of the imaging surface of the image sensor.

Abstract: The present disclosure relates to a heater in which a capacitive power control pattern is implemented, and an apparatus therefor. A heater comprising: first and second base materials that are separated in the vertical direction so as to have an internal space therebetween; a heater electrode pattern provided in the internal space; and a plurality of sheet-type heating elements provided in the internal space so as to be electrically connected to the heater electrode pattern, comprises a capacitance pattern for causing a change in capacitance in the region between the sheet-type heating elements according to a hovering movement above the second base material, wherein heater power to be supplied to the sheet-type heating elements through the heater electrode pattern can be controlled according to the hovering movement recognized in response to the change in capacitance.

Abstract: An exemplary embodiment of the present disclosure provides a pressure sensitive heating element including a front electrode and a foam including a conductive material attached to one or both surfaces of the front electrode, and a method for manufacturing the same.

Abstract: An imaging lens system includes a first lens; a second lens; a third lens having a concave object-side surface in a paraxial region thereof; a fourth lens; a fifth lens; a sixth lens; and a seventh lens, wherein the first to seventh lenses are sequentially disposed in ascending numerical order along an optical axis of the imaging lens system from an object side of the imaging lens system toward an imaging plane of the imaging lens system, and the conditional expression TTL/(2*ImgHT)<0.6 is satisfied, where TTL is a distance along the optical axis from an object-side surface of the first lens to the imaging plane, and 2*ImgHT is a diagonal length of an effective imaging area of the imaging plane.

Abstract: An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens disposed in order from an object side. In the imaging lens system, the first lens has positive refractive power and an object-side surface of the first lens is concave. A field of view of the imaging lens system is 100 degrees or more. In the imaging lens system, a distance TTL from the object-side surface of the first lens to an imaging plane and a height ImgH of the imaging plane satisfy TTL/ImgH<1.5.

Abstract: Provided is a serial-type planar heat-generating heater and a manufacturing method thereof. In particular, the present invention relates to a serial-type planar heat-generating heater, which is capable of maximizing the effect of heating by minimizing dead zones in which heat is not generated, achieving a maximum power output in a limited area, unlike in a parallel-type heater, and achieving high temperature uniformity in all of heat-generating surfaces of the planar heat-generating heater, is easy to design to control heating performance, and may be manufactured at low costs; and a manufacturing method thereof.

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 disposed in order from an object side. The first lens has refractive power having a sign different from a sign of refractive power of the second lens. One of an image-side surface of the fifth lens and an object-side surface of the sixth lens is convex, and the other is concave. One of the fourth to sixth lenses has both surfaces having a freeform surface shape.

Abstract: An optical imaging system includes a first lens having refractive power, a second lens having refractive power and having a convex object-side surface, a third lens having refractive power and having a convex object-side surface, a fourth lens having refractive power, a fifth lens having refractive power, and a sixth lens having negative refractive power. The optical imaging system satisfies 100°?FOV, and ?2.0<{IMGHT/(f*tan(FOV/2))?1}*100<2.0, where FOV is a field of view of the optical imaging system, IMGHT is half of a diagonal length of an imaging plane, and f is a focal length of the optical imaging system.

Abstract: An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens disposed in order from an object side. In the imaging lens system, the first lens has positive refractive power and an object-side surface of the first lens is concave. A field of view of the imaging lens system is 100 degrees or more. In the imaging lens system, a distance TTL from the object-side surface of the first lens to an imaging plane and a height ImgH of the imaging plane satisfy TTL/ImgH<1.5.

Abstract: An imaging lens system includes a first lens having refractive power, a second lens having refractive power, a third lens having refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power and having a convex object-side surface, a seventh lens having refractive power, and an eighth lens having refractive power, wherein a field of view (FOV) of the imaging lens system is 78-85 degrees.

Abstract: An optical imaging 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. The optical imaging system has a field of view of 120 degrees or greater, and a distortion aberration at a highest height of an imaging plane is +30% or greater or ?30% or lower.

