File:Beckman model db n009w2543.tiff

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Summary

Photograph of Beckman Model DB Spectrophotometer (

)

Photographer

Unknown

Title

Photograph of Beckman Model DB Spectrophotometer

Description

Photograph of Beckman Model DB Spectrophotometer

The Beckman DB was a double beam model, made by Beckman Instruments, which allowed for comparison between two light paths: a reference and the sample being measured.

Published without a copyright notice in Beckman Instruments Feedback newsletter, April 1960 (box 44, folder 34)

Date

1960

Collection

Science History Institute

	Location	315 Chestnut Street, Philadelphia, Pennsylvania, 19106
	Coordinates	39° 56′ 56.04″ N, 75° 08′ 47.4″ W
	Established	1982
	Website	http://www.sciencehistory.org/
	Authority file	: Q5090408 VIAF: 4412163159960301640007 ISNI: 0000000121917991 LCCN: no2021104345 BNF: 16931028s NKC: ko2010557072 WorldCat

Accession number

Beckman Historical Collection

Credit line

Science History Institute.

Notes

Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative.

Source

https://digital.sciencehistory.org/works/8g84mm32q

Permission
(Reusing this file)

This file was provided to Wikimedia Commons by the Science History Institute as part of a cooperation project.

English ∙ 日本語 ∙ +/−

This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:29, 6 August 2019		3,276 × 2,668, 2 pages (25.07 MB)	Mary Mark Ockerbloom	== {{int:filedesc}} == {{Photograph \|photographer ={{unknown}} \|title = Photograph of Beckman Model DB Spectrophotometer \|description = Photograph of Beckman Model DB Spectrophotometer The Beckman DB was a double beam model, made by Beckman Instruments, which allowed for comparison between two light paths: a reference and the sample being measured. Published without a copyright notice in Beckman Instruments ''Feedback'' newsletter, April 1960 (box 44, folder 34)...

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Spectrophotometry

Global file usage

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Usage on zh.wikipedia.org
- 分光光度法

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Image title	HyperFocal: 0
Camera manufacturer	Phase One
Camera model	IQ3 80MP
Exposure time	40,370/2,422,199 sec (0.016666673547467)
ISO speed rating	50
Date and time of data generation	15:17, 8 August 2016
Width	3,276 px
Height	2,668 px
Bits per component	8 8 8
Compression scheme	Uncompressed
Pixel composition	RGB
Orientation	Normal
Number of components	3
Number of rows per strip	1,024
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Capture One 8 Macintosh
Exposure Program	Manual
Exif version	2.2
Date and time of digitizing	15:17, 8 August 2016
Shutter speed	5.90689
Light source	Other light source
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
warning	identify: Unknown field with tag 306 (0x132) encountered. `TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/912. identify: Wrong data type 3 for "PixelXDimension"; tag ignored. `TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/912. identify: Wrong data type 3 for "PixelYDimension"; tag ignored. `TIFFReadCustomDirectory' @ warning/tiff.c/TIFFWarnings/912. identify: Incompatible type for "FileSource"; tag ignored. `TIFFFetchNormalTag' @ warning/tiff.c/TIFFWarnings/912. identify: Incompatible type for "SceneType"; tag ignored. `TIFFFetchNormalTag' @ warning/tiff.c/TIFFWarnings/912.

Retrieved from "https://en.wikipedia.org/wiki/File:Beckman_model_db_n009w2543.tiff"

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media type

image/tiff

checksum

c1f8b34bdc4ee714b2440954538d36a10487647b

data size

26,289,986 byte

height

2,668 pixel

width

3,276 pixel

number of pages

2

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Metadata