Patent US4403839A successfully refreshed from Google Patents.
US4403839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comparator macroscope or microscope
Assignee: Ernst Leitz Wetzlar GmbH
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Filing: 1981-02-20
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Granted: 1983-09-13
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Expires: 2001-02-20
Abstract
Abstract Disclosed is a comparator viewing device for simultaneously viewing objects to be compared, either macroscopically or microscopically, comprising a comparator bridge member, a pair of individual optical viewing members attached to the bridge member, each of the viewing members comprising at least one objective, a binocular tube mounted on the bridge member, the binocular tube including two eyepieces and a beam splitter interposed in a beam path between the objects to be viewed and the eyepieces, and a marking device comprising a light-emitting surface for producing a luminous spot on the objects to be viewed, this marking device being located in the beam path on the side of the beam splitter opposite the objects to be viewed, whereby the same beam path serves for viewing of the objects and also for producing the luminous spot on the objects to be viewed, and the luminous spot is always produced on the location of the object which appears in the center of the field of vision. The viewing device optionally includes a phototube mounted on the bridge member for simultaneously photographing the objects to be viewed.
Inventors
- 👤 Artur Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:18
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
349 words
A comparator viewing device for simultaneously viewing objects to be compared, either macroscopically or microscopically, comprising: a comparator bridge member arranged therein at each end thereof one of two similar optical systems, each of said optical systems including first and second optical elements and a refracting prism located between said first and second optical elements, each of said optical system providing a partial beam path and wherein the partial beam paths of said optical systems are brought together by means of said refracting prisms in said optical systems, said comparator bridge further comprising a first beam splitter prism provided between the second elements of said two optical systems for uniting the two partial beam paths in congruently superposed fashion on its splitter surface to provide a combined beam path; a pair of individual optical viewing members attached to the two ends of said bridge member, each of said viewing members comprising at least one objective lens; a binocular tube mounted on said bridge member in the combined beam path of said first beam splitter prism, said binocular tube carrying two occular lenses simultaneously lying in said combined beam path and being mounted on occular supports; and a marking device comprising a light-emitting surface for producing a luminous spot on the objects to be viewed, said marking device being located in the combined beam path on the side of said first beam splitter opposite the objects to be viewed, whereby the same beam path serves for viewing of the objects and also for producing the luminous spot on the objects to be viewed, and the luminous spot is always produced on the location of the object which appears in the center of the field of vision, wherein said marking device is mounted on one of said occular supports and comprises a mounting member adapted for detachable mounting on said occular support and an upper member for supporting said light-emitting surface, said upper member being pivotably attached to said mounting member so that the marking device is selectively movable into and out of the beam path of the respective occular lens.
Claim 2
Dependent Claim
349 words
A comparator viewing device for simultaneously viewing objects to be compared, either macroscopically or microscopically, comprising: a comparator bridge member arranged therein at each end thereof one of two similar optical systems, each of said optical systems including first and second optical elements and a refracting prism located between said first and second optical elements, each of said optical system providing a partial beam path and wherein the partial beam paths of said optical systems are brought together by means of said refracting prisms in said optical systems, said comparator bridge further comprising a first beam splitter prism provided between the second elements of said two optical systems for uniting the two partial beam paths in congruently superposed fashion on its splitter surface to provide a combined beam path; a pair of individual optical viewing members attached to the two ends of said bridge member, each of said viewing members comprising at least one objective lens; a binocular tube mounted on said bridge member in the combined beam path of said first beam splitter prism, said binocular tube carrying two occular lenses simultaneously lying in said combined beam path and being mounted on occular supports; and a marking device comprising a light-emitting surface for producing a luminous spot on the objects to be viewed, said marking device being located in the combined beam path on the side of said first beam splitter opposite the objects to be viewed, whereby the same beam path serves for viewing of the objects and also for producing the luminous spot on the objects to be viewed, and the luminous spot is always produced on the location of the object which appears in the center of the field of vision, wherein said marking device is mounted on one of said occular supports and comprises a mounting member adapted for detachable mounting on said occular support and an upper member for supporting said light-emitting surface, said upper member being pivotably attached to said mounting member so that the marking device is selectively movable into and out of the beam path of the respective occular lens.
