Abstract: An information analysis system includes a communication terminal including first circuitry and an information analysis apparatus including second circuitry. The first circuitry acquires image information and voice information of a plurality of participants participating in an online event and transmits, to the information analysis apparatus, the image information and the voice information. The second circuitry performs analysis on a state of the plurality of participants based on the image information and the voice information transmitted from the communication terminal, and generates, based on the state of the plurality of participants, a state notification to be displayed on the communication terminal.

Abstract: An objective of the present invention is to provide a steel sheet having a high strength which can provide excellent appearance quality. The steel sheet has a chemical composition including, in mass %, C: more than 0.030% to 0.145%, Si: 0% to 0.500%, Mn: 0.50% to 2.50%, P: 0% to 0.100%, S: 0% to 0.020%, Al: 0% to 1.000% or less, N: 0% to 0.0100%, and the like, wherein a metal micro-structures consisting of 70 to 95% of ferrite in volume fraction and 5 to 30% of hard phases in volume fraction, and a value X1 obtained by dividing a standard deviation of average Mn concentrations in a rolling direction at ¼ sheet-thickness positions in a sheet thickness direction by an average Mn concentration at the ¼ sheet-thickness positions is 0.025 or less.

Abstract: Provided is a lightweight crawler unit which is capable of swiveling, suitable for a trolley for bad roads, and used for transportation in muddy places such as snowy roads, sandy ground, and fields, and disaster sites. A crawler includes a plurality of inner attachments provided inside thereof toward a frame to have a band-shape, overhang edges 70 protruding in a left and right direction of a rail provided on a circumference of the frame, and overhang edges 34 protruding in a left and right direction of each of the inner attachments, in a space K enclosed between the overhang edges 34 facing each other, the overhang edges 70 are inserted, the overhang edges 34, 70 are set in a positional relation in which they overlap with each other in an up and down direction, and the crawler circulates around pulleys, while the inner attachments are restricted along the rail.

Abstract: A light irradiation device includes a first illumination optical system to emit first light that causes a chemical reaction on an object; a second illumination optical system to emit second light having a wavelength different from a wavelength of the first light; a light emitter to emit the first light from the first illumination optical system and the second light from the second illumination optical system to the object in space shared by the first light and the second light, to irradiate an irradiation area on the object; an image-capturing optical system to capture an image of the space including the object; and circuitry configured to: detect a state of the irradiation area based on the image captured by the image-capturing optical system; and control at least one of the first light and the second light based on the detected state.

Abstract: An imaging lens includes a first lens group, a second lens group having positive refractive power, an aperture, and a third lens group having positive refractive power, sequentially disposed in that order from an object side to an image side. During a focusing from infinity to a short length, a combination of the second lens group, the aperture, and the third lens group as a single unit moves to the object side so as to reduce a distance to the first lens group. The second lens group includes four lenses of a second-first negative lens, a second-second positive lens, a second-third negative lens, and a second-fourth positive lens sequentially disposed in that order from the object side to the image side.

Abstract: An imaging lens system includes a first lens; a stop; a second lens group; and a third lens group, disposed in that order from an object side to an image side. A combination of the first lens group and the second lens group moves together as a single unit to the object side in focusing from infinity to a close distance to increase a distance between the second lens group and the third lens group. Conditional expression (1) below being satisfied: 0.40<dL31?L32/L3g<0.75??(1) where dL31?L32 denotes air spacing between the third-group-first negative lens and the third-group-second positive lens in the third lens group, and L3g denotes a distance along the optical axis between an object-side surface of the third-group-first negative lens and an image-side surface of the third-group-second positive lens.

Abstract: An imaging lens includes a first lens group, a second lens group having positive refractive power, an aperture, and a third lens group having positive refractive power, sequentially disposed in that order from an object side to an image side. During a focusing from infinity to a short length, a combination of the second lens group, the aperture, and the third lens group as a single unit moves to the object side so as to reduce a distance to the first lens group. The second lens group includes four lenses of a second-first negative lens, a second-second positive lens, a second-third negative lens, and a second-fourth positive lens sequentially disposed in that order from the object side to the image side.

Abstract: An imaging lens system includes a first lens; a stop; a second lens group; and a third lens group, disposed in that order from an object side to an image side. A combination of the first lens group and the second lens group moves together as a single unit to the object side in focusing from infinity to a close distance to increase a distance between the second lens group and the third lens group. Conditional expression (1) below being satisfied: 0.40<dL31-L32/L3g<0.75??(1) where dL31-L32 denotes air spacing between the third-group-first negative lens and the third-group-second positive lens in the third lens group, and L3g denotes a distance along the optical axis between an object-side surface of the third-group-first negative lens and an image-side surface of the third-group-second positive lens.

Abstract: An image-forming lens includes a stop, a first lens group and a second lens group. The first lens group includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in that order from the object side. The second lens group includes a negative subgroup and a positive subgroup arranged in that order from the object side. The first lens group is movable to the object side to increase a distance between the stop and the first lens group in a change in focusing from an object at infinity to an object close to the image-forming lens. Conditional expression (1) below being satisfied: 0.45<f1G/f<0.75 where f1G is a focal length of the first lens group, and f is a focal length of an entire system of the image-forming lens focused on the object at infinity.

Abstract: An scanning lens to scan a document image includes a lens and a retainer to retain the lens bonded and fixed to the retainer by an adhesive. Conditional formula (1), or both conditional formula (2) and conditional formula (3) below are satisfied: ? Vb = 0 , ( 1 ) 0 ? | ? large / ? small × ( ? i n ? Vp i - ? i n ? Vm i ) / ( ? i n ? Vp i + ? i n ? Vm i ) | < 3.5 ? ? ( i = 1 , 2 , … ? ? n ) , ? ? and ( 2 ) ? 0 < Vb / Va < 0.5 .

