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50results about How to "Large target area" patented technology

Vascular access port with elongated septum

InactiveUS6213973B1Large target areaPreventing buckling of the septumSurgeryMedical devicesNeedle penetrationHydrostatic pressure
An elongated access port has a needle-impenetrable housing enclosing a fluid reservoir. The housing includes a base having a floor with an upstanding encircling sidewall and a cap having a top wall with a depending encircling skirt. The skirt of the cap receives the sidewall of the base. An access aperture extends through the top wall of the cap to communicate with the fluid reservoir. The access aperture is encircled by a continuous rim having an elongated shape in the plane of the access aperture. The rim of the access aperture may be elliptical, oval, polygonal, or parabolic-ended. An elastomeric, needle-penetrable, generally planar septum is disposed in the access aperture with the periphery of the septum in sealing engagement with the rim of the access aperture. Prior to installation, the septum has a periphery with a cross section in the plane of the septum that is geometrically proportional to and larger than the shape of the access aperture. Installation causes the periphery of the septum to be displaced inwardly by the rim of the access aperture in a direction parallel to the plane of the septum. In view of the relative shapes of the rim of the access aperture and the periphery of the septum, this produces substantially uniform hydrostatic pressure in regions of the installed septum that are subjected in use of the access port to needle penetrations. Opposite faces of the periphery of the septum are urged toward each other between the cap of the housing and the top of the sidewall of the base of the housing.
Owner:CR BARD INC

Urine dispersing urinal insert device

A disposable, deodorant and splash proof urine dispersing device for placement in a urinal including a framework made of scented plastic material with a horizontal segmented supporting base and a central raised housing. The supporting base includes a plurality of perforated flexible segments and a central bottom frame with a central opening aligned with an outlet or drain in the urinal. The opening is surrounded by the multiple segments such that the device can flex and adapt to urinals of different sizes and designs. The central raised housing includes a horizontal or inclined top member and an upstanding peripheral wall connecting the top member with the central bottom frame in the supporting base. The peripheral wall includes flush relief openings and tapered for easy unit stacking. The top member includes a frame with a plurality of spaced parallel rods having a unique configuration for dispersing urine flow with reduced back splashing toward the user of the urinal.
Owner:SUSKI MICHAEL R +1

High-resolution large-target surface machine vision lens

The invention relates to the technical field of a lens, in particular to a high-resolution large-target surface machine vision lens. The high-resolution large-target surface machine vision lens sequentially comprises a focusing group and a fixing group in the light incident direction, wherein the focusing group sequentially comprises a first lens, a first balsaming lens group, a diaphragm, a second balsaming lens group and a sixth lens. The focal length of the high-resolution large-target surface machine vision lens and the focal length of the focusing group meets the following relationship that the absolute value of f(focusing)/f is greater than or equal to 0.9 but smaller than or equal to 1.3; the focal length of the high-resolution large-target surface machine vision lens and the combined focal length of the second balsaming lens group and the sixth lens meet the following relationship that the absolute value of f(U2+G6)/f is greater than or equal to 0.8 but smaller than or equal to 1.2. The high-resolution large-target surface machine vision lens has the characteristics of high resolving power, large target surface, small size, low distortion and the like; the work distance can support 0.2m to the infinity, and is applicable to the lens with the focal length being 35mm; the high-resolution large-target surface machine vision lens is very suitable for being used as a machine vision lens.
Owner:DONGGUAN YUTONG OPTICAL TECH

Infrared confocal wide-angle lens

PendingCN110221401AGood infrared confocalReduce weight and costOptical elementsPhysicsWide-angle lens
The invention discloses an infrared confocal wide-angle lens. The infrared confocal wide-angle lens comprises in order from an object side to an image side: a front lens group, a diaphragm, a rear lens group, an optical filter, protection glass and a photosensitive chip. The focal power of the front lens group is negative, and the front lens group comprises: a first lens, wherein the focal power of the front lens is negative, one surface, facing the object side, of the front lens is a convex surface, and one surface, facing the image side, of the front lens is a concave surface; a second lens,wherein the focal power of the second lens is negative, the two surfaces of the second lens are both concave surfaces; and a third lens, wherein the focal power of the third lens is positive, and thetwo surfaces of the third lens are both convex surfaces. The focal power of the rear lens group is positive, and the rear lens group comprises: a fourth lens, wherein the focal power of the fourth lens is negative, one surface, facing the object side, of the fourth lens is a convex surface, and one surface, facing the image side, of the fourth lens is a concave surface; a fifth lens, wherein thefocal power of the fifth lens is positive, and the two surfaces of the fifth lens are both convex surfaces; a sixth lens, wherein the focal power of the sixth lens is positive, and the two surfaces ofthe sixth lens are both convex surfaces; a seventh lens, wherein the focal power of the seventh lens is negative, and the two surfaces of the seventh lens are both concave surfaces; and an eighth lens, wherein the focal power of the eighth lens is positive, and the two surfaces of the eighth lens are both convex surfaces. Each lens adopts a concave-convex combined structure, and can better achieve infrared confocal.
Owner:UNION OPTECH

