GB616967A - Improvements in optical indicating apparatus - Google Patents

Improvements in optical indicating apparatus

Info

Publication number
GB616967A
GB616967A GB13170/44A GB1317044A GB616967A GB 616967 A GB616967 A GB 616967A GB 13170/44 A GB13170/44 A GB 13170/44A GB 1317044 A GB1317044 A GB 1317044A GB 616967 A GB616967 A GB 616967A
Authority
GB
United Kingdom
Prior art keywords
light
bars
indicating
transmitting
july
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
GB13170/44A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB616967A publication Critical patent/GB616967A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/02—Indicating value of two or more variables simultaneously
    • G01D7/04—Indicating value of two or more variables simultaneously using a separate indicating element for each variable
    • G01D7/06—Luminous indications projected on a common screen
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

616,967. Indicating-apparatus. MULINEN, E. VON. July 10, 1944, No. 13170. Convention date, July 19, 1943. [Class 106 (iv)] Optical indicating apparatus for producing an enlarged shadow image of at least a part of a movable light obstructing body comprises a number of tapered bars.capable of transmitting light in their lengthwise directions and arranged side-by-side to form at least one coherent tapered light-transmitting member 26, located between the movable body 10, and an indicating surface 8, with the narrow entrance ends 4 of the bars in close proximity to the shadowthrowing surface 28, so that light coming from the fixed source 13 is transmitted through the bars to the indicating surface 8 which lies in proximity to the wider outlet ends of the bars. Specification 558,501 is referred to. Two light-transmitting members 25, 26 may be arranged side-by-side in a common casing, as shown, or in longitudinal relationship to form a single continuous indicating strip (Fig. 1, not shown). The bars may be of transparent material or of tubular construction with internal reflecting surfaces. The light-transmitting member 26 may be twisted. The shadow-throwing surface 28 may be partly transparent and/or coloured. The indicating surface 8 may be partly coloured and graduated.
GB13170/44A 1943-07-19 1944-07-10 Improvements in optical indicating apparatus Expired GB616967A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH616967X 1943-07-19

Publications (1)

Publication Number Publication Date
GB616967A true GB616967A (en) 1949-01-31

Family

ID=4523825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13170/44A Expired GB616967A (en) 1943-07-19 1944-07-10 Improvements in optical indicating apparatus

Country Status (1)

Country Link
GB (1) GB616967A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043910A (en) * 1958-05-19 1962-07-10 American Optical Corp Fiber optical image transfer devices
US3043179A (en) * 1958-10-29 1962-07-10 American Optical Corp Fiber optical image transfer devices
DE102008047422A1 (en) * 2008-09-15 2010-04-15 Endress + Hauser Wetzer Gmbh + Co Kg Field device i.e. data display device, has projection module arranged within housing, and projection surfaces and housing aligned on each other such that projection surfaces and projected data are visible outside of housing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043910A (en) * 1958-05-19 1962-07-10 American Optical Corp Fiber optical image transfer devices
US3043179A (en) * 1958-10-29 1962-07-10 American Optical Corp Fiber optical image transfer devices
DE102008047422A1 (en) * 2008-09-15 2010-04-15 Endress + Hauser Wetzer Gmbh + Co Kg Field device i.e. data display device, has projection module arranged within housing, and projection surfaces and housing aligned on each other such that projection surfaces and projected data are visible outside of housing

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