Abstract:
An optical filter includes a substrate, an adhesion layer formed on the substrate, and a matching composite layer formed on the adhesion layer and including a plurality of first refraction layers, a plurality of second refraction layers, and a plurality of third refraction layers. A quantity of the second refraction layers is less than that of the first refraction layers, and is less than that of the third refraction layers. A refractive index of the first refraction layer is greater than that of the adhesion layer. A refractive index of the second refraction layer is greater than that of the first refraction layer, and is less than that of the third refraction layer. Two of the second refraction layers sandwich one of the first refraction layers therebetween, and are sandwiched between two of the third refraction layers, so as to be jointly defined as a bidirectional incremental module.
Abstract:
Provided is an ultraviolet-absorbing resin composition, including 35 to 45 wt % of a fluorocarbon resin, 5 to 25 wt % of an isocyanate curing agent, 1 to 5 wt % of an ultraviolet absorbent, and a residual solvent accounting for the balance, based on the total weight of the ultraviolet-absorbing resin composition. Provided is also an ultraviolet-absorbing resin, an ultraviolet-absorbing structure including the same, and the method for preparing the same. The present disclosure obtains an ultraviolet-absorbing resin with a specific composition from a specific resin composition formula, and the ultraviolet-absorbing resin efficiently absorbs ultraviolet and has excellent visible light transmittance, as well as high stability.
Abstract:
The present disclosure is related to a filter, which includes a near infrared light filtering substrate, having a near infrared light absorbing dye; an absorbing layer, having a near infrared light absorbing dye and an ultraviolet light absorbing dye, and formed on one surface of the near infrared light filtering substrate; a first multi-layer film, formed on the absorbing layer; and a second multi-layer film, formed on the other surface of the near infrared light filtering substrate.
Abstract:
Apparatus for producing energy pulses of a sufficiently short duration that only a restricted zone of the target image is illuminated at any given instant. A gating apparatus is adapted to admit to a receiving apparatus a sequence of images from the target subject, each of which images corresponds to a different zone of the target subject. The receiving apparatus is coupled to a recording device that presents to the viewer a threedimensional image of the target subject and that stores the image data for subsequent presentation. Several variations of the three-dimensional data acquisition and display devices are disclosed.
Abstract:
Provided is a filter lens and a method for preparing the filter lens. The filter lens includes a copper complex, wherein the copper complex is formed from a copper compound providing copper ions, phosphoric acid represented by formula 1 herein, and at least one phosphorus-containing compound represented by formulas 2 to 4 herein, wherein the OD value of the filter lens for the incident light wavelength of 930 nm to 950 nm is greater than 4. The present disclosure enables a filter lens to have the function of filtering out near-infrared instead of using a traditional filter component and thus the size of the assembled optical lens module is reduced. The filter lens can further filter out light having other specific wavelengths, and thereby the number of lenses in the assembled optical lens module is reduced.
Abstract:
The present disclosure relates to an infrared band pass filter, which comprises a first multilayer film. The first multilayer film including a plurality of Si:NH layers and a low refraction index layer. The plurality of low refraction index layers are stacked with Si:NH layers alternatively; wherein the difference between the refraction index of Si:NH layer and the refraction index of the low refraction index layer is greater than 0.5. The infrared band pass filter has a pass band in a wavelength range of 800 nm and 1100 nm, and when the incident angle is changed from 0 degrees to 30 degrees, the center wavelength of the pass band is shifted less than 12 nm, and the infrared band pass filter of the present disclosure can be used to enhance the 3D image resolution when applied to a 3D imaging system.
Abstract:
The present disclosure relates to an infrared band pass filter, which comprises a first multilayer film. The first multilayer film including a plurality of Si:NH layers and a low refraction index layer. The plurality of low refraction index layers are stacked with Si:NH layers alternatively; wherein the difference between the refraction index of Si:NH layer and the refraction index of the low refraction index layer is greater than 0.5. The infrared band pass filter has a pass band in a wavelength range of 800 nm and 1100 nm, and when the incident angle is changed from 0 degrees to 30 degrees, the center wavelength of the pass band is shifted less than 12 nm, and the infrared band pass filter of the present disclosure can be used to enhance the 3D image resolution when applied to a 3D imaging system.
Abstract:
An absorption type near-infrared filter comprising a first multilayer film, a second multilayer film, and an absorption film comprising an infrared absorbing dye with a weight percentage between 1% and 3%, wherein in the infrared band, the difference between the wavelength with the transmittance at 80% of the absorption film and the wavelength with the reflectivity at 80% of the first multilayer film ranges between 130 nm and 145 nm; the difference between the wavelength with the transmittance at 50% of the absorption film and the wavelength with the reflectivity at 50% of the first multilayer film ranges between 75 nm and 90 nm; the difference between the wavelength with the transmittance at 20% of the absorption film and the wavelength with the reflectivity at 20% of the first multilayer film ranges between 25 nm and 45 nm.
Abstract:
A high power Faraday isolator or rotator includes, at least one Faraday optical element, and a magnetic structure capable of generating a magnetic field within the at least one Faraday optical element. The at least one Faraday optical element comprises a Potassium Terbium Fluoride (KTF) crystal grown or manufactured along the [113] crystal orientation and which is oriented such that the light propagating through the Faraday isolator is within 2 degrees of the [113] crystal orientation.