Provided are an ultraviolet absorbing agent including a compound represented by Formula (1), in which the ultraviolet absorbing agent has a maximum absorption wavelength in a wavelength range of 350 to 390 nm in an ethyl acetate solution, and a value obtained by dividing an absorbance at a wavelength of 430 nm by an absorbance at the maximum absorption wavelength is 0.01 or less, a resin composition, a cured substance, and an optical member which include the ultraviolet absorbing agent, a method of producing an ultraviolet absorbing agent, and a compound. In Formula (1), X.sup.1 and X.sup.2 each independently represent a cyano group or the like, R.sup.1 and R.sup.2 each independently represent an alkyl group or the like, and R.sup.3 and R.sup.4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, or an aryloxy group.

##STR00001##

Provided are an ultraviolet absorbing agent including a compound represented by Formula (1), in which the ultraviolet absorbing agent has a maximum absorption wavelength in a wavelength range of 350 to 390 nm in an ethyl acetate solution, and a value obtained by dividing an absorbance at a wavelength of 430 nm by an absorbance at the maximum absorption wavelength is 0.01 or less, a resin composition, a cured substance, and an optical member which include the ultraviolet absorbing agent, a method of producing an ultraviolet absorbing agent, and a compound. In Formula (1), X.sup.1 and X.sup.2 each independently represent a cyano group or the like, R.sup.1 and R.sup.2 each independently represent an alkyl group or the like, and R.sup.3 and R.sup.4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, or an aryloxy group.

##STR00001##

An imaging optical system lens assembly includes six lens elements, which is, in order from an object side to an image side along an optical path, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power, the object-side surface of the first lens element is concave in a paraxial region thereof, the image-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has positive refractive power, the object-side surface of the second lens element is convex in a paraxial region thereof, the image-side surface of the second lens element is concave in a paraxial region thereof. The fifth lens element has positive refractive power.

An optical imaging lens includes a first, a second, a third, a fourth, a fifth, a sixth, a seventh and an eighth lens elements from an object side to an image side in order along an optical axis. The optical imaging lens satisfies: EFL/(G45+T5)≤8.500, wherein EFL is an effective focal length of the optical imaging lens, G45 is an air gap from the fourth lens element to the fifth lens element along the optical axis, and T5 is a thickness of the fifth lens element along the optical axis.

Provided are an organometallic complex coating solution and a near-infrared absorption film, including an organometallic complex, a phosphorus-containing dispersant, and optical resin. The present disclosure greatly reduces the temperature and time of the film-forming process by formulating components of the organometallic complex coating solution.

Provided are an organometallic complex coating solution and a near-infrared absorption film, including an organometallic complex, a phosphorus-containing dispersant, and optical resin. The present disclosure greatly reduces the temperature and time of the film-forming process by formulating components of the organometallic complex coating solution.

A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

A daylight redirecting window film having a layered structure with a total thickness of less than one millimeter and having a first optically transmissive film, a second optically transmissive film approximately coextensive with the first optically transmissive film, an intermediate layer of a relatively soft optically transmissive material disposed between the first and second optically transmissive films, a parallel array of linear three-dimensional structures formed in a space between the first and second optically transmissive films, a layer of an optically transmissive adhesive coating a surface of the first optically transmissive film, and a two-dimensional pattern of light scattering surface microstructures formed in an outer surface of the second optically transmissive film. The parallel array of linear three-dimensional structures defines a parallel array of linear channels, and each of the linear three-dimensional structures has a total internal reflection wall extending transversely through a portion of the layered structure.

A daylight redirecting window film having a layered structure with a total thickness of less than one millimeter and having a first optically transmissive film, a second optically transmissive film approximately coextensive with the first optically transmissive film, an intermediate layer of a relatively soft optically transmissive material disposed between the first and second optically transmissive films, a parallel array of linear three-dimensional structures formed in a space between the first and second optically transmissive films, a layer of an optically transmissive adhesive coating a surface of the first optically transmissive film, and a two-dimensional pattern of light scattering surface microstructures formed in an outer surface of the second optically transmissive film. The parallel array of linear three-dimensional structures defines a parallel array of linear channels, and each of the linear three-dimensional structures has a total internal reflection wall extending transversely through a portion of the layered structure.

A polarizable compact is provided with high productivity, which makes a polarizing sheet resistant to the occurrence of color unevenness and voids and also resistant to the occurrence of variations in polarization degree accompanying thermal shrinkage and the like of a protective layer (protective film). A polarizable compact is used for glasses, and a method of manufacturing the same. An injection-molded portion made of a transparent plastic material is thermally bonded to the concave surface side of a polarizing sheet having a predetermined curvature radius. The polarizing sheet has a polarizer layer held between first and second protective layers respectively serving as a convex surface side and a concave surface side. Both the first and second protective layers are formed from transparent films by a casting method with retardation (Re)≤50 nm. The transparent films for the first and second protective layers are respectively formed from an acylcellulose-based film and a polyamide-based film.