Abstract: An optical imaging system includes a first lens group including a first lens and a second lens, a second lens group including a third lens, a fourth lens, and a fifth lens, and a third lens group including a sixth lens and a seventh lens. The first to seventh lenses are arranged in order from an object side, at least one of the first lens group to the third lens group is moved on an optical axis to change a distance between the first lens group to the third lens group, and the following conditional expression is satisfied: 0.2<BFL/(2*IMG HT)<2.0 where BFL is a distance on the optical axis from an image-side surface of the seventh lens to an imaging surface of an image sensor, and IMG HT is half a diagonal length of the imaging surface of the image sensor.

Abstract: An optical imaging system includes a first lens having a convex image-side surface, a second lens having a concave object-side surface, a third lens, a fourth lens, and a fifth lens disposed sequentially from an object side. The optical imaging system satisfies 4.8<f/IMG_HT<9.0, where f is a focal length of the optical imaging system, and IMG_HT is half a diagonal length of an imaging surface of an image sensor.

Abstract: Disclosed is a semiconductor memory device and a method of operating the same. The semiconductor memory device includes a memory cell array including a plurality of memory blocks, a peripheral circuit configured to perform an erase characteristic check operation and an erase operation on the plurality of memory blocks. The semiconductor memory device also includes a control circuit configured to control the peripheral circuit to perform the erase characteristic check operation and the erase operation, determine whether each of the plurality of memory blocks has a normal erase characteristic or an overerase characteristic according to a result of the erase characteristic check operation for each of the plurality of memory blocks, and set an erase voltage of the erase operation based on the determined erase characteristic according to the result of the erase characteristic check operation.

Abstract: The present disclosure provides a control apparatus for sensing overcurrent of a DC motor of a vehicle. The control apparatus may include: a microcomputer configured to convert a pulse width modulation (PWM) signal into a digital signal for controlling the DC motor; a half-bridge driver configured to control switching of the DC motor; a regulator configured to supply power; and a noise removal filter. The microcomputer is configured to measure a voltage at an input of the half-bridge driver, compare a difference between on-voltage and off-voltage during each of PWM period with a predetermined threshold, and stop the DC motor when the difference exceeds the predetermined threshold a predetermined number of times.

Abstract: Disclosed is a semiconductor memory device and a method of operating the same. The semiconductor memory device includes a memory cell array including a plurality of memory blocks, a peripheral circuit configured to perform an erase characteristic check operation and an erase operation on the plurality of memory blocks. The semiconductor memory device also includes a control logic configured to control the peripheral circuit to perform the erase characteristic check operation and the erase operation, determine whether each of the plurality of memory blocks has a normal erase characteristic or an overerase characteristic according to a result of the erase characteristic check operation for each of the plurality of memory blocks, and set an erase voltage of the erase operation.

Abstract: A power switch capable of preventing a reverse connection is provided. The power switch includes a switch that is configured to supply power of a battery to a load or block the power of the battery and a protector that is connected to an output terminal of the switch and blocks the power applied from the battery when the battery is reversely connected and a driver is configured to operate a driving of the switch and the protector.

Abstract: The present disclosure provides a control apparatus for sensing overcurrent of a DC motor of a vehicle. The control apparatus may include: a microcomputer configured to convert a pulse width modulation (PWM) signal into a digital signal for controlling the DC motor; a half-bridge driver configured to control switching of the DC motor; a regulator configured to supply power; and a noise removal filter. The microcomputer is configured to measure a voltage at an input of the half-bridge driver, compare a difference between on-voltage and off-voltage during each of PWM period with a predetermined threshold, and stop the DC motor when the difference exceeds the predetermined threshold a predetermined number of times.

Abstract: An image display apparatus and a method of displaying an image are disclosed. The image display apparatus includes: a display; and a controller configured to display on the display a channel list area including a plurality of channels and an index group area including a plurality of index groups indexing the plurality of channels by grouping the plurality of channels, to dynamically determine the plurality of index groups to be displayed on the index group area based on information regarding the plurality of channels, and to control the display to display the plurality of index groups on the index group area.