GB1327394A - Adjustable slits - Google Patents

Adjustable slits

Info

Publication number
GB1327394A
GB1327394A GB5191969A GB1327394DA GB1327394A GB 1327394 A GB1327394 A GB 1327394A GB 5191969 A GB5191969 A GB 5191969A GB 1327394D A GB1327394D A GB 1327394DA GB 1327394 A GB1327394 A GB 1327394A
Authority
GB
United Kingdom
Prior art keywords
slit
members
spring
springs
rod
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
Application number
GB5191969A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB1327394A publication Critical patent/GB1327394A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/04—Slit arrangements slit adjustment

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Electron Tubes For Measurement (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

1327394 Optical slit mechanism UNITED KINGDOM ATOMIC ENERGY AUTHORITY 13 Oct 1970 [23 Oct 1969] 51919/69 Heading G2J [Also in Division H1] An adjustable slit mechanism for mass-spectrometer or other particle or optical apparatus comprises two members 4, 5 defining the slit 6, each being mounted on a pair of parallel flat springs 7, 7', 8, 8' with their flat faces normal to the slit plane and flexible connections 12, 13 of springy material which may be attached to a common adjustment member 16 moving colinear with the slit. The flat springs may be spot welded to upturned ends of members 4, 5, and fixed end supports 9, 10. Rod 16 is axially moved by calibrated knob 18 spring-loaded by spring 21 the slit width varying approximately as the square of the axial displacement of the rod. Members 4, 5 may be of 0À015 stainless steel with edges chamfered to 0À005 ins or less and overlapping when closed to ensure cut-off. In Fig. 3 (not shown), flexible connections (312), (313) are of spring wire loosely engaging a peg (338) and the slit members are spring-loaded to a closed position by a pair of wire springs (339), (340) spot welded to plate (301) at (341) and engaging holes in extensions (341) and (342). Alternatively, springs (339), (340) may hold the slit open by pulling leftwards, rightward movement of rod (316) effecting closure.
GB5191969A 1969-10-23 1969-10-23 Adjustable slits Expired GB1327394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5191969 1969-10-23

Publications (1)

Publication Number Publication Date
GB1327394A true GB1327394A (en) 1973-08-22

Family

ID=10461925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5191969A Expired GB1327394A (en) 1969-10-23 1969-10-23 Adjustable slits

Country Status (2)

Country Link
US (1) US3717401A (en)
GB (1) GB1327394A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244850A1 (en) * 2002-09-24 2004-04-01 Carl Zeiss Jena Gmbh Adjustable pinhole
DE10323922A1 (en) * 2003-05-22 2004-12-16 Carl Zeiss Jena Gmbh Adjustable pinhole

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408512A (en) * 1942-12-30 1946-10-01 American Optical Corp Device for forming slits
DE1053213B (en) * 1953-12-05 1959-03-19 Zeiss Carl Fa Changeable slit diaphragm, especially for optical devices
US2796804A (en) * 1955-02-10 1957-06-25 Bausch & Lomb Slit mechanism
US3242796A (en) * 1962-04-09 1966-03-29 Beckman Instruments Inc Slit control apparatus
GB1010518A (en) * 1963-02-18 1965-11-17 Commw Scient Ind Res Org Variable width slit operating mechanism
US3393959A (en) * 1963-06-06 1968-07-23 Conductron Corp Light aperture construction
US3410189A (en) * 1966-02-11 1968-11-12 Itek Corp Variable width exposure slit
US3462227A (en) * 1966-05-11 1969-08-19 Beckman Instruments Inc Wavelength programmed monochromator device with adjustable entrance and exit cam operated slit means for providing a variable proportionality factor between their widths

Also Published As

Publication number Publication date
US3717401A (en) 1973-02-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees