GB244407A - Apparatus for testing by means of ultra-violet rays - Google Patents
Apparatus for testing by means of ultra-violet raysInfo
- Publication number
- GB244407A GB244407A GB17257/25A GB1725725A GB244407A GB 244407 A GB244407 A GB 244407A GB 17257/25 A GB17257/25 A GB 17257/25A GB 1725725 A GB1725725 A GB 1725725A GB 244407 A GB244407 A GB 244407A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ultra
- violet rays
- testing
- lamp
- compartment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6447—Fluorescence; Phosphorescence by visual observation
Landscapes
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
244,407. Quarzlampen-Ges. Dec. 10, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Examining materials by ultra-violet rays.-An apparatus for testing objects (e.g. distinguishing zinc white and lead white, different kinds of papers, fats, oils, etc.; identifying coloured substances, metals, and chemicals by their differing fluorescence ; examining pearls; carrying out bleaching experiments and effecting qualitative determinations by fluorescence ; or for criminological investigations) comprises a ventilated light-tight compartment a containing a lamp b (e.g. a quartz lamp) emitting ultra-violet rays, and an inspection compartment h separated by a partition g which is adapted itself or by a filter f to transmit ultraviolet rays only. The objects under examination are on a support m and are viewed through a slot which may be provided by movable curtains i. The partition g is preferably hinged so as to admit the whole light from the lamp when desired (e.g. for bleaching experiments) on to the objeert. For testing the transparency of different substances a mirror n may be arranged below the support m, or for photographic records a sensitized plates o is fitted. An additional vertical wall k of the compartment a may be fitted with a similar filter l, and hinged for direct horizontal action of the whole light or ultra-violet rays only, on to larger surfaces to be examined. To prevent any reflected image of the burner itself, glass filters which are matted, ribbed, frosted, or figured in a plastic condition may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE244407X | 1924-12-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB244407A true GB244407A (en) | 1926-09-29 |
Family
ID=5925793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17257/25A Expired GB244407A (en) | 1924-12-10 | 1925-07-04 | Apparatus for testing by means of ultra-violet rays |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB244407A (en) |
-
1925
- 1925-07-04 GB GB17257/25A patent/GB244407A/en not_active Expired
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