Unique Optical System For Conversion Of Existing Photometers Into Scanning Microphotometers

Thomas H. Bulpitt; Richard A. Walker

doi:10.1117/12.7972559

1 August 1980 Unique Optical System For Conversion Of Existing Photometers Into Scanning Microphotometers

Thomas H. Bulpitt, Richard A. Walker

Author Affiliations +

Optical Engineering, Vol. 19, Issue 4, 194561 (August 1980). https://doi.org/10.1117/12.7972559

Abstract

There are many thousands of luminance photometers in the field, both telephotometers and microphotometers; however, very few of these have scanning microphotometric capability. This paper describes a unique optical system that can be field-interchanged with the standard objective lens, without requiring any modification of the photometer's internal optical system, to convert an existing photometer into a high-resolution scanning microphotometer. One embodiment, called the MicroScanner Spatial Scanner, will be described in detail. Used with any standard Pritchard Photometer, this scanner provides variable-speed scanning of a half-inch (12 mm) of object space with field coverage as fine as 0.0001 in. (0.0025 mm) or as broad as 0.39 in. (10 mm). The system features photometric uniformity within ±0.5% over the entire scan distance, freedom from polarization error, and a half-inch scan distance independent of choice of objective lens.

Citation Download Citation

Thomas H. Bulpitt and Richard A. Walker "Unique Optical System For Conversion Of Existing Photometers Into Scanning Microphotometers," Optical Engineering 19(4), 194561 (1 August 1980). https://doi.org/10.1117/12.7972559

Published: 1 August 1980

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE