Optics Help: Lens and Mirror Specs for 100m Image

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Homework Help Overview

The discussion revolves around the specifications needed for a lens and mirror setup to view an image at a distance of 100 meters. The original poster is exploring the use of a split beam mirror or prism to achieve this, questioning the clarity of the image and the advantages of different optical components.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the requirements for lens and mirror specifications, the potential clarity issues with a split beam mirror, and the feasibility of using natural sunlight with these optical devices. There are inquiries about the differences between camera lenses and binocular lenses, as well as the implications of using various optical setups.

Discussion Status

The conversation is ongoing, with participants providing insights and asking clarifying questions about the optical device being developed. Some guidance has been offered regarding the nature of the optical components, but no consensus has been reached on specific solutions or configurations.

Contextual Notes

The original poster has a confined working space of 6-10 inches and is seeking to understand the implications of different lens specifications, including the significance of measurements like 18mm, 34mm, and 55mm in relation to lens and image distance.

ashwin33
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Homework Statement



[PLAIN]http://img602.imageshack.us/img602/2301/82412829.jpg

for image situated at 100 metres distance from the lens and need to reflect the image that is captured form the lens using a mirror
so that their will be clear visiblity of the the obj
what should be the specifications of the lens
what should be the mirror specifications & will their be any problem in clarity of the image if i use a split beam mirror
and what will be advantages using a spit beam mirror or a prism beam spliter


Homework Equations



actually i am not belonging to this subject
but in my case i need to copy some equations for net. which i don't want to

The Attempt at a Solution




p.s: this is not any home work problem... this will be help full in my work
 
Last edited by a moderator:
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ashwin33 said:

Homework Statement



[PLAIN]http://img602.imageshack.us/img602/2301/82412829.jpg

for image situated at 100 metres distance from the lens and need to reflect the image that is captured form the lens using a mirror
so that their will be clear visiblity of the the obj
what should be the specifications of the lens
what should be the mirror specifications & will their be any problem in clarity of the image if i use a split beam mirror
and what will be advantages using a spit beam mirror or a prism beam spliter


Homework Equations



actually i am not belonging to this subject
but in my case i need to copy some equations for net. which i don't want to

The Attempt at a Solution




p.s: this is not any home work problem... this will be help full in my work

Welcome to the PF.

How will this be helpful in your work? What are you trying to build?
 
Last edited by a moderator:
thanks for ur welcome

i am a freelance trying to make a optical device which will be able to see image at certain angles apart form line of sight so that the image be viewed at 2 angles at the given point of time (i.e: line of sight and 45 deg from line of sight ) using split beam mirror or prism

and one more question
i can only see images and some information regarding split beam ..in every image it is used with laser ..will it be useful if i use it with natural sun light?
 
ashwin33 said:
thanks for ur welcome

i am a freelance trying to make a optical device which will be able to see image at certain angles apart form line of sight so that the image be viewed at 2 angles at the given point of time (i.e: line of sight and 45 deg from line of sight ) using split beam mirror or prism

and one more question
i can only see images and some information regarding split beam ..in every image it is used with laser ..will it be useful if i use it with natural sun light?

Sounds a bit like a Heads-Up Display arrangement?

http://en.wikipedia.org/wiki/Heads_up_display

.
 
berkeman said:
Sounds a bit like a Heads-Up Display arrangement?

http://en.wikipedia.org/wiki/Heads_up_display

.

not exactly but yes
it the same principle used for autocollimator also

actually i made a basic POC using a mirror and normal glass (it works)

now my problem is
are the lens used in cameras and the lens used in binoculars same?
what are the possible lens specifications to be use for a to veiw a object at a distance of 100m
and what are the pros and cons of spilt prism and split mirror , what will be the quality of the image?
and is there any other way to split the natural light beam apart form the above mentioned ways

and i have a confined space (my working space is 6-10 inches max)

Focal_length.jpg


what is this 18mm ,34mm and 55 mm is this the distance between lens and image or some thing else?
i can only find least difference in bigger bottle ...
can i have a varible lens that has a range of 18mm-55mm
 
Last edited:

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