Inner focusing type athermalization long wave infrared continuous zooming camera lens suitable for sealing device

ActiveCN107255860AAchieve athermalizationPixel heightOptical elementsCamera lensOptical axis
The invention discloses an inner focusing type athermalization long wave infrared continuous zooming camera lens suitable for a sealing device. A front fixing group G1 with focal power as positive, a zooming group G2 with focal power as negative, a diaphragm STO, a middle fixing group G3 with focal power as negative, a compensating group G4 with focal power as positive, a back fixing group G5 with focal power as negative and an image plane which are successively arranged from an object direction to an image direction, wherein the zooming group G2 and the compensating group G4 move back and forth along an optical axis to realize continuous zooming imaging of the camera lens. The inner focusing type athermalization long wave infrared continuous zooming camera lens is characterized by high pixel, a large target surface and a large focal length; a first lens of the back fixing group can move back and forth along the axis to compensate drift of the image plane along temperature. The inner focusing type athermalization long wave infrared continuous zooming camera lens suitable for the sealing device realizes athermalization of a camera lens and has a focusing effect, can be installed in photoelectric products, pods and the like and can realize sealing performance of the products without protection windows.
Owner:HEBEI HANGUANG HEAVY IND

Super-depth high-pixel infrared scanning imaging optical system

The embodiment of the invention discloses a super-depth high-pixel infrared scanning imaging optical system which is provided with a first lens, a second lens, a third lens, a fourth lens and a fifthlens which are arranged from an object surface to an image surface in turn along the optical axis. The first lens is a biconvex lens of which the focal power is positive. The second lens is a biconcave lens of which the focal power is negative. The object surface side of the third lens is a plane, the image surface side is a convex surface and the focal power is positive. The fourth lens is a biconcave lens of which the focal power is negative. The object surface side of the fifth lens is a concave surface, the image surface side is a convex surface and the focal power is negative. The opticalsystem meets 0.8<TTL/f<=1.2, wherein TTL is the distance between the vertex of the object surface side of the first lens of the optical system and an imaging surface, and f is the focal length of thewhole optical system. The optical system is mainly composed of five lenses so that the structure is simple; and different lenses are mutually combined and the focal power is reasonably allocated so that the optical system has great performance of low cost, low total length, super depth, high pixel, large target surface and great resolution, etc.
Owner:GUANGDONG HONGJING OPTOELECTRONICS TECHONLOGY CO LTD

Ultra-wide-angle fisheye lens

PendingCN113960768AGuaranteed optical axis consistencyImprove assembly efficiency and yieldMountingsPhysicsOphthalmology
The invention discloses an ultra-wide-angle fisheye lens, which comprises a lens barrel, an optical system arranged in the lens barrel, a first pressing ring, a second pressing ring and a sealing ring, and the optical system comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens which are sequentially arranged from an object side to an image side; the focal length of each lens is reasonably configured; the first pressing ring is connected with the lens barrel and abuts against the object side face of the first lens, the second pressing ring is connected with the lens barrel and abuts against the image side face of the tenth lens, the image side face of the first lens is further provided with a first annular platform, and the sealing ring is clamped between the first annular platform and the lens barrel. According to the lens, the consistency of optical axes can be ensured, the yield and the assembly efficiency in batch production can be improved, large light flux, large target surface and large field angle can be realized, stray light ghosting is reduced, chromatic aberration is corrected, the imaging quality is improved, the lens miniaturization is facilitated, the IP67 protection grade requirement is met, and the service life is long.
Owner:JIANGXI PHENIX OPTICS TECH CO LTD
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