Abstract: Glass bodies and methods of making glass bodies and more particularly glass bodies, for example, microlenses and arrays of microlenses and methods of making the same are described. Cordierite powder is vitrified to form a glass body or glass bodies for instance a microlens or microlenses.

Abstract: A fused silica glass article having greater resistance to damage induced by exposure to laser radiation such as laser induced wavefront distortion at deep ultraviolet (DUV) wavelengths, and behaviors such as fluence dependent transmission, which are related to intrinsic defects in the glass. The improved resistance to laser damage may be achieved in some embodiments by loading the glass article with molecular hydrogen (H2) at temperatures of about 400° C. or less, or 350° C. or less. The combined OH and deuteroxyl (OD) concentration may be less than 10 ppm by weight. In other embodiments, the improved resistance may be achieved by providing the glass with 10 to 60 ppm deuteroxyl (OD) species by weight. In still other embodiments, improved resistance to such laser damage may be achieved by both loading the glass article with molecular hydrogen at temperatures of about 350° C. or less and providing the glass with less than 10 ppm combined OH and OD, or 10 to 60 ppm OD by weight.

Abstract: Glass bodies and methods of making glass bodies and more particularly glass bodies, for example, microlenses and arrays of microlenses and methods of making the same are described. Cordierite powder is vitrified to form a glass body or glass bodies for instance a microlens or microlenses.

Abstract: A method of finding defects in sealing material formed as a frame line on a glass plate includes irradiating the frame line of sealing material. A temperature of the irradiated sealing material is measured and a change of the temperature caused by a nonuniformity in sealing material is detected. Another aspect features a method of hermetically sealing a thin film device between glass plates. Sealing material is dispensed on a cover glass plate in the form of a frame line cell. The sealing material is pre-sintered onto the cover glass plate and cooled. A laser beam is moved around the frame line on the sealing material. A temperature of the sealing material contacted with the laser beam is measured. A change in the temperature (?T) caused by a nonuniformity in the sealing material is measured. Further aspects include a feedback process, infrared imaging and use of delta temperature data to increase sensitivity of temperature measurement data.