GB2203534B - Apparatus for assessing the linearity of a diffraction grating under certification - Google Patents
Apparatus for assessing the linearity of a diffraction grating under certificationInfo
- Publication number
- GB2203534B GB2203534B GB8708620A GB8708620A GB2203534B GB 2203534 B GB2203534 B GB 2203534B GB 8708620 A GB8708620 A GB 8708620A GB 8708620 A GB8708620 A GB 8708620A GB 2203534 B GB2203534 B GB 2203534B
- Authority
- GB
- United Kingdom
- Prior art keywords
- linearity
- assessing
- diffraction grating
- grating under
- under certification
- 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 - Fee Related
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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
- G01D5/38—Forming the light into pulses by diffraction gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Transform (AREA)
- Holo Graphy (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8708620A GB2203534B (en) | 1987-04-10 | 1987-04-10 | Apparatus for assessing the linearity of a diffraction grating under certification |
FR8705696A FR2614435B1 (en) | 1987-04-10 | 1987-04-22 | DEVICE FOR ESTIMATING THE LINEARITY OF A HOMOLOGATED DIFFRACTION NETWORK |
DE19873714158 DE3714158A1 (en) | 1987-04-10 | 1987-04-28 | DEVICE FOR EVALUATING THE LINEARITY OF REFLECTING GRIDS TO BE ATTESTED |
CH411187A CH674906A5 (en) | 1987-04-10 | 1987-10-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8708620A GB2203534B (en) | 1987-04-10 | 1987-04-10 | Apparatus for assessing the linearity of a diffraction grating under certification |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8708620D0 GB8708620D0 (en) | 1987-05-13 |
GB2203534A GB2203534A (en) | 1988-10-19 |
GB2203534B true GB2203534B (en) | 1991-05-01 |
Family
ID=10615613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8708620A Expired - Fee Related GB2203534B (en) | 1987-04-10 | 1987-04-10 | Apparatus for assessing the linearity of a diffraction grating under certification |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH674906A5 (en) |
DE (1) | DE3714158A1 (en) |
FR (1) | FR2614435B1 (en) |
GB (1) | GB2203534B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982837A (en) * | 1975-01-24 | 1976-09-28 | Controlled Environment Systems, Inc. | Method and apparatus for calibrating Reseau grids |
JPH0758206B2 (en) * | 1984-03-30 | 1995-06-21 | 株式会社日立製作所 | Position detector using moire fringes |
-
1987
- 1987-04-10 GB GB8708620A patent/GB2203534B/en not_active Expired - Fee Related
- 1987-04-22 FR FR8705696A patent/FR2614435B1/en not_active Expired
- 1987-04-28 DE DE19873714158 patent/DE3714158A1/en not_active Withdrawn
- 1987-10-21 CH CH411187A patent/CH674906A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2614435A1 (en) | 1988-10-28 |
DE3714158A1 (en) | 1988-11-17 |
GB2203534A (en) | 1988-10-19 |
FR2614435B1 (en) | 1989-08-11 |
GB8708620D0 (en) | 1987-05-13 |
CH674906A5 (en) | 1990-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |