摘要:
An optical measuring system is provided with a measuring machine that has at least one measuring element for determining locations and at least one measuring element for determining angles. At least one common reference surface is provided for the location-determining measuring element and the angle-determining measuring element.
摘要:
The invention relates to an objective, particularly a projection objective for use in semiconductor lithography, comprising optical elements such as lenses (16) and mirrors (11a). According to the invention, at least a portion of the optical elements (16, 11a) is provided with a reflective surface outside of the optically active area serving as the reference surface (12) for a the optical element inside the objective (8).
摘要:
In the case of a mounting apparatus, an optical element having an inner mount and an outer mount, in particular a lens in a projection lens system for semiconductor lithography, the inner mount is connected to the outer mount via three circumferentially distributed articulations. Manipulators, whereby said inner mount is displaceable, act on the articulations. The articulations comprise a mechanism which transforms a radial movement into an axial movement.
摘要:
In the case of a mounting apparatus, an optical element having an inner mount and an outer mount, in particular a lens in a projection lens system for semiconductor lithography, the inner mount is connected to the outer mount via three circumferentially distributed solid-state articulations. Manipulators, by means of which the inner mount can be displaced, act on the solid-state articulations. The solid-state articulations are T-shaped in cross section with a T-bar and a T-support. Attachment points between the inner mount and the outer mount are located in each case in the region of the outer ends of the T-bar. The manipulators act on the T-support in each case.
摘要:
A vehicle camera and wide-angle objective lens system are disclosed wherein the wide-angle objective lens has image aberrations or errors that do not deteriorate the detection of obstructions or obstacles in its field of view.
摘要:
An exterior vehicle mirror assembly is disclosed having a holding arm connection with reduced wind turbulence comprising a holding arm having a first end and a second end for attachment to the vehicle. A mirror head is carried by the holding arm having a mirror element. A connection device is disposed between the mirror head to the holding arm having opposing convex sides including a convex mounting side and a convex wind encountering side. The convex mounting side providing an enlarged mounting surface disposed toward the mirror head. The connection device has a contoured cradle for engaging the enlarged mounting surface of the convex mounting side of the holding arm with the opposing convex side of the holding arm being aerodynamically exposed to the on coming wind. A fastener tightly fastens the holding arm and connection device together so that a reliable connection with reduced turbulence is provided for the mirror head and the holding arm.
摘要:
A vehicle camera and wide-angle objective lens system are disclosed wherein the wide-angle objective lens has image aberrations or errors that do not deteriorate the detection of obstructions or obstacles in its field of view.
摘要:
An external mirror for a vehicle is disclosed which includes a housing (1) which can be affixed to the vehicle, a mirror pane (2) and an adjustment member (3) onto which the mirror pane (2) is secured in a reference position. The mirror pane is rotatable in reference to said reference position, whereby the adjustment member (3) in at least a first and second mounting position can be affixed to the housing (1)
摘要:
The invention relates to a chain lock comprising two lock parts which can be displaced in the longitudinal direction of the lock in order to open and close said lock. Each lock part comprises a journal (6) which is arranged on one end thereof and a pocket (7) which is arranged on the other end thereof in order to receive a journal (6) of the respective other lock part. Each journal (6) is fitted with at least one retaining web (8) which can be displaced in a retaining groove (11) of the pocket (7) of the respective other lock part. The journal (6) and the pocket (7) have a cross-section which continuously widens or expands in the longitudinal direction of the lock in order to maintain the small amount of required displacement path in the opening and closing of the lock.
摘要:
A microphone includes a microphone capsule biased with a polarization voltage from a winding on a transformer. The polarization voltage is controlled by a regulation circuit that may have an analog regulation circuit and a digital regulation circuit. A controller adjusts the polarization voltage that varies the sensitivity of the microphone.