Claim 3
Dependent Claim
329 words
A comparator viewing device for simultaneously viewing objects to be compared, either macroscopically or microscopically, comprising: a comparator bridge member having arranged therein at each end thereof one of two similar optical systems, each of said optical systems including first and second optical elements and a refracting prism located between said first and second optical elements, each of said optical systems providing a partial beam path and wherein the partial beam paths of said optical systems are brought together by means of said refracting prisms in said optical systems, said comparator bridge further comprising a first beam splitter prism provided between the second elements of said two optical systems for uniting the two partial beam paths in congruently superposed fashion on its splitter surface to provide a combined beam path; a pair of individual optical viewing members attached to the two ends of said bridge member, each of said viewing members comprising at least one objective lens; a binocular tube mounted on said bridge member in the combined beam path of said first beam splitter prism, said binocular tube carrying two occular lenses simultaneously lying in said combined beam path; a marking device comprising a light-emitting surface for producing a luminous spot on the objects to be viewed, said marking device being located in the combined beam path on the side of said first beam splitter opposite the objects to be viewed, whereby the same beam path serves for viewing of the objects and also for producing the luminous spot on the objects to be viewed, and the luminous spot is always produced on the location of the object which apears in the center of the field of vision; a phototube mounted on said binocular tube in such a way as to mount a camera device in said combined beam path from said first beam splitter prism; and wherein said marking device is mounted on said phototube so that said light-emitting surface is exposed to said combined beam path.
Claim 4
Dependent Claim
329 words
A comparator viewing device for simultaneously viewing objects to be compared, either macroscopically or microscopically, comprising: a comparator bridge member having arranged therein at each end thereof one of two similar optical systems, each of said optical systems including first and second optical elements and a refracting prism located between said first and second optical elements, each of said optical systems providing a partial beam path and wherein the partial beam paths of said optical systems are brought together by means of said refracting prisms in said optical systems, said comparator bridge further comprising a first beam splitter prism provided between the second elements of said two optical systems for uniting the two partial beam paths in congruently superposed fashion on its splitter surface to provide a combined beam path; a pair of individual optical viewing members attached to the two ends of said bridge member, each of said viewing members comprising at least one objective lens; a binocular tube mounted on said bridge member in the combined beam path of said first beam splitter prism, said binocular tube carrying two occular lenses simultaneously lying in said combined beam path; a marking device comprising a light-emitting surface for producing a luminous spot on the objects to be viewed, said marking device being located in the combined beam path on the side of said first beam splitter opposite the objects to be viewed, whereby the same beam path serves for viewing of the objects and also for producing the luminous spot on the objects to be viewed, and the luminous spot is always produced on the location of the object which apears in the center of the field of vision; a phototube mounted on said binocular tube in such a way as to mount a camera device in said combined beam path from said first beam splitter prism; and wherein said marking device is mounted on said phototube so that said light-emitting surface is exposed to said combined beam path.
Claim 5
Dependent Claim
39 words
A comparator viewing device as defined in claim 1, further comprising a phototube mounted on said binocular tube in such a way as to mount a camera device in said combined beam path from said first beam splitter prism.
Claim 6
Dependent Claim
31 words
A comparator viewing device as defined in claim 1 or 2, wherein said marking device comprises a positive lens and a diaphragm arranged in the focal plane of said positive lens.
Claim 7
Dependent Claim
28 words
A comparator viewing device as defined in claim 1 or 2, wherein at least one of said occular lenses of said binocular tube comprises an interchangeable graticule member.
Claim 8
Dependent Claim
23 words
A comparator viewing device as defined in claim 2, wherein said marking device comprises a beam deflecting element displaceably arranged in said phototube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |