The present invention modifies the Goldmann-Weeker's dark adaptometer so that all testing may be done automatically and analysis of the data may be completed in a rapid manner and further varied. The automated dark adaptometer is composed of the standard Goldmann-Weeker's dark adactometer having the traditional Ganzfeld bowl attached thereon. A computer acting through a computer interface is connected to a stepper motor and shaft encoder. The stepper motor is connected to the light control knob ...

This invention relates to improvement of solar collectors of the type which gather thermal or sensible heat. Efficiency is increased through the present invention by selecting a fluid which (a) is optically dense (b) is water based (c) absorbs energy over a broad wavelength range (d) does not enter into photochemical or thermal reaction (e) has a lowered melting point (f) is not viscous (g) is neither toxic nor flammable. This results in extremely high thermal collection efficiency.

The present invention relates to a tire having a portion thereof such as a sidewall component that glows-in-the-dark due to the presence of a phosphorescent layer thereon. The present invention also relates to a tire having, and to a process for incorporating, a phosphorescent decal on the sidewall component. Very small amounts of phosphorescent material are used, resulting in a low cost safety tire.

A new method of removing photoresist residues and sidewall deposits is described. Semiconductor device structures are provided in and on a semiconductor substrate. The semiconductor device structures are covered with an insulating layer. A metal layer is deposited overlying the insulating layer. The metal layer is covered with a layer of photoresist. The photoresist layer is exposed to actinic light and developed and patterned to form the desired photoresist mask. The metal layer is etched away ...

A method of adjusting a portion of a dark frame in accordance with compensation values related to dark reference pixels of a picture frame to obtain an adjusted dark frame portion, and then subtracting the adjusted dark frame portion from a corresponding picture frame portion. The technique may be used to improve the accuracy of image sensors such as those used in digital cameras or video conferencing cameras by compensating for dark current noise. The technique may be applied to both CMOS image...

A dark green colored glass comprising 100 parts by weight of a matrix component of soda lime silicate glass, and, as coloring components, from 0.5 to 2.0 parts by weight of total iron calculated as Fe.sub.2 O.sub.3, more than 1.0 to 3.0 parts by weight of total titanium calculated as TiO.sub.2, from 0.003 to 0.02 part by weight of CoO, from 0 to 0.0008 part by weight of Se, from 0 to 0.05 part by weight of total chromium calculated as Cr.sub.2 O.sub.3, from 0 to 0.5 part by weight of total vanad...

A dark gray colored glass comprising 100 parts by weight of a soda lime silicate glass as a matrix component and coloring components consisting essentially of from 0.8 to 1.5 parts by weight of total iron calculated as Fe.sub.2 O.sub.3, from 0.1 to 0.3 part by weight of FeO, from 0 to 1.0 part by weight of TiO.sub.2, from 0.0005 to 0.015 part by weight of Se, from 0.02 to 0.05 part by weight of CoO and from 0.002 to 0.05 part by weight of Cr.sub.2 O.sub.3.

A dark shading correction circuit, used for a television camera or a video camera, is provided for canceling a dark shading signal component contained in a video signal outputted from an image pickup device (6), thereby effecting the dark shading correction on the video signal. In synchronization with a vertical synchronizing signal, the image pickup device (6) outputs a video signal containing an optical black reference signal outputted in response to each horizontal scanning signal, while a ti...

A system and method for performing a reshaping of a cornea of an eye for improved vision is presented. The system comprises a first appartus for determining dark adapted pupil size of an eye and a second apparatus for reshaping a cornea of the eye in an area approximately equal to the dark adapted pupil size as determined by the first apparatus. The method of the present invention involves dilating the pupil of an eye to its dark adapted size, determining the diameter of the dilated pupil, and a...

A low dark current metal-semiconductor-metal photodetector has an active region for receiving photons and generating charge carriers in the form of holes and electrons in response to the photons and an isolation region for allowing electrical coupling to occur without increasing the dark current. The photodetector is a III-V ternary semiconductor having its active region defined by a via through a dielectric layer. A pair of electrodes has contact portions extending into contact with the active ...