US Patent No: 4,515,439

Number of patents in Portfolio can not be more than 2000

Attachment of microscope objectives

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

The invention contemplates use of a bayonet mount for microscope objectives, instead of the customary threaded mounting of such objectives. The bayonet mount is characterized by the objective (1) having a centering cone (3) which engages and precisely centers in a conical opening (10) in the turret of the microscope. The structure not only permits rapid changing of the objective, but the thus-mounted objective always assumes the same accurately centered angular position with respect to the microscope housing. Each objective can therefore carry exposed coded indicia, containing technical data concerning the objective, and the coding may be read by a reading device which is fixed with respect to the microscope housing. The code which is read for the objective indexed into working position may be used for aperture control in the microscope.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CARL-ZEISS-STIFTUNGOBERKOCHEN588

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Esswein, Karlheinz Aalen, DE 3 92

Cited Art

Patent Info (Count) # Cites Year
 
QUANTOR CORPORATION (1)
4,266,855 Quick change lens system 9 1979

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CASCADE MICROTECH, INC. (72)
7,355,420 Membrane probing system 3 2002
7,761,986 Membrane probing method using improved contact 1 2003
7,368,925 Probe station with two platens 3 2004
7,492,172 Chuck for holding a device under test 4 2004
7,589,518 Wafer probe station having a skirting component 5 2005
7,554,322 Probe station 5 2005
7,330,041 Localizing a temperature of a device for testing 5 2005
7,368,927 Probe head having a membrane suspended probe 19 2005
7,352,168 Chuck for holding a device under test 9 2005
7,298,536 Fiber optic wafer probe 1 2005
7,420,381 Double sided probing structures 1 2005
7,348,787 Wafer probe station having environment control enclosure 3 2005
7,656,172 System for testing semiconductors 3 2006
7,449,899 Probe for high frequency signals 0 2006
7,619,419 Wideband active-passive differential signal probe 0 2006
7,403,025 Membrane probing system 2 2006
7,533,462 Method of constructing a membrane probe 0 2006
7,504,823 Thermal optical chuck 2 2006
7,304,488 Shielded probe for high-frequency testing of a device under test 4 2006
7,321,233 System for evaluating probing networks 7 2007
7,362,115 Chuck with integrated wafer support 14 2007
7,764,072 Differential signal probing system 1 2007
7,723,999 Calibration structures for differential signal probing 0 2007
7,403,028 Test structure and probe for differential signals 19 2007
7,443,186 On-wafer test structures for differential signals 2 2007
7,639,003 Guarded tub enclosure 2 2007
7,504,842 Probe holder for testing of a test device 0 2007
7,468,609 Switched suspended conductor and connection 4 2007
7,688,097 Wafer probe 1 2007
7,609,077 Differential signal probe with integral balun 0 2007
8,069,491 Probe testing structure 0 2007
7,498,828 Probe station with low inductance path 5 2007
7,436,170 Probe station having multiple enclosures 3 2007
7,492,147 Wafer probe station having a skirting component 3 2007
7,681,312 Membrane probing system 0 2007
7,541,821 Membrane probing system with local contact scrub 0 2007
7,453,276 Probe for combined signals 0 2007
7,518,387 Shielded probe for testing a device under test 1 2007
7,550,984 Probe station with low noise characteristics 3 2007
7,616,017 Probe station thermal chuck with shielding for capacitive current 0 2007
7,761,983 Method of assembling a wafer probe 1 2007
7,688,062 Probe station 0 2007
7,495,461 Wafer probe 0 2007
7,456,646 Wafer probe 1 2007
7,501,842 Shielded probe for testing a device under test 0 2007
7,498,829 Shielded probe for testing a device under test 1 2007
7,417,446 Probe for combined signals 1 2007
7,969,173 Chuck for holding a device under test 1 2007
7,518,358 Chuck for holding a device under test 11 2007
7,514,915 Chuck for holding a device under test 10 2007
7,501,810 Chuck for holding a device under test 10 2007
7,423,419 Chuck for holding a device under test 9 2007
7,626,379 Probe station having multiple enclosures 1 2007
7,489,149 Shielded probe for testing a device under test 1 2007
7,482,823 Shielded probe for testing a device under test 1 2007
7,436,194 Shielded probe with low contact resistance for testing a device under test 0 2007
7,595,632 Wafer probe station having environment control enclosure 5 2008
7,492,175 Membrane probing system 3 2008
7,688,091 Chuck with integrated wafer support 1 2008
7,514,944 Probe head having a membrane suspended probe 1 2008
7,750,652 Test structure and probe for differential signals 2 2008
8,013,623 Double sided probing structures 0 2008
7,876,114 Differential waveguide probe 0 2008
7,759,953 Active wafer probe 0 2008
7,888,957 Probing apparatus with impedance optimized interface 1 2008
7,898,281 Interface for testing semiconductors 0 2008
7,898,273 Probe for testing a device under test 0 2009
7,876,115 Chuck for holding a device under test 1 2009
7,893,704 Membrane probing structure with laterally scrubbing contacts 0 2009
8,319,503 Test apparatus for measuring a characteristic of a device under test 0 2009
8,410,806 Replaceable coupon for a probing apparatus 0 2009
7,940,069 System for testing semiconductors 1 2009
 
HAMILTON THORNE, INC. (2)
8,149,504 Optical indicator for microscopic laser beam manipulation 2 2009
8,422,128 Modular objective assembly 0 2009
 
LEICA MICROSYSTEMS (SCHWEIZ) AG (1)
5,608,573 Guide device and method for the backlash-free alignment of mutually relatively displaceable parts of an optical instrument 1 1994
 
LEICA MICROSYSTEMS CMS GMBH (1)
6,754,003 Scanning microscope and method for scanning a specimen 2 2002
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
5,668,660 Microscope with plural zoom lens assemblies in series 7 1994