Gas-pocket molding forms tilted glass optical windows with low surface roughness and minimal back reflection for wafer-level devices.
Low-temperature pre-sintering creates a silica-rich dental ceramic block with 0.5-3 GPa hardness, enabling dry machining before final densification.
Controlled heating and bending keep high-index curved glass within 1% thickness deviation, reducing chromatic aberration in AR light guides.
A detachable glass flow passage mold stabilizes molten glass flow to improve 3D shape accuracy, yield, and productivity in optical component molding.
A molten tin counter-die shapes 3D glass while preserving surface quality and reducing stress from solid mold contact and temperature gradients.
Atomic layer deposited alumina-yttria coatings protect graphite glass-shaping molds from oxidation, pitting, and delamination.
Sequential reduced-area pressing zones lower molten glass flow resistance and peak force, enabling thin complex glass articles with simpler equipment.
Directly compression molding glass melt into a curved preform cuts waste and cost while controlled cooling and annealing prevent breakage and devitrification.
Carbon soot formed on mold and plunger surfaces cuts friction and pressing force, enabling thin 3D glass articles with fewer cracks.
Inert gas fed through a side-surface mold groove replaces oxygen during heating, enabling precise press molding of optical and side surfaces.
A motorized handling unit uses a drive shaft, slide, and stored mold heights to adjust glass mold closing elements faster and more safely.
Mold heat-transfer gaps, spinning-auger flow control, and multi-stamp pre-shaping help form thin, wide glass parts with consistent thickness.
This case shows non-contact laser heating and feedback temperature control for forming optical glass with consistent thickness and shape.
Controlled heating and non-contact support shape molten glass with precise thickness and shape while helping prevent devitrification.
Directly molding glass melt into a 3D cavity shortens processing while controlled cooling protects integrity and transparency.
Preheating the mold cavity maintains low viscosity, enabling uniform spreading of molten glass into complex thin-walled geometries.
A polyporous refractory forming mold uses micro-cavities to generate negative pressure for shaping molten glass.
Pre-nucleating glass before molding controls crystallization volume changes, maintaining shape integrity and reducing distortion during ceramming.
Varying surface roughness from center to periphery in mold closing regions ensures even filling, synchronous demoulding, and reduced cavity error.
Optical glass composition stabilizes against crystallization through precise oxide ratios, resolving high refractive index trade-offs.
Niobium-based amorphous alloy releasing layers prevent die scratches and glass defects by resisting abrasive super-hard powder friction.