Abstract: An imaging lens includes a first lens group having a negative refractive power, an aperture stop, and a second lens group having a positive refractive power. The first lens group, the aperture stop, and the second lens group are sequentially disposed in a direction from an object side to an image side. The first lens group includes a negative first lens and a negative second lens. The second lens group includes a positive third lens, a positive fourth lens, a negative fifth lens, and a positive sixth lens. Conditional formula (1) below is satisfied: 0.16<DL3/TL<0.32??(1) where DL3 is a center thickness of the third lens, and TL is distance between an object-side surface of the first lens and an image-side surface of the sixth lens along the optical axis.

Abstract: An image-forming lens includes a stop, a first lens group and a second lens group. The first lens group includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged in that order from the object side. The second lens group includes a negative subgroup and a positive subgroup arranged in that order from the object side. The first lens group is movable to the object side to increase a distance between the stop and the first lens group in a change in focusing from an object at infinity to an object close to the image-forming lens. Conditional expression (1) below being satisfied: 0.45<f1G/f<0.75 where f1G is a focal length of the first lens group, and f is a focal length of an entire system of the image-forming lens focused on the object at infinity.

Abstract: An imaging lens includes a first lens group having a negative refractive power, an aperture stop, and a second lens group having a positive refractive power. The first lens group, the aperture stop, and the second lens group are sequentially disposed in a direction from an object side to an image side. The first lens group includes a negative first lens and a negative second lens. The second lens group includes a positive third lens, a positive fourth lens, a negative fifth lens, and a positive sixth lens. Conditional formula (1) below is satisfied: 0.16<DL3/TL<0.32??(1) where DL3 is a center thickness of the third lens, and TL is distance between an object-side surface of the first lens and an image-side surface of the sixth lens along the optical axis.

Abstract: An image reading lens includes a plurality of lenses, a first correcting mechanism that corrects a field curvature at a first correction part when temperature changes, and a second correcting mechanism that corrects an image-forming position when the temperature changes. The second correcting mechanism corrects the image-forming position at a part where a positional displacement of the image-forming position caused by a change of a lens interval is greater and a variation of the field curvature caused by the change of the lens interval is smaller than the first correction part.

Abstract: An scanning lens to scan a document image includes a lens and a retainer to retain the lens bonded and fixed to the retainer by an adhesive. Conditional formula (1), or both conditional formula (2) and conditional formula (3) below are satisfied: ? Vb = 0 , ( 1 ) 0 ? | ? large ? / ? ? small × ( ? i n ? Vp i - ? i n ? Vm i ) ? / ? { ? i n ? Vp i + ? i n ? Vm i ) | < 3.5 ? ? ( i = 1 , 2 , ? ? ? n ) , ? ? and ( 2 ) ? 0 < Vb ? / ? Va < 0.5 .

Abstract: There is provided a laminated plate including a first plate being curved in a first curved shape, a second plate having a second shape, the second shape being different from the first curved shape, and an inter mediate film bonding the first plate and the second plate; wherein a first corner edge of the laminated plate does not include a fold.

Abstract: An image-reading lens includes front-group and rear-group lens systems which are arranged on an object side and an image side, respectively. The front-group lens system includes equal to or less than 5 lenses which include at least one positive lens and at least one negative lens, and the rear-group lens system includes one negative lens. An angle of view of an entire system of the image-reading lens is equal to or more than 56°. The front-group and rear-group lens systems are structured such that with respect to a change in a distance between the front-group and rear-group lens systems, a change in a focal length of the entire system of the image-reading lens is small, and a change in an image plane is large, and by adjusting the distance between the front-group and rear-group lens systems, a required lens performance is obtained.

Abstract: An image reading lens includes a plurality of lenses, a first correcting mechanism that corrects a filed curvature at a first correction part when temperature changes, and a second correcting mechanism that corrects an image-forming position when the temperature changes. The second correcting mechanism corrects the image-forming position at a part where a positional displacement of the image-forming position caused by a change of a lens interval is greater and a variation of the field curvature caused by the change of the lens interval is smaller than the first correction part.

Abstract: An image reading lens includes a front lens group of five lenses including a positive lens and a negative lens, disposed on an object side and a rear lens group disposed on an image side, including a negative plastic lens. The image reading lens satisfies the following conditions: 0<?dnN/dt(N)??dnp/dt(P)<25 0.10<fa/f×d11/D<0.90 ?1.5<fb/f<?0.5 0.35<d11/D<0.70 where ?dnN/dt(N) and ?dnp/dt(P) are sums of 106-fold temperature coefficients of refractive indexes of the negative and positive lenses of the front lens group along a He—Ne line at a temperature of 40 to 60° C., respectively, fa, fb, and f are focal lengths of the front lens group, rear lens group, and image reading lens, respectively, d11 is an on-axis distance between the front and rear lens groups, and D is the total length of the image reading lens.

Abstract: An image reading lens includes a front lens group of five lenses including a positive lens and a negative lens, disposed on an object side and a rear lens group disposed on an image side, including a negative plastic lens. The image reading lens satisfies the following conditions: 0<?dnN/dt(N)??dnp/dt(P)<25 0.10<fa/f×d11/D<0.90 ?1.5<fb/f<?0.5 0.35<d11/D<0.70 where ?dnN/dt(N) and ?dnp/dt(P) are sums of 106-fold temperature coefficients of refractive indexes of the negative and positive lenses of the front lens group along a He—Ne line at a temperature of 40 to 60° C., respectively, fa, fb, and f are focal lengths of the front lens group, rear lens group, and image reading lens, respectively, d11 is an on-axis distance between the front and rear lens groups, and D is the total length of the image reading lens.