5 results about "Long wavelength" patented technology

A method of producing an optical film comprising at least two ionizing radiation-curing layers on a transparent substrate, the method comprising: Step 1 of irradiating a layer A, which comprises two or more kinds of polymerization initiators having different absorption ends at a longer wavelength side in wavelength range of sensitivity to which they are sensitive, with an ionizing radiation having a wavelength to which at least one kind (a) of the polymerization initiators is not substantially sensitive and at least one kind (b) of the polymerization initiators is sensitive; and Step 2 of spreading a coating solution for layer B comprising at least one polymerization initiator (c) over the layer A after Step A and then irradiating the coating solution for layer B with an ionizing radiation having a wavelength to which the polymerization initiators (a) and (c) are sensitive.

The invention relates to an anti-blue-ray system. The anti-blue-ray system is characterized in that an anti-blue-ray agent in the system has a pyrazoline compound structure as shown in a formula (I) which is described in the specification or/and a cinnamic acid compound structure as shown in a formula (II) which is described in the specification. The compound as shown in the formula (I) or/and thecompound as shown in the formula (II) can fully absorb short-wavelength blue light to protect the eye, and can also selectively absorb long-wavelength blue light so as to allow transmitted light to present particularly good visual perception. The anti-blue-ray system of the invention is applicable to products such as optical films, optical lenses, goggles, skin care products, lighting products, paints, adhesives and panels. The products have light-colored appearance and transmitted light presents particularly good visual perception.

A vertical cavity surface emitting laser (VCSEL) includes a semiconductor device having a pair of mirror portions, an active region, a tunnel junction, a pair of cladding layers and a substrate. Heat generated by the VCSEL dissipates through the cladding layers, which utilize an indium phosphide material. The VCSEL also includes selective etches that are used to aperture the active region to allow electric current to be injected into the active region.

The invention discloses a diphenyl sulfide ketoxime ester compound, a preparation method, a composition and application. A diphenyl sulfide ketoxime ester photoinitiator has the characteristics of high sensitivity and capability of absorbing long-wavelength light. On one hand, long-wavelength light can be absorbed to increase deep curing, and on the other hand, other short-wavelength ultraviolet light absorbers in the formula can be prevented from competing for incident light with the photoinitiator. The compound has initiation capability of long wavelength band, and can be used independently or matched with other photoinitiators for use.