A membrane removing instrument comprising a surgical blank having a surgical blank distal end and a surgical blank proximal end, the surgical blank configured for being at least partially disposed in a hypodermic tube wherein the surgical blank has dimensions configured for performing ophthalmic surgical procedures, and at least one micro-pick proximate to the surgical blank distal end, the micro-pick being configured to engage and incise an ophthalmic membrane and form a membrane flap.

A firearm having a laser induced friction surface. A method for forming the laser induced friction surface on the firearm may includes the steps of disposing the laser machine adjacent to a component of the firearm, adjusting the laser machine, then applying the laser beam of the laser machine onto a component surface.

A method for generating a structured surface on a substrate includes analyzing a substrate surface of the substrate and selecting, as a function of a condition of the substrate surface, method parameters including focus diameter, pulse peak power, pulse energy, point spacing, pulse length, pulse spacing and/or pulse sequence. The method further includes generating, by partial ablation and partial deposition via treatment with an intensive pulsed laser beam, surface structures having dimensions in the sub-micrometer range such that a multi-scale surface structure in the sub-micrometer and micrometer range adapted to intrinsically inhomogeneous properties of the substrate surface in the sub-micrometer range is generated. The substrate is an inhomogeneous substrate.

A laser light is used to modify the surface of the gallium semiconductor layer of an LED. The parameters of the laser are selected so that the laser interacts with the gallium semiconductor layer in a desired manner to yield the desired surface properties. For example, if a particular surface roughness is desired, the power of the laser light is selected so that the laser light penetrates the gallium semiconductor layer to a depth matching the desired surface roughness. The same principles can also be applied in a process that creates features such as trenches, pits, lenses, and mirrors on the gallium semiconductor layer of an LED. The laser projector is operated to irradiate a region of the gallium semiconductor layer to create a region of metallic gallium. The desired surface roughness and the different features can advantageously improve the beam collimation, light extraction, and other properties of the LED.

A needle for aspirating a sample from a sample source and injecting the sample into a liquid chromatography system, the needle including a needle body having a rough textured surface finish for at least a portion of the needle body, wherein the rough textured surface finish reduces a coefficient of friction of the needle body, is provided. Furthermore, an associated method is also provided.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

A method for forming an implantable electrode (100) includes exposing a conductive surface of the electrode (100) with a first application of an excimer laser (215) and creating a first surface texture on a conductive surface with a second application of the excimer laser. In one example, a low impedance implantable electrode includes a conductive surface and a coating disposed over the conductive surface. The coating may have a lower contact impedance with biological tissue than the conductive surface. At least a portion of the coating has an excimer laser textured surface.

A method of blackening a surface, comprises applying laser radiation to the surface of a target (10) to produce a periodic arrangement of structures on the surface of the target (10), wherein the laser radiation comprises pulsed laser radiation comprising a series of laser pulses and the power density of the pulses is in a range 2 GW/cm.sup.2 to 50 GW/cm.sup.2 or 0.1 TW/cm.sup.2 to 3 TW/cm.sup.2, and/or a pulse duration between 200 femtoseconds to 1000 picoseconds.

Methods and systems for the laser surface treatment on stainless steel alloys and nickel alloys may include a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the substrate along the predefined geometric pattern. The pulsed laser beam may have a laser power between 0.1 W and 100 W, single pulse fluence 1 mJ/mm.sup.2 and 1025 mJ/mm.sup.2 and a laser speed between 25.4 cm/s and 127 cm/s. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 0.1-1 m, an open pore distance of 0.05-1 m. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain open pore structures and promote adhesive bond performance.