Method and apparatus for acoustic supervision of adjustment operations at optical devices

Claim 1

A method for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, comprising the steps of: subdividing the reference plane into surface area elements, and defining and storing a desired intensity value I s for each surface area element so as to create a stored desired intensity distribution; measuring each of the surface area elements in a first cyclical successsion actual intensity values I i resulting at each of said surface area elements as a result of illumination by the light bundle; calculating and storing for each of the surface area elements associated intensity deviations between said desired intensity values I s and actual intensity values I i ; successively reading out in a second cyclical succession the intensity deviations; generating an oscillation signal and modulating at least one parameter of the oscillation signal to create a modulated oscillation signal dependent on the associated intensity deviations; and converting the modulated oscillation signal into modulated audible measuring tones, said modulated audible measuring tones representing for the surface area elements a deviation of the intensity distribution from the desired intensity distribution.

Claim 2

A method for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, comprising the steps of: subdividing the reference plane into surface area elements, and defining and storing a desired intensity value I s for each surface area element so as to create a stored desired intensity distribution; measuring each of the surface area elements in a first cyclical successsion actual intensity values I i resulting at each of said surface area elements as a result of illumination by the light bundle; calculating and storing for each of the surface area elements associated intensity deviations between said desired intensity values I s and actual intensity values I i ; successively reading out in a second cyclical succession the intensity deviations; generating an oscillation signal and modulating at least one parameter of the oscillation signal to create a modulated oscillation signal dependent on the associated intensity deviations; and converting the modulated oscillation signal into modulated audible measuring tones, said modulated audible measuring tones representing for the surface area elements a deviation of the intensity distribution from the desired intensity distribution.

Claim 10

A method for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, comprising the steps of: subdividing the reference plane into surface area elements, and defining and storing a desired intensity value I s for each surface area element so as to create a stored desired intensity distribution; measuring each of the surface area elements in a first cyclical succession actual intensity values I i resulting at each of said surface area elements as a result of illumination by the light bundle and simultaneously reading out the desired intensity values I s from the surface area elements; calculating and storing for each of the surface area elements associated intensity deviations between said desired intensity values I s and actual intensity values I i ; successively reading out in a second cyclical succession the stored intensity deviations; and generating an audible oscillation signal and modulating a frequency of the oscillation signal to create a modulated oscillation signal dependent on a magnitude of each of the associated intensity deviations.

Claim 11

A method for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, comprising the steps of: subdividing the reference plane into surface area elements, and defining and storing a desired intensity value I s for each surface area element so as to create a stored desired intensity distribution; measuring each of the surface area elements in a first cyclical succession actual intensity values I i resulting at each of said surface area elements as a result of illumination by the light bundle and simultaneously reading out the desired intensity values I s from the surface area elements; calculating and storing for each of the surface area elements associated intensity deviations between said desired intensity values I s and actual intensity values I i ; successively reading out in a second cyclical succession the stored intensity deviations; and generating an audible oscillation signal and modulating a frequency of the oscillation signal to create a modulated oscillation signal dependent on a magnitude of each of the associated intensity deviations.

Claim 12

An apparatus for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, said reference plane being subdivided into surface elements, comprising: (a) an opto-electronic measuring installation means for measuring actual intensity values I i at surface elements of the reference plane; (b) a multiplexer means connected to the measuring installation means for cyclical, successive connection through of the actual intensity values I i ; (c) an A/D converter means connected to the multiplexer means for digitization of the actual intensity values I i ; (d) a rated value memory means for deposit of desired intensity values I s for the surface elements of the reference plane so as to create a stored desired intensity distribution; (e) an identification stage means connected to the rated value memory means and to the A/D converter means for identification of intensity deviations ΔI between the desired intensity values I s and the actual intensity values I i for the surface elements; (f) a buffer memory means connected to the identification stage means for intermediate storage of the intensity deviations ΔI; (g) a D/A converter means communicating with the buffer memory means for formation of analog intensity deviations; (h) an oscillation generator means connected to the D/A converter means and controlled by the intensity deviations for generating an oscillation of which at least one parameter is modified dependent on the intensity deviations; (i) an electro-acoustical transducer means connected to the oscillation generator means for converting into a measuring tone the oscillation whose at least one parameter is modified; (j) a first control generator means connected to the multiplexer means, to the rated value memory means, and to the buffer memory means for connection through of the actual intensity values I i , for read-out of the desired intensity values I s from the rated value memory means, and for writing the intensity deviations ΔI into the buffer memory means; and (k) a second control generator means connected to the buffer memory means for reading out the intermediately stored intensity deviations ΔI.

Claim 13

An apparatus for acoustic supervision of adjustment of a light bundle with respect to its intensity distribution in a reference plane which is at right angles to an optical axis of the light bundle, said reference plane being subdivided into surface elements, comprising: (a) an opto-electronic measuring installation means for measuring actual intensity values I i at surface elements of the reference plane; (b) a multiplexer means connected to the measuring installation means for cyclical, successive connection through of the actual intensity values I i ; (c) an A/D converter means connected to the multiplexer means for digitization of the actual intensity values I i ; (d) a rated value memory means for deposit of desired intensity values I s for the surface elements of the reference plane so as to create a stored desired intensity distribution; (e) an identification stage means connected to the rated value memory means and to the A/D converter means for identification of intensity deviations ΔI between the desired intensity values I s and the actual intensity values I i for the surface elements; (f) a buffer memory means connected to the identification stage means for intermediate storage of the intensity deviations ΔI; (g) a D/A converter means communicating with the buffer memory means for formation of analog intensity deviations; (h) an oscillation generator means connected to the D/A converter means and controlled by the intensity deviations for generating an oscillation of which at least one parameter is modified dependent on the intensity deviations; (i) an electro-acoustical transducer means connected to the oscillation generator means for converting into a measuring tone the oscillation whose at least one parameter is modified; (j) a first control generator means connected to the multiplexer means, to the rated value memory means, and to the buffer memory means for connection through of the actual intensity values I i , for read-out of the desired intensity values I s from the rated value memory means, and for writing the intensity deviations ΔI into the buffer memory means; and (k) a second control generator means connected to the buffer memory means for reading out the intermediately stored intensity deviations ΔI.